Robust, Sturdy & Affordable Chinese Style
Double Girder Open Winch Crane

Overview of Open Winch Crane Double Girder

Overhead electric winch crane is China traditional heavy duty double girder overhead crane equipped winch trolley,Robust & Sturdy, Affordable industrial overhead winch cranes.

QD types electric open winch double girder overhead cranes is a typical Chinese traditional heavy duty double girder overhead cranes, with powerful open winch as the lifting system and strong welded box shape crane girder, featured as robust and sturdy, stable and long working life, which is a safe and economical overhead crane solution, widely recognized around world.QD type double girder winch crane is widely applied for general material handling with capacity from 5 ton and up to 550 ton which can satisfy heavy duty frequently using.

Custom designed QD series of double girder overhead electric winch crane is the right selection for sturdy and economical lifting solution for your workshop and other heavy duty applications. Double girder winch crane is able to make full use of the space above the bridge with little obstacles from the ground facilities. In a word, the QD series overhead double girder open winch cranes with hooks is one of the most widely used lifting equipment for big capacity material handling.

Main Parameters of Overhead Open Winch Crane

The QD heavy duty electric winch crane is a double girder overhead crane with open winch as the lifting system and with crane hook as the lifting tool. Standard electric winch crane and nonstandard winch cranes are all available. For non standard open winch crane, please contact us to confirm the details . The specifications of the open winch overhead crane is for your reference.

Main Parameters of Overhead Open Winch Cranes

• Overhead Crane Type： QD type open winch double girder overhead crane
• Lifting Capacity of Overhead Open Winch Crane: 5~550 ton ( 5 ton, 10 ton, 16 ton / 3.2 ton, 20 ton / 5 ton, 32 ton / 5 ton, 50 ton / 10 ton,75 ton / 20 ton, 100 ton / 20 ton, 125 ton / 32 ton, 150 ton / 30 ton, 160ton / 32 ton, 200 ton / 50 ton, 250 ton / 50 ton,300ton / 75 ton, 350ton / 80 ton, 400 ton / 80 ton, 450 ton / 100 ton, 500ton / 100 ton, 550 ton / 100 ton)
• Span Length of Open Winch Crane:10.5 m~35.5m (10.5 m, 13.5 m, 16.5 m, 19.5 m, 22.5 m, 25.5 m, 28.5 m, 31.5m)
• Ambient Temperature of Overhead Open Winch Crane:-20~40℃
• Working Class of Overhead Open Winch Crane:A4~A7

Note：the working class of the open winch crane for your reference:

• A5(For industrial workshops which have no frequent requirement of winch cranes, such as, general machining workshops and assembly workshops)
• A6 (For industrial workshops which have more frequentrequirement of winch cranes, such as, in metallurgy workshops, casting workshops and other steel mill and steel factory workshops, etc )
• A7 ( For busy workshops which need winch crane operation at very high frequency, such as, the hoisting of melted hot metal,and ladle handling, etc. )

Sturdy Chinese traditional overhead open winch cranes, equipped with various types of crane hooks is able to handle various lifting works in the workshops of different industries from processing, transporting, storing and maintaining and others, etc. The QD type open winch cranes is featured heavy duty, wide capacity, durable & affordable crane price. Contact us to get your custom overhead electric winch crane price now.

The QD Double Girder Open Winch Crane is a popular choice for heavy-duty lifting. It's built to handle large, heavy loads with great precision and power. This crane's double girder design makes it especially strong and stable, allowing it to lift and move very heavy materials safely and efficiently.

In short, the QD Double Girder Open Winch Crane is ideal for industries that need a reliable crane for heavy lifting, whether it's in a factory, construction site, or warehouse.

Basics of QD Double Girder Open Winch Crane

The QD Double Girder Open Winch Crane is a heavy-duty lifting solution commonly used in industrial applications. It is designed with a double girder structure, which offers added strength and stability compared to single girder cranes. The crane's "open winch" mechanism allows precise and efficient control for lifting and lowering loads, making it suitable for a wide range of tasks. Its robust construction and high lifting capacity make it ideal for handling large and heavy materials in demanding environments.

What is a QD Double Girder Open Winch Crane? A QD Double Girder Open Winch Crane consists of two parallel beams (girders) that support the crane's lifting mechanism. The "open winch" refers to the system used for raising and lowering loads. This crane is versatile and can be customized to handle various lifting tools, such as hooks, magnets, and grabs. It is built to perform with high efficiency, precision, and safety, even in heavy-duty environments.

Key Components and Structure of the Crane

• Main Girders: The primary structural component, providing strength and stability. Made of high-quality steel, these girders are welded into a box structure to ensure durability.
• Trolley and Hoist: The trolley moves along the main girders and houses the hoist mechanism, which raises and lowers the load.
• End Carriages: These are the components at either end of the crane that support the main girders and allow the crane to travel along its tracks.
• Electrical Control System: An advanced system for controlling the crane's movement, lifting, and safety features. It can be operated via a cabin, pendant, or remote control.
• Safety Features: Includes overload limiters, emergency stops, and automatic brakes to ensure safe operation.

Applications

The overhead electric winch crane is widely used for general material handling in various industrial workshops but it is not supposed to be used in the working environment which is combustible, explosive or corrosives, etc. QD type electric winch crane isrecommended for heavy duty lifting and transporting where heavy capacities and longer spans is required.

QD type bridge open winch crane is applicable to multiple fields for loading and unloading, transferring, assembling, and repairing forPre Engineered Steel Building, Steel Factory Plant, Steel Product Processing Factory,Oil Industry, Plastic Factory Plant, Cement Factory, Power Factory, Mine Industry, Food Industry, Chemical Industry, Cable Production Plant, Machine Tools, Carton / Truck Manufacturing Industry, Transport Company, Construction Company, Electrical Plant Shipyard, Stone Yard, and Stone Pit, Mable and Granite Processing Factory, Installation and Maintenance etc.

The QD Double Girder Open Winch Crane is used in a variety of industries, including:

• Manufacturing: In factories and plants, it is used to lift heavy machinery, components, and raw materials. It can move large parts in automotive, steel, and machinery production lines.
• Warehouses: The crane helps in the efficient storage and movement of heavy materials, containers, and products within large warehouse facilities.
• Construction: It is essential in construction sites for lifting steel beams, concrete blocks, and heavy equipment. Its versatility allows it to handle a range of materials.
• Ports: Used for loading and unloading ships, containers, and heavy cargo. Its strong lifting capacity makes it ideal for port operations where large weights are common.

Ideal Environments for This Type of Crane

• Indoor and Outdoor Use: The QD Double Girder Open Winch Crane is suitable for both indoor and outdoor environments. It can be used in factories, warehouses, or open-air construction sites. When used outdoors, the crane is equipped with rainproof devices to withstand weather conditions.
• Heavy-Duty Lifting: The crane is designed to handle large, heavy loads, making it perfect for industrial operations requiring frequent lifting of substantial weights. It works well in demanding environments where strength and reliability are essential.
• Extreme Working Conditions: This crane can operate in environments with high temperatures, extreme humidity, or heavy dust. It is designed to handle the challenges of industrial and construction environments.

Key Features of QD Double Girder Open Winch Crane

Heavy-Duty Performance

• Load Capacity Range: The QD Double Girder Open Winch Crane is designed for heavy-duty lifting, with a broad load capacity range from 3 tons to 500 tons. This allows it to handle everything from smaller loads in warehouses to large, industrial materials in manufacturing and construction sites.
• Frequent Use in Demanding Operations: Its robust design and powerful lifting capabilities make it ideal for industries that require continuous and demanding operations. It can handle frequent lifting tasks, often under harsh working conditions, ensuring high performance and minimal downtime.

Design and Structure

• Box-Shaped Main Girder for Strength and Rigidity: The crane's main girder is constructed in a box shape, providing exceptional strength and rigidity. This design enhances the crane's stability and helps distribute heavy loads evenly, preventing any structural strain and ensuring long-term durability.
• Double Girder Configuration for Enhanced Stability: The double girder setup provides added stability and load-bearing capacity. This design improves the crane's lifting capacity and ensures it operates efficiently, even when handling very heavy or oversized loads. The double girder also offers better load distribution, reducing the wear and tear on the crane's components.

Efficient Lifting Mechanism

• Use of Winch and Hoist System: The crane is equipped with a winch and hoist system, which allows for smooth and controlled lifting and lowering of loads. The winch provides powerful lifting capabilities, while the hoist ensures precision when moving materials.
• Trolley and Hoist Design for Smooth Operation: The crane features a trolley that moves along the main girder and a hoist that raises and lowers the load. Together, these components are designed for smooth and precise operation, ensuring that the crane can handle various loads with minimal friction and noise.

Advanced Control Systems

Control Options: The QD Double Girder Open Winch Crane can be operated using multiple control options:

• Ground Pendant: A manual control system for easy operation from the ground level.
• Remote Control: A wireless control option, ideal for situations requiring movement from a distance.
• Driver's Cabin: A fully enclosed cabin where the operator can control all crane functions. This option offers full visibility and comfort, especially for long shifts and high-precision work.

Speed Control Options: The crane is equipped with frequency inverter technology, allowing for precise speed control. This feature is crucial for delicate lifting tasks, ensuring that loads are moved smoothly and safely without jerking or abrupt movements.

Safety Features

• Limit Switches: The crane is equipped with limit switches that help prevent over-travel of the hoist, ensuring that the crane operates within safe parameters.
• Overload Protectors: The crane is also fitted with overload protectors, which automatically stop the crane if the load exceeds its rated capacity. This safety feature helps prevent accidents and protects both the crane and the operator from damage.
• Other Safety Devices: Additional safety devices include emergency stop buttons, brake systems, and anti-collision devices to further enhance operational safety. These features are designed to ensure safe operation in a variety of working conditions.

Advantages & Features of Overhead Winch Crane

• Big capacity, Heavy Duty, Flexible operation, High Efficient,
• Easy for installation and maintenance, wide application ( High Temperature, explosive, corrosive , and other harrasisve environment with custom designs);
• Strong rigidity, sturdy , stable, and Long Life Span: 30-50years;
• Frequency inverter speed control make your lifting more precise.
• Control method is crane cabin control or remote control or mix.
• Depending on lifting loads, the open winch crane can work with crane hooks, electricmagnetic carrier beam, magnet chuck , Grab or C hook;
• Safety devices such as moving limit switch, loading limit and other standard safety devices are all equipted to make your winch crane and staff working with high safety.
• Competitive overhead crane price without any comprising of crane quality. CE open winch crane at good price. Inquiry us now.

Load Capacity

The QD Double Girder Open Winch Crane offers a wide range of load capacities, making it adaptable to various lifting needs:

• Light-duty models: 3T – 10T for smaller tasks in warehouses and light industrial operations.
• Medium-duty models: 16/3.2T – 63/10T for general manufacturing and heavier lifting tasks.
• Heavy-duty models: 75/20T – 100/20T for industrial plants requiring robust lifting solutions for larger loads.
• Extra heavy-duty models: Ranging from 125/30T – 200/50T, 250/75T – 300/75T, and even up to 500/80T for extremely heavy lifting, such as in construction, shipyards, and steel mills.

This broad capacity range ensures that the crane can be customized to suit the specific needs of any operation, from light lifting to the heaviest industrial applications.

• Lifting Height: The lifting height is customizable to match the specific requirements of the operation, with standard options ranging from 6 meters to 36 meters. This flexibility ensures that the crane can be tailored to different building heights or lifting requirements. For specialized applications, custom lifting heights can be requested, ensuring that the crane works optimally within your operational space.
• Span: The span (the horizontal distance between the two girders) of the crane is another flexible feature. Standard spans range from 10.5 meters to 31.5 meters, giving the crane the ability to cover a wide range of areas within a factory, warehouse, or dockyard. Custom spans can also be designed to accommodate specific layout requirements, ensuring efficient lifting across large workspaces.
• Traveling Speed：The traveling speed determines how quickly the crane moves along the rails. For most applications, traveling speed ranges from 20 m/min to 60 m/min, depending on the load and specific crane model. The inclusion of a variable frequency drive allows for precise speed control, making it possible to adjust the speed for different lifting and transportation tasks.
• Lifting Speed: Lifting speed, which affects how quickly the crane raises or lowers a load, typically ranges from 3 m/min to 10 m/min. This speed can be adjusted based on the weight of the load to optimize performance, ensuring that the crane operates efficiently whether handling lighter loads or heavier materials. Adjustable lifting speed is a key feature for operations that require both precision and efficiency.
• Trolley Speed： The trolley speed refers to how fast the hoisting mechanism moves horizontally along the girder. Typical speeds for the trolley range from 10 m/min to 30 m/min, with options for customized speeds depending on operational needs. Faster trolley speeds improve productivity in facilities where quick, repetitive lifting is essential, while slower speeds offer more control for precision tasks.
• Power Supply： The standard power supply for the QD Double Girder Open Winch Crane is 380V, 50Hz, 3-phase AC, which is commonly used in industrial environments. However, the crane can be customized to fit the local grid specifications, with different voltages and frequency options available to match regional power supplies.

Hot Sale Capacities for QD Double Girder Open Winch Cranes

5 Tons Capacity

• Common Applications: Ideal for light industrial and warehouse operations, where moderate lifting is required.
• Main Hook: Handles regular lifting tasks for materials like small equipment, tools, and machinery.
• Auxiliary Hook: Used for precise control of lighter loads, ensuring safe and accurate handling of smaller components.

10 Tons Capacity

• Common Applications: Widely used in medium-duty lifting tasks across industries such as manufacturing, logistics, and construction.
• Main Hook: Lifts heavier loads such as steel beams, components, or large machines.
• Auxiliary Hook: Handles smaller, lighter items, allowing dual lifting operations where heavy and light components are needed simultaneously.

16/3.2 Tons (Dual Capacity)

• Main Hook: Lifts up to 16 tons, handling large, heavy objects like equipment, structural parts, and machinery.
• Auxiliary Hook: Supports lifting of lighter loads up to 3.2 tons, offering precise control for smaller components.
• Key Benefit: This dual capacity is highly effective for simultaneous lifting of items with differing weights, enhancing productivity by streamlining lifting operations.

20/5 Tons (Dual Capacity)

• Main Hook: Lifts up to 20 tons, suitable for large and heavy loads like machinery or large building materials.
• Auxiliary Hook: Can lift smaller items up to 5 tons, allowing the crane to handle both light and heavy tasks at the same time.
• Key Benefit: Provides flexibility in tasks requiring lifting of both heavy and light components, making it suitable for industries with diverse lifting needs.

32/5 Tons (Dual Capacity)

• Main Hook: Capable of lifting up to 32 tons, ideal for large-scale manufacturing, construction, and infrastructure projects.
• Auxiliary Hook: Lifts up to 5 tons, handling lighter components alongside heavy loads.
• Key Benefit: Offers flexibility in handling multiple components of varying sizes and weights simultaneously, making it suitable for complex and demanding industrial applications.

50/10 Tons (Dual Capacity)

• Main Hook: Handles heavy-duty lifting tasks up to 50 tons, suitable for large machinery, heavy equipment, or industrial components.
• Auxiliary Hook: Supports up to 10 tons, managing smaller items or assisting with dual load operations.
• Key Benefit: This crane capacity is ideal for industries requiring frequent handling of both large and smaller loads, providing a versatile lifting solution for construction and manufacturing.

75/20 Tons (Dual Capacity)

• Main Hook: Lifts heavy loads up to 75 tons, typically used for the most demanding industrial operations.
• Auxiliary Hook: Lifts lighter loads up to 20 tons, allowing for dual operations when handling multiple types of loads.
• Key Benefit: Commonly used in large-scale industrial operations where both large and small components need to be lifted simultaneously for greater operational efficiency.

100/20 Tons (Dual Capacity)

• Main Hook: Handles up to 100 tons, making it ideal for the heaviest lifting tasks, such as in shipbuilding, heavy machinery, and infrastructure projects.
• Auxiliary Hook: Handles up to 20 tons, allowing for the simultaneous lifting of lighter loads alongside very heavy components.
• Key Benefit: This crane configuration is perfect for the most demanding projects, offering flexibility and power for industries requiring large-scale lifting solutions, such as heavy construction and machinery handling.

20 ton overhead crane double girder with heavy duty open winch

32 ton overhead crane double girder with heavy duty open winch

50/5 ton overhead crane double girder with heavy duty open winh

Configuration & Main Components

QD types electric open winch double girder overhead cranes is a typical Chinese traditional heavy duty double girder overhead cranes, with powerful open winch as the lifting system, running on the rail seated on the strong welded box shape crane girder, working together with different types of cranes hooks for vast material handling.

The double girder overhead winch crane is consisted of crane bridge, crane traveling mechanism, open winch and trolley, electrical equipment, crane hook, and safety protection devices, such as, Overload limiter, limit switch, interlocking protection devices, main disconnecting switch, emergency stop system and motor overload protection, crane buffer, track sweep plate, bus bar protection board, anti-collision device,etc.

Crane driver's Cabin: The operation of the heavy duty crane is conducted through the joysticks , which provide more comfortability and safety working environment for crane driver. And also a manually reset emergency stop button is outfitted to ensure safe operation further.

Main Girder

The main girder is a critical component of the QD Double Girder Open Winch Crane, designed for maximum strength and durability:

• Box welded structure: The main girder features a box welded design, which offers superior strength and resistance to bending or deformation, even under heavy loads. This structure is ideal for heavy-duty applications where reliability is essential.
• Material used: High-quality carbon steel (such as Q235B or Q345B) is used for the main girder, ensuring excellent load-bearing capacity and long-term durability. These materials are well-regarded for their strength and resistance to wear, making them ideal for crane operations.
• Standard camber: A slight camber is incorporated into the design of the girder to counteract the deflection that may occur under load. This ensures that the crane remains level and maintains proper geometry during lifting, reducing the risk of strain or instability during operation.

End Carriage and Trolley

The end carriage and trolley are designed for stability, efficient movement, and reduced wear:

• End carriage construction: The end carriage is built using high-strength rectangular tubes, which provide robust support and stability, ensuring that the crane's lifting mechanisms move smoothly and safely along the span.
• Butter motor drive with roller bearings: The end carriage is equipped with a butter motor drive that uses roller bearings to reduce friction and wear. This setup extends the lifespan of the crane while ensuring smoother movement and minimizing maintenance needs.

Wheel and Rail Systems

The wheel and rail system plays a key role in ensuring smooth, reliable, and safe crane movement:

• High-quality wheels: The crane uses forged or cast steel wheels, which are heat-treated to increase their strength and wear resistance. This makes them ideal for heavy-duty lifting, as they can support large loads without compromising the stability of the crane.
• Rail system design: The rails are specifically designed to support the heavy loads carried by the crane and facilitate smooth, consistent movement. The rail system is built to last, with high-quality materials that can withstand the stresses of continuous operation.
• Customization options: The rail system can be customized to suit the specific layout and operational requirements of different facilities. Custom rails ensure optimal compatibility with the crane and smooth, efficient movement across the workspace.

These structural features combine to create a crane that is both strong and reliable, designed to handle the demands of heavy-duty lifting with ease.

Open Winch Trolley

The Open Winch Trolley is a crucial component of the QD Double Girder Open Winch Crane, responsible for the smooth and efficient lifting of loads. This system consists of a winch mechanism mounted on a trolley that moves along the crane's girder to transport heavy loads horizontally.

The open winch trolley for the QD type overhead cranes is usually consisted of, electric crane winch, winch trolley frame, open winch lifting mechanism and winch trolley traveling mechanism, etc. Here's a closer look at its design and operation:

• Lifting Capacity: The winch trolley is designed to lift and transport heavy loads, with capacities matching the overall crane's specifications. For example, it can be configured for capacities ranging from 3T to 500T, depending on the application needs.
• Trolley Design: The trolley moves along the crane's bridge (the girder), carrying the lifting hoist and winch mechanism. The design ensures stability and smooth operation even under full load, helping reduce stress on the crane structure.
• Lifting Mechanism: The winch trolley features a high-efficiency winch system that lifts heavy materials with minimal effort. It consists of a hoist, rope drum, and lifting motor. The hoist is used to raise and lower the load, while the winch controls the speed and smoothness of the lift.
• Smooth Operation: The winch trolley is designed for precise and controlled lifting. It provides consistent performance, ensuring accurate positioning of the load during lifting and lowering operations, which is crucial for preventing damage to materials or equipment.
• Power Supply: The winch trolley is powered by electrical motors that drive the hoisting and movement mechanisms. The system often includes variable frequency drives for speed control, offering smoother acceleration and deceleration to protect the load and extend equipment life.

Trolley Frame

The Trolley Frame serves as the structural base that supports the winch trolley and ensures the stability of the lifting system. It is designed to carry the weight of the hoisting mechanism and any additional load attached to the crane. The trolley frame design is a key element in ensuring the crane's overall strength, balance, and safe operation.

• Material and Strength: The trolley frame is typically made from high-strength steel, which offers excellent load-bearing capacity. This material ensures the frame can safely carry heavy loads without deformation or failure, even under demanding lifting operations.
• Frame Design: The frame is designed to be rigid yet lightweight, allowing it to move smoothly across the crane's beams. The frame is often box-shaped or rectangular to provide the necessary stability and rigidity, ensuring that the winch and load are securely supported during operation.
• Roller and Bearing System: The trolley frame incorporates a roller bearing system that allows the frame to move smoothly along the rail of the crane's girder. This minimizes friction and wear, ensuring the trolley moves efficiently with minimal maintenance. The roller system is carefully selected to withstand the high loads and stresses associated with lifting heavy materials.
• Customization: The trolley frame can be customized to meet specific operational requirements, such as varying span widths or load capacities. Manufacturers often design the frame to fit the exact specifications of the crane, ensuring that it integrates seamlessly into the overall system for maximum efficiency and reliability.

Combined System: Performance and Efficiency

When combined, the open winch trolley and trolley frame create an efficient, durable lifting system for the QD Double Girder Open Winch Crane. This system is designed to meet the needs of heavy-duty industrial operations:

• Heavy-duty Lifting: The winch trolley and frame are built to handle demanding lifting tasks, often used in manufacturing plants, warehouses, construction sites, and ports.
• Smooth and Precise Operation: Together, they ensure smooth horizontal and vertical load movement with controlled speed, minimizing the risk of equipment failure or material damage.
• Safety Features: Safety features like limit switches, overload protection, and anti-collision systems are often integrated into the winch trolley and frame design to enhance safety during operation.

This lifting system offers outstanding reliability, efficiency, and safety, making it the ideal solution for demanding industrial applications requiring heavy and frequent lifting.

The crane parts and components of the QD type overhead winch crane mentioned above are for your reference and the details of custom electric open winch cranes will presented after the confirmation of the main parameters of the winch overhead crane Free consultation and crane drawing is available by leaving your inquiry below.

Overhead cranes are essential for industries that need to lift and move heavy loads. These cranes are designed to travel along an elevated rail system, making them perfect for factories, warehouses, and construction sites. They help reduce the need for additional equipment or manual labor, improving efficiency in material handling.

main girder

end carriage

open winch trolley

crane cabin

QD Electric Open Winch Cranes Double Girder with Main Hook and Auxiliary Hook

QD double girder open winch cranes are heavy-duty cranes designed to meet the needs of industrial operations that require high lifting capacities and reliable performance. These cranes are equipped with a double girder system, which enhances stability and allows them to handle significantly heavier loads compared to single girder designs. The open winch design further improves efficiency by providing smooth and controlled lifting motions.

• Double Girder Design: Two horizontal beams provide better support for lifting heavier loads.
• Open Winch Mechanism: Uses a winch to control the lifting and lowering of loads.
• Application Versatility: Suitable for a variety of industries, including manufacturing, construction, and logistics.

Significance of Main and Auxiliary Hooks

The main hook and auxiliary hook are key components in the QD double girder crane system. They provide dual lifting functionality, allowing for simultaneous lifting of both heavy and light loads. This flexibility significantly enhances the crane's efficiency and safety in diverse operational environments.

Main Hook:

• Used for lifting heavy loads, such as machinery or large structures.
• Offers high lifting capacities ranging from 5 tons to over 100 tons, depending on the crane's model.
• Essential for primary lifting tasks in industries requiring heavy-duty lifting capabilities.

Auxiliary Hook:

• Handles lighter loads, usually smaller components or tools.
• Capacity typically ranges from 3.2 tons to 20 tons.
• Enables dual load operations by allowing simultaneous lifting of both light and heavy items.

Dual Hook Operations and Benefits

The main and auxiliary hooks provide distinct operational benefits, enhancing both efficiency and safety in various lifting applications.

• Dual Load Lifting:Allows for the lifting of different load types at the same time.Saves time and reduces the need for multiple cranes or handling equipment.
• Increased Efficiency:Operators can switch between hooks based on the load type, optimizing the lifting process.Supports faster operations without compromising safety.
• Safety Considerations:Prevents overloading by correctly distributing the lifting weight between the two hooks.Reduces the risk of accidents by ensuring that loads are balanced and securely lifted.

By using the main and auxiliary hooks together, QD double girder open winch cranes offer significant operational flexibility, improving overall workflow while maintaining high safety standards.

Crane Hooks for Overhead Winch Crane

For heavy loads handling, hook group is the most frequently selected lifting tool, which is composed of crane hook, hook nut, hook beam, hook latch, thrust bearing, pulley and pulley bearing, etc.

The hooks for winch cranes are available in various types, such as, single hooks, double hooks and C-shaped hooks, all of which has its own merits and demerits in terms of lifting capacity, safety and the ease of use.

double hook open winch crane 

Heavy Duty Open winch Crane Hook with Single Hook Design

Heavy Duty Crane Hook with Double hook Design

• Single hook is mostly equipped on light and moderate electric winch crane with capacity ≤ 80 ton， with the features of easy to use and simple manufacturing.
• Double hook is usually used on heavy duty crane, which can withstand more stress than single crane hook.
• C-shaped hook is widely used for uploading and downloading from ships.

The capacity of crane hook is largely defined by its strength and work duty of hoisting mechanism. If you need any crane hook, please feel free to contact us.

Benefits of QD Double Girder Open Winch Crane

Efficiency and Productivity

• Faster Material Handling: The QD Double Girder Open Winch Crane significantly improves material handling efficiency. Its high-speed operation, combined with smooth movement along the girder, allows for quick loading, unloading, and transportation of materials. This is especially beneficial in industries where fast turnaround is crucial, such as in manufacturing or shipping operations.
• Increased Throughput: With its ability to carry heavy loads quickly and efficiently, the crane contributes to higher throughput in busy industrial environments. The fast lifting speeds and precise control over the load's movement reduce waiting times, allowing for more operations in less time, which directly impacts productivity levels.

Durability and Longevity

• Long Lifespan: When properly maintained, the QD Double Girder Open Winch Crane is built to last. Its robust construction, featuring high-quality materials like carbon steel and durable components, ensures a long lifespan . With regular inspections and maintenance, the crane can continue to perform at peak efficiency throughout its service life.
• Reduced Downtime and Maintenance Costs: Thanks to its reliable design and strong structural integrity, the QD crane minimizes the frequency of repairs and maintenance. Components like the winch trolley and bearing system are built to handle heavy-duty lifting with minimal wear and tear. This results in lower operational costs over time, as both downtime and repair costs are significantly reduced.

Versatility

• Suitable for Various Lifting Tasks: The QD Double Girder Open Winch Crane is a versatile solution that can handle a wide range of lifting and transportation tasks. Whether it's for lifting heavy equipment, steel coils, or large containers, this crane is capable of handling diverse loads with ease.
• Ability to Handle Multiple Lifting Accessories: One of the key features of the QD overhead winch crane is its compatibility with various lifting accessories. It can be outfitted with magnets, grabs, C-hooks, or custom lifting devices, making it adaptable to different types of loads. This versatility allows businesses to tailor the crane for specific tasks, increasing its usefulness across a variety of applications.

Adaptability

• Customizable for Different Lifting Conditions: The QD Double Girder Crane is highly adaptable and can be customized to suit a wide range of operational conditions. Whether the environment requires handling high-temperature materials, hazardous substances, or operating in heavy-duty conditions, this crane can be equipped with specialized features to meet those demands.
• Built for Challenging Environments: The crane can be tailored to handle extreme conditions, such as high temperatures in steel mills, corrosive environments in chemical plants, or explosion-proof configurations for hazardous areas. Its ability to adapt to various environments makes it a reliable and safe choice for diverse industries.

The QD Double Girder Open Winch Crane is designed for industries that require robust, efficient, and versatile lifting solutions. It offers numerous benefits, including increased productivity, durability, and adaptability, making it an invaluable asset for businesses looking to enhance their material handling operations.

Operations Involving Main and Auxiliary Hooks

Using Main Hook for Heavy Lifting

• Primary Role: The main hook is used for the bulk of the lifting work, typically handling the heavier portion of the load.
• Heavy Lifting Tasks: It is employed for tasks that involve moving large, heavy, or bulky items such as steel beams, machinery, or construction materials.
• Precision Handling: Due to the size and weight of these objects, the main hook is often operated with a focus on precision and stability to ensure safe and controlled lifting.

Using Auxiliary Hook for Lighter Loads

• Support Function: The auxiliary hook is designed to handle lighter loads compared to the main hook, typically up to 50% of the crane's rated capacity.
• Small Components: It is commonly used for smaller, lighter items such as parts, tools, or equipment that require more controlled and precise movement.
• Additional Functions: In many cases, the auxiliary hook is also used to adjust the load's position, assist in load balancing, or act as a support when lifting multiple objects at once.

Simultaneous Use of Main and Auxiliary Hooks

• When Lifting Loads Under 50% of Rated Capacity:Both hooks can be operated together to lift items with combined weights that are below 50% of the crane's maximum rated capacity.This method improves operational efficiency by allowing simultaneous handling of different-sized items, reducing time spent on repositioning or re-rigging.
• When Lifting Loads Above 50% of Rated Capacity:It is generally recommended to use only the main hook for loads exceeding 50% of the rated capacity to maintain balance and prevent overloading.Operating both hooks beyond the 50% limit can lead to an uneven load distribution, which may cause instability, risking crane malfunction or damage.

Safety Measures and Considerations

• Proper Load Distribution: Ensuring the load is evenly distributed between the main and auxiliary hooks when used together is critical to prevent crane tipping or structural damage.
• Operator Training: Operators must be well-trained to understand the load limits of both hooks and the crane's overall capacity. They should be familiar with the operational procedures to ensure safe handling.
• Load Monitoring: Regular monitoring of the load's weight and distribution during operation is essential to avoid exceeding the crane's rated capacity, which could lead to dangerous conditions.
• Safety Protocols: Operators should follow strict safety protocols, including performing routine checks on the crane's mechanical components and ensuring that the load is securely fastened before beginning the lift.

Benefits of Using QD Double Girder Open Winch Cranes with Main & Auxiliary Hooks

Flexibility and Efficiency

• The dual-hook system offers the ability to lift heavy and light loads simultaneously, enhancing workflow and reducing downtime.
• This feature is particularly advantageous in operations requiring precise placement of smaller loads alongside larger items.

Reduced Risk of Overloading

• By utilizing both hooks appropriately, operators can distribute the weight more effectively, minimizing the risk of strain or damage to the crane.
• Proper load distribution also extends the lifespan of the equipment and ensures smoother operations.

Improved Safety

• The specialized design of main and auxiliary hooks provides better control over loads, ensuring stability and reducing the risk of accidents.
• Safety protocols associated with dual-hook operations further enhance operational reliability.

Versatility in Applications

• QD double girder cranes are highly adaptable across industries, such as construction, manufacturing, and logistics.
• The capability to handle a variety of materials, from bulky machinery to smaller components, makes these cranes indispensable for diverse material handling tasks.

These benefits make QD double girder open winch cranes with main and auxiliary hooks a top choice for industries demanding precision, reliability, and adaptability in their lifting solutions.

Safety Considerations and Standards

Compliance with Industry Standards

Conformance to International Safety Regulations: The QD Double Girder Open Winch Crane is built in compliance with the highest industry safety standards to ensure reliable and safe operation. This includes adherence to internationally recognized safety regulations, such as:

• ISO (International Organization for Standardization) standards.
• CE (Conformité Européenne) certification for European markets, ensuring compliance with EU safety requirements.
• ASME (American Society of Mechanical Engineers) standards for safe crane operations in the United States.

Compliance with these standards ensures that the crane meets safety, performance, and environmental requirements, providing operators with peace of mind knowing that the equipment is built to the highest safety and quality benchmarks.

Operator Training and Safety Protocols

Importance of Operator Certification and Training: Proper operator training is crucial for maintaining safety and preventing accidents in crane operations. Operators should undergo comprehensive training to understand how to operate the crane safely, handle heavy loads, and respond to emergency situations. Training programs typically cover:

• Crane operation techniques.
• Load handling and rigging procedures.
• Hazard awareness and emergency response actions.

Additionally, operators should be certified according to industry standards to ensure competence and compliance with safety requirements.

Regular Safety Audits and Inspections: To ensure continuous safe operation, regular safety audits and inspections of the QD crane should be conducted. This includes checking for wear and tear on key components such as the winch system, hoists, and structural integrity. Regular maintenance helps to detect potential issues before they become major problems, ensuring that the crane operates at optimal safety levels.

Advanced Safety Features

• Overload Protection: One of the critical safety features of the QD Double Girder Open Winch Crane is its overload protection system. This system automatically detects if the load exceeds the crane's rated capacity and prevents the crane from lifting the load beyond its safe limit. This feature helps to avoid crane damage and accidents caused by overloading.
• Emergency Stop Buttons: The crane is equipped with emergency stop buttons that can be quickly activated by the operator in case of a safety concern or emergency situation. These buttons cut off power to the crane, halting all operations immediately to prevent further risks.
• Anti-Collision Devices: The QD crane may include anti-collision devices that prevent the crane's trolley, hoist, or hook from colliding with obstacles or other cranes in the area. These systems are particularly useful in busy environments like warehouses or ports, where multiple cranes might operate in close proximity.
• Limit Switches: To further enhance safety, the QD crane comes with limit switches that are set to prevent excessive lifting height or travel. These switches automatically cut off the crane's power once it reaches a preset limit, preventing damage to the crane or other infrastructure. Limit switches ensure that the crane cannot go beyond its designed range, reducing the risk of accidents caused by human error.

The QD Double Girder Open Winch Crane is equipped with advanced safety features and complies with rigorous safety standards. Operator training, regular safety audits, and robust safety mechanisms, such as overload protection, emergency stop systems, and limit switches, ensure that the crane operates safely in various environments. By adhering to these safety protocols, businesses can minimize risks and ensure the safe operation of the crane throughout its lifespan.

Applications and Case Studies

Industrial Applications

The QD Double Girder Open Winch Crane is highly versatile and can be used in a variety of industries, particularly in environments where heavy-duty lifting is required. Some of the key applications include:

• Manufacturing Plants: The QD crane is commonly used in large manufacturing facilities for lifting and moving heavy parts, machinery, and materials during the production process. It helps streamline material handling, increasing efficiency and reducing downtime in operations.
• Warehouses: In warehouses, the QD crane is used to move heavy pallets, raw materials, or finished goods. The crane's adjustable lifting capacities make it suitable for both light and heavy lifting operations, allowing it to handle a wide range of goods.
• Steel Mills: Steel mills require cranes that can handle heavy steel rolls, slabs, and other hot metal products. The QD crane's robust construction and large load capacities make it ideal for such applications. Its heavy-duty design can endure the harsh conditions typically found in steel production environments, such as high temperatures and dust.
• Ports: In port operations, QD cranes are commonly used for unloading and loading containers, bulk materials, and heavy cargo. Their long spans and high lifting heights allow them to handle large containers and heavy port equipment efficiently, reducing the time required for each cargo cycle.
• Other Heavy-Duty Operations: QD cranes are also found in construction sites, power plants, and large infrastructure projects. They are used to lift heavy building materials, machinery, and equipment that require high precision and strength.

Indoor Use:

• Design Considerations: Indoor cranes typically don't require weatherproofing or corrosion-resistant features. They focus more on structural integrity, efficiency in confined spaces, and safety.
• Common Applications: Used for material handling in manufacturing plants, warehouses, and assembly lines.

Outdoor Use:

• Design Considerations: Outdoor cranes need to be built with weatherproof features, such as corrosion-resistant materials and enhanced protection against elements like rain, snow, and extreme temperatures.
• Common Applications: These are often used in construction sites, ports, or large outdoor factories where the crane faces various environmental challenges.

Case Study Example: QD Crane Installation in a Steel Manufacturing Facility

In one notable case, a QD Double Girder Open Winch Crane was installed in a steel manufacturing facility that produced heavy steel components for the construction and automotive industries. The facility needed a crane capable of handling extremely heavy loads (up to 100 tons) with high precision and reliability.

Challenges:

• The steel manufacturing process involved lifting hot metal and heavy steel beams, which required a crane with high load-bearing capacity and the ability to withstand high temperatures.
• The crane needed to operate in a high-speed environment, with minimal downtime between lifts, to keep up with the rapid pace of production.
• The facility had limited space for crane installation, requiring the crane to have a custom span and precise movement control.

Solutions:

• The installation included a customized QD crane with a load capacity of 75/20T to handle the heavy steel beams and rolls. The crane was fitted with high-temperature-resistant components to safely lift hot metal products.
• To meet the space restrictions, the crane was designed with a custom span of 18 meters, ensuring it covered the entire area without interfering with other equipment in the facility.
• Advanced frequency inverter control systems were installed to provide precise movement, enabling the crane to operate efficiently at high speeds while maintaining safety and precision.

Outcomes:

• The QD crane was able to handle the heavy lifting demands of the steel manufacturing facility, improving overall throughput and reducing the time required for material handling.
• The crane's high efficiency and reliability allowed for seamless integration into the production process, reducing downtime and increasing productivity.
• The facility saw a significant reduction in crane-related maintenance costs due to the durability and long lifespan of the QD crane, providing a high return on investment.

The QD Double Girder Open Winch Crane is a flexible and reliable solution for a variety of industries, including manufacturing, warehouses, steel mills, and ports. The crane's ability to handle heavy loads, along with its customization options for specific operational environments, makes it ideal for heavy-duty applications. The case study of a steel manufacturing facility demonstrates how the QD crane can be tailored to meet the unique challenges of different industries, offering improved efficiency, productivity, and reduced maintenance costs.

Customization Options

Tailored Solutions for Specific Needs

The QD Double Girder Open Winch Crane offers various customization options to meet the specific requirements of different industries and operational environments. Whether you need a crane for handling lighter loads or extremely heavy-duty lifting, the QD crane can be designed to provide a solution that aligns with your operational needs.

• Custom Lifting Heights: Lifting heights can be tailored to your facility's specific needs, ensuring that the crane can reach the required positions for lifting materials. Lifting heights typically range from 6 meters to 36 meters, but custom heights can be designed based on the operational space and load handling requirements.
• Custom Spans: The span of the crane can also be customized to ensure it fits within the layout of your facility. The standard spans range from 10.5 meters to 31.5 meters, but customized spans can be designed for facilities with specific spatial constraints or for applications that require extended coverage.
• Custom Load Capacities: The QD crane offers a wide range of load capacities, from light-duty models (3T to 10T) to extra heavy-duty models (up to 500T). Depending on your lifting needs, the crane can be customized with load capacities to handle a variety of materials, from lighter items in warehouses to heavy-duty materials in steel mills and construction sites.

Specialized Accessories: For unique applications, the QD crane can be equipped with specialized lifting accessories, such as:

• Magnets: For handling metal sheets, steel bars, or other magnetic materials.
• Grabs: Ideal for bulk materials like scrap metal, coal, or sand.
• C-hooks: Used for lifting coils of steel, wire, or other rollable materials.
• Other Specialized Hooks and Lifting Tools: Custom lifting attachments can be integrated for a wide range of industrial tasks.

Environmental Adaptations

To meet the demands of different working environments, the QD Double Girder Open Winch Crane can be adapted with specialized features for specific environmental conditions.

• Explosion-Proof Cranes: For hazardous environments, such as chemical plants, oil and gas facilities, or other explosive atmospheres, the crane can be equipped with explosion-proof motors, flameproof enclosures, and ignition-proof electrical systems to ensure safe operation.
• Corrosion-Resistant Cranes: In coastal areas, marine environments, or facilities exposed to harsh chemicals, the crane can be designed with anti-corrosion treatments and materials such as galvanized steel or stainless steel to ensure the crane withstands the corrosive effects of moisture, salt, and chemicals. This improves the crane's durability and extends its lifespan.
• High-Temperature Designs: For environments where cranes are required to lift hot materials, such as steel mills or foundries, the QD crane can be equipped with high-temperature-resistant components. These include heat-resistant wire ropes, motors, and materials that can withstand the high temperatures of molten metal, ensuring safe operation in extreme heat.
• Low-Temperature Designs: In environments with extremely cold temperatures, such as arctic regions or refrigeration warehouses, the crane can be fitted with specialized low-temperature lubricants, heated cabs, and insulated components to ensure smooth operation in freezing conditions.

Key Benefits of Customization:

• Improved Efficiency: Customizing the crane ensures it meets the specific requirements of your application, improving its efficiency and effectiveness in handling materials.
• Enhanced Safety: Environmental adaptations, like explosion-proof or corrosion-resistant features, ensure that the crane operates safely in challenging conditions, reducing risks and improving overall safety.
• Long-Term Reliability: Tailored solutions, such as high-temperature or low-temperature designs, enhance the crane's longevity by ensuring it is built to withstand the specific operational demands of its environment.
• Optimized Performance: Specialized accessories and configurations allow the crane to handle a wider variety of loads and tasks, improving its versatility and performance in diverse applications.

The QD Double Girder Open Winch Crane's customization options make it an ideal solution for a wide range of industries, offering the flexibility to adapt to specific lifting needs, operational environments, and material types. Whether you require special load capacities, custom spans, or environmental adaptations, the QD crane can be tailored to fit your unique requirements, ensuring optimal performance and safety.

Installation: Mounting Options for Open Winch Trolley Cranes

The open winch trolley crane offers flexible installation options depending on the type of facility and the nature of the structural support. Below are the key mounting options:

Concrete Workshops

Mounting Considerations:

• Concrete as a Structural Material: Concrete workshops are a common choice for crane installation. It provides stable support for cranes due to its strength and rigidity. However, for the crane to perform optimally, the concrete slab or foundation must be thick enough to handle both the crane's weight and the load it will lift.
• Foundation Requirements: The foundation must be reinforced and designed to bear heavy loads. Proper foundation work ensures that the crane operates smoothly and safely without risking damage to the workshop or the crane.
• Load Distribution: Proper load distribution and reinforcement of the concrete are critical to avoid cracking or weakening of the structure.

Steel-Structured Workshops

Mounting Considerations:

• Flexibility and Strength: Steel structures are more flexible compared to concrete but can still bear substantial loads effectively. They provide an adaptable framework for the installation of cranes.
• Beam or Framework Mounting: The crane will typically be mounted on the beams or framework of the steel structure, with attachments designed for optimal load-bearing. The steel beams must be inspected to ensure they can handle the dynamic forces and stress exerted during crane operation.
• Stress Management: It is crucial to ensure the steel structure can withstand the stresses caused by crane movements, heavy lifting, and long-term operation. Properly sized support beams and reinforcements should be in place.

Freestanding Columns

Mounting Considerations:

• Independence from Existing Structures: Freestanding columns offer a more flexible installation solution, as they are independent of existing building frameworks. These columns can be installed both indoors and outdoors, allowing for cranes to be used in a wider variety of facilities.
• Design and Strength: Freestanding columns must be carefully designed to ensure they have the necessary strength to support the crane's load and movements. The columns need to be robust and stable to prevent any tipping or structural failure during operation.
• Location Flexibility: These columns can be installed in locations where mounting to a building structure is not feasible or desirable, providing more freedom in facility layout design.

Key Installation Considerations

When planning the installation of the open winch trolley crane, there are several factors to consider:

• Load-Bearing Capacity: The supporting structure, whether it's concrete, steel, or freestanding columns, must be able to bear the weight of both the crane and the loads it will lift. This is the most important factor in ensuring the crane's safety and effectiveness.
• Structural Integrity: Regardless of the type of installation, the integrity of the structure (concrete, steel, or freestanding) must be carefully assessed. Any weakness in the structure could compromise the crane's ability to lift loads safely.
• Customization: Depending on the crane's purpose, the mounting design may need to be customized to meet specific operational requirements (e.g., heavy lifting, high span, or special movement needs).

By addressing these mounting options and considerations, you ensure that the crane will be installed correctly, perform reliably, and maintain safety standards throughout its lifecycle.

Capacity: How to Confirm Required Capacity

The open winch trolley crane is designed for heavy-duty applications with large capacity requirements. When determining the required capacity, several important factors must be considered to ensure safe and efficient operation:

Load Weight + Below-Hook Devices

• Total Load Consideration: The crane's capacity must account for the weight of both the load being lifted and any below-hook devices (e.g., hooks, magnets, grab buckets).
• Why This Matters: To avoid overloading, it's crucial to include the weight of the lifting devices in the total load. For example, if you're using a grab bucket or magnetic chuck, the combined weight of these devices must be included in the crane's lifting capacity.

Below-Hook Devices

The open winch trolley crane can be equipped with different types of below-hook devices, each designed for specific types of materials and handling tasks:

• Hook Crane: A versatile and cost-effective option for general lifting tasks.
• Magnetic Crane: Used to lift ferrous materials with an integrated magnetic lifting system.
• Grab Bucket: Ideal for lifting bulk materials like scrap, coal, or other loose items.
• Beam Spreaders: Distribute load weight evenly, especially for large or irregularly shaped loads.
• C-Hook: Specialized for lifting coils and round materials.

Each of these devices must be compatible with the crane's lifting capacity to ensure safe and efficient load handling.

Span: Planning for Large Spans and Transportation

Large Span Cranes

• Transportation Considerations: When dealing with cranes with large spans, transporting the crane's main girder becomes a logistical challenge. Due to their size and weight, crane girders are often transported in sections, which are then connected by bolts at the assembly site.
• Pre-Planning: Before purchasing a crane with a large span, consider the transportation logistics, including the size of containers, trucks, and the methods required to move the crane components. Proper planning ensures smooth delivery and installation.

Below-Hook Devices: Selection for Large and Heavy Loads

For heavy-duty applications, choosing the right below-hook device is crucial. Consider the following options based on the type of load and handling requirements:

(Double Girder Crane with Open Winch Trolley ) + Below-Hook Devices:

• Hook Crane: Basic lifting option suitable for general purposes.
• Magnetic Crane: Ideal for lifting ferrous materials (steel, scrap).
• Grab Bucket: Suitable for lifting bulk materials like coal, scrap, or sand.
• Beam Spreaders: Useful for distributing weight evenly across large or irregularly shaped loads.
• C-Hook: Specialized for handling coils, rolls, and round materials.

When selecting below-hook devices, ensure that they match the material being lifted, the size of the load, and the operational needs of the crane. The appropriate choice ensures efficiency and safety during heavy-duty lifting operations.

Overhead open winch crane double girder with spreader for steel plate handling

Overhead open winch crane double girder with below hook clamp for metal coil handling

Double girder open winch trolley crane with below hook devices grab bucket for bulk material handling

Tandem Lifting: Using Multiple Cranes for Heavy Loads

In specialized applications where extremely heavy or oversized loads need to be handled, tandem lifting—the use of two or more cranes working together—becomes necessary. This method is commonly used for handling large, complex, or particularly cumbersome materials that exceed the lifting capacity of a single crane.

Key Considerations: Synchronization

• Even Load Distribution: To prevent damage to the load or crane, it's critical that the cranes are synchronized to lift the load evenly. Proper synchronization ensures that the load is balanced and reduces the risk of tipping or instability during the lift.
• Coordinated Movement: Cranes must operate in unison, with careful control of lifting speeds, angles, and positions to ensure smooth handling.

Safety Measures

• Communication: Effective communication between crane operators is vital to ensure that movements are coordinated and that the load is properly managed throughout the lift.
• Load Monitoring Systems: Using advanced load monitoring systems ensures that the weight distribution is being correctly managed and that neither crane is overloaded.
• Safety Protocols: Specific safety protocols must be followed, including the use of rigging, safety checks, and emergency procedures, to ensure the operation is conducted with minimal risk.

Custom Solutions

• Customized Cranes: In many cases, customized cranes or lifting systems are necessary for tandem lifting operations, particularly when handling exceptionally large or unique loads. This may include specialized lifting attachments or reinforced crane structures to handle the increased load demands.

The QD Double Girder Open Winch Crane stands out as a reliable, versatile, and high-performance solution for a wide range of heavy-duty lifting applications. Designed with flexibility in mind, it offers exceptional load capacities, customizable features, and advanced safety systems, making it an ideal choice for industries requiring robust material handling equipment.

Whether you're looking for a crane to streamline operations in a warehouse, steel mill, or port, the QD Double Girder Open Winch Crane offers an unmatched combination of strength, adaptability, and performance. Its proven reliability, customizable features, and commitment to safety make it a top choice for industries requiring heavy-duty lifting equipment. By investing in a QD crane, businesses can ensure enhanced productivity, minimal downtime, and long-term operational efficiency.

Purchasing and Support

How to Purchase

Choosing the Right Crane Model:

• When purchasing a QD Double Girder Open Winch Crane, it's important to assess your operational needs, including load capacity, lifting height, span, and working environment. Factors like the type of materials to be lifted, the frequency of use, and any environmental challenges (e.g., high temperatures, corrosive environments) should also be considered.
• Consulting with a crane supplier or manufacturer will help in selecting a crane model that aligns with your specific requirements. Customization options, such as specialized lifting accessories (magnets, grabs, etc.), can also be discussed.
• Be sure to request a detailed quote and ensure that the crane is compliant with industry standards and local regulations.

Contacting Suppliers and Manufacturers:

• Reach out to reputable crane manufacturers or authorized distributors for more information on product specifications, customization options, and pricing.
• Many suppliers provide online contact forms, phone numbers, or email addresses for inquiries.
• Check the manufacturer's reputation, customer reviews, and past case studies to ensure you're choosing a reliable supplier with a track record of delivering high-quality cranes.

After-Sales Support

Warranty Information:

• Most QD Double Girder Open Winch Cranes come with a standard warranty that covers manufacturing defects and major components for a period of 1 to 2 years. However, warranty terms can vary by manufacturer, so it's important to clarify the details with the supplier before purchase.
• Extended warranties or service packages may also be available for additional peace of mind.

Technical Support and Servicing Options:

• Suppliers typically offer technical support to assist with installation, troubleshooting, and ongoing operation. This support is often available through phone, email, or online platforms.
• Some manufacturers offer on-site installation services, ensuring that your crane is set up and calibrated properly for optimal performance.
• Regular maintenance checks and safety audits can be arranged with the supplier to keep the crane in top working condition.

Spare Parts and Maintenance Services:

• To keep your QD Double Girder Open Winch Crane running smoothly, suppliers provide access to original spare parts, such as hoists, trolley motors, and control systems.
• Suppliers typically maintain a catalog of spare parts available for immediate delivery. It's recommended to keep a stock of critical components on hand for emergency repairs.
• Maintenance services, including periodic inspections, lubrication, and system checks, can be scheduled to prolong the lifespan of the crane and reduce unplanned downtime.

By choosing a supplier that offers comprehensive after-sales support, including warranty coverage, technical assistance, and spare parts availability, you can ensure that your investment in a QD Double Girder Open Winch Crane continues to deliver reliable performance for years to come.