What Are Overhead Cranes? All Overhead Cranes You Need to Know
Overhead crane for sale to South Africa,Malaysia, United Arab Emirates ,Singapore ,Canada ,Saudi Arabia ,Philippines,Pakistan, Australia, United States ,Thailand, Indonesia, Brazil, etc. Win the world with good crane quality to improve your production safety and efficiency, make the best of your crane investments.
With high quality, cost-effective price, various types of our cranes have won clients globally and been installed more than 96 countries and districts around world, such as, South Africa,Malaysia, United Arab Emirates ,Singapore ,Canada ,Saudi Arabia ,Philippines,Pakistan, Australia, United States ,Thailand, Indonesia, Brazil, etc. Win the world with good crane quality to improve your production safety and efficiency, make the best of your crane investments.
What is an electric overhead crane?
Overhead cranes are used to lift and move loads from one location to another in an efficient and safe motion. Ususally, the overhead cranes are consisted of one/ two crane girder bridge, two crane runways, and crane hoist trolley which is suspened on the under flange of crane bridge or rides on along the runways on the bridge for loads horizontally and vertically.
Overhead Crane Benifits & Applications- Part 1 of Series of What's an Overhead Crane?
Overview of overhead crane
- Concept of overhead cranes :This crane is Horizontal placed in workshop, storage, on top of steel support. It used to lift object or machine.
- Working Application of overhead cranes :Workshop, factory, warehouse, store yard for loads loading& unloading
- Loading capacity of overhead cranes :Rated capacity from 1 ton to 550 ton.
- Advantage of overhead cranes : High safety and efficiency which can be customized with with various crane configurations and designs with Light duty, Medium duty and Heavy duty.
- Disadvantage of overhead cranes Supporting structure is needed by overhead crane in working area, cost is higher, working area is limited.
- Structure of overhead cranes :Overhead cranes are travelling on rail which are placed on concrete or steel structure.
Main crane specifications of general use overhead cranes
The main overhead crane specifications andparameters of the general use overhead cranes in terms of crane capacity, span, crane services duty and crane applications are presented for your reference. As for the process crane, please feel free to contact us directly to get your customized overhead cranes.
Main crane specifications and parameters of general use overhead cranes :
- Lifting capacity of overhead cranes : 5 ton-550 ton, including 5 ton, 10 ton, 16/3.2 ton, 20/5 ton, 32/5 ton, 50/10 ton, 75/20 ton, 100/20 ton, 125/32 ton, 150/30 ton, 160/32 ton, 200/50 ton, 250/50 ton, 300 / 75 ton, 350/80 ton, 400/80 ton, 450/100 ton, 500/100 ton, 550/100 ton, etc.
- Span of electric overhead cranes：10.5m-31.5meters,such as, 10.5m, 13.5m, 16.5m, 19.5m, 22.5m, 25.5m, 28.5m, 31.5m,
- Lifting height of electric overhead cranes：1m-30m,
- Working duty of electric overhead cranes: (A3, A4, A5, A6).
- Working ambient -25℃～+40℃, moisture ≤85%, altitude below 1000 meters,
- Power supply: 380V, 50Hz, 3phases, (Adjustable according to customer's different requirement).
Note:1. A5-Applied in working with not so much frequently, such as in the workshops of general machining and assembly or for maintaince .A6 -Applied in much more frequency work, such as auxiliary hoisting crane in metallurgy and casting workshop. A7-Applied in busy working and the hoisting of melted hot metal.
Non-standardoverhead cranes with process overhead crane designs are available for your specific applications.
Crane Basic Concepts and Terms
1. Crane lifting capacity
- Rated capacity of overhead crane :The rated capacity of crane includes the weight of the cargoes and the weight of the lifting devices and load-handling devices like crane hooks, crane grab buckets, electric magnetics, and equalizing beams, and many others, etc.
- Effective lifting capacity: The net maximum weight and capacity of the loads the overhead crane is required to lift.
2. Span of overhead crane
- Span of overhead crane:The horizontal distance between the two rail centers /crane rails, on which the main girders are supported and moves along ,is referred to as the cane span of an overhead crane.
3. Lifting height of overhead crane
- Lifting height or hook height: The vertical distance between the crane hook and the floor. The crane hook height is determined by the crane runway height which is subject to the clear inside height of the building or the available space of the workshop. .
4. Crane service duty
The crane services duty or working class of an overhead travelliing crane is an important consideration when selecting a overhead crane for your needs. The average load intensity and loading cycles are used to classify crane working classes. Due to differences in average load intensity and loading cycles, two travelling cranes with the same lifting capacity, span, and size may have distinct working classes in terms of working class and the crane components and parts may experience various short term and long term loading conditions.
Different crane service classes exist according to various criteria. The Crane Manufacturers Association of America (CMAA) divides overhead traveling cranes into six categories based on typical load intensities and cycle count. While the International Organization for Standardization (ISO), the European Federation Standard (FEM), and the Hoist Manufacturer Institute (HMI) classify all crane hoists based on higher requirements such as the number of starts and the maximum running time per hour.（More information please check the Crane Service Duty Tab or please feel free to contact us. ）
5. Speed of overhead crane
- Lifting speed: In typical crane operation, the velocity at which loads within the rated lifting capacity travel vertically and steadily.
- Crane speed：Crane speed is the rate at which loads within a crane's rated lifting capacity move horizontally or along a runway.
- Trolley speed: In typical crane operation, the pace at which the trolley travels on the horizontal tracks with loads within the rated lifting capacity.
- Note: Whether a single speed, double speed, or frequency drive is required should be indicated.
6. Wheel pressure
- The wheel pressure refers to the pressure when the trolley moves to the limiting position on one side with weights within the crane's rated lifting capacity on electric overhead cranes.
- Note: Crane wheel pressure is proportional to the bearing capacity of the building's steel frame.
Main parts & components of overhead cranes
The lifting system, controlling system, crane frame, and among other things, are the primary spare parts of an overhead traveling crane. Parts and crane components for overhead traveling cranes include the main crane girder, end girder trucks or end carriages, electrical resistor, trolley, trolley frame, and hook blocking frame,etc.
For single girder overhead cranes, double girder overhead cranes, top running overhead cranes, underhung overhead cranes, and processed industrial cranes, various types of overhead crane parts and components are available. On the basis of your spare part drawing, we deliver tailored overhead cranes parts and processed overhead cranes components. For further information, please contact us.
What's An Overhead Crane ? Part 1: Overhead Crane Benifits & Application - Overhead Crane Basics
Crane parts name: Main girder/ bridge crane
One of the most significant crane sections is the main overhead crane girder or overhead crane beam design, which supports the trolley or hoist. Crane main girders are categorised as truss girders, box girders, single girders, and double girders, and many other types of structures. Single girder, double girder, triple girder, box girder, truss grider, and other girder designs are available. Please do not hesitate to contact us if you require crane girder design.
Single girder : A single crane girder or crane beam that runs above or below the runway/end carriages /end trucks.
Double girder : Consists of 2 bridge beams or girders on top of the crane runway/end trucks/ end carriages.
Top running crane girder: Eelectric overhead crane or shorted as EOT crane is mounted to the top of the runways.
Under running (under hung)crane girder : Electric overhead crane with the end trucks attached and supported to the flanges on the bottom of the runway beams.
Crane parts name:End beam/ end carriage
The main girder, which supports the trolley or hoist, is one of the most important crane parts. Truss girders, box girders, single girders, and double girders, as well as many other types of constructions, are all examples of crane main girders. There are designs for single girders, double girders, triple girders, box girders, truss griders, and process girders for your applications. If you require crane girder design, please contact us.
Single girder crane end carriage - Top running overhead crane design
Double girder crane end carriages - Top running overhead crane design
Double girdder overhead crane end carriage - Under hung overhead crane design
Single girder overhead crane end carriage - Underrunning overhead crane design
Travelling crane hoists
Crane winch
Crane control
The driver's cabin of overhead cranes and gantry cranes can be different depending on overhead crane designs, and they can also be positioned at different positions of overhead cranes and gantry cranes. Crane operator or driver's cabin, a buffer, a stairway, and a handrail for overhead traveling cranes and gantry cranes are aslo available.
Wireless remote crane control for overhead crane
Main types of overhead cranes
Overhead travelling bridge cranes are available with capacity of 550 ton with simple single girder overhead travelling bridge overhead crane designs for general usage as well as custom built double girder overhead travelling bridge cranes for all industries.overhead crane can be provided in multiple overhead crane configurations. Typical design includes single girder top running overhead crane, single girder underrunning overhead crane, double girder top running overhead crane and double girder underrunning overhead crane. Contact us to get your process designed overhead cranes.
What's an overhead crane? Part 3:Types of Overhead Cranes: Top & Under Running, Single & Double Girder Overhead Crane
Usually the main overhead cranes types are as the following:
Single Girder Overhead Travelling Bridge Crane
- Chinese Type Robust & Economial Single Girder Hoist Overhead Crane
- European Standard Small & Light-weighted Hoist Single Girder Overhead Crane
- Suspension Crane, Ceiling-mounted Single Girder Overhead Crane
- European Type Underslung Crane
- Explosion proof type Single Girder overhead crane
- Low Headroom crane type Single Girder Overhead Crane
Double Girder Overhead Travelling Bridge Crane
- Hoist Trolley Double Girder Overhead Crane
- Winch trolley Double Girder Overhead Crane
- European Double Girder Travelling Bridge Crane
- Explosion Proof Double Girder Travelling Bridge Crane
By lifting devices
You will receive multiple overhead cranes quotations from crane builders after making an overhead cranes inquiry. How can you find the most affordable crane estimates among them? It is necessary to compare the numerous overhead cranes quotes.
Double girder overhead crane installation
Single girder overhead crane installation
Double girder gantry crane installation
Single girder gantry crane installation
Single leg gantry crane installation
Floor jib crane installation
Wall jib crane installation
Suspension crane installation
On selecting the right overhead crane, there are many factors that need to be considered, such as, the following: What is the load being lifted? Will this be operated indoors or outdoors? What is the dimensions of the building? What's the crane the span? And what's more, how often will it be in use? Our overhead crane engineering can provide a complete package of crane services including the footing design, crane runway design and travelfling overhead crane design. Our overhead crane engineers can provide the expertise to help you choose the right lifting crane equipment for your specific application.
Our overhead crane equipment is widely used in many industries including steel fabrication, coil handling, construction, equipment maintainence, power,railroad construction as well as specialized hazardous or specialized environments such as medical, gas, mining, semi-conductor, biomass and food processing,etc. We can provide clean roomhoist crane as well as explosion proof , and spark resistant,as per your the crane specifications required.
Single Girder overhead cranes
Single girder overhead crane video
Single girder overhead cranes, which are made out of a single bridge girder beam attached to the runways, are a tried-and-true solution to a variety of material handling problems. When used correctly, these overhead cranes may provide years of service. They are very adjustable and can be equipped with manual chain hoists, electric chain hoists, or electric wire rope hoists for maximum versatility in your work area. Optional features of the single girder overhead crane including Radio remote control, independent traveling pushbutton stations, anti-collision systems, bridge and trolley travel limitations, variable frequency control, bridge lights and warning bells or horn, and weight readout and many others.
European Standard Suspension Single Girder Overhead Crane
Lifting capacity of single girder overhead crane: 1ton,3 ton, 5 ton to 10 ton
Span ofsingle girder overhead crane: 3-15 m
Lifting height of single girder overhead crane: 3-100 m
Ask for single girder overhead crane price now.
Suspension Single Girder Overhead Crane Chinese type
Lifting Capacity of Single Girder Overhead Crane: 0.5ton, 3 ton, 5 ton to 10 ton
Span of Single Girder Overhead Crane: 3m to 31.5m
Working Class of Overhead Crane: A3 to A5
Ask for single girder overhead crane price now.
FEM / DIN Top running Single Girder Overhead Crane
Lifting Capacity of Single Girder Overhead Crane: 3.2ton, 3 ton, 5 ton 10 ton ton 16ton
Span of Single Girder Overhead Crane: 7.5m to 28.5m
Working Class of Overhead Crane: A5
Ask for single girder overhead crane price now.
Chinese Style Top Running Single Girder Overhead Crane
Lifting Capacity of Single Girder Overhead Crane: 1ton, 3 ton, 5 ton,10 ton up to 20 ton
Span Length of Single Girder Overhead Crane: 7.5m-28.5m
Working Class of Overhead Crane: A3, A4
Ask for single girder overhead crane price now.
Explosion Proof Single Girder Overhead Crane
Lifting Capacity of Single Girder Crane: 1ton, 3 ton, 5 ton,10 ton up to 20 ton
Span of Single Girder Overhead Crane: 7.5m to 28.5m
Working Class of Overhead Crane: A3, A4
Ask for single girder overhead crane price now.
Partial Hung Low Headroom Single Girder Overhead Crane
Lifting Capacity of Single Girder Overhead Crane: 1ton, 3 ton, 5 ton,10 ton up to32 ton
Span of Single Girder Overhead Crane: 7.5m to 22.5m
Working Class of Overhead Crane: A3, A4
Ask for single girder overhead crane price now.
Low headroom Hoist Single Girder Overhead Crane
Lifting Capacity of Single Girder Overhead Crane: 1ton, 3 ton, 5 ton,10 ton up to32 ton
Span of Single Girder Overhead Crane: 7.5m to 22.5m
Working Class of Overhead Crane: A3, A4
Ask for single girder overhead crane price now.
Ladle handling Single Girder Overhead Crane
Lifting Capacity of Single Girder Overhead Crane: 1ton, 3 ton, 5 ton, 10t
Lifting Height of Single Girder Overhead Crane: 6~18m
Working Class of Overhead Crane: M5
Ask for single girder overhead crane price now.
Double girder overhead crane
Double girder overhead crane video
Double girder bridge travelling cranes have two bridge beams attached to the runways and are usually equipped with top-running electric wire rope trolley hoists, but depending on the application, they can also be equipped with top-running electric chain hoists. Double girder top running overhead cranes can be equipped with underrunning trolley hoists, though this is not typical. 5-ton, 10 ton, 15 ton, 20 ton, 25 ton, 30 ton, 50 ton, 75 ton, and 100-ton overhead crane are the most popular product in our factory.
Chinese style double girder hoist crane
Overhead electric winch crane is China traditional heavy duty double girder overhead crane equipped winch trolley,Robust & Sturdy, Affordable industrial overhead winch cranes.
Chinese style double girder open winch crane
5 ton- 63 ton double girder overhead electric crane with rope hoist trolley / chain hoist trolley, competitive hoist trolley crane system, cheaper hoist trolley crane price, good electric overhead crane solution.
European style double girder open winch crane
European standard double girder overhead crane with open winch trolley, a heavy duty winch crane up to 320 ton, wide specifications hook cranes for wide application. Get FEM / DIN open winch travelling bridge crane now!
European style double girder hoist trolley crane
Advanced double girder overhead crane based on European DIN/FEM Standard with 5 ton-80 ton electric wire rope hoist trolley for hoisting industrial materials - European advanced wire rope hoist cranes!
Ladle crane: 5 ton -74 ton steel mill ladle crane & 5 ton up 320 ton ladle crane
Ladle cranes for 5 ton -320 ton ladle or liquid metal lifting, heavy duty ladle crane for steel mill, foundry, furnace, and casting factory. Good priced ladle crane, charging crane, casting crane & foundry crane !
Electromagnetic overhead cranes & Electromagnets
Electromagnetic overhead cranes with types of electromagnetic chucks & magnetic carrier beams for steel scraps, billet, slab,wire, coil, pipe, plate, etc., handling with efficiency and safety.
Rotary overhead crane with electro- magnet beam spreader
Magnetic crane is a double girder overhead crane with rotary overhead crane design & electromagnet beam spreader, lifting long & larger steels, safe & efficient rotary overhead crane.
Grab crane- Overhead crane with crane grab bucket
5 ton 10 ton 16 ton 20 ton Grab Overhead Cranes with orange peeler grabs or clamshell grab buckets for scattered material handling in power station, steel mill, port, cement plant,storage & waste recycling station, etc
How to select overhead cranes builder
What matters is that you work with the correct crane builder for your overhead cranes project. You can compare overhead cranes manufacturers based on a variety of factors, including referrals, industry events or trade fairs, and internet research.
What's an overhead crane? Part 4:How to Select the Right Overhead Crane for Your Application?
Ask for suggestions
Visit a factory or plant that has overhead cranes installed and seek advice. Find out if your present customers, vendors, or suppliers, as well as all of your contacts, use overhead crane. equipment. Assuming that's the case, if they don't mind, ask for a referral for crane builders. It would be preferable if they could introduce you to an overhead cranes builder with whom they are happy to work.
Attend industry trade show or events
At trade exhibits, you can learn a lot about overhead cranes manufacturers and suppliers, which are companies that specialize in the development and production of overhead cranes.
Checking the exhibitor list and contacting the crane maker you're interested in and paying a quick visit to their booth or scheduling a factory visit after the show will save you a lot of time.
Study crane builders on Google
Use terms like "overhead cranes manufactures or company Pakistan," "overhead cranes supplier Bangladesh," or "overhead cranes company in Middle East" to find the crane manufacturers you're looking for.
Keep overhead cranes price competitive
Crane builder from China
When comparing overhead bids, the price of overhead traveling cranes is critical. What factors influence the pricing of overhead traveling cranes? It primarily consists of the following:
- The order's crane quantity - How many overhead traveling cranes are required for your project?
- Modle/ Types of cranes - Overhead traveling cranes come in a variety of shapes and sizes.There are several different types of overhead traveling cranes to choose from. Each variety has its own characteristics that may influence the price.
- Lifting capacity: The lifting capacity of overhead cranes is determined by three factors: 1) the weight of the loads to be hoisted at a lift, 2) the weight of the associated riggings or below-the-hook lifters, and 3) additional future usage or capability considerations.
- Crane span is the horizontal distance between the runway rails from center to center.
- Lift height refers to how high the loads must be elevated above the ground.
- Crane duty class/number of lifts per hour: In general, higher service class overhead traveling cranes will necessitate additional engineering and specialized crane parts and components to meet complex lifting challenges.
- Hook approach: This refers to how close a crane hook can reach to the end of a bridge or runway, as well as considerations for both the trolley hook and crane/runway hook approaches.
- Will the overhead crane be electrically driven, hand-operated, or pneumatically powered?
- Applicaiton conditions-The cost of an overhead cranes is affected by the operating environment, such as, the harsh, obstructed, or dangerous environment needs more durable cranes with higher price.
- Operation speed - The more quickly the crane must function, the more expensive it will be to design, source, and arrange the different crane components.
- Crane controls: It will be necessary to consider how the operator is loading or unloading material. There three selections: a radio command Is it better to have a pendant or a Crane cab.
- Crane running - Where is the Crane runway? Is it a runway for a new building? Or a runway built inside an existing structure?
The pricing of overhead cranes is influenced by a number of factors. Learn more please feel free to contact us.
Other items needed to compared
- Project specifications- For an overhead crane project of this scale, it's critical that the crane manufacturer quotes the crane using the same specifications and data.
- Warranty- The crane maker's warranty terms on workmanship, components, and materials should be thoroughly understood.
- Incidentals-Any additional charges that are not included in the quote, such as steel price fluctuations, taxes, freight charges, and other expenses.
- Ensure that the crane builder provides a clear timeframe for the crane project, including the installation of overhead cranes if necessary.
After comparing overhead cranes quotes, you'll know which overhead cranes manufacturers are the best fit for you. When it comes to choosing an overhead cranes service provider, please wait until you have received an overhead cranes quote from us, one of the top crane makers who has earned client satisfaction by a down-to-earth attitude and high quality.
Overhead Crane Frequently Asked Overhead Crane Questions and Answers
Overhead Crane Question1: Why does weuse PLC on overhead crane?
The abbreviation PLC stands for programmable logic controller. Power, CPU, memory, input/output interface circuit, function module, and communication module make up its basic construction. PLC can vary the shape of the relay-contacts control and make it customizable for the speed of each file, acceleration time, and braking time of electric motors based on real-world situations. Calculating, controlling, programming, communicating, diagnosing, and processing are all PLC functions.
Our company uses PLC in overhead crane systems because it has several advantages and can make heavy duty overhead cranes safer and more convenient. The benefits are as follows. 1. Easy to use and understand program 2. High functionality at a low cost 3. Comprehensive hardware, ease of use for customers, and high flexibility 4. High anti-interference capability and high reliability 5. Design, implementation, and testing of the system require little effort. 6. Maintenance requires little effort and is simple.
Overhead Crane Question2: What's the system of hoist overhead crane?
Answer: An electric hoist overhead crane primarily consists of a lifting mechanism, a traveling mechanism (both trolley and overhead crane), and a rotation mechanism. The first is the hoisting mechanism, which is a type of electric hoist. It is made up of a driving device (an electric motor), a braking device (a brake), a transmission device (a reducer), and a fetching spinning device (a pulley) (hook, grab, magnetic disc, and wire rope, chain, trolley, drum, sprocket and rope-guiding device).
The second type of horizontal travel mechanism is the trolley travel mechanism. Electric motor, braking device (brake), transmission device (reducer), and trolley wheel device make up a traveling trolley. The third type of travel mechanism is the vertical travel mechanism, which is used by overhead cranes. The driving mechanism (electric motor), braking device (brake), transmission device (reducer), and overhead crane wheel device are all part of this mechanism. Electric hoist overhead cranes have the advantage of having a three-in-one driving device. It integrates the driving (electric motor), braking (brake), and transmission (reducer) devices.
Overhead Crane Question3 : How do bridge overhead cranes supply power ?
The first method is to use a flexible cable. The hoisting overhead crane's power is supplied by an AC power supply. The overhead crane and the power cannot be connected in a fixed manner since the overhead crane's work is moveable. The flexible cable is typically used to supply power. Flexible cable can stretch and roll along the track as the overhead crane system and trolley move along it. The second method is to use a sliding wire and an electric brush. Through three main slide wires and an electric brush, three phase AC power is delivered to the cabin's protection box, and then through wire way to the overhead crane system's motor, electromagnet, and AC control station.
Overhead Crane Question4 : What to do when the overhead crane trolley line is out of power ?
The reason for this is that the electric brush climbs into the conductor, the brush wears out quickly, the conductor junction is not smooth, only one connector is utilized, and the rail joint loosens. Check whether the brush is severely worn, replace the electric brush, adjust the connecting joint, and use a double-brush connector.
Overhead Crane Question5: What to do when the guiding rail is deformation, the collector doesn't work?
The main cause is that the temperature is too high, and the space between lifting racks is either too long or too loose. Partially adopting anti-heat plate, adding sun screen outdoors, increasing the number of trolley line lifting racks, correcting the conductor, and tightening the screws are all beneficial.
Overhead Crane Question6 : What to do when the overhead crane trolley line shakes seriously?
The cause for this is that the fork can't absorb the transmission error, the guiding-rail isn't straight, and the lifting rack is sloppy. The correct procedure is to modify the tractor, adjust the guiding-rail straightness, and tighten the screw mounts.
Overhead Crane Question7: What are the factors which influences overhead crane working speed?
Lifting speed, trolley travel speed, and overhead crane travel speed are all factors in overhead crane working speed. Many factors determine how quickly you work.
For starters, it has something to do with weight. Small and medium-lifting overhead cranes can operate at a high speed to increase efficiency, whereas heavy-lifting overhead cranes should operate at a low speed to reduce driving power and improve travel stability and safety.
Working speed is also influenced by the working class and the demands of the job. Working mechanisms with low class and adjusting purposes can adopt low speed, whereas overhead cranes with high class, regular use, and high efficiency can adopt fast speed. Low-speed options are available for overhead cranes that are only used for equipment installation and maintenance.
It can also be set to double speed (high and low), dead speed, or changeable speed, depending on the situation. Furthermore, working speed is linked to the working environment. The overhead crane is appropriate for high speed since it has a long travel distance and a high lifting height. High speed cannot be achieved with an overhead crane with a limited travel distance. With the advancement of industry, the overhead crane that does a lot of transportation work has a tendency to operate at a fast pace.
The installation and maintenance overhead crane has an adjustable speed. Some overhead cranes with special functions, such as the overhead crane for quench, should have a fast-down device; for overhead cranes with high lifting heights, the lifting speed should be improved, with low speed for heavy material, high speed for no-load, or high down-speed to increase efficiency.
Overhead Crane Question8: What to do when the brake can't stop the braking-wheel?
The leverage hinge is stuck, the braking-wheel and friction plate are contaminated with oil, the electromagnetic core does not have enough travel distance, the braking-wheel and friction wheel are severely worn, the main spring is loose and damaged, and the locking-nut and tie rod are loose. Adjust the brake, replace the friction plate, replace the main spring and locking-nut, tighten the locking-nut, and inspect the impeller driving mechanism after lubrication and excluding stuck faults.
Overhead Crane Question9: What to do when the brake is too hot, the friction plate wears fast.
Answer: The braking-shoe is loose, and it does not completely break away from the braking-wheel, causing friction. The distance between two braking-shoes and braking-wheels isn't even, or it's too little. The short-distance brake's helper spring wears out or bends, and the braking-wheel surface is extremely harsh. The distance should be adjusted, the assistant-spring should be changed or maintained, and the braking-wheel surface should be processed. When the reducer and gears mesh, the machine cover rattles due to uneven tapping. Simply shift gears.
Overhead Crane Question10: Why overhead crane system need buffers?
Answer: Spring buffers, rubber buffers, and hydraulic buffers are the most commonly utilized buffers. The spring buffer is dependable and easy to maintain. Rubber buffer has a straightforward design. The hydraulic buffer can absorb a lot of energy and doesn't bounce back. Due to inertia, the overhead crane system moving in the end or the trolley on the main girder will hit the stopper set in the position when the limiting stopper of traveling extreme position or brake is in problem. However, an overhead crane buffer can absorb the overhead crane system's or trolley's travel energy and lessen impulsion.Buffers should be placed between overhead cranes on the same track or between twin trolleys on the same girder.
Overhead Crane Question11: What is the anti-collision device on overhead cranes?
Answer: Lasers, ultrasonics, infrareds, and electromagnetic are all based on the premise that light or radio waves travel, reflect, and can be used to measure distance. When two overhead cranes reach a pointed position, the overhead crane mechanism sounds an alarm and issues a stop instruction all at once.
Overhead Crane Question12: How does anti-deflection device protect overhead cranes?
Wire-rope, cam, chain wheel, skew indicator, and other automatic adjusting devices are included. When the bridge frame deflects to a certain degree, it can inform the operator and automatically adjust itself. When the overhead crane frame deflects significantly, the power is automatically cut, the traveling mechanism is stopped, and the crane's safety is protected.
Overhead Crane Question13: What is the function of safety hook of overhead crane?
A safe hook is an essential component of a bridge overhead crane. What are the different types and functions of safe hooks?
For single-girder overhead cranes, the safety hook is most commonly employed. Lifting material from one side of the main girder causes the material to tilt against the trolley; anti-tilting torque from a vertical gauge wheel or a horizontal gauge wheel can maintain the trolley balanced. However, in the event of a cyclone, an outside collision, a damaged wheel, or maintenance and repair, this method cannot guarantee safety. As a result, a safe hook should be put on this overhead crane. Safe hooks have varying structures depending on whether they are attached to a trolley or a wheel.
Overhead Crane Question14: How to inspect the safe hook of overhead crane?
The inspection of the overhead crane safe hook is required. There is no caught between the safe hook and rail or the main girder web while the trolley goes along the main girder. There is no drowsiness on the web. The distance between the safe hook and the rail should be within the specified parameters. The bolt is tight and in the proper location; the weld is secure; and the safe hook is free of damage, such as abnormal deformation. The most basic way is function check, which consists of a visual inspection and a test operation.
Overhead Crane Question15: how to lubricate the large and heavy overhead crane?
Answer: Large overhead cranes require lubrication. There are several reasons to lubricate your overhead crane. It can reduce wear, reduce friction, lower overhead crane temperature, prevent corrosion, and produce a seal. These functions are interdependent and influence one another. If friction cannot be regulated, wear cannot be decreased, resulting in excessive friction heat and high temperatures, damaging the friction surface lubrication and lubricating substance. What is the best way to lube your overhead crane?
Shafts, holes, and friction surfaces with relative movement should all be lubricated on a regular basis. The lubrication points fluctuate depending on the working conditions. Every lubrication should fulfill the criteria and requirements of the instructions for various types of overhead cranes and different lubricating parts. Regular lubrication and inspection of overhead cranes is recommended. Lubricating using certified oil can keep the overhead crane in good working order and prevent premature wear. Bad oil can cause a mechanical accident, damage equipment, and have an impact on safe production. In the maintenance of overhead cranes, lubrication is crucial.
Overhead Crane Question16:How to select overhead crane for your application?
Answer:An overhead crane, often known as a bridge crane, is utilized to increase production and warehouse productivity. How do you choose the best overhead crane for your project? Here are some questions to consider while choosing an overhead crane:
- Has the overhead crane manufacturer or provider been in business for a long time?
- Do they have previous experience supplying overhead cranes to competitors?
- What kinds of overhead cranes can they provide?
- How do they manufacture overhead cranes and what is their quality control procedure?
- Do they have an ISO certificate for their overhead crane? See our certifications for overhead cranes.
- Include details such as lifting capacity, size, and span in your overhead crane specs.
- Will your overhead crane be used once a week, once or twice a day, or on a regular basis?
- What will the overhead crane's movement be like? (Do you like going up or down, left or right, forward or back?)
Overhead Crane Question17: Why to choose ouroverhead crane?
Answer: In order to win the international overhead crane market, our exceeds itself in providing superior quality overhead cranes and overhead crane services. our is dedicated itself to win the smiles of you, our valuable customers around the world through its effort in the following aspects:
- Customized overhead crane perfectly fits your application environment. Taking your building and working conditions and your lifting requirements into full consideration, the engineering team of our will work out an overhead crane which will adapt your capability ideally.
- Types of overhead cranes with various tonnages are available which can meet your lifting requirements.
If you have any questions or problems, please feel free to contact us or leave a message below!
Article by Bella ，who has been in the hoist and crane field since 2016. Bella provides overhead crane & gantry crane consultation services for clients who need a customized overhead travelling crane solution.Contact her to get free consultation.
