Cantilever Underhung Crane 1 Ton S4.5m H18m VFD
Cantilever underhung crane 1 ton, 4.5m span, 0.3m left/right cantilever, 18m lift, A3 duty, VFD long travel 20/10 m/min. Cantilever underslung crane / underhung bridge crane with CDH hoist for high-lift narrow bays. 7.5 kN wheel load, I 20m-45c rail, Ø130
Crane Manufacturer: Yuantai Cranes – 30+ Years Professional Crane Manufacturer from China
Category: Underhung Bridge Crane Drawing
Tags: UnderhungBridgeCraneDrawing,Underhungcrane
Overview:
Engineered and manufactured by Yuantai Cranes, this Cantilever Underhung Crane 1 Ton - S4.5m - H18m A3 with VFD Long Travel drawing package details a specialized cantilever underhung crane (Drawing No: LX1-4.5m A3) — also known as a cantilever underslung crane or underhung bridge crane with cantilever — designed for high-lift, narrow-bay positioning with a wider 4.5m span.
Project & Technical Overview
This project supplies one 1 ton cantilever underhung crane — a cantilever underslung crane or underhung bridge crane with cantilever — designed for high-lift, narrow-bay positioning with a wider 4.5m span. The crane has a 0.3m cantilever on each side and uses VFD-controlled long travel at 20/10 m/min for smooth, precise positioning.
- Equipment: Cantilever underhung single girder crane (cantilever underslung crane) — 1 unit
- Drawing No.: LX1-4.5m A3
- Capacity: 1 t
- Span: 4.5 m (4500 ± 2.5 mm)
- Left Cantilever: 0.3 m
- Right Cantilever: 0.3 m
- Lifting Height: 18 m
- Hoist Type: CDH
- Hoist Lifting Speed: 8 m/min
- Lifting Motor: 1.5 kW
- Total Height: 767 mm
- Total Width: 1000 mm
- Long Travel: VFD 20/10 m/min
- Crane Travel Motor: SZW-050, 0.4 kW × 2, 1400 r/min
- Buffer Stroke: 30 mm
- Rail Type: I 20m-45c
- Wheel Diameter: Ø130 mm
- Max Wheel Load: 7.5 kN
- Duty Class: A3
- Power Supply: 380V 50Hz 3P
- Environment: Indoor workshop use
- Drawing Package:Cantilever Underhung Crane 1 Ton S4.5m H18m A3 with VFD Long Travel Cantilever Underslung Crane Underhung Bridge Crane CDH Hoist for High Lift Narrow Bay 7.5 kN Wheel Load 380V 50Hz General layout PDF
Cantilever Underhung Crane Main Technical Parameters
| Technical Parameter | Specification |
|---|---|
| Quantity | 1 Unit |
| Crane Type | Cantilever Underhung Crane / Cantilever Underslung Crane |
| Duty Class | A3 (Light Duty / Intermittent Use) |
| Lifting Capacity | 1 t |
| Crane Span | 4.5 m (4500 ± 2.5 mm) |
| Left Cantilever | 0.3 m |
| Right Cantilever | 0.3 m |
| Lifting Height | 18 m |
| Total Height | 767 mm |
| Total Width | 1000 mm |
| Buffer Stroke | 30 mm |
| Long Travel Speed | VFD 20 / 10 m/min |
| Crane Travel Motor | SZW-050, 0.4 kW × 2, 1400 r/min |
| Rail Type | I 20m-45c |
| Wheel Diameter | Ø130 mm |
| Max Wheel Load | 7.5 kN |
| Power Supply | 380V 50Hz 3P |
| Drawing Number | LX1-4.5m A3 |
| Manufacturer | Yuantai Crane Machinery |
Cantilever Underhung Crane Hoist, Trolley & Drive Parameters
| Component / Drive | Specification |
|---|---|
| Hoist Type | CDH Electric Wire Rope Hoist (Trolley Mounted) |
| Lifting Capacity | 1 t |
| Lifting Height | 18 m |
| Hoist Lifting Speed | 8 m/min |
| Lifting Motor Power | 1.5 kW |
| Trolley Travel | Electric Trolley Travel on Single Girder |
| Trolley Travel Motor | SZW-050 |
| Long Travel Drive | VFD Long Travel (20/10 m/min) |
| Long Travel Speed | 20 / 10 m/min (VFD Dual Speed) |
| Crane Travel Motor | SZW-050, 0.4 kW × 2, 1400 r/min |
| Left Cantilever | 0.3 m |
| Right Cantilever | 0.3 m |
| Total Height | 767 mm |
| Total Width | 1000 mm |
| Buffer Stroke | 30 mm |
| Rail Type | I 20m-45c |
| Wheel Diameter | Ø130 mm |
| Max Wheel Load | 7.5 kN |
| Power Supply | 380V 50Hz 3P |
| Duty Class | A3 |
Cantilever Underhung Crane Technical Requirement
Note:
- Cantilever Design: The crane has a 0.3m cantilever on the left and right — the girder extends 300mm beyond each end carriage, allowing the hoist to travel beyond the rail line on both sides for additional working coverage.
- 18m Lifting Height: This crane is configured for high-lift applications requiring an 18m hook travel — suitable for tall workshops, silos, or vertical process equipment where a long hook reach is essential.
- VFD-Controlled Long Travel (20/10 m/min): The long travel uses variable frequency drive with dual speeds (20/10 m/min) for smooth acceleration, deceleration, and precise positioning along the runway — reducing load swing and improving operator control.
- CDH Hoist with 1.5kW Motor: The CDH electric wire rope hoist delivers an 8 m/min hoist lifting speed with a 1.5kW lifting motor — a proven design for light-duty lifting.
- Compact Underhung Crane: The 767mm total height and 1000mm total width fit narrow workshops with limited headroom, running on the bottom flange of the runway beam.
- A3 Duty Class: Rated for A3 duty — light duty, intermittent use. Suitable for occasional lifting, maintenance, and precision positioning tasks.
- 7.5 kN Max Wheel Load on I 20m-45c Rail: The Ø130mm wheels run on I 20m-45c rail, with a maximum wheel load of 7.5 kN per end carriage — verify the runway beam and building structure capacity before installation.
- Standard 380V 50Hz 3P Grid: Configured for standard three-phase industrial power supply networks.
- Distance from workshop backspan to crane peak should exceed 200mm. Verify this clearance before installation of the cantilever underhung crane and cantilever underslung crane.
- The cantilever underhung crane drawing and technical parameters shown above are for reference only. For specific crane dimensions or high-lift cantilever requirements, please consult us for a free engineering evaluation.
- Depending on custom site requirements, high-bay structural conditions, or special cantilever configurations, a design fee/price may apply. Contact the Yuantai Cranes engineering team for formal proposals.
- Unauthorized copying, distribution, or manufacturing based on this cantilever underhung crane drawing without written permission from Yuantai Cranes is strictly prohibited. Yuantai Cranes assumes no legal responsibility for unauthorized usage.
How to Get Your Customized Cantilever Underhung Crane
This cantilever underhung crane drawing serves as a high-lift, cantilever template for narrow bays and vertical process equipment. Yuantai Cranes customizes every cantilever underhung crane, cantilever underslung crane, underhung bridge crane with cantilever, end carriage, and end truck to match your specific crane span, cantilever length, lifting capacity, lifting height, VFD requirements, and travel speed requirements.
| Process Step | Details |
|---|---|
| Step 1: Share Your High-Lift & Cantilever Parameters | Provide us with your required capacity, span (e.g., S4.5m), cantilever length (e.g., 0.3m left and right), lifting height (e.g., H18m), VFD requirements (e.g., long travel VFD), number of cranes (e.g., 1 unit), and local voltage. |
| Step 2: Free CAD Drawing & Engineering Review | Our design team generates custom cantilever underhung crane layout drawings, 3D renderings, high-lift hoist reeving design, and wheel load calculations free of charge. |
| Step 3: Technical Confirmation | We confirm cantilever length (0.3m each side), VFD long travel configuration (20/10 m/min), CDH hoist specification (1.5kW motor, 8 m/min speed), high-lift reeving for 18m, and control options with your team. |
| Step 4: Precision Manufacturing & Global Delivery | Your cantilever underhung crane, end carriages, VFD panel, and runway rail are manufactured under strict ISO quality standards, factory tested, and delivered straight to your workshop. |
Need a Customized Cantilever Underhung Crane Drawing & Quote?
Send us your high-lift and cantilever requirements today. Yuantai technical consultants will provide a free cantilever underhung crane CAD drawing, 3D rendering, high-lift reeving design, and tailored price quote within 24 hours.
FAQs About This Cantilever Underhung Crane 1 Ton - S4.5m - H18m A3 with VFD Long Travel Drawing
Everything clients ask before using this cantilever underhung crane drawing — why a cantilever design is chosen, how the 0.3m left/right cantilever works, why VFD long travel (20/10 m/min) is specified, how the 18m lifting height is achieved with a CDH hoist, 767mm total height, 1000mm total width, 7.5 kN wheel load, I 20m-45c rail, 380V 50Hz 3P power, and what to send for a project cantilever crane drawing and quote.
1. What is included in this Cantilever Underhung Crane 1 Ton - S4.5m - H18m drawing package?
This cantilever underhung crane drawing package (No. LX1-4.5m A3) is delivered as a General Layout PDF plus a 3D rendering, covering 1 unit. The cantilever underhung crane — also called a cantilever underslung crane or underhung bridge crane with cantilever — includes: the bridge girder with 0.3m cantilever on each side, end carriages, CDH electric wire rope hoist with trolley, VFD long travel panel, and pendant + remote control. The drawing marks S4.5m span (4500 ± 2.5mm), 0.3m left and right cantilever, 18m lifting height, 767mm total height, 1000mm total width, and 7.5 kN max wheel load. It does not cover runway rail, building structure, site power supply, or local permits — those are site-side scope.
2. Why is a cantilever design used on this underhung crane?
A cantilever design is used on this underhung crane because:
- Extends working coverage: The 0.3m cantilever on each side lets the hoist travel beyond the rail line on both sides — increasing the effective working width beyond the 4.5m span
- Narrow-bay fit: In narrow bays where the runway rails are close together, the cantilever lets the crane reach into areas that would otherwise be unreachable
- Obstruction handling: If a column, pipe, or structure obstructs one side of the bay, the cantilever lets the hoist reach around it
- Loading area access: The cantilever can extend over a loading dock, doorway, or machine where the main span cannot reach
- Wider span at 4.5m: Compared to the smaller 3.6m span version, this crane covers a wider working area while still providing the cantilever reach
The cantilever is a specialized design that adds cost and complexity — it is used when the extra reach is essential, not as a general-purpose configuration.
3. Why is VFD long travel (20/10 m/min) specified on this cantilever crane?
VFD (Variable Frequency Drive) long travel with dual speeds (20/10 m/min) is specified on this cantilever crane because:
- Smooth acceleration and deceleration: VFD eliminates the abrupt start/stop of contactor control, reducing load swing and improving load stability — especially important for the cantilevered hoist position
- Precise positioning: The VFD allows stepless speed control from very slow (jog) to full speed (20 m/min) for precise positioning along the runway
- Dual-speed selection: The operator can select 20 m/min for rapid travel or 10 m/min for slower, more controlled travel — giving flexibility for different handling tasks
- Reduced mechanical wear: Soft starting and stopping reduces shock loads on the end carriages, wheels, and rail — extending service life
- High-lift stability: At 18m lift height, VFD travel helps control load swing and keeps the load stable during travel
Only the long travel is VFD in this configuration — the hoist and trolley may use standard control, keeping the cost reasonable while providing the most important motion (long travel) with smooth VFD control.
4. How is the 18m lifting height achieved with the CDH hoist?
The 18m lifting height is achieved with the CDH electric wire rope hoist through several design features:
- Extended wire rope reeving: The CDH hoist is supplied with drum capacity and wire rope length designed specifically for 18m hook travel
- 1.5kW lifting motor: The hoist motor is sized for the 1t capacity and 18m lift with a 8 m/min lifting speed
- Guide system: The wire rope is guided along a controlled path to prevent slack or tangling at high lift
- Controlled lifting speed: The 8 m/min hoist lifting speed gives precise control during the long hook travel
- High-bay crane design: The crane girder and end carriages are designed to fit high-bay workshops with the 767mm total height
- Proven CDH design: The CDH hoist is a widely used and reliable hoist design for light-duty high-lift applications
High-lift cantilever underhung cranes are used in tall workshops, silos, and vertical process equipment where an 18m hook reach is essential to reach loads at depth.
5. Which numbers on this cantilever underhung crane drawing must match my workshop exactly?
Nine numbers on this cantilever underhung crane drawing must match your workshop, or the crane will not fit or operate correctly:
| Drawing Value | What It Must Match On Site | If It Does Not Match |
|---|---|---|
| Span: S4.5m | Runway rail center-to-center distance (4500 ± 2.5 mm) | Cantilever underhung crane bridge must be redesigned |
| Left cantilever: 0.3m | Required reach beyond the left rail | Left cantilever must be re-engineered |
| Right cantilever: 0.3m | Required reach beyond the right rail | Right cantilever must be re-engineered |
| Total height: 767mm | Hook height above runway rail; backspan to crane peak clearance should exceed 200mm | End carriage or hoist reeving must be changed |
| Total width: 1000mm | Clear width between building columns | Interference with columns or structures |
| Lifting height: 18m | Building clear height required for the 18m hook travel | CDH hoist reeving and drum capacity must be re-designed |
| Wheel load: 7.5 kN | Runway beam and building column capacity | Runway structure must be reinforced |
| Rail type: I 20m-45c | Runway rail type and support on the bottom flange | Rail and end carriage wheels must be re-specified |
| Long travel: VFD 20/10 m/min | Runway length and VFD panel installation space | VFD panel and cable routing must be re-designed |
If any of these differ from your workshop, tell Yuantai before ordering — each change affects price and lead time on the cantilever underhung crane.
6. What is the difference between this 4.5m span version and the smaller 3.6m span version?
The two versions are part of the same cantilever high-lift crane family, with key differences:
| Parameter | This Model (4.5m) | Smaller Model (3.6m) |
|---|---|---|
| Crane Span | 4.5 m | 3.6 m |
| Lifting Height | 18 m | 24 m |
| Lifting Speed | 8 m/min | Not specified in drawing |
| Lifting Motor | 1.5 kW | Not specified in drawing |
| Max Wheel Load | 7.5 kN | Not specified in drawing |
| Rail Type | I 20m-45c | Not specified in drawing |
| Buffer Stroke | 30 mm | Not specified in drawing |
Choose the 4.5m span version when your workshop requires wider span (4.5m) and 18m lifting height; choose the 3.6m span version when your workshop requires a narrower span (3.6m) and a taller 24m lifting height. Contact Yuantai with your specific span and height requirements for the correct model.
7. Is this cantilever underhung crane suitable for outdoor use?
No — this cantilever underhung crane is configured for indoor workshop use as a cantilever underslung crane or underhung bridge crane with cantilever. The crane runs on elevated runway rails supported by the building structure. Outdoor use would require:
- Different crane type: A gantry crane with ground rails and A-frame legs is usually more suitable for outdoor use
- Weather protection: Outdoor-rated electrical enclosures (IP55+) and anti-corrosion treatment — especially important for the VFD panel and CDH hoist at 18m height
- Wind load design: Anti-wind devices and anchoring — critical at 18m lift height where wind loads on the load are significant
- Rain cover: Protect the crane, CDH hoist, and electricals from rain and snow
For outdoor applications, consult Yuantai Cranes for a suitable gantry crane or a weather-protected cantilever underhung crane solution.
8. What site work is NOT covered by this cantilever underhung crane drawing project?
To avoid surprises at installation, these items are outside the cantilever underhung crane supply scope unless you specifically add them:
- Runway rail (I 20m-45c) and rail fasteners
- Runway beam and building column reinforcement
- Building structural support for the 7.5 kN wheel load — critical at 18m height
- Site power supply up to the crane isolator — including clean power for the VFD
- VFD panel installation space and cable routing along the runway
- High-bay structural verification (building clear height, roof truss capacity)
- Long wire rope replacement access provision
- Erection crane and site lifting equipment for high-bay installation
- Local electrical connection and permits
Because the cantilever underhung crane operates at 18m lift height, the building structure and installation access are critical — the runway beam and columns must support the 7.5 kN wheel load at the wide span, and the installation must be planned for high-bay conditions. Yuantai can provide runway load drawings and installation guidance as optional items.
9. What do I need to send to get a project cantilever underhung crane drawing and price?
Send these eleven items and Yuantai will issue a free custom cantilever underhung crane CAD drawing and proposal within 24 hours:
- Required lifting capacity (t) — e.g., 1t
- Crane span (m) — e.g., 4.5m
- Left cantilever length (m) — e.g., 0.3m
- Right cantilever length (m) — e.g., 0.3m
- Required lifting height (m) — e.g., 18m
- Number of cranes required (e.g., 1 unit)
- Building clear height and roof structure capacity
- Power supply (V / Hz / Ph) — e.g., 380V 50Hz 3P
- VFD scope — long travel only, or full VFD
- Duty class — e.g., A3
- Control requirement — e.g., pendant + remote
The more complete the list, the faster and more accurate the cantilever underhung crane drawing and quote.
10. Is this cantilever underhung crane drawing free to use, and is a design fee charged?
This published cantilever underhung crane drawing and 3D rendering are a free technical reference — you may use them to plan your workshop and check fit. A project-specific cantilever underhung crane GA drawing and 3D model are also free for standard configurations. A design fee may apply only for complex high-bay conditions, non-standard cantilever lengths, specialized VFD requirements, or customized high-lift reeving design. The cantilever underhung crane drawing remains the property of Yuantai Cranes: unauthorized copying, use, or manufacturing without written authorization is strictly prohibited.
Cantilever Underhung Crane Applications: Where This Cantilever Underslung Crane Is Used
This Cantilever Underhung Crane 1 Ton - S4.5m - H18m A3 with VFD Long Travel (LX1-4.5m A3) is configured for cantilever underhung cranes, cantilever underslung cranes, and underhung bridge cranes with cantilever in narrow or high-bay workshops requiring reach beyond the rail line. The 4.5m span with 0.3m cantilever each side and 18m lifting height fit specialized applications. Typical cantilever underhung crane applications include:
| Application / Industry | Typical Handling Task | Why This Cantilever Underhung Crane Fits |
|---|---|---|
| Narrow bays with obstruction | Reaching around columns or pipes to lift loads at 18m height. | 0.3m cantilever lets the hoist reach beyond the rail line on both sides. |
| High-bay workshops (15m+) | Lifting 1t loads to 18m height in tall, narrow workshops. | 18m lifting height with VFD long travel for stable high-altitude handling. |
| Silos and vertical process equipment | Lifting loads into or out of tall silos and vertical vessels. | 18m hook travel reaches deep into vertical equipment. |
| Pits and below-grade lifting | Lifting loads from pits or below-grade areas where long hook travel is essential. | 18m lifting height reaches deep into pits and below-grade areas. |
| Precision positioning tasks | Positioning 1t loads with precise control along the runway. | VFD long travel (20/10 m/min) gives smooth, precise positioning. |
| Maintenance halls with vertical equipment | Lifting 1t equipment for maintenance at multiple heights. | High-lift capability and cantilever reach for maintenance tasks. |
| Test towers and R&D facilities | Positioning 1t loads at multiple heights in tall test towers. | 18m lifting height with VFD long travel for precise positioning at any level. |
| 380V 50Hz high-bay facilities | Any indoor high-bay lifting task on a standard 380V 50Hz 3P grid. | Electrical package is configured out-of-the-box for 380V 50Hz 3P. |
Best-Fit Working Conditions for This Cantilever Underhung Crane
- Narrow or high-bay workshops: The 4.5m span and 1000mm total width fit narrow bays; the 18m lifting height fits high bays.
- Cantilever reach needed: The 0.3m left and right cantilever extends the working coverage beyond the rail line.
- High lifting height (18m): The CDH hoist reeving is designed for 18m hook travel.
- Precise positioning (VFD long travel): The 20/10 m/min VFD long travel gives smooth acceleration and deceleration for precise positioning.
- Light capacity (1t): Fits light-load handling in specialized applications.
- A3 duty class: Suitable for occasional lifting, maintenance, and precision positioning tasks.
- Building structure supports the crane: The runway beam and building columns must support 7.5 kN wheel load.
- 380V 50Hz 3P power available: Electrical package is pre-configured for this grid.
- Indoor environment: The cantilever underhung crane is designed for protected indoor workshop use.
Applications Where This Cantilever Underhung Crane Is Not Recommended
- Outdoor or open yards: The cantilever underhung crane requires elevated runway rails on a building structure — for outdoor use, see the gantry crane range.
- Wide bays without obstruction: A standard single girder underhung crane without cantilever is more economical if no obstruction or reach issue exists.
- Loads above 1t: A heavier underhung crane or double girder crane is required.
- High-frequency or continuous handling: A3 duty is for intermittent use — for high-frequency handling, a heavier-duty crane is required.
- Low-headroom buildings: The 18m lift requires significant building height — if headroom is limited, a shorter lift crane is more suitable.
- Buildings without runway beam capacity for 7.5 kN: The runway beam must support the 7.5 kN wheel load.
Yuantai Cantilever Underhung Crane, Cantilever Underslung Crane & High-Lift Crane Solutions
Yuantai Cranes provides customized cantilever underhung crane solutions tailored for narrow bays, high-bay workshops, and specialized reach requirements. Every cantilever underhung crane, cantilever underslung crane, underhung bridge crane with cantilever, and VFD long travel crane is manufactured to your exact specifications for capacity, span, cantilever length, lifting height, hoist type, VFD requirements, control requirements, and electrical power supply.
Typical Cantilever Underhung Crane Technical Specifications:
- Capacity: 0.5–10.0 ton (This Model: 1.0 t)
- Crane Span: 3.0–20.0 m (This Model: S4.5m Span / 1000mm Total Width)
- Left Cantilever: Customized (This Model: 0.3 m)
- Right Cantilever: Customized (This Model: 0.3 m)
- Lifting Height: Customized up to 30+ meters (This Model: 18 m)
- Number of Cranes: 1–4 units on same runway (This Model: 1 Unit)
- Hoist Type: CDH Electric Wire Rope Hoist (This Model)
- Hoist Lifting Speed: 8 m/min (This Model)
- Lifting Motor: 1.5 kW (This Model)
- Long Travel Drive: VFD Long Travel (This Model)
- Long Travel Speed: 20/10 m/min VFD dual speed (This Model)
- Crane Travel Motor: SZW-050, 0.4 kW × 2, 1400 r/min (This Model)
- Total Height: 767 mm (This Model)
- Total Width: 1000 mm (This Model)
- Buffer Stroke: 30 mm (This Model)
- Rail Type: I 20m-45c (This Model)
- Wheel Diameter: Ø130 mm (This Model)
- Max Wheel Load: 7.5 kN (This Model)
- Control Method: Pendant Control & Remote Control
- Power Supply Spec: 220/380/400/415/440/480/575V, 50/60Hz, 3Ph (This Model: 380V 50Hz 3P)
- Duty Class: A3 (This Model)
- Environment: Indoor High-Bay Workshop Use
- Applications: Narrow bays with obstruction, high-bay workshops, silos and vertical process equipment, pits and below-grade lifting, precision positioning tasks, maintenance halls with vertical equipment, test towers and R&D facilities
Yuantai provides complete cantilever underhung crane project engineering, high-lift hoist reeving design, VFD long travel integration, high-bay installation planning, FAT testing, export packaging, delivery, and installation guidance for global buyers.
Cantilever Underhung Crane Engineering Support & Customization
Running a narrow or high-bay workshop needing cantilever reach and precise VFD long travel? This cantilever underhung crane drawing demonstrates how Yuantai Cranes custom-engineers cantilever underhung cranes, cantilever underslung cranes, and high-lift cranes with CDH hoists, VFD long travel, extended reeving, and flexible control for demanding high-bay environments.
| Customer Challenge & Working Condition | Yuantai Cantilever Underhung Crane Solution | Reference Parameters (Based on Drawing) |
|---|---|---|
| Narrow bay with obstruction or reach requirement Requires the hoist to reach beyond the rail line on both sides, with a wider 4.5m span. | Cantilever underhung crane with 0.3m left and right cantilever and 4.5m span — extends the working coverage beyond the rail line. | Span: S4.5m | Left Cantilever: 0.3m | Right Cantilever: 0.3m | Capacity: 1.0t (Model: LX1-4.5m A3) |
| High-bay workshop with 18m hook travel Requires a crane that can lift loads to 18m height. | CDH electric wire rope hoist with extended reeving and drum capacity designed for 18m lift, mounted on a compact crane profile. | Lifting Height: 18m | CDH Hoist | 1.5kW Motor | 8 m/min Lifting Speed | Total Height: 767mm |
| Precise positioning requirement Requires smooth, stepless control on long travel. | VFD long travel (20/10 m/min) for smooth acceleration, deceleration, and precise positioning along the runway. | Long Travel: VFD 20/10 m/min | Smooth positioning | Reduced load swing at 18m height |
| Compact footprint for high-bay fit Requires a crane that fits narrow high-bay spaces with limited headroom. | Compact crane profile (767mm total height, 1000mm total width) fits narrow high-bay workshops with 7.5 kN max wheel load on I 20m-45c rail. | Total Height: 767mm | Total Width: 1000mm | Max Wheel Load: 7.5 kN | Rail: I 20m-45c | Power: 380V 50Hz 3P |
How to Evaluate If This Cantilever Underhung Crane Fits Your Workshop
- Cantilever Reach (0.3m Left + 0.3m Right): The cantilever extends the working coverage beyond the rail line — ideal for narrow bays and obstructions.
- 18m Lifting Height: The CDH hoist extended reeving is designed for high-bay applications needing 18m hook travel.
- VFD Long Travel (20/10 m/min): Smooth acceleration and deceleration on long travel for precise positioning and load stability.
- Compact 767mm Height & 1000mm Width: Fits narrow high-bay workshops with limited headroom.
- Light 1t Capacity: Fits specialized light-load handling and maintenance tasks.
- A3 Duty Class: Suitable for occasional lifting, maintenance, and precision positioning tasks.
- 7.5 kN Wheel Load on I 20m-45c Rail: Verify the runway beam and building column capacity before installation.
- Pendant & Remote Control: Both control options for flexible operator positioning.
- 380V 50Hz 3P Ready: The cantilever underhung crane is factory-configured for this grid.
Unsure If This Cantilever Underhung Crane 1 Ton - S4.5m - H18m A3 with VFD Long Travel Fits Your Workshop?
Send us your workshop parameters (Building Clear Height, Column Spacing, Span, Cantilever Requirement, Hook Height, VFD Requirement, and Voltage). Yuantai technical consultants will provide a FREE custom cantilever underhung crane CAD layout drawing, 3D model, high-lift reeving design, and competitive quote within 24 hours.
Yuantai Cranes
Overhead Crane Manufacturer with CE, ISO, SGS, CNEX Certificates.
- Main Specifications - Capacity: 0.5–550 tons | Span: up to 40m | Speed: 0.8–12 m/min | Duty: A3–A7 | Power: 380–690V, 50/60Hz | Control: pendant/remote/cabin
- Full engineering: FEA/PLC/VFD + in-house build + global delivery + on-site support, for workshops, factories, EPC contractors, industrial projects, etc.
- Support: design, manufacturing, testing, service – end-to-end, customized lifting solutions worldwide.
How to Get an Accurate Crane Price for Your Application?
Tips: Copy the spec list, fill in your details, and paste it into the form on the right/ down-below for a quick price.
- Crane type:_____ . (e.g., overhead crane, gantry crane, jib crane)
- Max weight to lift:_____ tons. (e.g., 2t, 5t, 10t, 20t, 50t)
- Lifting height:_____ m. (How high does the hook need to reach?
- Workshop width (span):_____ m . (Distance between the two crane rails)
- Travel distance:_____ m . (How long does the crane need to move along the runway?)
- Control type:_____. (Pendant / remote / cabin Control)
- Power supply:_____. (Local voltage & frequency – e.g., 380V, 50Hz, 3-phase)
- What will it be used for?_____ (e.g., steel fabrication, concrete products, mold handling, general manufacturing, etc.)
- Any special requirements?_____ (e.g., extreme temperature, dusty or explosive environment, special paint color, etc.)
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