- May 26, 2025
- Case Studies
10 Ton Overhead Cranes to Bangladesh
The customer operates a precast concrete plant near Dhaka, Bangladesh. The facility manufactures beams, wall panels, and modular segments for residential and in
Industry Profile and Customer Background
The customer operates a busy automotive repair and maintenance workshop in Bamako, Mali. The shop handles engine overhauls, transmission replacements, chassis repairs, and body-work on passenger vehicles and light trucks. Prior to this project, mechanics relied on portable engine hoists and forklifts, which limited capacity, coverage, and safety. As vehicle volumes rose, the shop needed a dedicated lifting solution to improve workflow and reduce manual effort.
Customer Needs and Pre-Implementation Challenges
Lifting capacity, speed, safety, and space efficiency must all be considered in order to meet customer demands in a hectic manufacturing setting. If you need to install a new crane, you need to determine the needs of your project and the limitations of your on-site facilities.Problems including restricted hook height, short installation windows, and the need to maintain manufacturing add complexity. By determining these factors in advance, you can ensure that your lifting solution meets your lifting needs and also runs smoothly, reliably and durably.
1. Load Capacity and Coverage Requirements
The workshop needs to lift automotive parts up to nearly 10 tons. In addition, they required the cranes to have a span of 15 meters between the rail girders in order to serve both repair stations without blocking the maintenance access. Select a 10-ton Safe Working Load (SWL) for future use in light truck axle and suspension assemblies.
2. Height and Speed Specifications
Hook height needed to reach 5 m under beam to clear vehicle lifts and mezzanine platforms. Lifting speed of 5 m/min for rapid approach and a low-speed 0.8 m/min for precise positioning were specified. Trolley travel speed of 20 m/min would minimize non-productive moves between bays.
3. Safety and Duty Cycle
The shop runs two 8-hour shifts five days per week. They required an ISO 4301-1 duty class A5 crane rated for up to 125 000 cycles per year. Safety features like overload protection, anti-sway control, and emergency stops were essential to meet local workshop regulations and minimize risk of lifting accidents.
4. Limitations of Previous Equipment
Mechanics used engine hoists with 2 t capacity but only offered localized coverage. Forklifts needed clear space and could not position heavy loads precisely over service pits. Engine removal took up to 30 minutes per vehicle. Minor collisions and chain hoist failures caused repeated workshop delays and two finger-crush incidents in 2024.
Product Design and Technical Specifications
This crane's technical requirements and product design emphasize striking a balance between accurate control, dependable safety measures, and structural strength. From the main girder to the hoist and driving system, every part is designed to provide steady and effective lifting operations. Performance and operator safety are guaranteed by cutting-edge technologies including VFD-driven motion and integrated safety devices. When combined, these design decisions provide a system that is accurate, long-lasting, and well-suited to the operational requirements of contemporary industrial settings.
1. HD Series Single-Girder Bridge Crane Structure
The 10 ton HD single-girder bridge crane uses a welded box girder made from Q345B steel for excellent strength-to-weight balance. The girder includes internal stiffeners and access ports for inspection and coating touch-ups. We kept full-load deflection below L/800 of the span to ensure steady load control and accurate positioning. Fabrication follows controlled welding procedures and final NDT checks. A corrosion-resistant finish is applied to protect the steel and extend service life in industrial environments.
2. End Carriages and Runway Installation
End carriages ride on 43 kg/m crane rails that we fasten securely to the workshop's steel roof trusses. Wheels and sealed roller bearings are specified to resist dust and oil mist so they keep rolling without frequent service. Rail alignment used laser leveling to reach ±3 mm accuracy, which reduces wear and improves ride stability. Rail pads, anchors, and access for adjustment are provided so you can monitor and correct alignment over time. We also make sure the wheel and rail profiles match for smooth travel and even load distribution.
3. Electric Wire Rope Hoist
The HD open-winch hoist has a dual-speed gearbox to give you fine control and fast positioning. Lift speeds are 0.8 m/min for precise handling and 5 m/min for faster moves. We fit an 8×36 IWRC wire rope with a 6×SWL safety factor so the rope's breaking strength far exceeds rated loads. A spring-applied, electro-released brake holds the load safely when power is off. Drum grooves, lubrication points, and rope terminations are designed for easy inspection and replacement during routine maintenance.
4. Trolley and Bridge Drives
Trolley and bridge motions use separate VFD-controlled motors so you can vary speed and stop smoothly. The trolley runs from 3 to 20 m/min and the bridge from 5 to 25 m/min, giving you the control you need for different tasks. Soft-start and soft-stop features reduce jerk and limit load swing during starts and stops. Gearboxes and motor mounts are accessible for service and include thermal protection and shaft seals to keep contaminants out. The VFDs also let you tune acceleration and deceleration to match your workflow.
5. Control and Safety Devices
Controls are straightforward and focused on safety. The pendant includes a dead-man switch and an emergency-stop for immediate shutdown. An overload limiter uses a calibrated strain gauge sensor to cut power at the crane's rated load, and we recommend regular calibration checks. Upper/lower hoist and trolley end-travel limit switches prevent over-travel. Anti-sway is handled by VFD acceleration ramps and by operator technique during delicate moves. Motors and electrical panels are housed in IP54 enclosures for dust and splash protection, and we include grounding and clear labeling to support safe operation and inspections.
Advantages of Our 10 Ton HD Bridge Crane
When evaluating the performance of the 10 ton HD bridge crane, it is important to look beyond lifting capacity and consider how it improves day-to-day operations. This crane was designed to meet the demands of modern workshops where efficiency, safety, and reliability are essential. It offers a well-rounded approach to managing large loads while lowering hazards and downtime by fusing robust components with sophisticated control systems. The following points highlight the key advantages that make this crane a practical choice for facilities with diverse lifting needs.
1. Improved Efficiency and Throughput
The engine removal and installation cycle time per vehicle was reduced from about 330 minutes to a few minutes. 20 lifts per day, saving hours of labor and increasing maintenance capacity by 25%.
2. Enhanced Safety and Risk Reduction
Since installation, the shop recorded zero lifting-related injuries. Mechanical overload protection and smooth VFD control eliminated chain jolts and load sway that previously caused pinch incidents.
3. Reliability and Low Maintenance
They had a long process of repairing the cranes because the previous cranes were not able to handle the entire process successfully, and because the old equipment had been in use for a long time, they needed to spend a certain amount of downtime each year repairing the equipment. After installing the new crane, there were no usage problems for several months. They need very little time to maintain their cranes, which reduces their repair costs while minimizing crane downtime.
4. Versatile Load Handling
With a 10 ton SWL, the crane now handles heavy transmissions, complete chassis assemblies, and hydraulic presses. Its precise control also assists in lifting electric vehicle battery packs in the shop'EV conversion line.
Implementation and Operational Results
The implementation and commissioning stage is where planning becomes reality. It ensures that the crane system is installed correctly, tested under safe conditions, and ready for daily use. This process covers every step from site preparation to operator handover. In addition to ensuring equipment function, careful execution at this stage lowers risks, prevents expensive delays, and increases operator trust.
1. Installation and Commissioning
Delivery to Bamako took five weeks from order. Installation took four days: rail mounting, beam placement, hoist and trolley rigging, and wiring. We conducted static proof load tests at 125% SWL and dynamic trials at full speed, documented according to EN 13001 guidelines.
2. Operator Training and Handover
We provided one day of on-site training. Technicians practiced load lifting, emergency stops, and daily inspection checklists. Each received an operation manual, wiring diagram, and maintenance schedule.
Applications for the 10 Ton HD Bridge Crane
The 10 ton heavy-duty (HD) bridge crane adapts to a wide range of lifting tasks across indoor and outdoor settings. Its robust design, optional low-headroom features, and environmental protections ensure reliable service in varied workflows and climates.
1. Indoor Workshop Bays
In service workshops, the crane spans two maintenance pits while servicing three lift points on a single runway. A low-headroom trolley lets the hoist sit close to the beam flange, maximizing clear hook height for deep under-vehicle access. Technicians can switch between lift points without relocating vehicles, cutting setup time and improving bay utilization.
2. Outdoor Parking and Inspection Area
Equipped with IP54-rated motors and sealed end-truck bearings, the crane operates through rainy seasons without corrosion or motor stalls. It lifts vehicles outdoors for underbody inspections, eliminating the need to transfer them indoors. This direct-lift capability speeds up fleet maintenance and reduces shop congestion.
3. Mobile Service Unit Integration
A covered bay adjacent to the crane runway accommodates a mobile truck lift that docks under the bridge. With the crane'10 ton capacity, heavy engine or transmission modules can be swapped on site. This integration combines the flexibility of mobile lifts with the power of a fixed crane, improving service turnaround for large equipment.
4. Automotive Manufacturing and Assembly
On small assembly lines, the crane installs engines, transmissions, and subframe assemblies into chassis jigs. Its precise trolley travel and hoist control align heavy components with minimal manual adjustment. The crane'throughput supports light-manufacturing workflows where repeatable, reliable lifts keep production moving.
5. Agricultural Equipment Maintenance
Tractor and harvester service centers use the crane to handle bulky drivetrain parts—transmissions, hydraulic pumps, and loader arms. Its high capacity accommodates fully assembled units, reducing disassembly steps. The crane'weatherproof finish makes it suitable for both indoor barns and open-shed workshops.
6. Small-Scale Fabrication Shops
Metalworking shops lift welded assemblies, steel plates, and machining fixtures with ease. The crane'10 ton safe working load (SWL) covers heavy steel frames and molds. Adjustable end-truck buffers prevent over-travel in tight shop layouts, ensuring both safety and efficient material flow.
7. Warehouse and Logistics Centers
In distribution hubs, the crane moves palletized heavy goods, stacks steel drums, and handles machinery components. Its long span covers multiple aisles, reducing forklift traffic. Regenerative drives capture energy during load descent, lowering operating costs in around-the-clock operations.
Yuantai 10 Ton Bridge Crane
Conclusion
The 10 ton HD series single-girder bridge crane delivered to the Mali vehicle repair shop met all of the requirements, including increased load capacity, expanded span coverage, precise lift control, and robust safety measures. It decreased engine swap cycle times from 30 minutes to 8 minutes, cut maintenance hours by 83%, and eliminated lifting accidents. Aside from workshop application, this crane design is suitable for light automotive assembly, agricultural equipment service, small fabrication shops, and warehouse activities.
