Double beam cranes offer higher lifting capacity, better hook height, and increased structural rigidity. For loads like 50 tons, they can distribute forces more effectively across two girders, reducing bending and providing longer life. When span is large or heavy loads are frequent, double beam designs maintain stability and safety better than single girder ones.

These features reduce mechanical shock, minimize wear and tear, and improve safety. Soft start/stop prevents sudden jolts, reducing stress on hoist, girder, trolley, and support structures. Variable speed control (via inverter or transducer) for travelling or traversing allows operators to adjust speed to suit load, environment, or safety concerns—slower in tight or busy areas, faster when moving unloaded or light loads.

The steel structure of our products is generally packaged with plastic film to protect it from rain.

Critical features include limit devices (lift height limit, trolley/eot limit), overload protection, emergency stop functions, hook latch, buffer/rubber bumpers, phase sequence protection, temperature protection on electrical components, laser or other collision warning systems, and having well-certified safety gear. Also check seals, window materials, visibility, structural integrity, electrical grounding, and whether all components meet the duty class you need.

Working class (or duty class) describes how often and heavily the crane will be used. For example:
* A3: light or occasional work (warehouses, light assembly)
* A5 or A6–A7: more frequent use in industrial or factory conditions (steel plants, foundries, loading yards)
If your operations involve continuous heavy loads, frequent lifts, or harsh conditions, you’ll want a higher duty class. Choosing too low can lead to premature wear, higher maintenance, and safety risks.

Ensure the building structure and crane rail supports are capable of sustaining both dead loads (crane self weight) and dynamic loads (moving loads). Measure headroom to ensure crane and hoist/bridge/trolley can operate without obstruction. Plan for approach clearances, cabin clearance, control access, and potential maintenance access. Also check power availability, environmental conditions (temperature/humidity), and whether corrosion or air quality could affect equipment.

Regular inspections of the hoist, trolley, wheels, girders for cracks or deformations. Check electrical systems (insulation, phase sequence, control circuits). Maintain lubrication on bearings, gearboxes, wire ropes. Ensure safety devices (limit switches, buffers, hook latches) are functioning correctly. Monitor noise and vibrations. Replace worn parts proactively, and keep spare parts inventory for critical components.