200/50 t Frequency adjustable double girder overhead crane for Heavy Industries
In heavy industrial plants such as metallurgy, forging, and heavy machinery manufacturing, the lifting of steel billets, forgings, and machine parts weighing hundreds of tons often places stringent requirements on the load-bearing capacity and accuracy of lifting equipment. The 200/50 t double-girder overhead crane, with its unique design of coordinated operation of the main and auxiliary hooks, has become the core equipment to meet the needs of mixed lifting of oversized and precision.
Technical Parameters:
| Load Capacity | Master hook: 200 tons, Auxiliary hook： 50 tons |
| Span Range | 18-35 m |
| Work Level | A7 (Suitable for heavy-duty operating conditions) |
| Operating Method | Interlinked control console + wireless remote dual mode |
| Power Source | 3-phase AC, 380V 50Hz |
Advantages in Details:
1. Double -hook design: This double-beam bridge crane adopts a dual hook configuration with a 200-ton main hook and a 50-ton auxiliary hook. The main hook is customized for heavy workpieces and can easily complete heavy-duty tasks such as steel ladle transfer and large roller lifting; the auxiliary hook focuses on auxiliary operations and can quickly lift small and medium-sized components such as molds and tools. The main and auxiliary hooks are independently driven and support simultaneous operations, greatly improving the material flow efficiency within the factory.
2. Box-type double girder structure: The main girder is 2-3 meters high, the web thickness is 16-25 mm, and the overall annealing is performed after welding to eliminate stress, ensuring that the deflection is controlled within L/700 (L is the span) under a rated load of 200 tons. The span can be customized to 18-35 meters according to the size of the plant, covering the full operating range of a large workshop. With the running speed of 80-100m/min for large vehicles and 40-60m/min for small vehicles, it can quickly respond to the lifting needs of different workstations.
3. Comprehensively strengthened: In view of the harsh environment of high temperature, dust and vibration in heavy industry, the equipment is comprehensively strengthened: the main lifting mechanism adopts dual motor drive + planetary gear reducer, with an output torque of more than 10,000N・m, and can withstand an operating temperature of -20℃ to 60℃; the electrical system uses an IP54-level protection frequency conversion control cabinet equipped with an anti-interference device to avoid the influence of the strong electromagnetic environment of the workshop on the control signal. The operation end is set with a linkage console and wireless remote control dual mode, and the main hook lifting speed can be as low as 0.5m/min, realizing millimeter-level alignment of precision parts such as rolling mill arches.
4. Safety protection system builds multiple guarantees: The main hook is equipped with a dual braking system (working brake + safety brake), with a braking response time of ≤0.6 seconds. When the speed is abnormal, the secondary brake is automatically triggered; the lifting weight limiter has an accuracy of ±2%, and the loads of the main and auxiliary hooks are displayed in real time on the operation screen; the trolley running mechanism is equipped with a buffer and an anti-derailment device to adapt to the slight deformation of the track caused by the settlement of the workshop floor. In addition, maintenance platforms and safety passages are set on both sides of the bridge to facilitate daily maintenance and personnel evacuation in emergency situations.