Henan Dowell Crane Co., Ltd.
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The Double Girder Overhead Crane is a lifting equipment that is horizontally framed over the workshop, warehouse and material yard for lifting and transporting materials. Bridge crane is installed on the crane beams on both sides of the height of the plant, and the whole equipment can run horizontally on the tracks laid on the crane beam. The hook and the electric hoist are used for lifting motion to complete the lifting and moving of heavy objects.
The double girder overhead crane are widely used in warehouses, factories, docks, hydropower stations, etc.
Technical design base of double girder overhead crane
1. Loading Capacity: According to weight of lifting load, working environment, plant structure load capacity, crane wheel pressure and so on. Our double girder overhead crane can be designed up to 500t capacity.
2. Span: According to distance between runways or columns in workshop, our engneers can derive specific technical scheme. Further more, if customer can provide layout of the plant, our engineer will offer precise and economic solution. Generally, span of crane can be up to 31.5m and available for customized span.
3. Lifting height: According to distance from roof top to ground in workshop, our engneers can confirm lifting height needed. Also, height from roof top to runway will be very important for installation. If customer can provide drawing of the plant section, we can find better choice for you.
| Lifting capacity(t) | 2 | 5 | 7.5 | 10 | 15 | 20 | 25 | 32 | 50 | |
| Span(m) | 8-35 | |||||||||
| Max lifting height(m) | 20 | 14 | 18 | 14 | ||||||
| Main lifting speed(m/min) | A5 | 12.6 | 12.6 | 8.5 | 8.5 | 7.9 | 7.2 | 8.5 | 7.5 | 5.9 |
| A6 | 15.6 | 15.6 | 13.3 | 15.6 | 13.3 | 13 | 12.5 | 9.5 | 7.8 | |
| Trolley travelling speed(m/min) | 37.2 | 37.2 | 43.8 | 37.2 | 43.8 | 44.6 | 44.6 | 42.4 | 38.5 | |
| Main lifting motor(m/min) | a5 | 13 | 13 | 17 | 13 | 17 | 26 | 26 | 42 | 55 |
| q6 | 15 | 15 | 22 | 15 | 22 | 37 | 45 | 55 | 75 | |
| Trolley motor(kW) | 2.5 | 2.5 | 2.5 | 1.8 | 2.2 | 3.7 | 3.7 | 5.5 | 7.5 | |
| Work duty | A5-A6 | |||||||||
| Power supply | AC 220-690V,50Hz | |||||||||