20ton Double Girder Electric Overhead Travelling Crane With CD MD Hoist
20 Ton Double Girder Electric Overhead Travelling Crane With CD MD Hoist
Electric Hoist Double Girder Overhead Crane Introduction
LH type electric hoist double-girder bridge crane: This type of hoist bridge crane has the characteristics of small size, low building headroom, light weight, and low procurement cost. Greater lifting height. Generally, the lifting capacity is 3-50t, the span is 10.5-31.5m, the working grade is A3, and the working environment temperature is -20℃～40℃. Modes of operation include ground wired handle, ground wireless remote control, cab operation and a combination of the two provide excellent ride characteristics, minimizing wear and tear on the end beam and crane runway. Every crane and every crane component provides you with the guarantee of high quality, high efficiency and reliability.
Electric Hoist Double Girder Overhead Crane Specification
| Lifting capacity | ton | 5 | 10/3 | 16/3 | 20/5 | 32/5 | |
| Workingclass (ISO/FEM) |
/ | A3-A4 | |||||
| Span | m | 7.5-31.5 | |||||
| Lifting height | m | 6/9/12 | |||||
| Lifting speed | Main hook | m/min | 8(8/0.8) | 7(7/0.7) | 3.5(3.5/0.35) | 4.2(4.2/0.42) | 3(3/0.3) |
| Aux. hook | m/min | / | 8(8/0.8) | 8(8/0.8) | 8(8/0.8) | 8(8/0.8) | |
| Travelling speed | Trolley | m/min | 20 | 20 | 20 | 20 | 20 |
| Crane | m/min | 20 | 20 | 20 | 21 | 21 | |
| Crane weight | kg | 4500-17600 | 5800-22500 | 6800-26100 | 9500-28000 | 11600-25500 | |
| Total power | KW | 10.7-12.1 | 17.6 | 23.5-24.9 | 32-33.4 | 36.4 | |
| Max. wheel pressure | KN | 34-70 | 60.5-108.5 | 87.5-150 | 110.5-173 | 159-223 | |
| Steel rail recommended | P30 | P30 | P30 | P38 | P43 | ||
| Power supply | 3AC 220V~480V 50/60Hz | ||||||
Electric Hoist Double Girder Overhead Crane Design Diagram
Features of electric hoist double girder overhead crane
- The double girder structure makes the overhead crane bridge have enough strength, rigidity and stability.
- The design of the middle rail box girder of the double-girder bridge crane fully meets the requirements of strength, stiffness and stability.
- The end girder of the double girder bridge crane has a simple design and structure, and can be easily installed with the main girder through high-strength bolts.
- The hoisting mechanism of the double girder overhead crane adopts CD or MD high-quality wire rope electric hoist.
- The double-girder bridge crane adopts a weak current soft-start motor. Ground controls are also available in conjunction with double girder overhead traveling cranes.
- The dual-motor independent drive device is used to reduce the wear and tear of the rail and reduce the possibility of failures such as wheel climbing.
- The motor of the double-girder bridge crane is directly controlled by the contactor, which can realize single-speed, double-speed and reversing control of the motor.
- The frequency converter is used on the double-girder bridge crane to change the frequency and voltage of the motor power supply to realize the function of speed control of the motor.
- The double-girder bridge crane adopts multiple safety protection systems, including short-circuit protection, no-voltage protection, emergency power-off switch protection, overload limit protection, travel limit protection, zero-sum chain protection, and grounding protection.
Electric Hoist Double Girder Overhead Crane Details
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