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Good Craftsmanship Box Type Double Girder Gantry Crane 5T To 300T
Double Girder Gantry Crane Structure:
The electric double-girder gantry crane is composed of cart running mechanism, lower beam, outriggers, driver's cab, main beam, trolley running mechanism, hoisting mechanism, escalator, electrical appliances and other components:
1. Cart running mechanism
It is mainly composed of a lower beam and a trolley, of which the trolley is composed of a driving wheel group and a driven wheel group. The running mechanism includes a motor, a reducer, a gear, and a wheel group.
2. Outriggers
The section steel is used as the material, and then welded into a cage-shaped mechanism, the lower end is connected with the lower beam, and the upper end is connected with the main beam bolts through flanges.
3. Cab
The skeleton is made of profiled steel, the outer shell is welded on the skeleton with thin steel plates, the driver's cab is closed with broken lines, and the electrical appliances, power distribution cabinets and lines of the operating mechanism are generally located in the driver's cab.
4. Main beam
The section steel and the steel plate are welded, generally welded into a truss triangle. On the main beam, there are also trolley running rails.
5. Trolley running mechanism
The main components are similar to the running mechanism of the cart. The motor is driven by the reducer, and the pinion on the reducer is then transmitted to the large gear, so that the cart can travel back and forth.
6. Lifting mechanism
It is installed on the trolley frame, and the lifting movement is realized through the hoist and the matching fixed pulley, movable pulley or hook.
Double Girder Gantry Crane Features:
1. Low noise, commodious cabin and good view.
2. Safe and reliable traveling.
3. Reasonable structure.
5. Smooth starting and stopping.
6. Saves electricity specifications.
7. Convenient maintenance.
8. Excellent exchangeability for parts.
9. Overload limiter, Limit switch (lifting and traveling), Interlock protection device, Buffer, Overhaul cage, Rail clear plate, Protective cover, Bus bar preventer plate, Anticollision device, Main isolating switch, Emergency stop system, Motor overload protection and so on .
Double Girder Gantry Crane Technical Parameter:
| Capacity | Ton | 5~300 |
| Span | m | 12 〜35 |
| Lifting height | m | 6〜12 |
| Lifting speed | m/min | 2~15 |
| Travelling speed | m/min | 20~60 |
| Drive type | Motor driven for all motions | |
| Duty Class | A3~A6 | |
| Power source | 380V； 50HZ, 3 phase (or other standard) | |
| Working temperature | -20 〜40℃ | |
| Control model | Pendant pushbutton control or remote control or cabin control | |
Advantages:
1. Module control speed, micro-speed and double speed;
2. Traveling and lifting smoothly;
3. The power for trolley moving adopts flat cable, sliding smoothly;
4. Control box layout is reasonable, easy to repair;
5. Protection class IP55;
6. Optional main power source ;
7. All external cable line number with mark;
8. Safety smooth touch line, high conductivity, small pressure drop;
9. Light weight, installation convenience;
10. Set electric taxi speed is high, ensure continuing power supply;
11. Optional speed control module, and can realize the micro speed and double speed.
How to choose:
1. Selection of gantry crane
2. Span and cantilever length
3. The principle of determining the wheelbase
4. The gantry crane spacing size is determined
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