China Manufactured Popular Double Girder A Model Mobile Gantry Crane

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China Manufactured Popular Double Girder A Model Mobile Gantry Crane Product Introduction:
1. Double girder A model gantry crane is applied to general materials handling service in outdoor
freight yard, such as loading, unloading, lifting and transferrring work.
2. Three-in-one reducer is adopted for long travel and cross traverse mechanism for easy maintenance.
3. Complete safety measures: wind siren, break-proof shaft, overturn-proof, etc.
4. Double girder A model gantry crane is composed of  gantry crane crab, tralley travelling mechanism,
cab and electric control system.
5. Double girder A model gantry crane is of a box-shape structure, the main girder is bias track double
girder and the leg is devided into A-type and U-type according to clients' requirement.
Product Structure:
1. Main girder of gantry crane
Be welded of steel plates with honeycomb hole, connected by high strength precision bolt.
There is sliding rail for trolley to travel upper the girder which is fixed on outrigger by
high-tension precision bolt.
2. Traveling mechanism of gantry crane
-consists of driving gear box and passive wheel box
- the driving gear box supplies power to finish the crane' travelling.
-What the difference between driving gear box and passive wheel box is that passive
wheel box lacks transmission structure such as dynamo, resucer and a pair of exposed gear.
3. Cabin of gantry crane
- Glass window can make the operator see all the working condition and the cabs installed in
the front and two sides
- As a group of independent cabin, fixed outside of cab is connected by control cable and
linkage station which is set up in the cab.
4. Trolley with gantry crane
- the trolley is assembled with motor, reducer brake, trolley frame, hook, pulley, rain cover and other parts.
- Include lifting mechanism and crossing travelling mechanism.
- the trolley is strictly designed according to the application and working environment.
5. Electric system of gantry crane
- Hoisting motor, long traveling motor and hydraulic power motor are included.
-The whole electric system is controlled by PLC(programmable logic controller).
 -Two operation modes: cabin and remote control.
6. Platform of gantry crane
The platform is installed in order to maintain the crane, and the protecting guard is added to
protect the safety of the staff.