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Double Girder Gantry Crane & 20T Gantry Crane &10T Gantry Crane

The main structure include single-beam and double-beam.we can adjust the technical parameters to meet different clients’ requirements.‘Keeping innovation and pursuing excellence’ are our critical concept. Warmly welcome every friend to our company.

1.Brief Introduction of Double Girder Gantry Crane & 20T Gantry Crane &10T Gantry Crane

Double Girder Gantry Crane & 20T Gantry Crane &10T Gantry Crane is suitable loading and unloading materials in open storagedepots, materials yards, railroad freight stations, and harbor wharf. May also match by many kinds of special-purpose fishing tackles carries on many kinds ofspecial works. The bridge consists from double lying welding structure box.

2.Application of Double Girder Gantry Crane & 20T Gantry Crane &10T Gantry Crane

Double Girder Gantry Crane & 20T Gantry Crane &10T Gantry Crane is applied in outside warehouse , factories and mines ,station and port for loading and unloading or lifting of scrap. As the crane is usually used at outdoor,we design rain-proof equipment above the trolley to protect it and extend service life 

 3.Advantage of Double Girder Gantry Crane & 20T Gantry Crane &10T Gantry Crane :

1. Reasonable structure,

2. Favorable performance,

3. Smooth staring and stopping,

4. Safe and reliable traveling,

5. Low noise, commodious cabin with good view,

6. Convenient maintenance,

 4.Structure of Double Girder Gantry Crane & 20T Gantry Crane &10T Gantry Crane

1.main girder of Double Girder Gantry Crane & 20T Gantry Crane &10T Gantry Crane

 be welded of steel plates with honeycomb hole, connected by high-strength precision bolt. there are sliding rail for trolley to travel upper the girder which is fixed on outrigger by high-tension precision bolt

2.outrigger of Double Girder Gantry Crane & 20T Gantry Crane &10T Gantry Crane

a. consist of rigid outrigger and flexible outrigger, all connection points are connected by high-tension bolt

b. the ladder is used by operator to enter into cab or arriving at winch

c. when the span>30m,there need a flexible leg aiming at reducing the lateral thrust the trolley has to the rail when the girder load objects

3.travelling mechanism of Double Girder Gantry Crane & 20T Gantry Crane &10T Gantry Crane

a. the driving gear box supplys power to realize the crane’s travelling.what the difference between driving gear box and passive wheel box is that passive wheel box lacks transmission structure such as dynamo, reducer and a pair of exposed gear

4. trolley with hoist of Double Girder Gantry Crane & 20T Gantry Crane &10T Gantry Crane

be made up of trolley frame, winch and pulley block

a. trolley frame welded of steel plate  is the loading and travelling mechanism of trolley with hoisting

b. winch is the lifting mechanism of trolley..when it works, wire  rope affects the pulley as rising and falling movement, which makes suspended objects lifting and lowering

Warning: wire ropes need to be examined regularly and changed in time if there is a 10% broken wires, loosen wires and wearing down.

5. Cab of Double Girder Gantry Crane & 20T Gantry Crane &10T Gantry Crane  

a. glass window through which one can watch overall working condition is installed in the front and two sides of the cab

b. Electric cabinet as a group of independent cabinet , fixed outside of cab is connected by control cable and linkage station which is set up in the cab

6. Electrical system of Double Girder Gantry Crane & 20T Gantry Crane &10T Gantry Crane

a. lifting motor, crane travelling motor and hydraulic power motor are included. The whole electrical system is controlled by PLC.

b. Two ways to operate the crane: cab operating and remote controlling.

c. Electric components are imported from Schneider in Germany

7. Platform of Double Girder Gantry Crane & 20T Gantry Crane &10T Gantry Crane

platform is installed in order to maintain the crane,the protective guard is added to protect the safety of servicemen.