Gantry crane for concrete plate yard

Gantry Crane main Feature:

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)Advantages

1. Honeycomb-girder (patented product) is first-made by Huazhong which enjoys a good fame in industry inside and outside

2. Light self-weight, large load, high wind-resistance and high rigidity, low deflection, so it is quite safe

3.Flexible legs, easy to transfer to another site

4. Reliable and unique pin connection, short-time installation

5. Lift objects easily by using winch

6. Imported and high-quality electronic components also ensure the safety of hand operation

7. Frequency-converter can be added to meet customers’ need

(2) Introduction of honeycomb girder

1. Unique and new structure

a. Triangle end face

b. honeycomb hole in two sides inclined plate

c. chord member on top and bottom

d. connecting pin on junction

2. convenient to use and install

3. save materials

4. small windage area, high stiffness and transverse module, large bearing capacity

(3) Background to develop honeycomb girder

1. Box-type girder: large load, quadrangle end face, large windage area, but unsafe in field work and working high above the ground 

2. Truss girder has lighter self-weight than box-type girder, small windage area but low stiffness and overall stability. if one of the connection points goes wrong, the entire girder will be in trouble which leads to unsafe construction and quality un-guaranteed

3.The new-style honeycomb girder developed by our company solves the problem above, and “ isosceles triangle honeycomb girder” wins the patented product

(4)structure of the crane

1.main girder

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

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

consist of driving gear box and passive wheel box

a.     the driving gear box supplys power to realize the crane’s travellingb.     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

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

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

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

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

(5) After-sale service

1.One year warranty for whole machines.

2.Low charge for continue maintenance when warranty is expired.

3.Exclusive support engineer.

4.We can provide the free training to end-users.

Technical prameters (Some Samples)

                     The Sketch of Honeycomb Girder                                                           Winch with Steel Rope

Company Profile

                                 Workshop                                                                                                R&D Center

                                   Factory                                                                                                General Manager

Manufacturing Process:

                   Computer Monitoring                                                                               Engineers's Communication

Certificate:

                                ISO Certificate                                                                                    Export License

                          Manufacture License                                                                   Trade Mark Registration License