There are many types of gantry cranes and MG type gantry crane is with double girder, box frame and electric trolley. It is mainly used for lifting heavy material. MG box type double girder gantry crane is suitable for railway freight yards, ports, open warehouses, container transfer stations, etc. with large span and frequent loading and unloading operations. The machine adopts a U-shaped gantry with a large clearance (nearly 7 meters) over its legs, which is suitable for handling long and bulky goods and containers. The machine has two types of conductive forms: sliding contact wire and cable. The sliding contact wire form is preferred, and the conductive form and position should be clear when operating.

Product Features

1. Crane material: Q235, Q345B/Q345D

2. Strong box type, no-welding joint strong box type, by machine hand, strong and beautiful.

3. Wheels are vacuum casting by ourselves, intermediate frequency quenching.

4. Wheels, wire rope, drum, gears, coupling are manufactured by us

5. Electrical equipment: Siemens or Schneider brand.

7. Control method: Cabin control, wireless remote control or pendant control.

Product Parameters

Selection principles

Generally speaking, if the lifting capacity is below 50 ton, the span within 35 meters, and there are no special usage requirements, the single main beam type should be selected. If you require a large door leg width, a high working speed, or if you often lift heavy or long items, you should choose a double-girder gantry crane.

The span of a gantry crane is an important factor affecting the quality of the crane itself. During selection, the span should be minimized as much as possible on the premise of meeting the equipment usage conditions and complying with the span series standards.

Principles for determining wheelbase

(a) It can meet the stability requirements of the mast along the direction of the crane track;

(b) The overall dimensions of the cargo must be able to pass through the flat steel frame of the outriggers smoothly;

(c) Pay attention to making the wheel base B and the span S have a certain proportional relationship. Generally, the wheel base B = (1/4-1/6) S.

During work, a certain space should be left between the external dimensions of the gantry crane and the cargo and transport vehicle passages in the yard to facilitate loading and unloading operations. When loading and unloading general transport vehicles within the span, they should maintain a distance of more than 0.7 m from the door legs. When the spreader is not working, there should be a distance of more than 0.5 m from the transport vehicle. When the goods pass through the door legs, there should be a distance of more than 0.5 m.

Our gantry crane is high quality and safety with good working efficiency and long service life. AIDA Machinery has provided many clients in the world with our qualified customized design gantry cranes with trolley. Also we have very considerable after-sale service, 5 years warranty, free spare parts, site installation service and online guidance.

For more details, you are welcome to contact us anytime and get quote.