60 Ton Double Girder Gantry Crane

1. Product Introduction:

The Double Girder Gantry Crane with Winch is the basic type in the general gantry crane, on this basis, in order to meet the needs of some large-tonnage gantry cranes, some gantry cranes will be equipped with two sets of lifting mechanisms. That is, two hooks are installed on a lifting mechanism, the main hook and the auxiliary hook, This kind of lifting structure is also known as the mother-child crane.

 

The main hook is the main hook, which has a large lifting capacity and a slow lifting speed. Most of the work of the crane is done by the main hook, especially when lifting heavy materials. After the rated lifting capacity of the auxiliary hook is exceeded, it can only be lifted by the main hook for safety reasons; the auxiliary hook is auxiliary, it can also be used to lift heavy objects alone, the lifting speed is faster than the main hook, it can improve the lifting efficiency of light cargo. This type of gantry crane is generally suitable for loading and unloading and lifting and handling work in busy open-air freight yards and along railway lines. The working level can reach A5~A8.

 

2. Component:

60 ton Double Girder Gantry Crane with Double Trolley Hook is mainly composed of gantry, cart operating mechanism, lifting trolley (double hook) and electrical parts.

The bridge adopts a box-shaped double-girder welded structure and a π-leg welded structure, which not only enhances the overall stiffness and bending resistance, but also increases the working space and facilitates transportation, installation and maintenance;

The operating mechanism of the cart is driven separately and consists of a motor, reducer, brake, wheel set, etc., and is installed at both ends of the bridge.

The trolley is composed of a motor, reducer, brake, wire rope, pulley block, hook, etc., and walks along the track above the main beam.

The electric conduction of the trolley adopts a special-shaped rail cable conduction device;

The cart adopts the sliding contact line type and the cable reel type for selection; the closed air-conditioning operation room is used, and the linkage control table is installed inside.

Electrical equipment uses standardized, universal and serialized parts, which facilitates maintenance and replacement and extends the service life.

 

3. How to choose a double-girder gantry crane

Please refer to the following parameters:

Lifting capacity: 20T, 32T, 50T, 60T, 70T, 80T, 90T, 100T, etc., can be customized according to user needs.

Span: 7M, 8M, 9M, 10M, 12M, 13M, 15M, 19M, 20M, 21M, 22M, 29M, etc. The appropriate span can be selected according to site conditions.

Working level: A5 or A6, able to adapt to higher working frequency and larger load.

Working environment: temperature -25℃～+40℃, relative humidity not exceeding 85%, altitude not exceeding 2000m.

Cart operating speed: 20m/min or 30m/min, frequency conversion speed regulation can be used to achieve smooth lifting and walking.

Trolley running speed: 40m/min or 60m/min, frequency conversion speed regulation can be used to achieve smooth lifting and walking.

The lifting speed of the trolley: 5.9m/min or 7.2m/min. It can adopt variable frequency speed regulation to achieve smooth lifting and walking.

Conductive form: cable or slide wire, the user can choose any one.

 

4. Applicable Environment:

The 60 ton Double Girder Gantry Crane is suitable for the loading and unloading and lifting and transportation of general cargo in railway freight yards, ports, open warehouses and container transfer stations with frequent loading and unloading operations (also suitable for installation in workshops).

 

It can also be equipped with a variety of special spreaders for a variety of special operations, such as magnetic cranes, grab buckets, electromagnetic beams, etc.

5. Transportation process:

(l) Plan the transportation method.

Based on the specific conditions of on-site lifting machinery and vehicle transportation, a practical and effective logistics transportation plan will be formulated.

(2) Design, conceive and manufacture logistics transport racks.

According to the total weight and external dimensions of the 60 ton gantry crane, various types of prefabricated steel or wooden logistics transport frames (support frames) are produced.

The regulations require a simple and clear structure, scientific and reasonable logistics and transportation endurance, relatively stable, low center of gravity, light weight, saving stainless steel plates, and easy and fast assembly and disassembly.

(3) Check the reinforcement during logistics transportation.

According to the requirements for confirmation of the transportation plan, check the crack resistance of the double-girder gantry crane at the most unfavorable cross-section to avoid gaps during transportation. If the crack resistance is not enough, appropriate structural reinforcement should be carried out Processing.

6. Frequently Asked Questions.

How do you ensure your product quality?

All our processes strictly adhere to ISO-9001 procedures, which include Material Traceability, ISO WPQR and welder certificate, Measuring Device Calibration, NDT for the welding, and full assembling and load testing before delivery.

 

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