Single Girder and Double Girder Gantry Crane

The main mechanism is the gantry frame, lifting mechanism, trolley running mechanism, trolley running mechanism, special spreader beam, safety device, and so on.
According to the structural form of the main girder, the gantry crane is mainly divided into single girder and double girder gantry crane

The main girder structure generally has truss type and box type main girder:

1. Truss main girder generally uses Angle steel or I-steel welded structure form, with low cost, lightweight, good wind resistance, and other advantages. However, due to the defects of many welding points and the truss itself, the truss main girder also has the disadvantages of large deflection, small stiffness, relatively low reliability, and frequent detection of solder joints. It is suitable for the site with low safety requirements and small lifting weight.

2. Box main girder is welded into box structure with steel plate, which has the characteristics of high safety and high stiffness. Generally used for large and large tonnage gantry cranes. Box main girder also has a high cost, weight, poor wind resistance, and other shortcomings.

Product Features：

The main product features of the knuckle boom crane are as follows：
The steel structure is designed and verified by finite element analysis method with reliable and stable
Safety devices for lifting mechanism and operating mechanism
Using international brand electrical parts, safety, long service life, reduce customer maintenance costs
Factory preassembly, site installation is convenient and efficient, saving time

Product Parameters：

Product parameters take 20ton-25m double girder gantry crane as an example：

After-sales service:

Mainly provide after-sales service
1. Online and on-site installation guidance
2. Detailed installation scheme and documents required for installation
3. Maintenance manual for motor and reducer, etc
4. Online and on-site operation training