This single girder bridge crane is a Chinese national standard bridge crane which is travelling on two parallel rails and lifting mechanisms travel across girder. Chinese single girder bridge crane is composed of main girder, end beam, long traveling mechanism, across traveling mechanism (electric hoist) and electrical components. This crane is usually employed for long distance workshops and traveling along the rails on both sidewalls.  

 

 

The Chinese single girder bridge crane is a single girder type crane with traditional I beam or box-typed girder. The lifting weight is usually not more than 20t. This crane can be fitted on steel plants, hydro-power stations, warehouses and workshops etc.

 

 

Mechanisms:

1. Rigid box-typed beam;

2. Shot blasting for the whole structure body after welding and releasing internal stresses;

3. Painting epoxy zinc-rich primer and painting, and the thickness of oil film is 140μm;

4. Main beam and end beams are connected by 10.9 degree high-strength bolts;

5. Driven by electric reducer or traditional LD drive system;

6. Running smoothly, brake efficiently, long service life;

 

 

Electric System:

1. Power supply through steeples slide line;

2. The crane and hoist are 2 mutually independent mechanisms and could travel at the same time;

3. Etch-proof control handle with protection degree of IP54;

4. Power cable is suspended in cable trolley which slides flexibly and smoothly on a C-type steel;

 

 

Safety Protection Devices:

Overload limiter, limit switch (lifting and travelling), interlocking protection device, buffer, rail clear plate, shield, protection plate, anti-collision device, main disconnecting switch, emergency brake system and motor overload protection device. 

 

 

Pendant