1.         The wheels of crane crab, main beam and end carriage are produced in our special Vacuum casting workshop (No sand inclusion technique)which makes our wheels more elastic and outer surface hard-wearing and durable.

The upper crab has two main hooks, which are separately fixed at the outside of the girder. stronger hook design.

The lower crab trolley has a main hook and a secondary hook, which are fixed at the center of the  two girders;

Both the upper crab trolley and the lower crab trolley can cross working separately

All operating mechanism employ frequency control, it will make a accurate speed, more efficient to normal work.

On the top of the girder at the side of rigid leg is equipped a jib crane to accomplish maintenance of upper and lower crabs;

And we could also install a wire rope electric hoist to do the maintenance work.

To prevent storm attack, such safe and reliable ant wind devices as rail clamp and ground anchor are furnished