L gantry crane is mainly composed of gantry,crane crab,trolley travelling mechanism,cab and electric control system.

The gantry is of a box-shape strycture.The crab adopts vertical reaction wheel when the lifting load is below 20t,and horizontal reaction wheel when above 20t to run at the girder side.The girder is of single-girder bias track and the leg is L-shaped,so that the lifting space is large and the spanning ability is strong,making it easy to covey articles from the span to under the jib.

The closed cab is employed for operation,where there are adjustable seat,insulating mat on the floor,toughened glass for the window,fire extinguisher,electric fan and auxiliary equipment such as conditioner,acoustic alarm and interphone which can be furnished as required by users.