The specification of the beam lifting crane is as follows: Lifting Capacity: 20-900 tons Span:10–40 meters (can be customized) Lifting Height: 6–20 meters Travel Speed: 7 m/min Working Class: A3 Dejun is a professional crane manufacturer in China. Besides the beam lifting crane, we also produce overhead cranes, jib cranes, and gantry cranes etc. Any needs, please feel free to contact us!