GQ3t-100t slewing bearing fixed crane is used for small and medium-sized docks in Hanoi and ports, as well as for storage yards, loading and unloading of general cargo on stacks or barges. This model is a single arm frame type, with steel wire rope amplitude variation and multiple pulley compensation. The cargo can be horizontally displaced, so it can also be fully loaded with amplitude variation, resulting in high operational efficiency. This model can achieve 360 ° full rotation, and the rotating support adopts a four point contact single row bearing for smooth operation. This machine is designed and manufactured in accordance with the "GB3811-2008 Crane Design Specification" and the "GB6067-2010 Crane Machinery Safety Regulations". The working characteristics of some lifting equipment are intermittent movement, that is, the corresponding mechanisms for picking up, transporting, unloading and other actions work alternately in one job. The development and use of cranes in the market are increasing. Due to the frequent occurrence of accidents when lifting and traveling without legs, the driving speed is relatively fast, the operation is stable, the lifting capacity is large, and it can be lifted and walked within a specific range, but the road is flat and solid, the tire pressure meets the requirements, and the lifting distance from the ground should not exceed 50cm. Long distance walking with load is prohibited.