1, the mechanical arm is usually a programmable device composed of a series of joints, similar to a human arm. It can move along multiple axes, so that the end effector of the manipulator can grab, place and rotate. The mechanical arm is mainly used for automatic production, warehousing logistics and medical surgery on the production line.
2. Crane is a kind of large-scale mechanical equipment, which usually consists of one or more booms and lifting systems, and is used to lift and carry heavy objects. Cranes are mainly used in construction sites, ports and docks and other places where heavy objects need to be carried.