通过检测吸盘或助力机械手末端夹具和平衡气缸内气体压力，能自动化机械手手臂上有无载荷，并经气动逻辑控制回路自动调整平衡气缸内的气压，达到自动平衡的目的。工作时，重物犹如悬浮在空中，可避免产品对接时的碰撞。在机械手臂的工作范围内，操作人员可将其前后左右上下轻松移动到任何位置，人员本身可轻松操作。同时，气动回路还有防止误操作掉物和失压保护等连锁保护功能。非常重要的一点是，气动平衡吊整机无须电控系统，只需压缩空气和真空源视工作情况即可工作，非常方便。

  By detecting the end fixture of suction cup or assist manipulator and balancing the gas pressure in the cylinder, it can automatically check whether there is load on the manipulator arm, and automatically adjust the air pressure in the cylinder through the pneumatic logic control circuit to achieve the purpose of automatic balance. When working, the heavy objects are suspended in the air, which can avoid the collision of products when docking. Within the working range of the manipulator, the operator can easily move it to any position, and the operator can operate it easily. At the same time, the pneumatic circuit also has interlock protection functions such as protection against misoperation and loss of pressure. It is very important that the pneumatic balance crane does not need an electric control system, only needs compressed air and vacuum source, depending on the working conditions, it is very convenient.