When it occurs, it might damage the equipment or make people injured. The newly invention of asynchronous protector is made to prevent the accident. This cylinder is fully controlled by electrical signal with a set of feedback device built in. The cylinders run in precise synchronization with each other when their control signals are synchronized. The number of cylinders are not limited.
Individual cylinder can have independent trim.
The existing flow control valve has only the function of one direction flow control. In order to obtain the bi-directional flow control, it needs to install two flow control valves or use check valves to form bridge rectifier. This increases the cost and brings the trouble of connection of pipeline. With only one bi-directional valve, user can set the forth and back speeds at any value. It has been a difficult problem to on-line monitor the flow in hydraulic system.