1  Use material of high hardness; Suitable for different machines of 4-45ton.

2  Use security device with hydraulic control valve to ensure the safety.

can be used on excavator to change the accessories ( such as bucket, breaker, shear, etc) easily and quickly, which has enlarged the use scope of the excavators and saved a lot of time. Can change the accessories without disassembling the pin and axle, Thus realize faster installation