Hydraulic support pin shaft is usually used for the joint of two parts to form a hinge connection.Hydraulic support pin shaft according to different functions can be divided into the following types: The main function of the fixed pin is to connect various components together. This type of hydraulic support pin shaft as a shaft, one end has a baffle, the other end of the washer and open pin, has the role of connection fixed. Rotary shaft is a rotary hydraulic support pin shaft, mainly used to connect the hydraulic support anti-reverse jack. The horizontal pin is mainly used for the connection between the scraper conveyor and the hydraulic support connector. The vertical pin is used for the connection between the push rod and the connector. The lock pin is mainly used to fix and connect the side push jack and the side guard plate. Henan Shuangzhi coal machine production of hydraulic support accessories (guard plate, bed frame, rear slide connecting head, push rod, pin shaft, oil cylinder, etc.), scraper conveyor accessories (sprocket shaft group, scraper bolt, dumbbell pin, tooth rail, guard plate, chain shifter, etc.) welcome to inquire.