Spring pins, also known as limit pins, are suitable for scraper conveyors for underground coal mines and scraper transfer machines for smooth grooves. They are used in conjunction with clamping blocks and dumbbell pins for connection between the middle grooves of scraper conveyors. The function of the spring pin is to prevent the backward of the block. The function of the block is to prevent the rotation of the dumbbell pin. The role of the dumbbell pin is to ensure the smooth connection of the middle groove and prevent lateral movement.
ZX-03 spring pin is used in conjunction with ZX-02 card block and ZX-01 dumbbell pin.