Screw jack belongs to mechanical principle, by pulling the handle reciprocate, claw will drive the ratchet clearance rotate, small bevel gear drive big bevel gear, make lifting screw rotating, lifting sleevelifting or falling, so as to achieve the function of lifting force.
Screw jack belongs to mechanical principle, by pulling the handle reciprocate, claw will drive the ratchet clearance rotate, small bevel gear drive big bevel gear, make lifting screw rotating, lifting sleevelifting or falling, so as to achieve the function of lifting force.
Our main products include explosion-proof chain hoists, explosion-proof electric hoists, explosion-proof lever hoists HSZ explosion-proof chain hoists, HSC explosion-proof chain hoists, explosion-proof lifting tools, etc. The product quality is excellent and the user evaluation is high!