Chain is generally metal chain ring, mostly used as mechanical transmission or transmission torque, with the development of society, window pusher as an important part of ventilation and air exchange home automation is widely used, the current window pusher has a variety of, chain type window opener because of simple and beautiful and has been used most, The structure of the chain window pusher is characterized by the vertical extension and retraction of the chain to complete the action of opening and closing the window. When the window chain is pushing the window door, the pressure is received. It requires that it will not bend like other chains and can always stay straight.

At present, most of the window with anti-bending chain, basically using the common chain structure, including: inner chain plate, outer chain plate, sleeve, roller and pin shaft; The sleeve is arranged on the outside of the pin shaft, and the sleeve and the pin shaft are connected by sleeve mode; The roller is arranged on the outside of the sleeve, and the roller and the sleeve are connected by the sleeve way; The inner chain plate is arranged on both sides of the roller, and the inner chain plate and the sleeve are connected by interference mode; The outer chain plate is arranged on one side of the inner chain plate, and the outer chain plate is connected with the inner chain plate through the pin shaft.

We offer stainless steel and carbon steel chains, and chains with different surface coatings such as nickel-plated, zinc-plated, dacromet, etc...