Chain type window openers are increasingly being used in various special fields, such as at the top of airport terminals and large swimming pools where manual window opening is not possible but ventilation is required in buildings. More and more applications are being used in high-rise buildings, not only for daily opening and closing of windows, but also for special missions. For example, in the event of a fire or other disaster, building managers can achieve one click opening of windows to quickly exhaust toxic smoke, which will greatly reduce the risk of casualties. The chain is a key component in the window opener. The reliability and service life requirements for window opener chains are far greater than those for industrial chains.

Since 2014, we have introduced the technology of automotive engine chains into the research and development of window opener chains, and conducted a large number of simulation experiments. With rich technical accumulation and exquisite manufacturing skills, the Eternal Window Machine Chain has quickly gained market recognition for its high precision, long life, and corrosion resistance. Eternal Group has become a chain supplier for many window machine enterprises in China and Europe.

We offer a full range of window opener chains from pitch 8.0mm to 19.05mm, including stainless steel and carbon steel chains, as well as chains treated with different surface coatings such as galvanized, nickel plated, Dacromet, Super Zinc, etc.