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◆ The rack is made of high quality carbon steel, strong thrusting, stable running. Especially suitable for various smoke         exhaust ventilation window &skylights.

◆ Designed life: more than 30000 times push-pull cycles.

◆ Terminals built-in, convenient for fire control wiring.

◆ Overload protection circuits built-in, linkage of multi-machines.

◆ Protection class: IP54.

◆ The best choice for skylight, and can be used for daily natural ventilation.

◆ The stroke can be customized according to customer requirements.

◆ In conformity with GB/T 19001-2008, passed the CE &CCCF certification.