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Our electric double-chain type open-window machine, using micro-computer chip measuring motor speed,

accurate positioning through the Hall element to ensure accurate synchronization open-window machine, can achieve a very high stroke and multi-motor synchronization,

an avoid the original circuit malfunction that it cuts off the power supply and can not close a window completely which cause by the small current when close the window. This technology has been patented and leads.

MD500 motor series
Volltage: 220V-50HzAC 24VDC
Current: 0.2-1.2A
Weight: 1-5KG
Hub: 100-600mm (according to customers needs)
Kraft: 1000N
Speed: 10mm/s
Operating temperature:-40°C+85°C
Degree of protection: IP32
Operating life: reciprocate 10000 times
Application rage: side-hinged swinging window
Note: It may realize different windows with multiple series and the name window connecting many as well as fire-fighting united