300mm DC Dual Chain Window Regulator for Roof Skylight Motor Sash Automatic Electric Twin Chain Window Opener
Here, the Vankesmart opener is a DC twin chain opener with 300mm
For openers with 500/400/600/700/800/900/1000mm stretch length, contact the seller or search in our store.
– Operate the power of the motor: DC24V, 220V motor is optional
-The chain can bend unidirectionally. It stretches out while the window is open and retracts to the opener inside after closing the window
-Double-layer chain, more durable and not easy to break off.
-Equipped with an overload protector and can open and close 20000 times.
-Smart design with strong function.
-Locking force reaches 2000N. Push/Pull force 400/600N.
-Suit for multiple window types
-For bulk purchase (above 100pcs), shells with different colors are available.
-Working speed 9mm/s
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