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High Speed Spiral Door

Issue time:2018-04-12
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LFT-HSD aluminium alloy spiral door is a type of innovative industrial door, which combines high-speed, energy-saving, good-sealing, high-efficiency, wind-proof, and environmental protection together, and also famous for its high reliability and practicability. 


Our LFT-HSD spiral doors win great reputation for its high-speed operation against Strong convective wind pressure, furthermore, its unique mechanical design can lower the fault rate into 99.99%. LFT-HSD turbine metal rolling door not only guard against illegal incursion from the outsiders, but also protect the inside from variable weather, and cut off the air convection from indoor and outdoor. 


Nowadays they are used widely in fast exit with frequent access, and become an ideal choice for energy-saving and high efficiency. 

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 Why choose Lefast? Please see the comparison with other suppliers:

  1. We adopt 6mm hinge, which come from well-known Nanshan aluminum, vs. others - only 3mm unknown brand aluminum.

  2. Lefast control box and motor,famous for its stable quality, easy operation, accurate orientation and fast feedback, it’s also equipped with manual function in case of power cut or any failure.

  3. Infrared radiation design, it will stay opening when there are objects below the door.

  4. Lefast’s decelerator is good at high efficiency, small resistance, long lifetime and low noise

  5. Double-corkscrew turbine layout, which good at its stability and safety, others use single corkscrew turbo.    

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