Professional garage door hardware manufacturer in China for 13years    

The garage door safety device has two types: spring break device and bottom safety device.

The spring break device has the function of protection and absorbs the force of any cable break! 1'' bore spring break protection device uses 2'', 2 5/8'',3'' spring fitting.

The bottom safety device is also called the wire rope break protection device. When the power is off, it can prevent the door from falling. The device is suitable for 2’’/3’’ track and the advised max door weight is 750kg.

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