ALD630B Floor Spring


Maximum single-action open angle is 116°, with 90°auto-stop fitting.  Stop angle can be made according to client’s demand.

The Screw for cover is easy for installation, easier and more convenient due to unique structure

adjusting valves of two section speed control can regulate door’s closing speed, 90-25degress and 25-0degrees respectively.

Constant temperature device assure steady closing speed under big difference in temperature.

Built-in decompressing valve to prevent the damage from shutting in strong press and strong wind.

Passed 500,000 times’ opening-closing test



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