HSD 650S

Its doesn’t need drill a deep hole when installing this floor spring,more  convenient to install,due to its super-thin design and the body of floor spring being merely 40mm high.

The cover board is punched directly to the body of floor spring ,making its spindle more perpendicular,making sure operation more steaty.

   This floor spring can be regulated 6mm in left or right,6mm in front or back,4mm in top or bottom respectively according to glass door’s perpendicular,±4°degree adjustment is possible in zero position aligning.  

   It can be used in double direction of door, maximum single-action open angle is 130°-90°hold-point is available and no-hold-point is also available if demanded.

   Adjusting valves of  two section speed  comtrol can regulate door’s closing speed, 90°-25°and 25°-0°respectively.

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

  Built-in pressure-relief device can  prevent  door or floor spring from damage in case of extreme exterior pressure or strong  wind.

   Passed  500,000 times’ opening-closing test.