The economic double action floor spring like dorma bts84(1800-2)

Key Attributes.

1.Surface Paint:No painting peel off 2.We have passed five different test process(such as pressure-relieving processing) to prevent the oil spill. Leak rate:0.3% 3.Unpack Passed Rate:99% 4.We use the hydraulic oil with Anti-fire, Anti-burning, Anti-freezing,could be operated at45? 5.The main parts of the machine core have been done the heat treatment processing,it can prolong the working life. 6.Max door capacity:120kg 7.Max door opening angle:105° 8.Max door width& height:1200mm×2400mm 9.Dimension of appearance :324×130×40mm 10.Lowest working temperature:–45? 11.Tested cycles:500,000 12.Hold-open at 90°(double action open floor spring) 13.Cement box :1.5mm thickness