Economic Double Action Floor Spring(M730)
The floor spring has the following characteristics:

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 at –45℃                                                                                               
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:150kg 
7.Max door opening angle:105 degree
8.Max door width&height: 1400mm×  2500mm 
9.Dimension of appearance :293×147×58mm                                                                                                                                                 10.Lowest working temperature:–45℃                                                                                                                                                     11.Tested cycles:500,000                                                                                                                                                                                       12.Hold-open at 90?(double action open floor spring)