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:250kg                                                                                                                                                                            7.Max door opening angle:105  degree      
8.Max door width& height:1500mm×3200mm                                                                                                                                                     9.Dimension of appearance :338×110×56mm                                                                                                                                                 10.Lowest working temperature:–45℃                                                                                                                                                     11.Tested cycles:500,000  
 12.Hold-open at 90?(double action open floor spring)