、Rack and pinion design, stable functioning;
2、Double cylinder structure, double output could be achieved;
3、The manufacturing precision of working platform is high, and is easy for installation , and is of precise orientation;
4、The center of working platform has a through hole, and pipe can be located and passed through this hole;
5、Two sides of cylinder have orientation holes, to facilitate installation;
6、Two modes of buffer could be chosen, adjustment bolt buffer and internal shock absorber, the maximum buffer energy of internal shock absorber is 3-5 times that of adjustment bolt buffer.