... include rail cutter, rail grinder, rail drilling machine, track lifting and lining machine, railway ballast tamper, railway bolt wrench, rail ... adjustment rail joint operation Feature:The machine has push and pull small rail joint two functions, pushing rail, rail pulling ... pull, push rail force: 400 kn2. Oil cylinder piston operating stroke :140 mm3. Rated pressure :52 mpa4. Light efficiency :>= ...