The front-end type jack is a kind of multipurpose prestressing equipment. It is easy to operate. It is mainly used to stretch single strand or tendon. It is also used for multi-hole pretension, stretch and debug. It is suit for all kinds of high strength steel wire bundles and strands.
| Item|| Nominal pressure|| Nominal hydraulic|| Area of stressing cylinder||Return hydraulic ||troke of stressing ||Diameter of minumum center hole || Overall dimension|| Mass||Minimum working space || The reserved length of strand|
| Unit|| KN|| Mpa|| mm²||Mpa ||mm ||mm ||mm ||kg ||mm ||mm |
| QYC270|| 270||62 ||4400 ||< 10 ||200 ||Φ 17 || Φ 114× 529|| 25|| 750× 110|| 220|