Today we deliver the double acting hollow hydraulic jack cylinder to our customer. He purchased 2 pcs of double acting cylinder for concrete frame together with electrical hydraulic pump.
Our RRH series of double acting hollow hydraulic cylinder has all the function of general hydraulic jack, and it also has the function of pulling. It also used for tension PC strands, steel wire, axle and drill rod.
1) Double acting design can highly improve the convenience.
2) Built-in safe valve can protect jack when over loading.
3) Cylinder can bear Max loading when Max stroke.
4) High quality seal ring make the jack’s life more long, no oil leakage.
And the below is technical data for your reference.
We have Single acting hydraulic oil pump with jacks, double acting solid hydraulic pump with jacks and QYC front-end hydraulic cylinder for your choice.
If any interest, pls contact me freely.
