Double Acting Relief Valves Hollow Plunger Compact Hydraulic Jack
Double Acting Relief Valves Hollow Plunger Compact Hydraulic Jack
Introduction of Compact Hydraulic Jack
Double Acting Relief Valves Hollow Plunger Compact Hydraulic Jack combines all the design features of the single-acting and double-acting and the advantages of design, which improves the efficiency. And particularly in relatively long stroke, you can make full use of its role in generating a hydraulic traction.
The jack’s piston center has through hole, widely used in nuclear power plants, tunnels, underground engineering, construction and other occasions, which achieve preload process.What’s more, it can also be applied to other similar situations.
Features of Compact Hydraulic Jack
- Double acting version for fast hydraulic reaction
- Hollow plunger allows for both pull and push forces
- Relief valves prevent damage in case of over-pressurization
- Baked enamel finish for increased corrosion resistance
- Nickle-plated, floating center tube increases product life
- Plunger wiper reduces contamination, extending cylinder life

Designation of Compact Hydraulic Jack
Double Acting Relief Valves Hollow Plunger Compact Hydraulic Jack
| model | pressure @700 bar ton (KN) | stroke(mm) | capacity(ton) | effective area(sq. cm) | oil capacity (cubic cm) | closed height(mm) A | out diameter(mm) D | central hole diameter(mm) Y | weight(kg) | |||
| push | pull | push | pull | push | pull | |||||||
| RRH-307 | 30(326) | 178 | 30 | 23 | 46.6 | 30.4 | 829 | 541 | 330 | 114 | 33.3 | 22 |
| RRH-3010 | 257 | 30 | 23 | 46.6 | 30.4 | 1202 | 781 | 432 | 114 | 33.3 | 27 | |
| RRH-603 | 60(576) | 89 | 60 | 41.8 | 82.2 | 54 | 733 | 481 | 248 | 159 | 53.8 | 28 |
| RRH-606 | 165 | 60 | 41.8 | 82.2 | 54 | 1366 | 891 | 324 | 159 | 53.8 | 35 | |
| RRH-6010 | 257 | 60 | 41.8 | 82.2 | 54 | 2115 | 1388 | 438 | 159 | 53.8 | 46 | |
| RRH-1001 | 100(931) | 38 | 100 | 67.7 | 133.1 | 87.4 | 505 | 332 | 165 | 213 | 79.2 | 39 |
| RRH-1003 | 76 | 100 | 67.7 | 133.1 | 87.4 | 1011 | 664 | 254 | 213 | 79.2 | 61 | |
| RRH-1006 | 152 | 100 | 67.7 | 133.1 | 87.4 | 2035 | 1328 | 342 | 213 | 79.2 | 79 | |
| RRH-10010 | 257 | 100 | 67.7 | 133.1 | 87.4 | 3420 | 2246 | 460 | 213 | 79.2 | 107 | |
| RRH-1508 | 150(1333) | 203 | 150 | 76 | 204.1 | 102.6 | 4144 | 2083 | 349 | 248 | 79.2 | 111 |
Application of compact hydraulic jack
We manufacture different kinds of Hydraulic jack as follows:
Application of hydraulic jack:
Compact Hydraulic Jack
ackaging Detail : Standard wooden cases or plywood
Shipping Detail : in 15 working days after receipt of order conformation
Compact Hydraulic Jack
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