Portable Hydraulic Power Units for all hydraulic tools.
Powerful hydraulic tools require reliable power sources. In cooperation with MAN Diesel, Wärtsilä and 2-stroke engine owners worldwide, Chris-Marine has developed a range of mobile Hydraulic Power Units HPU delivering up to 5 times the normal speed when needed, while fulfilling the requirement for pressures above 3000 bar.
An HPU unit from Chris-Marine can loosen a cylinder cover on the world’s largest diesel engines in less than five minutes. The HPUs are not only suitable for closed-circuit tools, but can also be used for floating of camshafts as well as opening of SKF couplings. Special operation modes make it possible to operate several types of tool series safely with one unit only.
Pneumatic-hydraulic power supply for hydraulic tools
| HPU 1500 Compact | HPU 1500 | HPU 1500-2 | HPU 2250 | HPU 2250S | HPU 2250-2S | HPU 2800-3 | HPU 3500-3 | HPU 3500 W | HPU 3500-3 | |
|---|---|---|---|---|---|---|---|---|---|---|
| Drive medium | Air | Air/Hand | Air/Hand | Air | Air | Air | Air | Air | Air | Air |
| Multipurpose (incl fuel injector test) | — | — | X | — | — | — | — | — | — | — |
| Pump technology | Single | Single | Single | Single | Twin | Single | Twin | Double acting | Double acting | Twin |
| Pneumatic inlet pressure (bar) | 0-10 | 0-10 | 0-10 | 0-10 | 0-10 | 0-10 | 0-10 | 0-10 | 0-10 | 0-10 |
| Hydraulic pressure (bar) Output@ Input | 1500@7 | 1500@7 1000@4.6 | 1500@7 1000@4.5 | 2000@7 1700@6 1400@5 | 2000@7 1700@6 1400@5 | 2000@7 1700@6 1400@5 | 2250@8 | 2200@5 2600@6 3000@5 | 2200@5 2600@6 3000@5 | 3300@10 |
| Standard safety valve setting (bar) | 1500 | 1050/1450 (adjustable) | 1450 | 1750-2050 (adjustable) | 2050 | 2050 | 2050 | 2650 | 2650 | 3000 |
| Hydraulic flow @ no output pressure (l/min) | 0.25 | 0.3 | 0.45 | 0.5 | 1.9 | 0.45 | 1.9 | 0.8 | 0.8 | 2 |
| Air consumption @ 0 bar (l/min) | — | 300-1050 | 300-1050 | 300-1050 | 300-1050 | 300-1050 | 300-1050 | up to 2500 | up to 2500 | 300-1050 |
| Hydraulic gauge (bar/160 MPa, class 1.0, Ø 160) | 1600 Ø100 | 1600 | 1600 | 2500 | 2500 | 2500 | 2500 | 4000 (optional 3000) | 4000 (optional 4000) | 4000 |
| Pneumatic inlet | 1/4” BSP female | 1/2” BSP female (ISO-228-1-G-1/2), adapter for reduction to 1/4” BSP included | 1/2” BSP female (ISO-228-1-G-1/2) | |||||||
| Hydraulic outlet | CEJN 116 male incl | 1/4” BSP female (ISO-228-G-1/4), adapter CEJN 125 male incl | ||||||||
| Weight (kg) | 8 | 16 | 20 | 20 | 28 | 23 | 28 | 33.5 | 33.5 | 28 |
| Dimension (LxWxH mm) | 450x100x175 | 340 x 256 x 380 | 380 x 360 x 380 | 380 x 360 x 380 | 440 x 330 x 400 | 440 x 330 x 400 | 440 x 330 x 400 | 460 x 330 x 400 | 460 x 330 x 400 | 440 x 330 x 400 |
| Typical engine/tool (smallest HPU) | MAN 4-stroke Generel 4-stroke | MAN ≤60 MC Wärtsilä RND MAN gensets Wärtsilä 4 str. engs Rolls-Royce Bergen Mitsubishi UEC Himsen | MAN ≥70 MC Sulzer Z-series | MAN MCC | MAN ≥70 MCC | RTA ≤72 RTA Flex ≤72 | RTA ≥84 RTA Flex ≥84 | MAN ME engines Workshop | Workshop MAN ME engines Workshop | Workshop |
