kNm Hydraulikk as
Norwegian (Bokmål) 
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DOUBLE-ACTING HOLLOW PLUNGER CYLINDERS -RARH

Enerpac hydraulic cylinders are used for lifting projects across a wide range of industries – including construction, manufacture, mining and offshore industries. Each project presents different challenges and no single cylinder can suit every job. Many projects require a high level of control and the positioning of cylinders in hard to reach areas. 

Call us on +47 952 51 310 to find out if RAHR double-acting hollow plunge cylinders can suit your application.
CAPACITY

30 - 150 TON

STROKE

50 - 250 mm

MAX PRESSURE

700 bar

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FEATURES AND BENEFITS

  • Lighter and shorter collapsed height than equivalent RACH models
  • Double-acting for rapid retraction, regardless of hose lengths or system losses
  • Built-in safety valve prevents accidental over-pressurization
  • Hollow plunger design allows for both pull and push forces
  • Hard coat finish on all surfaces resists damage and extends cylinder life
  • Handles and CR-400 couplers with dust caps included on all models
  • Floating center tube increases seal life
  • Steel baseplate and saddle for protection against load-induced damage
  • Integral stop ring prevents plunger over-travel and is capable of withstanding the full cylinder capacity
  • All cylinders meet ASME B-30.1 standards.

Our employees have experience in the following areas:

Technical Sales

Technical Sales

The employees at kNm Hydraulikk are committed to delivering fast, accurate and safe solutions to our customers. We specialize in developing tailor-made solutions for our clients.
Rental

Rental

kNm Hydraulikk has an extensive selection of tools available in our rental park. We offer products for rental that can facilitate work within torque, tension, flanges, subsea bolt tightening and HSE products that prevent falling objects and crush injuries.
Design & Planning

Design & Planning

Some applications are more challenging than others. For example, there may be access problems with standard equipment. In such cases, the R&D department at kNm Hydraulikk can help you with tailor-made solutions.
Engineering Services

Engineering Services

kNm Hydraulikk have advisors that can assist in the calculation of bolted connections as well as the methods one should use.
Calibration

Calibration

All torque tools need to undergo periodic calibration to ensure optimal performance. kNm Hydraulikk calibrates tools according to current standards.
Enerpac Services

Enerpac Services

kNm Hydraulikk is an authorized Enerpac Service Center. We maintain our status through a regulated review process conducted by Enerpac.
Bolting

Bolting

Bolt tightening with the right equipment and torque prevents future leaks in flanges and mechanical connections. The right torque is crucial for optimal results.
Courses

Courses

kNm Hydraulikk offer courses in flange work acording to NS-EN 1591-4 (formerly known as Norwegian Oil and Gas and OLF Guideline 118). The course provides knowledge in preparation, planning, execution, and documentation of work on bolt tensioning of flange connections on pressurized systems.
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RELIABILITY

Accurate tension of bolted connections requires knowledge and experience. Our products have patented solutions that combine both speed and accuracy.
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QUALITY

Quality is our trademark, and our proof is our satisfied customers. kNm Hydraulikk holds its subcontractors and their products to a very high standard. We manufacture our equipment in the US, UK, Sweden, and Germany.