Double-acting Hollow Plunger Cylinders

  • Enerpac hydraulic cylinders are used for lifting projects across a wide range of industries – including construction, manufacture, mining and offshore industries. It is less weight, lower collapsed height, faster retraction.
  • 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. 
  • The new Enerpac RARH series of cylinders are designed for these challenging projects.
  • Portability and convenience: the RARH Cylinders include tough aluminium construction which provides a lower weight solution as compared with steel cylinders. Performance and durability are not compromised by their reduced weight—with each cylinder meeting the ASME B30.1 standard and incorporating a built-in safety valve to prevent over-pressurisation. 
  • Getting the cylinders into position and into smaller spaces is assisted by the integral handles on each model and their lower collapsed height.
  • Double-acting for more control: the RARH cylinders are double-acting, which means heavy loads can be lifted and lowered with precise control. A double-acting cylinder outputs force both in and out, creating a higher control level for the retraction that is more reliable, faster, and easier to control than a spring return system. The cylinder can be retracted more efficiently than equivalent single acting types which use a spring return.
  • Its features and benefits include: lighter and shorter collapsed height than equivalent RACH single-acting models; double-acting for rapid retraction, regardless of hose lengths or system losses; built-in safety valve prevents accidental over-pressurisation; hollow plunger design allows for both pull and push forces; composite bearings increase cylinder life and side load resistance; hard coat finish on all surfaces resists damage and extends cylinder life; handles included on all models; floating centre tube increases seal life; steel baseplate and saddle for protection against load-induced damage; integral stop ring prevents plunger over-travel and can withstand the full cylinder capacity; optional internally threaded saddles allow bar to be attached directly inside the plunger; CR400 couplers and dust caps included on all models; all cylinders meet ASME B-30.1 standards.
  • The new Enerpac RARH series of cylinders available now are 30 and 60 tonnage cylinders (each available with a stroke choice of 50, 150, and 250mm (1.97, 5.91 and 9.84 inches) with more models coming soon. 

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