RARH306 359 kN Capacity, 150 mm Stroke, Double-Acting, Aluminum Hollow Plunger Hydraulic Cylinder

Enerpac RARH306 is a lightweight, double-acting aluminum hollow plunger hydraulic cylinder optimized for tensioning, pulling, and pushing in confined spaces, offering superior efficiency over traditional steel models. With a 40.3-ton (359 kN) advance capacity and 150 mm stroke, it provides rapid hydraulic retraction regardless of hose length, operating at up to 10,150 psi with an integral stop ring for safety, composite bearings for side-load resistance, and a hard coat finish for extended durability in harsh industrial environments.

• Product Overview
  • Name: Enerpac RARH306 Double-Acting Aluminum Hollow Plunger Hydraulic Cylinder
  • Type: Double-acting, hydraulic return hollow plunger cylinder
  • Primary Applications: Tensioning, pulling, pushing, and maintenance in industrial and construction setups
  • Force Output: 40.3 tons (359 kN) advance capacity; 21 tons (187 kN) retract capacity
  • Stroke: 150 mm (5.91 in)
  • Retraction Mechanism: Hydraulic return
  • Operating Pressure: Maximum 10,150 psi (700 bar)
  • Collapsed Height: 309 mm (12.16 in)
• Technical Specifications
  • Capacity (Advance): 40.3 tons (359 kN)
  • Capacity (Retract): 21 tons (187 kN)
  • Maximum Operating Pressure: 10,150 psi (700 bar)
  • Stroke: 150 mm (5.91 in)
  • Collapsed Height (A): 309 mm (12.16 in)
  • Extended Height (B): 459 mm (18.07 in)
  • Outside Diameter (D): 135 mm (5.31 in)
  • Bore Diameter (E): 95 mm (3.74 in)
  • Plunger Diameter (F): 70 mm (2.76 in)
  • Effective Area (Advance): 50.8 cm² (7.87 in²)
  • Effective Area (Retract): 26.5 cm² (4.11 in²)
  • Oil Capacity (Advance): 762 cm³ (46.5 in³)
  • Oil Capacity (Retract): 398 cm³ (24.3 in³)
  • Weight: 11.9 kg (26.2 lbs)
  • Center Hole Diameter (Y): 33 mm (1.30 in)
  • Series: RARH Series Aluminum Hollow Plunger Cylinders
• Key Features
  • Lighter and shorter collapsed height than equivalent RACH models for improved usability in tight spaces
  • 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
  • Floating center tube increases seal life
  • Steel base plate and saddle for protection against load-induced damage
  • Integral stop ring prevents plunger over-travel and withstands full cylinder capacity
  • Composite bearings increase cylinder life and side-load resistance
  • Includes CR-400 coupler and dust cap