RLT311 309 kN Capacity, 29 mm Stroke, Low Height Multi-stage, Telescopic Hydraulic Cylinder

Enerpac RLT311 is a compact, low-height 2-stage telescopic hydraulic cylinder ideal for precise lifting and positioning in extremely confined spaces, such as machinery alignment or tool fastening. Delivering a maximum capacity of 34.8 tons (309 kN) over a 29 mm stroke, this single-acting, load-return model operates at up to 10,000 psi with nitrocarburized steel for superior corrosion and wear resistance, ensuring safe and efficient performance in industrial environments where traditional cylinders cannot fit.

• Product Overview
  • Name: Enerpac RLT311 Low Height Multi-stage Telescopic Hydraulic Cylinder
  • Type: Single-acting, 2-stage telescopic cylinder with load return
  • Primary Applications: Machinery positioning, tool fastening, and lifting in confined spaces
  • Force Output: 34.8 tons (309 kN) at maximum stroke
  • Stroke: 29 mm (1.14 in) total
  • Stages: 2 stages, with 16 mm (0.63 in) and 13 mm (0.51 in) strokes per stage
  • Operating Pressure: Maximum 10,000 psi (700 bar)
  • Collapsed Height: 89 mm (3.5 in) minimum
• Technical Specifications
  • Capacity (Stage 1): 81.7 tons (727 kN)
  • Capacity (Stage 2): 34.8 tons (309 kN)
  • Maximum Operating Pressure: 10,000 psi (700 bar)
  • Total Stroke: 29 mm (1.14 in)
  • Collapsed Height (A): 89 mm (3.5 in)
  • Extended Height: 118 mm (4.64 in)
  • Oil Capacity (Advance): 223 cm³ (13.64 in³)
  • Weight: 13 kg (28.7 lbs)
  • Outside Diameter (D): 165 mm (6.5 in)
  • Body Material: Steel with nitrocarburized surface treatment
  • Side-Load Capacity: 3% of full capacity
  • Series: RLT Series Low-Height Telescopic Cylinders
• Key Features
  • Low-profile design enables use in tight clearances where standard cylinders fail
  • Nitrocarburized treatment inside and out for corrosion protection and harsh-condition durability
  • Mounting bolt holes for secure and simple fixturing
  • Load return mechanism for rapid retraction and efficiency
  • High-alloy steel construction for maximum strength and safety
  • Integrated CR-400 coupler for compatibility with standard pumps
  • Complies with ASME B30.1 and EN1494 safety standards