RT3311 309 kN Capacity, 300 mm Stroke, Multi-stage, Telescopic Hydraulic Cylinder

Enerpac RT3311 Multi-stage Telescopic Hydraulic Cylinder

The Enerpac RT3311 is a durable, 2-stage telescopic hydraulic cylinder designed for extended-reach applications in limited spaces, ideal for industrial lifting, pushing, and positioning in construction and maintenance. Delivering a maximum capacity of 35 tons (309 kN) over a 300 mm stroke, this single-acting model operates at up to 10,000 psi with synchronized stage extension, nitrocarburized steel construction for corrosion and wear resistance, and a tilting saddle for angled loads, ensuring precise and reliable performance in harsh environments.

• Product Overview
  • Name: Enerpac RT3311 Multi-stage Telescopic Hydraulic Cylinder
  • Type: Single-acting, 2-stage telescopic cylinder for heavy-duty applications
  • Primary Applications: Industrial lifting, pushing, and positioning tasks in construction, maintenance, and confined spaces
  • Force Output: 35 tons (309 kN) at maximum stroke
  • Stroke: 300 mm (11.81 in) total
  • Stages: 2 stages, each with 150 mm (5.91 in) stroke
  • Operating Pressure: Maximum 10,000 psi (700 bar)
  • Collapsed Height: 352 mm (13.86 in) minimum
• Technical Specifications
  • Capacity (Stage 1): 89 tons (792 kN)
  • Capacity (Stage 2): 35 tons (309 kN)
  • Maximum Operating Pressure: 10,000 psi (700 bar)
  • Total Stroke: 300 mm (11.81 in)
  • Collapsed Height (A): 352 mm (13.86 in)
  • Extended Height: 652 mm (25.67 in)
  • Oil Capacity (Advance): 2,359 cm³ (144 in³)
  • Weight: 39.6 kg (87 lbs)
  • Outside Diameter (D): 160 mm (6.3 in)
  • Base to Advance Port (H): 25 mm (0.98 in)
  • Saddle Diameter (J): 80 mm (3.15 in)
  • Body Material: Steel with nitrocarburized surface treatment
  • Side-Load Capacity: 3% of full capacity
  • Series: RT Series Telescopic Cylinders
• Key Features
  • Enables long strokes in confined spaces for efficient load handling
  • Nitrocarburized treatment inside and out for corrosion protection and harsh-condition durability
  • Hardened surfaces resist side-loading and cyclic wear
  • Double wear bearings support stable lifting stages
  • Integrated tilting saddle allows up to 5 degrees of tilt
  • Synchronized multi-stage extension for precise control