Telescopic Cylinders

Multi-stage hydraulic cylinders providing long stroke capability within a compact retracted length—ideal for dump trucks, trailers, and tipping systems where full stroke in limited space is essential.

Long Stroke, Compact Design

Telescopic hydraulic cylinders provide long stroke capability within a compact retracted length. They extend in multiple stages using nested tubes and hydraulic pressure, delivering smooth, high-force motion for lifting and dumping applications. Available in single- or double-acting types, they are ideal for mobile and tipping systems where full stroke in limited space is essential.

How They Work

Sequential Extension

Multiple stages extend sequentially under hydraulic pressure, each stage sliding from within the next.

Single/Double Acting

In single-acting versions, gravity or load weight retracts the stages; double-acting types use pressure in both directions.

Internal Sealing

Internal seals and bearings guide and seal between stages.

Sequential Flow

Porting is designed to control oil flow to each stage in sequence.

End-of-Stroke Cushioning

Optional cushions slow end-of-stroke impact.

Telescopic Cylinder

When to Use

Ideal applications for telescopic cylinders

Applications requiring long extension with limited retracted length

Dump trucks, trailers, and tippers

Material handling or lifting systems where compact retraction is key

Mobile and industrial equipment needing large motion from a small space envelope

Lifting, tilting, or raising systems with heavy loads

Product Configurations

Design Options

Achieve long stroke in compact retracted length with configurable stages and mounting options.

Core Dimensions

Bore Size50–250 mm (typical)
Stroke LengthUp to 6 m+
Pressure RatingUp to 300 bar (4,350 psi)
Stages2–6 stages (standard); custom designs available

Build & Interfaces

MountingTrunnion, pin-eye, clevis, cross-tube, foot, spherical bearing
PortsNPT, BSPP, SAE straight thread (O-ring), NPTF
MaterialsHigh-strength steel tubes; hard-chrome plated stages; stainless or coated options for corrosion resistance

Performance Options

SealsNBR (standard); PTFE or low-friction composite
CushionsOptional hydraulic cushions both ends
SensingProximity or stroke sensors available on select designs

Custom Engineering

We design and manufacture telescopic cylinders tailored to your specific requirements and applications.

Custom Engineering
  • Non-Standard RatiosNon-standard stroke ratios and stage counts
  • Marine-Grade MaterialsCorrosion-resistant or marine-grade materials
  • Position SensingIntegrated position sensing and synchronization
  • Harsh Environment SealsSealing systems for abrasive or dirty environments
  • OEM IntegrationCustom mounts and hydraulic connections for OEM integration

Key Benefits

  • Long stroke: From compact retracted length
  • High extension ratio: Up to 6:1 typical
  • Durable design: For high-cycle mobile applications
  • Single/double acting: Available in both configurations
  • Low maintenance: With sealed, welded construction
  • Smooth transition: Smooth stage transition and controlled extension

Operating Envelope

  • Pressure: Up to 300 bar (4,350 psi)
  • Speed: Up to 0.3 m/s
  • Temperature: −20°C to +80°C
  • Media: Mineral hydraulic oil (HLP); biodegradable and fire-resistant fluids available

Industry Applications

Telescopic cylinders power long-stroke operations in space-constrained environments

Dump Trucks

Trailers and refuse vehicles

Agricultural

Tipping systems

Construction

Mining dumpers

Scissor Lifts

Platforms

Container Handling

Tilt beds

Marine & Dockside

Lifting systems

Industrial

Lift tables

Compact Hoists

Custom solutions

FAQs

Frequently Asked Questions

It provides long extension from a short retracted length, ideal for dump and tipping systems where space is limited.

Both types are available. Single-acting use gravity for return; double-acting versions are powered both directions for precise control.

Yes. Most designs allow disassembly for seal or bearing replacement with proper tools and alignment fixtures.

Ready to Move Forward?

Request a Quote

Share stroke, bore, stages, load, orientation, speed, pressure, and environment.

Get Quote

Technical Specs

We'll send datasheets, stage drawings, and CAD.

Request Docs

Speak to an Engineer

Get help with sizing, circuit design, and tipping system integration.

Contact Us