Multi-stage Telescopic Cylinder

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Multi-stage Telescopic Cylinder

The Multi-Stage Telescopic Cylinder is a heavy-duty hydraulic solution designed to deliver long stroke within a compact retracted length. Featuring two or more stages that extend sequentially, this cylinder offers stroke capabilities far beyond single-stage cylinders. It is manufactured with seamless honed tubes and induction-hardened chrome-plated rods, ensuring strength, wear resistance, and excellent sealing performance. Whether in dump trucks, cranes, or industrial lifting platforms, the Multi-Stage Telescopic Cylinder provides maximum lifting force, smooth extension, and long service life, making it a preferred choice for distributors, stockists, and engineering companies worldwide.

Model:
Multi-stage Type
Brand:
EAST AI

Availability:



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Product Description

Advantages of Multi-Stage Telescopic Cylinder

The Multi-Stage Telescopic Cylinder provides unique benefits that make it stand out in demanding applications:

Compact retracted size

Saves space for installation in confined equipment.

Extended stroke capability

Provides up to 5–6 times the cylinder’s closed length.

High lifting capacity

Handles heavy loads in construction and transportation.

Durability

Chrome-plated rods and high-performance seals ensure long service life.

Customization

Available in various bore sizes, strokes, and stage configurations.

Leak-free sealing system

Reduces downtime and enhances reliability.

Corrosion resistance

Surface treatment improves outdoor and harsh-environment performance.

Production Process of Multi-Stage Telescopic Cylinder

Every Multi-Stage Telescopic Cylinder is manufactured under strict quality control. The process includes:

Raw Material Selection
Premium ST52, CK45, or alloy steels are sourced for strength.
Tube Honing & Skiving
Internal surfaces are honed to Ra ≤ 0.2 μm for optimal sealing.
Rod Processing
Chrome plating and induction hardening ensure wear and corrosion resistance.
Stage Machining
Multiple cylinder stages are precisely machined for smooth operation.
Seal Assembly
High-quality seals (Parker, Hallite, NOK) are installed.
Welding & End Cap Assembly
Structural welding ensures strength and reliability.
Hydraulic Pressure Testing
Each cylinder undergoes hydrostatic testing at rated pressure.
Surface Treatment
Powder coating, phosphating, or painting for durability.
Final Inspection
Dimensional, hardness, and roughness checks before shipment.

Applications of Multi-Stage Telescopic Cylinder

The Multi-Stage Telescopic Cylinder is widely used in industries requiring long-stroke hydraulic power:

Construction Machinery

Dump trucks, tippers, excavators, and loaders.

Mining Equipment

Lifting systems, underground transport, and drilling rigs.

Agricultural Machinery

Harvesters, sprayers, and tipping trailers.

Material Handling

Cranes, lifting tables, forklifts, and platforms.

Logistics & Transport

Garbage trucks, cargo lifts, and hydraulic tailgates.

Marine & Offshore

Ship cranes and offshore lifting systems.

Product Details of Multi-Stage Telescopic Cylinder

Specification	Details
Product Name	Multi-Stage Telescopic Cylinder
Bore Size Range	50 mm – 400 mm
Stroke Length	Up to 8000 mm (customized)
Number of Stages	2–6 stages
Working Pressure	Up to 300 bar
Material	ST52 / CK45 / 42CrMo4
Rod Surface	Hard Chrome Plated, Induction Hardened
Seal Brand	Parker / Hallite / NOK
Temperature Range	-30°C to +120°C
Mounting Options	Trunnion, Clevis, Flange, Eye, Lug Mounting
Standards	ISO 6022 / DIN / Custom

Factory Inventory of Multi-Stage Telescopic Cylinder

We maintain a robust inventory of Multi-Stage Telescopic Cylinder components to ensure rapid delivery for distributors and engineering firms:

Large stock of honed tubes and chrome-plated rods.

Semi-finished telescopic stages for customized assembly.

Ready-to-ship cylinders in popular configurations.

Monthly production capacity of over 8,000 hydraulic cylinders.

Strong supply chain ensuring stable global delivery.

This enables partners to reduce lead times and improve project efficiency.

Quality Inspection of Multi-Stage Telescopic Cylinder

Each Multi-Stage Telescopic Cylinder undergoes strict multi-step inspections:

Dimensional Accuracy

Bore and rod sizes checked with micrometer precision.

Surface Roughness

Honed tube finish verified to Ra ≤ 0.2 μm.

Hardness Test

Rods tested after heat treatment for proper HRC range.

Welding Quality Check

Ultrasonic testing for weld integrity.

Hydraulic Pressure Test

All cylinders tested up to 1.5 times working pressure.

Corrosion Resistance Test

Chrome plating tested in salt spray chambers.

Certificates of Multi-Stage Telescopic Cylinder

Our Multi-Stage Telescopic Cylinders meet international certifications, ensuring global recognition:

ISO 9001:2015

Quality management system certification.

ISO 14001

Environmental management compliance.

CE Marking

Compliance with European safety standards.

RoHS Certification

Environmentally friendly production.

DNV / GL / BV Marine Approvals

Certified for offshore and shipping use.

certificate

FAQ

FAQs

What is a Multi-stage Telescopic Cylinder used for?

It's used when long strokes are needed in compact spaces. Ideal for lifting, dumping, or reaching applications in trucks, platforms, and industrial lifts.
How many stages can a telescoping cylinder have?

Most Multi-stage Telescopic Cylinders come with 2 to 5 stages, depending on stroke length and application requirements.
What’s the difference between single-acting and double-acting types?

Single-acting models extend under hydraulic pressure and retract via gravity or load weight. Double-acting versions use hydraulic force in both directions for better control and stability.
Are these cylinders customizable for my machine?

Yes. Bore size, stroke length, number of stages, mounting type, and port positions can all be customized to match your hydraulic system and space constraints.
Can Multi-stage cylinders be used horizontally?

Yes, but they require precise support and alignment. While primarily designed for vertical lift, they can function horizontally in well-engineered Telescoping Hydraulic Cylinder systems.

Related Products

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Two-stage Telescopic Cylinder