EAST AI Hydraulic Manufacturer
Since 2006
Since 2006
The Multi-Stage Telescopic Cylinder provides unique benefits that make it stand out in demanding applications:
Saves space for installation in confined equipment.
Provides up to 5–6 times the cylinder’s closed length.
Handles heavy loads in construction and transportation.
Chrome-plated rods and high-performance seals ensure long service life.
Available in various bore sizes, strokes, and stage configurations.
Reduces downtime and enhances reliability.
Surface treatment improves outdoor and harsh-environment performance.
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.
The Multi-Stage Telescopic Cylinder is widely used in industries requiring long-stroke hydraulic power:
Dump trucks, tippers, excavators, and loaders.
Lifting systems, underground transport, and drilling rigs.
Harvesters, sprayers, and tipping trailers.
Cranes, lifting tables, forklifts, and platforms.
Garbage trucks, cargo lifts, and hydraulic tailgates.
Ship cranes and offshore lifting systems.
| 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 |
We maintain a robust inventory of Multi-Stage Telescopic Cylinder components to ensure rapid delivery for distributors and engineering firms:
This enables partners to reduce lead times and improve project efficiency.
Each Multi-Stage Telescopic Cylinder undergoes strict multi-step inspections:
Bore and rod sizes checked with micrometer precision.
Honed tube finish verified to Ra ≤ 0.2 μm.
Rods tested after heat treatment for proper HRC range.
Ultrasonic testing for weld integrity.
All cylinders tested up to 1.5 times working pressure.
Chrome plating tested in salt spray chambers.
Our Multi-Stage Telescopic Cylinders meet international certifications, ensuring global recognition:
Quality management system certification.
Environmental management compliance.
Compliance with European safety standards.
Environmentally friendly production.
Certified for offshore and shipping use.
