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
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.
