EAST AI Hydraulic Manufacturer
Since 2006
Since 2006
The Two-stage Telescopic Cylinder provides several key advantages over standard hydraulic cylinders:
Achieves long strokes while maintaining a short retracted length.
Offers controlled, step-by-step movement for stable operation.
Built with strong materials to withstand heavy vertical and horizontal loads.
Suitable for lifting, tilting, pushing, and compacting applications.
Manufactured from honed steel tubes and chrome rods for extended service life.
Fewer moving components reduce downtime and servicing costs.
Chrome-plated rods resist rust and wear in harsh environments.
Available in various bore sizes, strokes, and mounting configurations.
The Two-stage Telescopic Cylinder is manufactured through a strict, multi-step production process to ensure top performance:
Premium ST52, CK45, 20MnV6, or 42CrMo steels.
Internal honing of tubes ensures smooth surfaces with Ra ≤ 0.2 μm.
Chrome-plated rods are machined, hardened, and ground for strength.
Precision machining of each telescopic stage for seamless movement.
Robotic welding guarantees strong, leak-free joints.
High-performance seals (Parker, Hallite, NOK) prevent oil leakage.
Each cylinder is tested under 1.5 times the rated pressure.
Painting, powder coating, or phosphating for corrosion protection.
Dimensional checks, hardness tests, and cycle testing before shipment.
The Two-stage Telescopic Cylinder is widely used in industries requiring compact hydraulic lifting solutions:
Lifting and tilting of heavy loads.
Long extension in limited mounting space.
Harvesters, sprayers, and grain handling systems.
Haul trucks, loaders, and underground lifting devices.
Ship deck machinery and offshore hydraulic systems.
Hydraulic presses, compactors, and material handling systems.
| Specification | Details |
|---|---|
| Product Name | Two-stage Telescopic Cylinder |
| Bore Size Range | 80 mm – 400 mm |
| Stroke Length | Up to 6000 mm (customized) |
| Working Pressure | Up to 300 bar |
| Material | ST52 / CK45 / 20MnV6 / 42CrMo |
| Rod Surface | Hard Chrome Plated, Induction Hardened |
| Number of Stages | Two (sequential extension) |
| Seal Brand | Parker / Hallite / NOK |
| Temperature Range | -30°C to +120°C |
| Mounting Options | Flange, Trunnion, Clevis, Eye Mount |
| Standards | ISO 6022 / DIN / Custom |
To support global distributors and engineering firms, we maintain a strong inventory of Two-stage Telescopic Cylinder components:
This ensures steady supply and competitive delivery times for our partners worldwide.
Every Two-stage Telescopic Cylinder undergoes strict quality control:
Bore size, rod diameter, and stage lengths are verified.
Honed finish inspected to Ra ≤ 0.2 μm.
Rod hardness verified according to HRC requirements.
Each unit tested above its rated working pressure.
Ultrasonic and visual inspection for joint integrity.
Salt spray testing for chrome plating durability.
Simulated work cycles to ensure long service life.
The Two-stage Telescopic Cylinder meets international standards and certifications:
Quality management system certification.
Environmental compliance.
European machinery safety approval.
Environmentally friendly material use.
Certifications for marine and offshore applications.
