Telescopic Hydraulic Cylinder
Custom telescopic hydraulic cylinders for dump trucks, tipping trailers, cranes, aerial platforms, agricultural equipment, lifting systems, and other machines that need long extension from limited installation space.
Including small bore,heavy duty and long stroke and multi stage telescopic hydraulic cylinder from 2-6stage.Available in single-acting and double-acting designs with OEM manufacturing and aftermarket support.
Telescopic Hydraulic Cylinder Manufacturer & Supplier in China
ZHY manufactures custom telescopic hydraulic cylinders for equipment that needs a long operating stroke but has limited closed installation length. You can source single-acting telescopic cylinders, double-acting telescopic cylinders, multi-stage hydraulic cylinders, dump truck hoist cylinders, replacement cylinders, and wholesale OEM production from a direct factory in China.
You need more than a cylinder with several nested tubes. At ZHY, you receive engineering review for stage diameter, total stroke, closed length, load direction, return method, mounting alignment, sealing, surface finish, pressure, and operating environment.
From prototype development to repeat production, ZHY supports drawings, samples, replacement measurements, custom materials, OEM branding, testing records, export packing, and technical confirmation before manufacturing.
Custom Telescopic Hydraulic Cylinders Built to Your Specifications
Whether you need a direct replacement or a completely new design, ZHY manufactures custom telescopic hydraulic cylinders based on your drawings, samples, or technical requirements. Our engineering team works closely with OEM manufacturers, equipment builders, and hydraulic system suppliers to ensure every cylinder matches your application, performance, and installation requirements.
Customization Options
✓ Number of Stages ✓ Port Thread
✓ Bore ✓ Seal Brand
✓ Stroke ✓ Tube Material
✓ Closed Length ✓ Painting Color
✓ Mounting Style ✓ Logo
✓ Working Pressure ✓ Packaging
Our Telescopic Hydraulic Cylinder Range
The correct telescopic cylinder depends on whether gravity can retract the equipment, whether movement is needed in both directions, and how the cylinder is mounted throughout the working cycle.
Single-Acting Telescopic Cylinder
Hydraulic pressure extends the stages, while gravity or the external machine load returns them. This structure is commonly used for dump trucks, tipping trailers, and agricultural bodies.
Double-Acting Telescopic Cylinder
Hydraulic pressure controls both extension and retraction. This design is suitable when the equipment must retract positively, operate at changing angles, or move without depending on gravity.
Multi-Stage Dump Truck Cylinder
Designed to raise dump bodies through a large tipping angle from a compact chassis installation. Stage sizing, body weight, load position, mounting angle, and maximum pressure must be reviewed together.
Front End Telescopic Cylinder
Installed at the front of dump trucks or trailers, providing maximum lifting height and stability. Ideal for heavy-duty tipping applications with long stroke requirements.
Underbody Telescopic Cylinder
Installed beneath the body where space, tipping geometry, and frame design allow. Correct mounting alignment is essential because side load can increase as the body angle changes.
Custom Telescopic Cylinder
Designed and manufactured to your drawings or specifications, including stage configuration, stroke, mounting, pressure, and port requirements for OEM applications.
Telescopic Hydraulic Cylinder Specifications
Final dimensions and performance must be confirmed from your equipment load, closed length, total stroke, stage count, mounting geometry, operating angle, pressure, environment, and safety requirements.
| Item | Range | Notes |
|---|---|---|
| Bore Diameter | 22mm – 600mm | Custom bores available on request |
| Stroke Length | Up to 6000mm | Telescopic designs, 2–6 stages |
| Working Pressure | Up to 100Mpa | Rated per application, tested at 1.5× |
| Rod Diameter | 20mm–300 mm | Custom rod sizes available on request |
| Chrome plating thickness | 30–50 µm | Salt-spray tested 500+ hrs |
| Mounting Type | Clevis / Flange / Trunnion | Custom available on request |
| Tube & Rod Material | 20# Steel,45# Steel,27SiMn、42CrMo,Carbon Steel, Alloy Steel, Stainless Steel | Custom available on request |
| Seal Brand | Hallite, NOK, SKF, Parker,TYS Seals | Custom available on request |
| Temperature Range | -20°C to +120°C | Custom available on request |
More stages are not automatically better. Additional stages can reduce closed length, but they also increase sealing points, tolerance control, manufacturing complexity, and sensitivity to side load.
Typical Telescopic Cylinders Applications
Telescopic hydraulic cylinders are designed for applications requiring long stroke, high lifting force, and compact installation, including dump trucks, trailers, hook lifts, and other heavy-duty equipment.
Dump Trucks & Tipping Trailers
Cranes & Lifting Equipment
Aerial Work Platforms
Agricultural Trailers
Why Choose ZHY？
From custom engineering to strict quality control, ZHY delivers reliable telescopic hydraulic cylinders trusted by OEM manufacturers, distributors, and hydraulic system companies worldwide.
20+ Years Experience
Extensive manufacturing expertise in hydraulic cylinders for demanding industrial and mobile equipment applications.
5000+ Custom Cylinders
Successfully developed thousands of custom cylinder solutions based on customer drawings and technical requirements.
30+ Countries Served
Supplying high-quality hydraulic cylinders to customers across Europe, North America, Southeast Asia, and other global markets.
Fast Delivery
Efficient production planning and streamlined manufacturing help reduce lead times and keep your projects on schedule.
Need a reliable telescopic hydraulic cylinder manufacturer ?
Send us your drawing, specifications or application details.
Our engineers will recommend the best solution within 24 hours.
Why Choose Telescopic Hydraulic Cylinders ?
Designed for maximum lifting performance, compact installation, and long-term reliability, telescopic hydraulic cylinders are the preferred choice for dump trucks, trailers, and other heavy-duty equipment requiring extended stroke in limited space.
Longer Stroke in Less Space
Provides exceptional extension length while maintaining a compact retracted size, making it ideal for applications with limited installation space.
High Lifting Performance
Delivers powerful and stable lifting force for heavy loads, ensuring reliable operation in demanding working conditions.
Smooth Multi-Stage Extension
Precision-machined stages extend sequentially for smooth, stable movement with reduced vibration and improved operational safety.
Heavy-Duty Construction
Manufactured from high-strength steel with hard chrome-plated stages for excellent wear resistance and long service life.
Low Maintenance Requirements
Premium sealing systems and precision manufacturing help minimize leakage, reduce maintenance frequency, and lower operating costs.
OEM & Custom Solutions
Available in various stage configurations, strokes, mountings, and pressure ratings to meet OEM specifications or replace existing cylinders.
Telescopic Hydraulic Cylinder Selection Logic
Use the equipment movement and installation restrictions to choose the correct structure before production.
If the required stroke is longer than the available closed length
Choose a telescopic cylinder. Nested stages provide longer movement from a shorter retracted package.
If gravity can retract the load safely
Choose a single-acting telescopic cylinder. This reduces hydraulic circuit complexity and is common in tipping equipment.
If the cylinder must retract under hydraulic power
Choose a double-acting telescopic cylinder. This provides positive control when gravity return is insufficient or unreliable.
If the load changes as the equipment angle increases
Review force at every stage. The active piston area becomes smaller as the cylinder moves through different stages.
If the equipment operates outdoors in dust, mud, or rain
Choose stronger wipers and surface protection. Contamination on several exposed stages can shorten seal and tube life.
If the original cylinder has no usable drawing
Choose sample-based replacement manufacturing. Send the old cylinder, photos, and mounting dimensions for review.
Each Nested Stage Must Work as Part of One System
A telescopic cylinder has more sealing surfaces, guide points, moving diameters, and tolerance relationships than a conventional cylinder. Copying only total stroke and closed length is not enough.
Reinforced Barrel and End Structure
Tube material, wall thickness, welding, and end connections are matched to working pressure, peak pressure, and load direction.
Rod Stability and Guide Support
Rod diameter, unsupported length, guide length, side load, shock load, and stroke are reviewed together.
High-Load Sealing System
Seal material and structure are selected according to pressure, temperature, oil, speed, contamination, and holding time.
Mounting Strength and Alignment
Clevis, eye, flange, trunnion, lug, bracket, and spherical bearing options are checked for force transfer and pivot movement.
Common Telescopic Cylinder Problems You Should Prevent
The cylinder may fit the machine and still fail early if stage loading, return force, side load, contamination, or pressure changes are ignored.
Using Total Stroke Without Confirming Closed Length
Risk: The cylinder reaches the required extension but cannot fit between the mounting points when retracted.
Consequence: Installation failure, frame modification, and project delay.
Ignoring Force Changes Between Stages
Risk: The cylinder starts with enough force but becomes too weak when a smaller stage becomes active.
Consequence: Incomplete lifting, stalled movement, unstable operation, or excessive system pressure.
Incomplete lifting, stalled movement, unstable operation, or excessive system pressure.
Risk: A single-acting cylinder does not fully retract when the load angle or body weight changes.
Consequence: Stuck stages, slow return, unsafe positioning, and interrupted operation.
Allowing Side Load at Long Extension
Risk: Mounting misalignment or frame movement bends the extended stages.
Consequence: Scoring, seal wear, stage sticking, leakage, and permanent tube damage.
Using Weak Dust Protection Outdoors
Risk: Mud, sand, dust, and moisture contaminate several exposed stage surfaces.
Consequence: Wiper damage, seal wear, scratched tubes, contaminated oil, and shorter service life.
Choosing More Stages Only to Reduce Package Size
Risk: Additional stages are added without reviewing cost, sealing points, stability, tolerances, and maintenance.
Consequence: A compact design becomes unnecessarily complex and harder to maintain.
Telescopic Hydraulic Cylinder FAQs
1. What is a telescopic hydraulic cylinder?
A telescopic hydraulic cylinder uses two or more nested tubular stages to produce a long extended stroke from a much shorter closed length. You should choose this structure when your equipment has limited installation space but still needs long lifting, tipping, pushing, or positioning travel.
2. When should you choose a single-acting telescopic cylinder?
Choose a single-acting telescopic hydraulic cylinder when hydraulic pressure is needed for extension and gravity or the external load can retract the stages. This structure is common in dump trucks, tipping trailers, agricultural trailers, and lifting bodies because it is comparatively simple and compact.
3. When is a double-acting telescopic cylinder more suitable?
Choose a double-acting telescopic hydraulic cylinder when you need hydraulic control during both extension and retraction. It is more suitable when gravity return is unreliable, the installation angle changes, precise retraction is important, or the equipment must operate in more than one orientation.
4. What is the difference between single-acting and double-acting telescopic cylinders?
Single-acting telescopic cylinders extend by hydraulic pressure and retract by gravity or external load, making them ideal for dump trucks. Double-acting telescopic cylinders use hydraulic pressure for both extension and retraction, making them suitable for equipment that requires precise bidirectional movement.
5. How many stages can ZHY manufacture?
ZHY can review custom telescopic hydraulic cylinder projects with multiple stages, with current manufacturing information referencing designs up to six stages. The practical stage count must still be confirmed according to total stroke, closed length, stage diameter, stability, pressure, and equipment geometry.
6. Can ZHY manufacture replacement telescopic hydraulic cylinders?
Yes. We manufacture custom replacement telescopic hydraulic cylinders compatible with Hyva and other leading brands. ZHY can review closed length, extended length, stage diameters, mounting dimensions, ports, operating pressure, and return method before manufacturing a compatible replacement.
7. What industries use telescopic hydraulic cylinders?
Telescopic hydraulic cylinders are widely used in dump trucks, tipping trailers, hook lift trucks, skip loaders, refuse collection vehicles, agricultural trailers, mining equipment, and other heavy-duty machinery requiring long stroke and compact installation.
8. Can you order telescopic hydraulic cylinders wholesale from ZHY?
Yes. ZHY supports prototype, small-batch, OEM, replacement, repeat-order, and wholesale telescopic hydraulic cylinder manufacturing. You can customize materials, stage count, mounting, ports, paint, labels, packaging, inspection records, and export protection.
