Welded Hydraulic Cylinder
A welded hydraulic cylinder uses a welded body structure where the barrel, base, ports, and mounting components are built into a compact and durable cylinder assembly.
ZHY manufactures welded hydraulic cylinders for mobile machinery, agricultural equipment, trailers, lifting systems, material handling equipment, industrial machinery, replacement matching, and wholesale factory supply.
Welded Hydraulic Cylinder Manufacturer in China
ZHY Hydraulic is a welded hydraulic cylinder manufacturer and factory in China, supplying custom welded hydraulic cylinders for OEM equipment, aftermarket replacement, and wholesale programs. We manufacture from customer drawings, samples, and application specifications, with bore, stroke, rod, pressure, mounting, ports, seals, coatings, colors, nameplates, and packaging configured for the project.
Available structures include welded clevis hydraulic cylinders, welded tang cylinders, welded rod-end cylinders, trunnion and flange-mounted designs, and compact welded cylinders for mobile equipment. Applications include construction machinery, agricultural equipment, forklifts, garbage trucks, mining machines, marine equipment, trailers, lifting systems, and industrial hydraulics.
Cylinder tubes, rods, pistons, glands, end caps, and mounting parts are machined and inspected before controlled welding, assembly, and pressure testing. This process helps OEM buyers achieve dimensional consistency, reliable sealing, structural strength, and repeatable quality across prototypes and production batches.
What Is a Welded Hydraulic Cylinder?
A welded hydraulic cylinder is a hydraulic cylinder designed with a welded construction, where the cylinder barrel is permanently joined to the end cap and mounting components instead of being secured with external tie rods. Unlike tie rod cylinders, the welded design provides a more compact structure, higher strength, and better resistance to vibration and heavy loads.
Welded hydraulic cylinders individual components are precision-machined or forged process according to application requirements, then assembled into a durable welded structure.They are widely used in construction machinery, agricultural equipment, forklifts, cranes, and other mobile equipment where space efficiency, reliability, and high-pressure performance are essential.
Why Welded Hydraulic Cylinders?
Welded hydraulic cylinders are widely used in mobile and heavy-duty equipment because the welded body provides a compact envelope, rigid mounting support, and good resistance to vibration, impact, and repeated loads. Unlike tie-rod cylinders, the barrel, base, ports, and mounting components form an integrated assembly without exposed external tie rods.
This structure is well suited to construction machinery, agricultural equipment, forklifts, garbage trucks, trailers, lifting systems, and other applications where installation space and durability matter. Correct material selection, weld design, machining tolerances, seal selection, and pressure testing remain essential; the welded construction alone does not guarantee performance.
For OEM buyers, a properly engineered welded hydraulic cylinder can reduce installation complexity, withstand demanding duty cycles, and provide dependable service with practical maintenance and replacement support.
Welded Hydraulic Cylinder Applications
Welded cylinders are used where your equipment needs compact structure, strong mounting support, and reliable hydraulic movement under mobile or industrial working conditions.
Construction Equipment
Agricultural Equipment
Garbage Trucks
Material Handling
Truck Equipment
Industrial Machines
Welded Hydraulic Cylinder Technical Specifications
These specifications are for reference only.
We manufacture a wide range of hydraulic cylinders in different dimensions, materials, mounting styles, and pressure ranges to meet your equipment and application requirements.If you cannot find the hydraulic cylinder sizes that match your requirements in the table, please feel free to contact the ZHY team.
| 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 |
Custom Welded Hydraulic Cylinders Built to Your Specifications
Every application has unique hydraulic requirements. At ZHY Hydraulic, we manufacture custom welded hydraulic cylinders based on your drawings, samples, or technical specifications. Whether you need an OEM cylinder for new equipment or a replacement cylinder for existing machinery, our engineering team can customize dimensions, mounting configurations, materials, sealing systems, pressure ratings, and surface finishes to ensure optimal performance, reliability, and service life.
- Bore
Custom bore diameters to meet your force and performance requirements. - Stroke
Manufactured with custom stroke lengths for your application. - Rod Diameter
Optimized rod sizes for strength, stability, and long service life. - Mounting Style
Available in clevis, flange, trunnion, eye, cross tube, and other mounting types. - Working Pressure
Designed for operating pressures from standard-duty to heavy-duty applications. - Port Thread
Custom hydraulic ports, thread types, and connection positions available.
- Cushion
Optional adjustable or fixed cushioning for smoother operation and reduced impact. - Seal Brand
Compatible with Hallite, NOK, Hallite, SKF, TYS Seals, and other premium seal brands. - Surface Treatment
Chrome plating, nickel plating, black oxide, painting, and other protective finishes. - Color
Custom paint colors to match your equipment or corporate identity. - Logo
Laser marking, nameplates, and OEM branding services available. - Packaging
Customized export packaging, wooden cases, pallets, and private-label packaging.
Not seeing your specification?
Contact our team to discuss custom solutions for your sizes and equipment.
Key Features of ZHY Welded Hydraulic Cylinders
Compact Welded Body
Suitable for equipment where installation space, body strength, and mounting stability are important.
OEM-Fit Dimensions
Bore, rod, stroke, closed length, mounting, port direction, and pin size are matched to your equipment layout.
Mobile Equipment Duty
Designed for vibration, outdoor conditions, repeated movement, and equipment-mounted hydraulic systems.
Welded Mounting Support
Mounting ends, brackets, clevises, and ports are reviewed for force direction and installation fit.
Pressure Performance
Material selection, welding, seal structure, and testing are controlled for stable pressure performance.
Replacement Matching
ZHY can match old welded cylinders using photos, drawings, samples, and key measurements.
Factory Testing
Pressure testing, leakage testing, full-stroke inspection, and dimensional checking are performed before shipment.
Wholesale Supply
Batch production supports your equipment assembly, repair supply, distributor stock, and spare parts program.
Precision-Engineered Welded Hydraulic Cylinder Structure
A welded hydraulic cylinder consists of a cylinder barrel, piston, piston rod, rod gland, end caps, and seal system, all working together to convert hydraulic pressure into mechanical force. Unlike tie-rod designs, the barrel and end caps are permanently welded into a single, high-strength unit, eliminating the need for external tie rods and threaded connections. This results in a more compact structure, higher pressure resistance, and greater reliability under heavy-duty operating conditions.
Precision Welding Process for Maximum Strength & Reliability
The strength and reliability of a welded hydraulic cylinder depend on the quality of the weld joint between the barrel and end caps. We combine manual welding with robotic welding, allowing us to ensure consistent, full-penetration seams on standard cylinders while applying skilled manual techniques for complex or non-standard structures. Every weld seam undergoes non-destructive testing (NDT) to detect any porosity, cracks, or incomplete fusion, ensuring each cylinder meets strict structural integrity standards before moving to final assembly and testing.
Welded Hydraulic Cylinder Mounting Types
Mounting style affects installation fit, load direction, side-load risk, welding position, and replacement accuracy.
Clevis Mount
Used for pivoting equipment where the cylinder angle changes during movement.
Eye Mount
Common for mobile equipment, trailers, agricultural machinery, and lifting systems.
Trunnion Mount
Used where the cylinder needs side support and controlled pivot movement.
Flange Mount
Used when the welded cylinder needs fixed support on a machine frame.
Bracket Mount
Used for vehicle-mounted and equipment-mounted hydraulic cylinder installations.
Need a Custom Solution?
Simply send us your drawing or specifications. Our engineers will review your project and provide a quotation with technical recommendations within 24 hours.
Typical Applications & Recommended Cylinder Designs
| Equipment | Typical Cylinder Function | Recommended Mounting | Pressure |
|---|---|---|---|
| Excavator | Boom / Arm / Bucket | Clevis | 25–35 MPa |
| Wheel Loader | Lift / Tilt | Trunnion | 25–35 MPa |
| Forklift | Lift / Tilt | Eye Mount | 16–25 MPa |
| Garbage Truck | Compactor / Tailgate | Cross Tube | 20–35 MPa |
| Agricultural Equipment | Steering / Lift | Clevis | 16–25 MPa |
| Industrial Machinery | Pressing / Clamping | Flange | 16–70 MPa |
Welded Hydraulic Cylinder vs. Tie-Rod Hydraulic Cylinder: What's the Difference?
| Feature | Welded Hydraulic Cylinder | Tie-Rod Hydraulic Cylinder |
|---|---|---|
| Construction | Barrel and end caps welded together | Held together by external tie rods and nuts |
| Pressure Rating | Higher (typically up to 350 bar / 5,000 psi) | Lower (typically up to 250 bar / 3,600 psi) |
| Size & Weight | More compact, lighter for the same bore | Bulkier due to tie rod housing |
| Repairability | Not field-repairable; requires factory rework | Field-repairable; easy disassembly |
| Durability | More rigid, better resistance to side loads | Slightly less rigid under heavy side loads |
| Cost (Volume Production) | Lower per-unit cost at scale | Higher due to more components |
| Typical Applications | Construction machinery, cranes, mining, agriculture | Industrial automation, presses, general machinery |
| Customization | Highly customizable bore, stroke, mounting | Standardized designs more common |
Frequently Asked Questions
Yes. ZHY can manufacture welded hydraulic cylinders according to your drawings, samples, photos, or key dimensions, including bore, rod size, stroke, closed length, mounting type, port direction, and working pressure.
Welded hydraulic cylinders are commonly used in mobile machinery, agricultural equipment, trailers, lift gates, material handling machines, industrial systems, and vehicle-mounted hydraulic equipment.
Yes. ZHY can match old welded cylinders by reviewing photos, samples, measurements, pin-to-pin length, port direction, mounting width, and installation clearance.
Please provide equipment type, cylinder function, bore diameter, rod diameter, stroke, closed length, mounting type, port thread, working pressure, load condition, quantity, and photos or drawings.
A welded cylinder uses a welded body structure, while a tie rod cylinder uses external tie rods to hold the end caps together. Welded cylinders are often selected for compact mobile equipment installations.
Yes. ZHY supports wholesale orders for equipment production, repair replacement, hydraulic parts distribution, trailer equipment supply, agricultural equipment programs, and industrial cylinder supply.
