The Welded Type Double Acting Hydraulic Cylinder is a robust and compact hydraulic solution designed for heavy-duty applications. Manufactured with welded end caps and a seamless barrel, this cylinder provides superior strength, reduced leakage risks, and a longer service life compared to tie-rod cylinders. Its double-acting design allows force to be applied in both extending and retracting directions, making it highly efficient for lifting, pushing, pulling, and precise positioning. With optimized sealing systems, hardened chrome-plated rods, and strict quality control, it is widely used in construction machinery, material handling, agricultural equipment, and industrial systems.
Welded Type
EAST AI
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Product Description
Choosing a Welded Type Double Acting Hydraulic Cylinder ensures multiple operational and economic benefits:
Welded construction reduces overall dimensions while maximizing strength.
Suitable for demanding environments with pressures up to 300 bar.
Seamless honed tubes and chrome-plated rods guarantee resistance against wear and corrosion.
Welded end caps eliminate potential leakage paths.
Double-acting function enables full power in both strokes.
Long-lasting seals and high-quality components reduce service intervals.
Bore sizes, stroke lengths, mounting styles, and ports can be tailored to customer needs.
The Welded Type Double Acting Hydraulic Cylinder undergoes a controlled and precise production workflow:
Raw Material Selection
High-grade seamless steel tubes and alloy steel rods are sourced.
Tube Processing
Cold-drawn and honed tubes provide accurate internal surface finish.
Rod Processing
Precision-machined rods are chrome plated for hardness and corrosion protection.
Welding of End Caps
Cylinder ends are welded for maximum strength and leak resistance.
Machining
Precision boring and threading ensure exact tolerances.
Seal Assembly
High-performance seals are installed for long-lasting operation.
Pressure Testing
Each cylinder is tested under working conditions to ensure zero leakage.
Surface Treatment
Painting, phosphating, or powder coating for enhanced corrosion resistance.
Final Inspection
Dimension checks, hardness tests, and performance validation before shipment.
The Welded Type Double Acting Hydraulic Cylinder is widely used across industries where compact yet powerful cylinders are required:
Excavators, bulldozers, loaders, and backhoes.
Harvesters, tractors, seeders, and sprayers.
Forklifts, cranes, lifts, and presses.
Drilling machines and underground transport equipment.
Press machines, steel mills, and automation systems.
Deck machinery, winches, and ship steering systems.
| Specification | Details |
|---|---|
| Product Name | Welded Type Double Acting Hydraulic Cylinder |
| Bore Size Range | 25 mm – 500 mm |
| Stroke Length | Up to 6000 mm (customizable) |
| Rod Diameter | 12 mm – 300 mm |
| Working Pressure | Up to 300 bar |
| Material | ST52 / CK45 / 42CrMo4 |
| Surface Finish | Chrome Plated Rod + Painted Cylinder Body |
| Seal Brand | Hallite / Parker / NOK (optional) |
| Temperature Range | -30°C to +120°C |
| Mounting Options | Clevis, Trunnion, Flange, Lug, Eye, Foot Mounting |
| Standard | ISO 6020/6022, DIN, or Custom |
Our factory maintains a strong inventory of Welded Type Double Acting Hydraulic Cylinders and semi-finished components to ensure quick delivery:
This allows distributors and stockists to minimize downtime and maintain continuous supply.
Every Welded Type Double Acting Hydraulic Cylinder undergoes strict quality control:
Bore, rod, and stroke accuracy checked with calibrated instruments.
Ensuring smooth honed tube finish for optimal seal life.
Rod hardness (HRC) and tube strength verified after heat treatment.
Ultrasonic and X-ray tests to detect any internal welding defects.
Cylinders tested under full load for sealing performance.
Corrosion resistance of chrome-plated rod is validated.
To guarantee international standards, our Welded Type Double Acting Hydraulic Cylinder is certified by:
Quality management system.
Environmental management.
Compliance with European safety standards.
Environmental and safety compliance.
For marine and offshore applications (optional).

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