

Welded Type Double Acting Hydraulic Cylinder
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.
Model:Welded Type
Brand:EAST AI
Product Description
Advantages of Welded Type Double Acting Hydraulic Cylinder
Choosing a Welded Type Double Acting Hydraulic Cylinder ensures multiple operational and economic benefits:
Compact design
Welded construction reduces overall dimensions while maximizing strength.
High pressure capacity
Suitable for demanding environments with pressures up to 300 bar.
Durability
Seamless honed tubes and chrome-plated rods guarantee resistance against wear and corrosion.
Leak-free performance
Welded end caps eliminate potential leakage paths.
Efficiency
Double-acting function enables full power in both strokes.
Low maintenance
Long-lasting seals and high-quality components reduce service intervals.
Customization
Bore sizes, stroke lengths, mounting styles, and ports can be tailored to customer needs.
Production Process of Welded Type Double Acting Hydraulic Cylinder
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.
Applications of Welded Type Double Acting Hydraulic Cylinder
The Welded Type Double Acting Hydraulic Cylinder is widely used across industries where compact yet powerful cylinders are required:
Construction Equipment
Excavators, bulldozers, loaders, and backhoes.
Agricultural Machinery
Harvesters, tractors, seeders, and sprayers.
Material Handling
Forklifts, cranes, lifts, and presses.
Mining & Tunneling
Drilling machines and underground transport equipment.
Industrial Equipment
Press machines, steel mills, and automation systems.
Marine & Offshore
Deck machinery, winches, and ship steering systems.
Product Details of Welded Type Double Acting Hydraulic Cylinder
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 |
Factory Inventory of Welded Type Double Acting Hydraulic Cylinder
Our factory maintains a strong inventory of Welded Type Double Acting Hydraulic Cylinders and semi-finished components to ensure quick delivery:
Ready-to-ship cylinders in standard bore sizes and strokes.
Stock of honed tubes and chrome-plated rods for rapid assembly.
Dedicated warehouse for finished cylinders with protective packaging.
Production capacity of 10,000+ cylinders per month ensures bulk order fulfillment.
This allows distributors and stockists to minimize downtime and maintain continuous supply.
Quality Inspection of Welded Type Double Acting Hydraulic Cylinder
Every Welded Type Double Acting Hydraulic Cylinder undergoes strict quality control:
Dimensional Inspection
Bore, rod, and stroke accuracy checked with calibrated instruments.
Surface Roughness Testing
Ensuring smooth honed tube finish for optimal seal life.
Hardness Testing
Rod hardness (HRC) and tube strength verified after heat treatment.
Welding Inspection
Ultrasonic and X-ray tests to detect any internal welding defects.
Pressure & Leakage Test
Cylinders tested under full load for sealing performance.
Salt Spray Test
Corrosion resistance of chrome-plated rod is validated.
Certificates of Welded Type Double Acting Hydraulic Cylinder
To guarantee international standards, our Welded Type Double Acting Hydraulic Cylinder is certified by:
ISO 9001:2015
Quality management system.
ISO 14001
Environmental management.
CE Certification
Compliance with European safety standards.
RoHS Compliance
Environmental and safety compliance.
DNV / GL / BV Approvals
For marine and offshore applications (optional).
