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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:

  1. Raw Material Selection

    High-grade seamless steel tubes and alloy steel rods are sourced.

  2. Tube Processing

    Cold-drawn and honed tubes provide accurate internal surface finish.

  3. Rod Processing

    Precision-machined rods are chrome plated for hardness and corrosion protection.

  4. Welding of End Caps

    Cylinder ends are welded for maximum strength and leak resistance.

  5. Machining

    Precision boring and threading ensure exact tolerances.

  6. Seal Assembly

    High-performance seals are installed for long-lasting operation.

  7. Pressure Testing

    Each cylinder is tested under working conditions to ensure zero leakage.

  8. Surface Treatment

    Painting, phosphating, or powder coating for enhanced corrosion resistance.

  9. 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).


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