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Since 2006
Welded Type Double Acting Hydraulic Cylinder
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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.

  • Welded Type

  • EAST AI

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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).

certificate


FAQ

FAQs
  • What does “double acting” mean in a hydraulic cylinder?
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    Double acting means the cylinder uses hydraulic pressure to both extend and retract the piston. It delivers power in two directions, unlike single acting cylinders which rely on an external force or gravity for return.
  • What are the benefits of a welded type cylinder over a tie-rod type?
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    Welded cylinders are more compact, stronger, and better suited for mobile or space-limited applications. They’re also more resistant to vibration and harsh conditions.
  • Can this cylinder handle continuous high-pressure operation?
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    Yes. The Welded Type Double Acting Hydraulic Cylinder is engineered to withstand pressures up to 300 bar (4350 PSI) when built with the appropriate seals and materials.
  • Is it possible to customize this hydraulic cylinder?
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    Absolutely. Stroke length, bore diameter, rod size, mounting ends, port positions, and seal types can all be tailored based on customer requirements.
  • What industries use this type of hydraulic cylinder most?
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    These cylinders are widely used in construction, mining, agriculture, marine, industrial automation, and anywhere Double Action Hydraulic Cylinders are needed for reliable performance.
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