EAST AI Hydraulic Manufacturer​

Since 2006

EAST AI Hydraulic  Manufacturer

Since 2006

Double Acting Plunger Cylinder

Double Acting Plunger Cylinder

The Double Acting Plunger Cylinder is a robust hydraulic cylinder designed to deliver linear force in both extension and retraction strokes. Unlike single-acting plunger cylinders, the Double Acting Plunger Cylinder uses hydraulic pressure alternately on both sides of the plunger rod, providing controlled bidirectional motion. This feature makes it highly suitable for applications that require frequent pushing and pulling under heavy loads. Manufactured from seamless honed tubes and chrome-plated rods, the Double Acting Plunger Cylinder provides excellent wear resistance, high strength, and extended service life. Its simple yet durable design reduces the risk of failure and minimizes maintenance downtime, making it a preferred choice for distributors, stockists, and engineering contractors in industries such as construction machinery, hydraulic presses, marine equipment, and material handling systems.
  • Model: Plunger Type
  • Brand: EAST AI
Product Description

Advantages of Double Acting Plunger Cylinder

The Double Acting Plunger Cylinder offers numerous benefits compared to single-acting or piston-type cylinders:

Bidirectional Force

Provides power in both directions, improving efficiency.

Durable Structure

Built with high-quality steel, honed tubes, and chrome-plated rods.

High Load Capacity

Withstands heavy-duty vertical and horizontal loads.

Smooth Operation

Precision honing ensures excellent sealing and low friction.

Reduced Maintenance

Fewer components minimize wear and breakdown risk.

Corrosion Resistance

Hard chrome plating protects against rust and abrasion.

Customizable Design

Available in multiple bore sizes, strokes, and mountings.

Energy Efficiency

Optimized design reduces hydraulic power loss.

Production Process of Double Acting Plunger Cylinder

The Double Acting Plunger Cylinder is manufactured under strict quality control standards. The production steps include:

  1. Raw Material Selection

    High-grade steels such as ST52, CK45, 42CrMo, or 20MnV6.

  2. Tube Honing

    Seamless tubes are honed to Ra ≤ 0.2 μm for superior sealing.

  3. Rod Processing

    Plunger rods undergo machining, induction hardening, and chrome plating.

  4. Precision Machining

    CNC machining ensures accurate dimensions and tolerances.

  5. Assembly

    End caps, seals, and rods are assembled to ensure structural integrity.

  6. Seal Installation

    Premium sealing systems (Parker, Hallite, NOK) prevent leakage.

  7. Pressure Testing

    Every cylinder is tested at 1.5 times its rated working pressure.

  8. Surface Treatment

    Painting, phosphating, or powder coating for corrosion resistance.

  9. Final Inspection

    Dimensional checks, hardness tests, and surface finish evaluations.

Applications of Double Acting Plunger Cylinder

The Double Acting Plunger Cylinder is widely used across various industries due to its high performance and bidirectional force capability:

Construction Machinery

Excavators, loaders, concrete machinery, and lifting platforms.

Material Handling

Elevators, hoists, and hydraulic lift systems.

Hydraulic Presses

Metal forming, stamping, forging, and injection molding machines.

Marine Applications

Ship deck machinery, offshore platforms, and lifting devices.

Agriculture Equipment

Tractors, harvesters, and tipping systems.

Mining Industry

Heavy-duty lifting and pushing in underground and surface operations.

Industrial Equipment

Assembly lines, compacting machines, and automation systems.

Product Details of Double Acting Plunger Cylinder

Specification Details
Product Name Double Acting Plunger Cylinder
Bore Size Range 50 mm – 400 mm
Stroke Length Up to 6000 mm (customized)
Working Pressure Up to 300 bar
Material ST52 / CK45 / 42CrMo / 20MnV6
Rod Surface Hard Chrome Plated, Induction Hardened
Seal Brand Parker / Hallite / NOK
Temperature Range -30°C to +120°C
Mounting Options Flange, Trunnion, Clevis, Eye Mount
Application Type Bidirectional load pushing and pulling
Standards ISO 6022 / DIN / Custom Options

Factory Inventory of Double Acting Plunger Cylinder

Our factory maintains a strong inventory of Double Acting Plunger Cylinder components to ensure quick delivery and large-volume supply:

Stock of honed tubes in multiple diameters.

Chrome-plated rods available in various lengths and hardness levels.

Semi-finished cylinders for customized production.

Popular models kept in ready-to-ship stock.

Monthly production capacity exceeding 12,000 hydraulic cylinders.

Fast logistics solutions for global distributors and engineering firms.

This guarantees our partners stable supply chains and competitive advantages in their local markets.

Quality Inspection of Double Acting Plunger Cylinder

Each Double Acting Plunger Cylinder undergoes multiple inspections to guarantee performance and safety:

Dimensional Testing

Accuracy of bore, rod, and length.

Surface Roughness Check

Honed finish measured to Ra ≤ 0.2 μm.

Hardness Test

Chrome rod hardness verified according to HRC standards.

Hydraulic Pressure Test

Every unit tested under 1.5x working pressure.

Welding Inspection

Non-destructive ultrasonic testing for joint integrity.

Corrosion Testing

Salt spray chamber tests to confirm chrome plating resistance.

Certificates of Double Acting Plunger Cylinder

The Double Acting Plunger Cylinder meets international quality and safety standards:

ISO 9001:2015

Quality management system.

ISO 14001

Environmental compliance certification.

CE Certification

Compliance with EU machinery safety requirements.

RoHS Compliance

Use of environmentally friendly materials.

DNV / GL / BV Approvals

Certification for marine and offshore applications.

certificate