Single Rod Plunger Cylinder
The Single Rod Plunger Cylinder is a specialized type of hydraulic cylinder designed for applications requiring strong linear pushing or lifting force. Unlike piston-type cylinders, the Single Rod Plunger Cylinder operates with a plunger rod moving directly inside the cylinder barrel, without the need for an internal piston. This design makes it simple, durable, and cost-effective, especially for heavy-duty vertical load lifting.
Constructed from seamless honed tubes and induction-hardened chrome-plated rods, the Single Rod Plunger Cylinder offers excellent wear resistance, high load capacity, and long service life. It is widely used in lifting platforms, hydraulic presses, metallurgical machinery, and construction equipment. With fewer components and robust design, it reduces maintenance needs and ensures maximum reliability for distributors, stockists, and engineering contractors.
Model:Plunger Type
Brand:EAST AI
Product Description
Advantages of Single Rod Plunger Cylinder
The Single Rod Plunger Cylinder offers unique advantages that make it one of the most widely applied hydraulic cylinders in industrial and construction equipment:
Simple structure
Fewer components reduce failure risk and simplify maintenance.
High load capacity
Capable of supporting vertical loads in heavy-duty lifting applications.
Durability
Chrome-plated rods ensure resistance to corrosion and abrasion.
Cost-effectiveness
Lower production and maintenance costs compared to piston cylinders.
Compact design
Ideal for limited-space applications requiring strong linear force.
Customizable options
Available in different diameters, strokes, and mounting styles.
Leak-resistant seals
Advanced sealing systems minimize hydraulic fluid leakage.
Long service life
Optimized surface finish ensures smooth operation and reduced wear.
Production Process of Single Rod Plunger Cylinder
The Single Rod Plunger Cylinder is produced through a precise and standardized manufacturing process to ensure performance and durability:
Material Selection
High-grade steels such as ST52, CK45, or 42CrMo4 are used.
Tube Processing
Cylinder barrels are honed to Ra ≤ 0.2 μm for optimal sealing.
Rod Processing
Plunger rods are machined, induction-hardened, and chrome-plated.
Machining & Turning
CNC machining ensures accurate dimensions and tolerances.
Welding & End Fittings
Structural welding guarantees high mechanical strength.
Seal Installation
Imported seals (Parker, Hallite, NOK) provide durability and leak protection.
Hydraulic Testing
Each cylinder is tested under rated and overload pressures.
Surface Treatment
Painting, phosphating, or powder coating enhances corrosion resistance.
Final Inspection
Dimensional, surface roughness, and hardness checks are performed before delivery.
Applications of Single Rod Plunger Cylinder
The Single Rod Plunger Cylinder is widely applied in industries requiring vertical lifting, strong pushing force, and compact structure:
Construction Machinery
Lifting equipment, scaffolding, and concrete machinery.
Metallurgical Equipment
Steel mills, smelting equipment, and foundries.
Hydraulic Presses
Forging presses, stamping machines, and metal forming equipment.
Material Handling
Lifting platforms, elevators, and hydraulic lifts.
Agricultural Equipment
Loaders, sprayers, and tipping mechanisms.
Mining Equipment
Underground lifting systems and heavy-duty mining machinery.
Marine Applications
Ship lifting devices and offshore platforms.
Product Details of Single Rod Plunger Cylinder
Specification | Details |
Product Name | Single Rod Plunger Cylinder |
Bore Size Range | 40 mm – 400 mm |
Stroke Length | Up to 6000 mm (customized) |
Working Pressure | Up to 250 bar |
Material | ST52 / CK45 / 42CrMo4 |
Rod Surface | Hard Chrome Plated, Induction Hardened |
Seal Brand | Parker / Hallite / NOK |
Temperature Range | -30°C to +120°C |
Mounting Options | Flange, Clevis, Trunnion, Eye Mount |
Application Type | Vertical load lifting / pushing |
Standards | ISO 6022 / DIN / Custom Options |
Factory Inventory of Single Rod Plunger Cylinder
We maintain a large factory inventory of Single Rod Plunger Cylinder and semi-finished components to meet urgent delivery needs:
Stock of honed tubes in multiple bore sizes.
Large inventory of chrome-plated and hardened rods.
Semi-finished plunger cylinders for customization.
Ready-to-ship cylinders in popular specifications.
Monthly production capacity of over 10,000 hydraulic cylinders.
Strong logistics support for global shipping.
This ensures that distributors, stockists, and engineering firms can maintain reliable supply chains and reduce project delays.
Quality Inspection of Single Rod Plunger Cylinder
The Single Rod Plunger Cylinder undergoes rigorous testing and quality assurance before leaving the factory:
Dimensional Inspection
Bore, rod, and length verified for precision.
Surface Roughness Check
Honed finish measured to Ra ≤ 0.2 μm.
Hardness Test
Rod surface hardness controlled within required HRC range.
Hydraulic Pressure Test
All units tested at 1.5 times working pressure.
Welding Examination
Ultrasonic testing for structural integrity.
Corrosion Resistance Test
Chrome plating verified in salt spray chamber.
Certificates of Single Rod Plunger Cylinder
The Single Rod Plunger Cylinder is certified to meet international quality and safety standards, including:
ISO 9001:2015
Quality management system.
ISO 14001
Environmental compliance certification.
CE Certification
Conformity with EU machinery directives.
RoHS Compliance
Environmentally safe materials and processes.
DNV / GL / BV Approvals
Certification for marine and offshore applications.
