Editorial Technical Reference

Lifting cylinder

This page explains how Lifting cylinder is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A hydraulic or pneumatic actuator that provides linear force for vertical movement in overhead lifting systems.

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Lifting cylinder in a manufacturing environment
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Product Specifications

Technical details and manufacturing context for Lifting cylinder

Definition
A lifting cylinder is a critical component of overhead lifting mechanisms that converts fluid pressure (hydraulic or pneumatic) into controlled linear motion to raise and lower loads. It typically consists of a cylindrical barrel, piston, piston rod, and seals, designed to withstand high forces while maintaining precise positioning and smooth operation in industrial applications. The cylinder operates by directing pressurized fluid into one side of the piston, creating a pressure differential that moves the piston and rod. Directional control valves regulate fluid flow to control speed and position. Lifting cylinders are available in various configurations, with bore diameters from 32 to 200 mm, stroke lengths from 50 to 1000 mm, and operating pressures from 1.0 to 16 MPa. They can generate maximum push forces from 2.0 to 63 kN and pull forces from 1.6 to 50 kN, depending on bore size and pressure. Piston speeds range from 0.1 to 1.5 m/s, and operating temperatures from -20 to 80°C. Materials include carbon steel, stainless steel, and aluminum alloy for the cylinder tube, with piston rods typically made of 45# steel (hard chrome plated). Seal materials are NBR for oil and PU for air. Mounting options include flange and foot types, and port sizes range from G1/8 to G1/2 (BSPP). Cushioning is adjustable to prevent end-of-stroke impact. Weight varies from 2 to 50 kg depending on bore and stroke. Standards referenced include ISO 6020-2 for bore diameter for operating pressure, ISO 8573-1 for temperature range, DIN 3771 for seal material, GB/T 699 for piston rod material, ISO 15552 for mounting type, and ISO 228-1 for port size. These standards serve as procurement references; actual compliance must be verified with the manufacturer. Always confirm model-specific values and standards with the legal manufacturer or supplier before selection.
Working Principle
The lifting cylinder operates by introducing pressurized fluid (hydraulic oil or compressed air) into one side of the cylinder chamber. This pressure acts on the piston face, creating a force that moves the piston and attached rod linearly. The direction of movement is controlled by a directional control valve that directs fluid to either side of the piston. By regulating the flow rate, the speed of extension or retraction can be adjusted. The force generated is proportional to the pressure and the effective piston area. Cushioning mechanisms at the ends of the stroke absorb kinetic energy to prevent impact. The cylinder's seals prevent fluid leakage and maintain pressure integrity.
Common Materials
Carbon steel, Stainless steel, Aluminum alloy
Technical Parameters
ParameterTypical rangeNotes & selection driver
Bore Diameter32–200 mmDetermines force outputISO 6020-2
Stroke Length50–1000 mmCustom lengths available
Operating Pressure1.0–16 MPa
Maximum Pull Force1.6–50 kNAt rated pressure
Maximum Push Force2.0–63 kNAt rated pressure
Operating Temperature Range-20–80 °COutside range seals degradeISO 8573-1
Piston Speed0.1–1.5 m/sHigher speeds require cushioning
Cushioning TypeAdjustablePrevents end-of-stroke impact
Seal MaterialNBR/PUNBR for oil, PU for airDIN 3771
Cylinder Tube MaterialAluminum/SteelSteel for high pressure
Piston Rod Material45# SteelHard chrome platedGB/T 699
Mounting TypeFlange/FootOther options availableISO 15552
Port SizeG1/8–G1/2BSPP threadISO 228-1
Weight2–50 kgDepends on bore and stroke

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Cylinder barrel
    Houses the piston and fluid, withstands internal pressure
    Material: Carbon steel
  • Piston
    Separates fluid chambers and transfers pressure to linear force
    Material: Steel with seals
  • Piston rod Part
    Transmits force from piston to external load
    Material: Chrome-plated steel
  • End caps Part
    Seal the cylinder ends and provide mounting points
    Material: Steel
  • Seals and gaskets Part
    Prevent fluid leakage and contamination
    Material: Polyurethane or nitrile rubber
  • Cushioning Mechanism
    Slows the piston at each end of the stroke so it does not slam into the cap.

Application & selection

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 300 bar (hydraulic), Up to 10 bar (pneumatic)
other spec: Flow Rate: 5-100 L/min (hydraulic), 100-1000 L/min (pneumatic); Slurry Concentration: Not recommended for abrasive slurries
temperature: -20°C to 80°C
Media Compatibility
✓ Hydraulic oil (ISO VG 32-68) ✓ Compressed air (filtered, lubricated) ✓ Water-glycol hydraulic fluids
Unsuitable: Corrosive chemical environments (acids, chlorides)
Sizing Data Required
  • Required lifting force (kN)
  • Stroke length (mm)
  • Operating pressure (bar)

Risk, maintenance & compliance

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Seal degradation
Cause: Contamination ingress, chemical incompatibility, or excessive heat leading to hardening, cracking, or extrusion of seals, resulting in internal or external leakage.
Rod scoring or pitting
Cause: Abrasive particles in hydraulic fluid, inadequate rod wiper seals, or misalignment causing metal-to-metal contact and surface damage, leading to seal failure and fluid loss.
Maintenance Indicators
  • Audible knocking or chattering during operation, indicating cavitation, air entrapment, or internal component wear.
  • Visible external hydraulic fluid leakage around rod seals, cylinder body, or fittings, often accompanied by reduced lifting force or drift.
Engineering Tips
  • Implement strict contamination control: use high-quality filters, maintain proper fluid cleanliness (e.g., ISO 4406 class), and ensure seals are compatible with operating fluids and temperatures.
  • Ensure proper alignment and mounting: avoid side-loading, use spherical bearings or misalignment couplers if needed, and regularly inspect rod surfaces and wipers for damage or debris.

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ISO 6020-2: Hydraulic fluid power - Mounting dimensions for single rod cylinders, 16 MPa series ANSI/NFPA T3.6.7 R1-2015: Fluid power cylinders - Method for determining the buckling load DIN ISO 3320: Fluid power systems and components - Cylinder bores and piston rod diameters and area ratios - Metric series

Quoted from the published standard.

Manufacturing Precision
  • Bore diameter: +/-0.02 mm
  • Surface finish (Ra): 0.4 μm maximum
Quality Inspection
  • Pressure test: 1.5 times maximum working pressure for 2 minutes
  • Hardness test: Brinell or Rockwell on piston rod and cylinder barrel
Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

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Manufacturers of Lifting cylinder

4 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

JW HYDRAULIC LIMITED
Shanghai, CN
Also makes: Hydraulic Cylinder, Power Unit, Hydraulic/Pneumatic Actuator and 9 more
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “hydraulic lifting cylinder”
View source page ↗ jwhydraulics.com · recorded 2026-09-12
View profile Send enquiry
Wuhan Hongda Hydraulics & Pneumatics
Wuhan, Hubei, CN
Also makes: Hydraulic Control Valves, Hydraulic Power Unit, Hydraulic Cylinders (if hydraulic) and 9 more
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Hydraulic Lifting Cylinder”
View source page ↗ fysci.com · recorded 2026-09-16
View profile Send enquiry
Wuxi Hengshui Machinery Co., Ltd.
Jiangsu, CN
Also makes: Hydraulic Cylinder, Hydraulic Press, Hydraulic Cylinders (if hydraulic)
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “› Crane & Lifting Cylinders”
View source page ↗ hxcylinder.com · recorded 2026-08-22
View profile Send enquiry
Zhejiang Aoweite Hydraulic Machinery Co.,Ltd.
Taizhou, Zhejiang, CN
Also makes: Hydraulic Cylinder, Hydraulic Pump, Solenoid Valve and 5 more
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Lifting Cylinder”
View source page ↗ aovite.com · recorded 2026-10-11
View profile Send enquiry

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Frequently Asked Questions

What is the typical bore diameter range for a lifting cylinder?

According to the directory, the bore diameter ranges from 32 to 200 mm, as per ISO 6020-2. However, you must verify the exact bore size for your specific model with the manufacturer.

What operating pressures are available?

The operating pressure range is 1.0 to 16 MPa. Always confirm the pressure rating for your application.

What materials are used for the cylinder tube and piston rod?

The cylinder tube can be made of aluminum or steel, while the piston rod is typically 45# steel with hard chrome plating, per GB/T 699. Seal materials are NBR for oil and PU for air, per DIN 3771.

How do I choose the right mounting type?

Mounting types include flange and foot, as per ISO 15552. The choice depends on your application's space and load direction. Consult the manufacturer for guidance and verify compatibility.

Data basis: editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Related equipment

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Overhead Lifting Mechanism
View system integration details

Industrial Ecosystem & Supply Chain Structure

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review · Page last updated 13 October 2026

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