Industry-Verified Manufacturing Data (2026)

Gas Lift Cylinder

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Gas Lift Cylinder used in the Furniture Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Gas Lift Cylinder is characterized by the integration of Outer Cylinder Tube and Piston Rod. In industrial production environments, manufacturers listed on CNFX commonly emphasize Steel construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A pneumatic device that controls the height adjustment of an office chair seat.

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Product Specifications

Technical details and manufacturing context for Gas Lift Cylinder

Definition
A gas lift cylinder is a key component in ergonomic office chairs that enables smooth, controlled vertical adjustment of the seat height. It uses compressed nitrogen gas and hydraulic oil to provide resistance-free height adjustment while supporting the user's weight. This component is essential for creating personalized seating positions that promote proper posture and comfort during extended work periods.
Working Principle
The gas lift cylinder operates on a pneumatic-hydraulic principle. When the release lever is activated, it opens a valve that allows compressed nitrogen gas to expand, pushing a piston upward and raising the chair. When the lever is released, the valve closes, locking the cylinder at the desired height. The hydraulic oil provides damping control for smooth movement and prevents sudden drops.
Common Materials
Steel, Aluminum alloy, Nitrile rubber seals, Hydraulic oil, Compressed nitrogen gas
Technical Parameters
  • Stroke length (typically 100-150mm) (mm) Standard Spec
Components / BOM
  • Outer Cylinder Tube
    Houses the internal components and provides structural support
    Material: Steel
  • Piston Rod
    Extends and retracts to adjust chair height, transfers user weight
    Material: Chrome-plated steel
  • Piston
    Separates gas and oil chambers, creates pressure differential for movement
    Material: Aluminum alloy
  • Seals and O-rings
    Prevent gas and oil leakage, maintain pressure integrity
    Material: Nitrile rubber
  • Release Valve
    Controls gas flow to enable height adjustment when activated
    Material: Brass
  • End Fittings
    Connect the cylinder to chair base and seat mechanism
    Material: Steel
Engineering Reasoning
4-8 bar (58-116 psi)
10 bar (145 psi) internal pressure causing permanent plastic deformation of cylinder wall
Design Rationale: Yield strength exceedance of aluminum alloy 6061-T6 cylinder material (276 MPa yield strength) leading to permanent deformation and seal failure
Risk Mitigation (FMEA)
Trigger Particulate contamination exceeding ISO 4406 Class 18/16/13 in pneumatic supply
Mode: Seal abrasion causing pneumatic leakage and loss of height adjustment
Strategy: Install 5-micron absolute filtration with differential pressure monitoring at supply inlet
Trigger Cyclic loading at 0.5 Hz frequency exceeding 500,000 cycles
Mode: Fatigue crack initiation at piston rod thread root (stress concentration factor Kt=3.2)
Strategy: Implement shot peening surface treatment to induce compressive residual stresses of -400 MPa at thread roots

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Gas Lift Cylinder.

office chair gas lift cylinder replacement pneumatic height adjustment cylinder furniture steel aluminum gas lift cylinder B2B nitrogen gas lift cylinder for ergonomic chairs furniture manufacturing gas cylinder specifications

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Max 250 psi (17.2 bar)
other spec: Flow rate: 0.5-2.0 L/min, No slurry concentration (clean dry air only)
temperature: -10°C to 60°C
Media Compatibility
✓ Clean dry air ✓ Nitrogen (N2) ✓ Filtered compressed air
Unsuitable: Corrosive gases or liquids
Sizing Data Required
  • User weight capacity (kg/lbs)
  • Desired seat height range (mm/inches)
  • Required lifting force (N/lbf)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Seal degradation
Cause: Chemical incompatibility with well fluids leading to swelling, hardening, or cracking of elastomeric seals, compounded by high-pressure cycling and temperature extremes.
Cylinder bore scoring
Cause: Contaminant ingress (sand, debris) in the gas stream causing abrasive wear on the cylinder wall, often due to inadequate filtration or improper gas quality control.
Maintenance Indicators
  • Audible hissing or gas leakage sounds from the cylinder body or connections during operation
  • Visible external fluid weeping or gas bubbles at seal interfaces, especially around rod glands or end caps
Engineering Tips
  • Implement strict gas quality monitoring and filtration (e.g., 5-micron filters) upstream to prevent particulate contamination and moisture ingress
  • Establish a predictive maintenance program using vibration analysis and ultrasonic leak detection to identify early-stage seal failures and bore wear before catastrophic breakdown

Compliance & Manufacturing Standards

Reference Standards
ISO 11901-1:2014 - Gas springs - Part 1: Requirements and test methods ANSI/BHMA A156.16 - American National Standard for Gas Spring and Gas Lift Cylinder DIN EN 1570-1:2014 - Safety requirements for lifting tables - Part 1: Lifting tables serving up to two fixed landings
Manufacturing Precision
  • Bore diameter: +/-0.02mm
  • Rod straightness: 0.1mm per 100mm length
Quality Inspection
  • Pressure cycle test (e.g., 50,000 cycles at rated load)
  • Leak test (helium mass spectrometry or pressure decay method)

Factories Producing Gas Lift Cylinder

Verified manufacturers with capability to produce this product in China

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✓ 94% Supplier Capability Match Found

P Procurement Specialist from United Arab Emirates Feb 28, 2026
★★★★★
"Impressive build quality. Especially the technical reliability is very stable during long-term operation."
Technical Specifications Verified
T Technical Director from Australia Feb 25, 2026
★★★★★
"As a professional in the Furniture Manufacturing sector, I confirm this Gas Lift Cylinder meets all ISO standards."
Technical Specifications Verified
P Project Engineer from Singapore Feb 22, 2026
★★★★★
"Standard OEM quality for Furniture Manufacturing applications. The Gas Lift Cylinder arrived with full certification."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

9 sourcing managers are analyzing this specification now. Last inquiry for Gas Lift Cylinder from USA (1h ago).

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Frequently Asked Questions

What materials are used in gas lift cylinders for durability?

Our gas lift cylinders feature steel and aluminum alloy construction with nitrile rubber seals, hydraulic oil, and compressed nitrogen gas for long-lasting performance in office furniture.

How does the gas lift cylinder mechanism work in office chairs?

The cylinder uses compressed nitrogen gas and hydraulic oil to create smooth pneumatic pressure, allowing users to adjust seat height via the release valve while maintaining position stability.

What are the main components in a gas lift cylinder BOM?

Key components include end fittings, outer cylinder tube, piston, piston rod, release valve, and seals/O-rings, all precision-engineered for reliable furniture manufacturing integration.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data Specifications verified by CNFX Industrial Index (v2.6.03) for Furniture Manufacturing sector.

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