INDUSTRY COMPONENT

Cylinder Barrel

Cylinder barrel is the main structural housing of a pneumatic actuator that contains the piston and compressed air to generate linear motion.

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Component Specifications

Definition
The cylinder barrel is the cylindrical body of a pneumatic actuator that serves as the pressure vessel containing the piston assembly. It provides a sealed chamber where compressed air acts on the piston to create linear mechanical motion. The barrel must maintain structural integrity under operating pressures while providing a smooth, low-friction surface for piston movement. Precision machining ensures proper sealing and alignment with end caps and piston rods.
Working Principle
The cylinder barrel operates by containing compressed air that enters through ports, creating differential pressure across the piston. This pressure differential forces the piston to move linearly within the barrel, converting pneumatic energy into mechanical work. The barrel's smooth interior surface minimizes friction while maintaining air-tight seals with piston seals and end caps.
Materials
Typically made from aluminum alloy (6061-T6, 6082), stainless steel (304, 316), brass, or engineered polymers. Aluminum offers lightweight corrosion resistance, stainless steel provides durability in harsh environments, brass suits moderate conditions, and polymers serve lightweight applications.
Technical Parameters
  • Straightness 0.02 mm per 100 mm
  • Bore Diameter 32mm to 200mm
  • Surface Finish Ra 0.4 to 0.8 μm
  • Temperature Range -20°C to 80°C
  • Operating Pressure 1.5 to 16 bar
  • Roundness Tolerance IT6 to IT8
Standards
ISO 6432, ISO 15552, DIN ISO 6431, DIN 24554

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Cylinder Barrel.

pneumatic cylinder barrel actuator housing aluminum cylinder ISO 6432 bore diameter pneumatic components Cylinder Barrel Cylinder Barrel in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Pneumatic Actuator

A mechanical device that converts compressed air energy into linear or rotary motion to perform work within an industrial system.

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Hydraulic Ram

A hydraulic actuator that converts hydraulic pressure into linear mechanical force and motion.

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Hydraulic Cylinder

A mechanical actuator that converts hydraulic pressure into linear force and motion.

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Engineering Analysis

Risks & Mitigation
  • Internal corrosion from contaminated air
  • Wear from abrasive particles
  • Fatigue cracking from pressure cycling
  • Seal failure due to surface imperfections
FMEA Triads
Trigger: Contaminated compressed air containing moisture or particles
Failure: Internal scoring and accelerated wear of barrel surface
Mitigation: Install proper filtration (5μm filter) and air dryers in pneumatic systems
Trigger: Improper alignment during installation
Failure: Eccentric loading causing premature seal wear and reduced efficiency
Mitigation: Use precision mounting brackets and follow manufacturer alignment procedures

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Bore diameter tolerance: H8 to H9 per ISO 286, surface roughness: Ra ≤ 0.8 μm
Test Method
Pressure testing per ISO 4414, leak testing with helium mass spectrometry, dimensional verification with CMM

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What materials are best for cylinder barrels in corrosive environments?

Stainless steel (316 grade) or anodized aluminum provide excellent corrosion resistance for harsh environments with chemicals or moisture.

How does bore diameter affect cylinder performance?

Bore diameter determines force output (Force = Pressure × Area) and air consumption. Larger bores provide more force but require more compressed air.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

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.

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