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.

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
ParameterTypical rangeNotes & selection driver
Straightness0.02 mm per 100 mm
Bore Diameter32mm to 200mm
Surface FinishRa 0.4 to 0.8 μm
Temperature Range-20°C to 80°C
Operating Pressure1.5 to 16 bar
Roundness ToleranceIT6 to IT8

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

Standards
ISO 6432, ISO 15552, DIN ISO 6431, DIN 24554

Parent Products

This component is used in the following industrial products

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

Typical Suppliers & Equivalents

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

A practical evidence checklist for RFQ preparation and supplier evaluation.

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.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Cylinder Barrel

Manufacturer profiles associated with Cylinder Barrel.

Sourcing Cylinder Barrel from China?
Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.
Request manufacturers We manufacture this

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Related Components

Chrome Plating
Hard chrome plating is an electroplating process that deposits a layer of chromium onto metal surfaces to enhance wear resistance, corrosion protection, and reduce friction for hydraulic cylinder piston rods.
Upper Tool (Punch)
Upper Tool (Punch) is the active forming component in metal plate bending machines that applies precise downward force to create bends in sheet metal.
Main Frame
The main frame is the primary structural component of a hydraulic press, providing rigidity and stability to withstand high compressive forces during metal forming operations.
Shaft Bearing
Precision component supporting rotating shafts in vibration motors to reduce friction and maintain alignment.

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.

Data Basis

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

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.

Request Manufacturing Insight for Cylinder Barrel

Thank you. Your request has been sent. We'll respond within 1–3 business days.
Sorry, we couldn't send your message. Please try again, or email us at contact@cnfx.com.
Crossbeam Cylinder Barrel (Hydraulic)
Get QuotesChat