Editorial Technical Reference

Pneumatic Actuator

This page explains how Pneumatic Actuator 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 mechanical device that converts compressed air energy into linear or rotary motion to perform work within an industrial system.

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Pneumatic Actuator

Definition
A pneumatic actuator is a core component within industrial systems that utilizes compressed air as its power source to generate controlled mechanical motion. It serves as the interface between the control system and the physical process, translating pneumatic signals into precise linear or rotary movements to operate valves, gates, clutches, brakes, or other mechanical elements. Its role is critical for automation, positioning, and force application in manufacturing, processing, and material handling applications. The actuator functions by channeling compressed air into one or more chambers, typically separated by a piston or diaphragm. The differential pressure created across this moving element generates a force. In a linear actuator, this force pushes or pulls a rod. In a rotary actuator (vane or piston type), the force creates torque on a shaft. The direction and speed of motion are controlled by regulating the air flow into and out of the chambers via solenoid valves, while the force/torque output is a function of the air pressure and the effective area of the piston or diaphragm. Typical materials include aluminum alloy, stainless steel, nitrile rubber, and polyurethane. Key parameters include torque output (10–1000 N·m at 0.6 MPa, ISO 5211), stroke angle (0–90°, ISO 5211), air consumption (0.5–50 L/min at 0.6 MPa and 1 Hz, ISO 1219), operating temperature (-20–80 °C for NBR seals, ISO 5211), IP rating (IP65–IP67, IEC 60529), body material (6061-T6 aluminum alloy, ASTM B211), shaft material (17-4PH stainless steel, ASTM A564), weight (1.5–25 kg), mounting flange (F03–F25, ISO 5211), air connection (G1/8–G1/2, ISO 228-1), and cycle life (1,000,000 cycles minimum). These values are reference ranges; verify model-specific data with the manufacturer.
Working Principle
Compressed air is directed into one or more chambers separated by a piston or diaphragm. The pressure differential across the moving element generates a force. In linear actuators, this force moves a rod; in rotary actuators, it creates torque on a shaft. Solenoid valves regulate air flow into and out of the chambers to control direction and speed. Output force or torque depends on air pressure and the effective area of the piston or diaphragm.
Common Materials
Aluminum Alloy, Stainless Steel, Nitrile Rubber, Polyurethane
Technical Parameters
ParameterTypical rangeNotes & selection driver
Torque Output10–1000 N·mAt 0.6 MPa supply pressureISO 5211
Stroke Angle0–90 °Adjustable 0–90° for quarter-turn valvesISO 5211
Air Consumption0.5–50 L/minAt 0.6 MPa and 1 Hz cyclingISO 1219
Operating Temperature-20–80 °CFor standard NBR seals; optional FKM for higherISO 5211
IP RatingIP65–IP67Dust-tight and protected against water jetsIEC 60529
Body Material6061-T6Aluminum alloy with hard anodized coatingASTM B211
Shaft Material17-4PHStainless steel for corrosion resistanceASTM A564
Weight1.5–25 kgDepends on size and torque rating
Mounting FlangeF03–F25Standard bolt pattern for valve mountingISO 5211
Air ConnectionG1/8–G1/2BSP thread for air supplyISO 228-1
Cycle Life1000000 cyclesMinimum at rated load and speed

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 Part
    Houses the piston and contains the compressed air. Provides the guiding surface for piston movement.
    Material: Aluminum Alloy or Stainless Steel
  • Piston Part
    The moving element sealed within the barrel. The pressurized air acts upon its surface area to create force.
    Material: Aluminum Alloy with Seals
  • Piston Rod Part
    Extends from the piston to transmit the generated force to the external load.
    Material: Chrome-plated Steel or Stainless Steel
  • End Caps Part
    Seal the ends of the cylinder barrel and often contain ports for air inlet/outlet and rod seals.
    Material: Aluminum Alloy or Cast Iron
  • Seals (Piston & Rod) Part
    Prevent air leakage between the piston and barrel and around the rod, maintaining pressure differential.
    Material: Nitrile Rubber (NBR) or Polyurethane (PU)

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Pneumatic Actuator.

Applied To / Applications

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

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 1.5 to 10 bar operating, 12 bar max (typical)
other spec: Flow rate: 0.5-50 L/s (depending on bore size), Slurry concentration: Not recommended for abrasive slurries >5% solids
temperature: -20°C to 80°C (standard), -40°C to 120°C (special seals)
Media Compatibility
✓ Clean dry air ✓ Inert gases (N2, CO2) ✓ Non-corrosive process fluids
Unsuitable: Corrosive chemicals or high-purity oxygen environments
Sizing Data Required
  • Required force/thrust (N)
  • Operating pressure (bar)
  • Stroke length (mm)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Seal degradation
Cause: Incompatible lubricants or contaminants causing swelling, hardening, or cracking of elastomeric seals, leading to air leaks and reduced actuation force.
Corrosion and internal fouling
Cause: Moisture or particulate contamination in the compressed air supply, causing rust, scale buildup, or blockage in air passages and moving parts.
Maintenance Indicators
  • Audible hissing or air leaks around the actuator body or fittings during operation
  • Erratic, slow, or incomplete movement of the actuator rod during cycling
Engineering Tips
  • Install and maintain high-quality air preparation units (FRLs - Filters, Regulators, Lubricators) with proper moisture separation and filtration down to 5 microns or less.
  • Implement a routine lubrication schedule using manufacturer-recommended pneumatic oil, and conduct regular visual inspections for external damage, leaks, and proper mounting alignment.

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 6431: Pneumatic fluid power - Standard cylinders, 10 bar (1000 kPa) series - Mounting dimensions ANSI/ASME B40.1: Gauges - Pressure Indicating Dial Type - Elastic Element DIN ISO 15552: Pneumatic fluid power - Cylinders with detachable mountings, 1 000 kPa (10 bar) series - Mounting dimensions

Quoted from the published standard.

Manufacturing Precision
  • Bore diameter: +/-0.02 mm
  • End cover flatness: 0.1 mm per 100 mm length
Quality Inspection
  • Pressure test: Leakage and burst pressure verification per rated specifications
  • Dimensional inspection: Critical mounting and interface measurements verification

Manufacturers of Pneumatic Actuator

12 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.

ZFA Valve
Tianjin, Tianjin, CN
Founded 2006
ISO9001 CE WRAS ISO14001 +2
Also makes: Gate/Valve, Valve Actuator, Butterfly Valve and 2 more
Managed by the manufacturer
Listed on the company's own website
BCST Group
Shanghai, CN
Listed on the company's own website · profile compiled by CNFX from public sources
DONGGUAN MISSION GAUGE & FIXTURE CO.,LTD.
Guangdong, CN
Founded 2013
Listed on the company's own website · profile compiled by CNFX from public sources
AUTORUN Control
Shanghai, CN
Also makes: Butterfly Valve, Control Valve, Pinch Valve and 9 more
Listed on the company's own website · profile compiled by CNFX from public sources
Convista
Beijing, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Donjoy Technology
Wenzhou, Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Fescolo Pneumatic Co., Ltd.
Ningbo, Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
FREYA Electric Actuator
Tianjin, CN
Listed on the company's own website · profile compiled by CNFX from public sources
GEYA
Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Hearken Flow
Tianjin, CN
Also makes: Butterfly Valve, Ball Valve, Knife Gate Valve and 9 more
Listed on the company's own website · profile compiled by CNFX from public sources
HEYUE Valve Actuator
Zhejiang, CN
Also makes: Butterfly Valve, Ball Valve, Knife Gate Valve and 7 more
Listed on the company's own website · profile compiled by CNFX from public sources
HTS NEW MATERIALS
Jiangxi, CN
Listed on the company's own website · profile compiled by CNFX from public sources
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Frequently Asked Questions

What is the operating pressure range for this pneumatic actuator?

Always confirm the exact range for your specific model with the manufacturer.

What torque output can I expect?

The reference torque output is 10–1000 N·m at 0.6 MPa supply pressure, per ISO 5211. Actual torque depends on the actuator size and air pressure; verify with the manufacturer for your application.

What are the temperature limits?

The standard operating temperature range is -20 to 80 °C for NBR seals, per ISO 5211. For higher temperatures, optional FKM seals may be available, but confirm with the manufacturer.

What IP rating does it have?

The reference IP rating is IP65–IP67, per IEC 60529, meaning it is dust-tight and protected against water jets. Verify the exact rating for your model, as it may vary with options.

Data Basis

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

Preliminary Technical Classification
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