Editorial Technical Reference

Actuator (Pneumatic/Servo)

This page explains how Actuator (Pneumatic/Servo) is classified within Food 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 energy into motion to control valve operation in aseptic filling systems.

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Actuator (Pneumatic/Servo) in a manufacturing environment
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Product Specifications

Technical details and manufacturing context for Actuator (Pneumatic/Servo)

Definition
An actuator is a critical component of the Aseptic Filling Valve Assembly that provides the precise mechanical force needed to open, close, or modulate the valve during sterile filling operations. It ensures accurate positioning and movement control to maintain aseptic conditions while handling liquid products. The actuator is available in two primary types: pneumatic and servo. Pneumatic actuators use compressed air to create linear or rotary motion through pistons or diaphragms, while servo actuators use electric motors with feedback control systems for precise positioning. Both types convert energy into mechanical movement to operate the valve mechanism. The actuator is designed for use in food manufacturing environments, particularly in aseptic filling systems where hygiene and precision are paramount. Materials on file include stainless steel (316L), aluminum alloy, and engineering plastics such as PTFE and PEEK. Key parameters include operating pressure (1.0–1.6 MPa), supply voltage (24 V DC ±10% for servo actuators), control signal (4–20 mA per IEC 60381), stroke length (15–60 mm), positioning accuracy (±0.05% for servo actuators), response time (0.5–2.0 s), operating temperature (-40–85°C per IEC 60721-3-4), ingress protection (IP54–IP65 per IEC 60529), body material (316L per ASTM A240), and weight (5–25 kg). These values are directory reference ranges and must be confirmed for the specific model and application. Always verify model-specific values and standards with the legal manufacturer or supplier before procurement.
Working Principle
Pneumatic actuators operate by converting compressed air pressure into mechanical motion. Air is supplied to a piston or diaphragm, creating linear or rotary movement that opens, closes, or modulates the valve. Servo actuators use an electric motor with a feedback control system, such as an encoder or resolver, to achieve precise positioning. The control signal (typically 4–20 mA) commands the desired position, and the feedback loop adjusts the motor to maintain accuracy. Both types provide the force and movement required to operate the valve mechanism in aseptic filling systems.
Common Materials
Stainless steel (316L), Aluminum alloy, Engineering plastics (PTFE, PEEK)
Technical Parameters
ParameterTypical rangeNotes & selection driver
Operating Pressure1.0–1.6 MPa
Supply Voltage24 ±10% V DCFor servo actuators; pneumatic actuators do not require
Control Signal4–20 mAStandard analog control for servo actuatorsIEC 60381
Stroke Length15–60 mmDepends on valve size
Positioning Accuracy±0.05 %For servo actuators
Response Time0.5–2.0 sFull stroke time
Operating Temperature-40–85 °CExtended range for aseptic environmentsIEC 60721-3-4
Ingress ProtectionIP54–IP65Higher IP for washdown areasIEC 60529
Body Material316LStainless steel for corrosion resistanceASTM A240
Weight5–25 kgDepends on actuator size

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
  • Piston/cylinder assembly
    Converts air pressure into linear motion
    Material: Stainless steel
  • Position sensor
    Provides feedback for precise control
    Material: Electronic components
  • Seals and gaskets Part
    Maintains pressure integrity and prevents contamination
    Material: Food-grade elastomers (EPDM, silicone)
  • Electric Motor Optional
    Drives the valve stem on servo-type actuators, in place of the air cylinder.

Application & selection

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 10 bar (pneumatic), 0 to 150 bar (servo hydraulic)
flow rate: Up to 60,000 L/h (depending on valve size)
temperature: -20°C to 120°C
slurry concentration: Up to 40% solids by weight
Media Compatibility
✓ Sterile water for injection (WFI) ✓ High-viscosity pharmaceutical suspensions ✓ Aseptic dairy products
Unsuitable: Corrosive chemical slurries with pH <2 or >12
Sizing Data Required
  • Required valve stroke length (mm)
  • Maximum operating pressure (bar)
  • Cycle frequency (cycles/hour)

Risk, maintenance & compliance

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Seal degradation
Cause: Contamination ingress (moisture, particulates) or incompatible lubricants causing hardening/cracking of elastomeric seals
Position feedback failure
Cause: Encoder/sensor contamination, electrical noise interference, or mechanical misalignment in servo systems
Maintenance Indicators
  • Audible hissing or air leaks indicating seal failure or fitting issues in pneumatic actuators
  • Erratic movement or position drift beyond tolerance limits suggesting feedback or control system problems
Engineering Tips
  • Implement proper filtration (5 micron for pneumatic, 3 micron for servo hydraulic) and moisture separation in supply lines
  • Establish regular calibration cycles for servo feedback systems and verify pneumatic pressure/flow parameters monthly

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 15552: Pneumatic fluid power - Standard cylinders ANSI/NFPA T3.6.7: Fluid power systems and components - Cylinders - Bore and rod dimensions and mounting dimensions DIN ISO 6432: Pneumatic fluid power - Single rod cylinders, 10 bar (1000 kPa) series - Bore and rod dimensions and mounting dimensions

Quoted from the published standard.

Manufacturing Precision
  • Bore diameter: +/-0.02 mm
  • Rod straightness: 0.05 mm per 100 mm length
Quality Inspection
  • Leakage test: Pressure decay method per ISO 19973-1
  • Endurance test: Cycle life verification per ISO 19973-2
Technical documentation
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Manufacturing capability
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Inspection readiness
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Supplier transparency
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Manufacturers of Actuator (Pneumatic/Servo)

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Frequently Asked Questions

What is the operating pressure range for this actuator?

The directory lists an operating pressure range of 1.0–1.6 MPa. Confirm the exact range for your specific model with the manufacturer.

Does the actuator require a supply voltage?

Servo actuators require a 24 V DC supply voltage (±10%). Pneumatic actuators do not require an electrical supply for operation, but may need it for position feedback or control if equipped.

What control signal is used for servo actuators?

Servo actuators typically use a standard analog control signal of 4–20 mA, per IEC 60381. This signal commands the desired valve position.

What is the operating temperature range?

The directory lists an operating temperature range of -40 to 85°C, per IEC 60721-3-4, which is extended for aseptic environments. Verify the range for your application with the manufacturer.

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:

Aseptic Filling Valve Assembly
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 12 October 2026

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