Pressure Spring/Pneumatic Actuator for Polishing Heads

Product Specifications

Technical details and manufacturing context for Pressure Spring/Pneumatic Actuator

Definition

The pressure spring/pneumatic actuator is a critical component of the polishing head assembly responsible for generating and maintaining consistent pressure between the polishing tool and workpiece surface. It ensures uniform material removal and surface finish quality by compensating for surface irregularities and maintaining optimal contact force throughout the polishing operation. This actuator is available in two primary configurations: spring-based and pneumatic. Spring-based actuators rely on elastic deformation of a coil spring to produce a predetermined force, while pneumatic actuators use compressed air to generate adjustable force. Both types are designed to operate within specified parameters, including operating pressure of 1.0–1.6 MPa, stroke length of 10–50 mm, spring rate of 5–20 N/mm, force range of 50–500 N, and operating temperature of -20 to 80°C. For pneumatic versions, air supply pressure should be 0.4–0.8 MPa (ISO 8573-1), with air consumption of 0.1–0.5 L/min at 0.6 MPa supply. The actuator offers a response time of 0.1–0.5 seconds from signal to full stroke, repeatability of ±0.05 mm, and ingress protection rating of IP54–IP65 (IEC 60529). Materials used include stainless steel (grades 304/316 per ASTM A240), spring steel, aluminum alloy, and synthetic rubber seals. The weight ranges from 1.5 to 3.5 kg depending on size and configuration. These values are directory reference ranges and must be verified with the legal manufacturer for specific models and applications. The actuator is suitable for polishing operations where consistent pressure is essential for achieving desired surface finish and material removal rates.

Working Principle

The actuator operates by converting stored energy into linear mechanical force. In spring-based systems, elastic deformation of the spring stores potential energy, which is released as force when the spring is compressed or extended. In pneumatic systems, compressed air is supplied to a cylinder, and the pressure differential across the piston generates force. This force is transmitted to the polishing head, allowing it to maintain consistent pressure against the workpiece surface. The actuator compensates for minor variations in surface geometry or tool wear by adjusting the force output, either through spring preload adjustment or by regulating air pressure. This ensures uniform contact force throughout the polishing cycle, contributing to consistent material removal and surface finish quality.

Common Materials

Stainless steel, Spring steel, Aluminum alloy, Synthetic rubber seals

Technical Parameters

Parameter	Typical range	Notes & selection driver
Stroke Length	10–50 mm	Customizable per application
Spring Rate	5–20 N/mm	Determines force per mm deflection
Force Range	50–500 N	Adjustable via pressure or spring preload
Operating Temperature	-20–80 °C	Seals degrade above 80°C
Air Supply Pressure	0.4–0.8 MPa	For pneumatic actuationISO 8573-1
Air Consumption	0.1–0.5 L/min	At 0.6 MPa supply
Response Time	0.1–0.5 s	From signal to full stroke
Repeatability	±0.05 mm	Positioning accuracy
Ingress Protection	IP54–IP65	Dust and water resistanceIEC 60529
Material	304/316 SS	Corrosion resistantASTM A240
Weight	1.5–3.5 kg	Depends on size and configuration

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/rod assembly
Transmits force from actuator to polishing head

Material: Hardened steel
Pressure chamber/spring housing
Contains pneumatic pressure or spring mechanism

Material: Aluminum alloy
Seals/gaskets Part
Prevents pressure leakage and contamination

Material: Synthetic rubber
Mounting bracket Part
Secures actuator to polishing head assembly

Material: Steel
Pressure Spring
Stores and releases the force that keeps the polishing head pressed on the work.

Applied To / Applications

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

Polishing Head Assembly

View system integration details

Manufacturers of Pressure Spring/Pneumatic Actuator

Manufacturer profiles associated with Pressure Spring/Pneumatic Actuator.

Sourcing Pressure Spring/Pneumatic Actuator 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.

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 6 September 2026

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.

Frequently Asked Questions

What is the operating pressure range for this actuator?

According to the directory reference, the operating pressure range is 1.0–1.6 MPa. However, this is a reference range; you must verify the exact value for your specific model with the legal manufacturer.

What materials are used in the construction?

The materials on file include stainless steel (grades 304/316 per ASTM A240), spring steel, aluminum alloy, and synthetic rubber seals. Confirm material suitability for your application with the supplier.

What is the response time of the actuator?

The response time from signal to full stroke is 0.1–0.5 seconds, as listed in the directory. This is a reference value; actual response may vary based on model and operating conditions.

What is the ingress protection rating?

The ingress protection rating is IP54–IP65 per IEC 60529, indicating dust and water resistance. Verify the specific rating for your model with the manufacturer.

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.

Buyer enquiry

Request manufacturing insight for Pressure Spring/Pneumatic Actuator

Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.

Where it goes: Straight to the CNFX editorial desk, and to the manufacturer if this product is linked to a claimed profile. Nothing is broadcast to a supplier list.
Your details stay here: We do not sell or rent enquiry data, and we do not add you to a mailing list. Used only to answer this request.
No commission, no middleman: CNFX is a directory. We take no cut of any order and never negotiate on a supplier's behalf.
What we don't claim: A listing is not an endorsement. Qualify every supplier and verify every figure yourself before ordering.

pressure:	0 to 150 psi (spring) / 0 to 100 psi (pneumatic)
other spec:	Slurry concentration: ≤30% solids by weight, Flow rate: 5-50 L/min
temperature:	-20°C to 120°C

Pressure Spring/Pneumatic Actuator

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards