Pressure Chamber/Spring Housing for Pneumatic Actuators

Product Specifications

Technical details and manufacturing context for Pressure chamber/spring housing

Definition

The pressure chamber/spring housing is a structural component of a pneumatic actuator, serving as the sealed enclosure for the pressure chamber and the spring assembly. Its primary function is to maintain pressure integrity by containing the compressed air or gas that drives the actuator, while providing structural support for the spring mechanism. The housing protects internal components from environmental contaminants such as dust, moisture, and debris, and it allows controlled movement of the actuator rod through its seals and guides. This component is typically manufactured from stainless steel, aluminum alloy, or carbon steel, with material selection based on application requirements such as corrosion resistance, weight, and strength. Key parameters include operating pressure (1.0–1.6 MPa), burst pressure (3.2 MPa), operating temperature (-40 to 85°C), spring rate (50–200 N/mm), stroke length (10–100 mm), surface roughness (Ra 0.8–1.6 μm), wall thickness (3–8 mm), weight (0.5–5 kg), material grade (e.g., 316L per ASTM A240), and IP rating (IP65–IP68 per IEC 60529). These values are reference ranges and must be verified for the specific model and application. The housing is designed to withstand the forces generated during actuator operation, ensuring reliable performance and safety. It is essential to confirm that the housing meets the required standards and specifications for the intended use, as improper selection can lead to seal failure, or structural damage. Regular inspection and maintenance are recommended to detect wear, corrosion, or seal degradation. For procurement, verify the exact dimensions, material grade, and pressure ratings with the manufacturer or supplier.

Working Principle

The housing contains a sealed pressure chamber where compressed air or gas is introduced. The pressure acts on a piston or diaphragm, creating a force that compresses the spring. The housing guides the spring's compression and expansion while maintaining pressure seals and structural integrity. During operation, the spring provides a return force when pressure is released, and the housing ensures that the actuator rod moves in a controlled manner. The design must balance pressure containment, spring guidance, and environmental protection.

Common Materials

Stainless steel, Aluminum alloy, Carbon steel

Technical Parameters

Parameter	Typical range	Notes & selection driver
Operating Pressure	1.0–1.6 MPa
Burst Pressure	3.2 MPa	Minimum burst pressure for safety
Operating Temperature	-40–85 °C	Seal material limits
Spring Rate	50–200 N/mm	Determines actuation force
Stroke Length	10–100 mm	Matches actuator travel
Surface Roughness	Ra 0.8–1.6 μm	Sealing surface finish
Wall Thickness	3–8 mm	Pressure containment
Weight	0.5–5 kg	Depends on size and material
Material Grade	316L	Corrosion resistanceASTM A240
IP Rating	IP65–IP68	Dust-tight and water-jet protectedIEC 60529

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

Housing Body
The housing itself: encloses and locates the internal parts and provides the mounting interface.
End caps Part
Seal the ends of the housing and provide mounting points

Material: steel
Rod gland Part
Seals around the actuator rod to prevent pressure leakage

Material: bronze or composite
Mounting flange Part
Provides attachment points for installing the actuator

Material: steel
Pressure ports Part
Connections for pneumatic supply lines

Material: brass or steel

Applied To / Applications

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

Pressure Spring/Pneumatic Actuator

View system integration details

Manufacturers of Pressure chamber/spring housing

Manufacturer profiles associated with Pressure chamber/spring housing.

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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

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Frequently Asked Questions

What materials are commonly used for the pressure chamber/spring housing?

Common materials include stainless steel, aluminum alloy, and carbon steel. The choice depends on factors such as corrosion resistance, weight, and strength requirements. Verify the specific material grade with the manufacturer.

What is the operating pressure range for this component?

The reference operating pressure range is 1.0–1.6 MPa. Always confirm the exact range for your specific model and application.

What IP rating does the housing typically have?

The housing is typically rated IP65 to IP68, indicating dust-tight and water-jet protection. The actual rating depends on the design and seals used; verify with the manufacturer.

How should I verify the suitability of this housing for my actuator?

Check the operating pressure, temperature, spring rate, stroke length, and material grade against your actuator's requirements. Confirm all parameters and standards with the manufacturer or supplier before installation.

Data Basis

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

Preliminary Technical Classification

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pressure:	Up to 10 bar (150 psi)
other spec:	Non-corrosive environments, clean dry air or inert gases
temperature:	-40°C to 120°C

Pressure chamber/spring housing

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards