INDUSTRY COMPONENT

Cylinder housing

Cylinder housing is the structural enclosure for hydraulic or pneumatic actuators, providing pressure containment and mounting interface.

Component Specifications

Definition
A cylinder housing is the primary structural component of linear actuators (hydraulic/pneumatic pistons, wedges) that forms the pressure vessel containing the working fluid. It provides precise bore geometry for piston movement, incorporates porting for fluid entry/exit, includes mounting features for installation, and maintains pressure integrity under operational loads. The housing serves as the foundation for the entire actuator assembly, ensuring alignment of internal components and protection from environmental factors.
Working Principle
The cylinder housing operates by containing pressurized fluid (hydraulic oil or compressed air) within its bore, creating a sealed chamber that converts fluid pressure into linear mechanical force through piston movement. It maintains structural integrity under cyclic pressure loads while providing precise guidance for the piston rod.
Materials
Carbon steel (ASTM A36, AISI 1045), stainless steel (304, 316), aluminum alloys (6061-T6), ductile iron (65-45-12). Surface treatments: Hard chrome plating, nitriding, powder coating.
Technical Parameters
  • Port Size 1/4" to 2" NPT/SAE/BSP
  • Bore Diameter 25-500 mm
  • Stroke Length Customizable per application
  • Mounting Style Foot, flange, trunnion, clevis
  • Surface Finish Ra 0.4-0.8 μm (bore)
  • Pressure Rating Up to 350 bar (hydraulic), 16 bar (pneumatic)
  • Straightness Tolerance 0.01 mm per 100 mm
Standards
ISO 6020-2, ISO 15552, DIN 24554, NFPA T3.6.7

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Cylinder housing.

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Pressure vessel failure
  • Bore scoring leading to seal damage
  • Corrosion in harsh environments
  • Fatigue cracking at mounting points
  • Thermal expansion mismatch
FMEA Triads
Trigger: Material defect or improper heat treatment
Failure: Catastrophic rupture under pressure
Mitigation: Material certification, hydrostatic testing at 1.5x operating pressure, regular NDT inspection
Trigger: Contaminated fluid or inadequate filtration
Failure: Bore scoring and seal degradation
Mitigation: Install proper filtration (10 μm for hydraulic, 40 μm for pneumatic), regular fluid analysis
Trigger: Misalignment during installation
Failure: Premature wear and binding
Mitigation: Use precision alignment tools, follow mounting torque specifications, install flexible couplings

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Bore diameter: H8/H9, Straightness: 0.01 mm/100 mm, Surface roughness: Ra 0.4-0.8 μm
Test Method
Hydrostatic pressure test (1.5x max operating pressure), bore geometry verification with air gauging, surface finish measurement with profilometer, material certification per ASTM/EN standards

Buyer Feedback

★★★★☆ 4.9 / 5.0 (24 reviews)

"Reliable performance in harsh Machinery and Equipment Manufacturing environments. No issues with the Cylinder housing so far."

"Testing the Cylinder housing now; the technical reliability results are within 1% of the laboratory datasheet."

"Impressive build quality. Especially the technical reliability is very stable during long-term operation."

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Frequently Asked Questions

What is the difference between hydraulic and pneumatic cylinder housings?

Hydraulic housings are designed for higher pressure (typically 70-350 bar) with thicker walls and premium materials, while pneumatic housings operate at lower pressures (typically 6-16 bar) with lighter construction and often aluminum materials.

How do I select the right cylinder housing material?

Consider operating pressure (steel for high pressure, aluminum for lightweight), corrosion environment (stainless for corrosive conditions), temperature range, and compatibility with hydraulic fluids or lubricants.

What maintenance does a cylinder housing require?

Regular inspection for external damage, checking for bore scoring or corrosion, ensuring mounting bolts remain tight, and verifying port connections remain leak-free. Periodic replacement of seals is needed but the housing itself typically lasts the equipment lifetime.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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