Housings & Enclosures

Precision CNC Machined Housings & Protective Enclosures

Complex CNC machined housings, valve bodies, gearbox cases, and protective enclosures manufactured to AS9100D standards. Advanced multi-axis machining for intricate internal features, precision sealing surfaces, and tight tolerances for critical aerospace and industrial applications.

±0.01mm
Sealing Surfaces
5-Axis
CNC Machining
Complex
Internal Features
AS9100D
Quality Assured

Complex Housings & Enclosure Solutions

Our precision CNC machined housings and enclosures provide critical protection and functionality for high-performance systems across aerospace, defence, and industrial sectors. From hydraulic valve bodies to gearbox cases and electronics enclosures, we deliver components with complex internal geometries and precision sealing surfaces.

Utilizing advanced 3-axis, 4-axis, and 5-axis CNC machining centers, we create housings with intricate internal passages, precision bores, threaded ports, and O-ring grooves. Every component undergoes rigorous inspection to ensure dimensional accuracy, surface finish quality, and complete functionality.

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Key Applications

Hydraulic Systems

Valve bodies, manifolds, pump housings, actuator cases

Gearboxes & Transmissions

Gear cases, transmission housings, bearing housings

Electronics Enclosures

Avionics boxes, instrument housings, control units

Protective Enclosures

Environmental protection, EMI shielding, hazardous area enclosures

Types of Housings & Enclosures We Manufacture

Comprehensive solutions for protection, containment, and system integration

Valve Bodies

Precision hydraulic and pneumatic valve housings with complex internal porting.

  • Internal flow passages
  • Threaded ports and connections
  • Precision sealing surfaces
  • High-pressure rated designs

Gearbox Cases

Transmission and gearbox housings with precision bearing bores and mounting interfaces.

  • Precision bearing housings
  • Oil reservoir design
  • Split-case configurations
  • Integrated mounting features

Electronics Enclosures

Protective housings for avionics, instruments, and electronic control systems.

  • EMI/RFI shielding provisions
  • Connector cutouts and bulkheads
  • Heat dissipation features
  • IP rated sealing

Pump Housings

Hydraulic, pneumatic, and fluid pump housings with complex internal geometry.

  • Impeller chambers
  • Inlet/outlet porting
  • Shaft seal provisions
  • Pressure containment design

Motor Housings

Electric motor and servo motor housings with precision bearing fits.

  • Precision bearing bores
  • Cooling fin designs
  • Cable entry provisions
  • Mounting flange integration

Actuator Housings

Pneumatic, hydraulic, and electric actuator bodies and cylinders.

  • Cylinder bore precision
  • Rod seal grooves
  • Porting and connections
  • End cap interfaces

Manifolds

Hydraulic and pneumatic manifolds with intersecting internal passages.

  • Cross-drilled passages
  • Multiple port configurations
  • Valve mounting surfaces
  • Integrated filtration cavities

Protective Covers

Environmental and mechanical protection covers and enclosures.

  • Weatherproof sealing
  • Ventilation features
  • Access panel provisions
  • Mounting hardware integration

Instrument Cases

Precision housings for gauges, meters, sensors, and measurement devices.

  • Optical window integration
  • Sensor mounting provisions
  • Environmental sealing
  • Calibration access features

Complex Internal Features & Capabilities

Advanced multi-axis machining for intricate geometries

Internal Passages

  • • Cross-drilled fluid channels
  • • Intersecting bore patterns
  • • Complex flow geometries
  • • Pressure equalization ports

Precision Bores

  • • Bearing fit tolerances (H6/H7)
  • • Honed cylinder bores
  • • Concentric multi-diameter bores
  • • Deep hole drilling

Sealing Surfaces

  • • O-ring groove precision
  • • Gasket seating surfaces
  • • Face seal flatness control
  • • Custom seal profiles

Threaded Features

  • • NPT/BSP port threads
  • • Metric and imperial threads
  • • Helicoil insert provisions
  • • Thread depth control

Pockets & Cavities

  • • Component mounting pockets
  • • Lightweighting cavities
  • • Wire routing channels
  • • Multi-level step features

Multi-Sided Features

  • • 5-axis compound angles
  • • Non-orthogonal surfaces
  • • Undercut geometries
  • • Complex 3D contours

Port Machining

  • • SAE flange ports
  • • Pipe thread connections
  • • Quick-disconnect fittings
  • • Custom port configurations

Tight Tolerances

  • • Position tolerance ±0.01mm
  • • Perpendicularity control
  • • Concentricity requirements
  • • True position tolerancing

Materials for Housings & Enclosures

Engineered materials for strength, durability, and environmental resistance

Aluminium Alloys

  • 6061-T6: General purpose, good strength-to-weight
  • 7075-T6: High strength aerospace grade
  • 2024-T3/T4: Excellent machinability
  • 6082-T6: European standard, corrosion resistant
  • 5083-H116: Marine grade applications

Benefits: Lightweight, excellent thermal conductivity, easy anodizing

Stainless Steel

  • 304/304L: General corrosion resistance
  • 316/316L: Superior chemical resistance
  • 17-4 PH: High strength, heat treatable
  • 15-5 PH: Excellent toughness
  • 410/416: Magnetic, good machinability

Benefits: Corrosion resistance, high temperature capability, cleanable

Titanium Alloys

  • Grade 5 (Ti-6Al-4V): Aerospace standard
  • Grade 2: Commercially pure titanium
  • Grade 23: Medical/aerospace applications
  • Grade 9 (Ti-3Al-2.5V): Tube applications
  • Beta-C: High strength, heat treatable

Benefits: Highest strength-to-weight, biocompatible, corrosion resistant

Specialty Materials

  • Inconel 625/718: High temperature strength
  • Hastelloy C-276: Extreme chemical resistance
  • Monel 400/K-500: Marine environments
  • Duplex Stainless: High strength + corrosion
  • Bronze/Brass: Non-sparking, decorative

Benefits: Extreme environments, chemical resistance, high temperature

Technical Specifications & Capabilities

Advanced precision for complex housing manufacturing

Machining Specifications

CNC Capabilities 3-Axis to 5-Axis
Standard Tolerances ±0.05mm
Tight Tolerances ±0.01mm
Bore Tolerances H6, H7 fits
Surface Finish Ra 0.4µm to 12.5µm
Flatness Control 0.01mm per 100mm
O-Ring Groove Accuracy ±0.02mm

Size & Feature Capabilities

Maximum Envelope 1500 × 800 × 600mm
Minimum Wall Thickness 1.5mm (AL), 1.0mm (SS)
Hole Diameter Range M2 to 200mm
Deep Hole Capability Up to 20× diameter
Thread Size Range M2 to M64
Minimum Radius R0.3mm (tools permitting)
Weight Capacity Up to 500kg

Honing & Boring

Precision cylinder bore finishing for tight tolerances and surface finish requirements.

  • • H6/H7 bore tolerances
  • • Ra 0.4µm surface finish
  • • Straightness control

EDM Machining

Wire and plunge EDM for complex internal features and tight corners.

  • • Sharp internal corners
  • • Hardened material machining
  • • Complex 3D cavities

Heat Treatment

Stress relief, hardening, and tempering for enhanced material properties.

  • • Stress relief annealing
  • • Solution heat treatment
  • • Precipitation hardening

Surface Finishing & Protection

Comprehensive finishing for corrosion resistance and aesthetic requirements

Anodizing

Type II & III hard anodizing, MIL-A-8625 compliant, color options

Powder Coating

Durable epoxy/polyester coatings, wide color selection

Electroplating

Zinc, nickel, chrome, cadmium plating to aerospace specs

Passivation

Stainless steel passivation per ASTM A967, citric or nitric

Polishing

Mirror, satin, brushed finishes for aesthetic and cleanability

Alodine/Chromate

Chemical conversion coating, paint primer, corrosion inhibitor

Electroless Nickel

Uniform coating thickness, excellent corrosion protection

Media Blasting

Glass bead, aluminum oxide, ceramic media for surface prep

Quality Assurance & Testing

Comprehensive inspection for critical aerospace and defence applications

CMM Inspection

3D coordinate measurement for complex geometries and tight tolerances.

  • GD&T verification
  • True position measurement
  • Internal feature inspection
  • First article reports (FAI/AS9102)

Pressure Testing

Hydrostatic and pneumatic testing for valve bodies and pressure vessels.

  • Leak detection
  • Burst pressure testing
  • Proof pressure verification
  • Test documentation

NDT Services

Non-destructive testing for critical aerospace components.

  • Liquid penetrant inspection
  • Magnetic particle inspection
  • Ultrasonic testing
  • X-ray inspection

Material Testing

Complete material verification and traceability.

  • XRF alloy verification
  • Hardness testing (Rockwell, Brinell)
  • Material test reports (MTR)
  • Heat treatment verification

Surface Quality

Precision measurement of surface finish and flatness.

  • Surface roughness (Ra, Rz)
  • Flatness measurement
  • O-ring groove inspection
  • Visual inspection to AQL standards

Documentation

Complete quality documentation package.

  • AS9102 First Article Inspection
  • Certificate of Conformance
  • Material certifications
  • Process traveler records

AS9100D Certified Quality System

Our AS9100D quality management system ensures every housing meets aerospace and defence standards with complete traceability and rigorous inspection protocols.

AS9100D Certified
ISO 9001:2015
ITAR Registered

Design Guidelines for Housings & Enclosures

Best practices for manufacturability and performance

Design Best Practices

  • Wall thickness: Maintain uniform wall thickness where possible (minimum 2mm for aluminum, 1.5mm for steel) to prevent warping and facilitate machining
  • Internal radii: Specify generous radii on internal corners (minimum R1.0mm) to reduce stress concentrations and allow standard tooling
  • O-ring grooves: Follow AS568 or ISO 3601 standards for groove dimensions and tolerances
  • Porting: Use standard SAE, NPT, or BSP thread specifications for fluid ports
  • Bolt patterns: Design symmetrical bolt patterns with adequate edge distance (3× bolt diameter minimum)
  • Draft angles: Add 1-3° draft on deep pockets and cores where possible to facilitate machining

Critical Considerations

  • Sealing surfaces: Specify flatness tolerances on sealing faces (typically 0.01-0.02mm per 100mm)
  • Bore alignment: Maintain coaxiality tolerances for bearing bores (typically 0.02-0.05mm)
  • Material selection: Consider thermal expansion, chemical compatibility, and pressure ratings
  • Tool access: Ensure adequate clearance for machining tools to reach all features
  • Assembly considerations: Design for ease of assembly with proper alignment features
  • Pressure ratings: Consult ASME or relevant codes for pressure vessel wall thickness calculations

Engineering Support Available

Our experienced engineers provide comprehensive Design for Manufacturing (DFM) review services. We can optimize your housing designs for:

Manufacturing cost reduction
Material utilization efficiency
Tolerance optimization
Sealing performance
Assembly simplification
Inspection accessibility

Industries We Serve

Precision housings for critical applications across diverse sectors

Aerospace

Avionics housings, actuator bodies, control system enclosures

Defence

Weapon system housings, vehicle components, communications enclosures

Oil & Gas

Valve bodies, pump housings, subsea equipment enclosures

Industrial

Gearbox cases, motor housings, machinery enclosures

Marine

Navigation equipment, propulsion system housings, deck equipment

Medical

Diagnostic equipment housings, surgical device enclosures

Energy

Generator housings, transformer enclosures, control system boxes

Hydraulics

Manifolds, valve bodies, accumulator housings, cylinder components

Frequently Asked Questions

Common questions about housing and enclosure manufacturing

What is the typical lead time for custom housings?

Lead times depend on complexity and quantity. Simple housings with standard features can be completed in 2-3 weeks. Complex multi-axis housings with extensive internal features typically require 4-6 weeks. Production volumes are quoted based on quantity and scheduling requirements.

Can you manufacture housings with internal fluid passages?

Yes, we specialize in complex internal geometries including cross-drilled passages, intersecting bores, and intricate flow channels. Our multi-axis machining capabilities and gundrilling equipment allow us to create sophisticated internal features with precise control over passage dimensions and positioning.

What tolerances can you hold on O-ring grooves and sealing surfaces?

We routinely hold ±0.02mm tolerances on O-ring groove dimensions and can achieve flatness of 0.01mm per 100mm on sealing surfaces. For critical applications, we can meet even tighter tolerances with appropriate fixturing and inspection protocols.

Do you provide pressure testing for valve bodies and pressure vessels?

Yes, we offer comprehensive hydrostatic and pneumatic pressure testing services. We can perform proof pressure tests, leak detection, and burst pressure testing with full documentation. Testing is conducted per customer specifications or relevant ASME/API standards.

Can you machine housings from castings or forgings?

Absolutely. We frequently machine housings from cast or forged blanks, which can be more cost-effective for complex shapes or high-volume production. We can work with your existing casting/forging suppliers or recommend qualified vendors for blank production.

What documentation is provided with housings for aerospace applications?

For aerospace applications, we provide comprehensive documentation including AS9102 First Article Inspection Reports, material certifications (MTR), Certificate of Conformance (C of C), dimensional inspection reports, and any required NDT or pressure test documentation. All documentation is traceable to specific serial numbers or lot codes.

Can you handle assembly of housings with inserts, seals, and hardware?

Yes, we offer comprehensive assembly services including installation of threaded inserts (Helicoil, Time-Sert), O-rings, gaskets, bearings, and hardware. We can deliver complete assemblies ready for installation, tested and certified to your specifications.

What is the maximum size housing you can manufacture?

Our standard CNC machines accommodate housings up to 1500mm × 800mm × 600mm. For larger components, we can work with partner facilities or machine in sections for assembly. Weight capacity is up to 500kg on our standard equipment.

Ready to Discuss Your Housing Requirements?

Upload your housing drawings for a detailed quote. Our engineering team will review your design and provide recommendations for manufacturability, material selection, and cost optimization.