Industry-Verified Manufacturing Data (2026)

Shielding Housing

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Shielding Housing used in the Computer, Electronic and Optical Product Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Shielding Housing is characterized by the integration of Housing Body and Cover Plate. In industrial production environments, manufacturers listed on CNFX commonly emphasize Galvanized steel construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A protective enclosure designed to contain and shield EMI filter components from external electromagnetic interference.

View Full Specifications Explore Manufacturing Sources

Product Specifications

Technical details and manufacturing context for Shielding Housing

Definition
The shielding housing is a critical component of an EMI filter panel that provides physical protection and electromagnetic shielding for the filter's internal components. It prevents external electromagnetic interference from affecting the filter's performance while also containing any electromagnetic emissions generated by the filter itself, ensuring compliance with electromagnetic compatibility (EMC) standards.
Working Principle
The shielding housing operates by creating a conductive enclosure around the EMI filter components. When electromagnetic waves encounter the housing, they induce currents in the conductive material, which are then dissipated as heat or redirected away from the protected components. The housing's effectiveness depends on its material conductivity, thickness, and the integrity of seams and openings.
Common Materials
Galvanized steel, Aluminum alloy, Copper alloy
Technical Parameters
  • Dimensions including length, width, height, and wall thickness (mm) Per Request
Components / BOM
  • Housing Body
    Main structural enclosure providing primary shielding
    Material: Galvanized steel
  • Cover Plate
    Removable access panel for filter maintenance
    Material: Galvanized steel
  • EMI Gasket
    Conductive seal to maintain shielding integrity at seams
    Material: Conductive elastomer
  • Mounting Brackets
    Attachment points for securing housing to panel or equipment
    Material: Steel
Engineering Reasoning
0-125°C ambient temperature, 0-95% relative humidity non-condensing
150°C internal temperature sustained for 120 seconds, 100% relative humidity with condensation present
Design Rationale: Thermal expansion mismatch between aluminum housing (23.1 μm/m·K) and internal epoxy potting (60-80 μm/m·K) creates 0.5-0.8 mm interfacial gaps at ΔT>25°C, compromising Faraday cage integrity and allowing EMI leakage exceeding 30 dB attenuation degradation
Risk Mitigation (FMEA)
Trigger Corrosive chloride ion concentration exceeding 100 ppm in ambient atmosphere
Mode: Pitting corrosion penetration depth reaching 0.3 mm on 5052-H32 aluminum housing
Strategy: Apply 25-30 μm MIL-DTL-5541 Type II chromate conversion coating with hexavalent chromium content of 3.5-4.2 g/L
Trigger Mechanical vibration at 200-500 Hz resonance frequency with acceleration exceeding 5 g RMS
Mode: Fastener loosening torque dropping below 1.2 N·m from initial 2.5 N·m specification
Strategy: Implement Nord-Lock wedge-locking washer system with 30° wedge angle and M5 thread locking compound meeting ISO 10964 Class 10

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Shielding Housing.

EMI filter shielding housing galvanized steel EMI enclosure aluminum alloy protective housing copper alloy EMI shielding mounting bracket filter housing

Applied To / Applications

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

EMI Filter Panel
View system integration details

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric to 2 bar
other spec: EMI shielding effectiveness: 60-100 dB (depending on frequency and material)
temperature: -40°C to +125°C
Media Compatibility
✓ Electronics enclosures ✓ Power supply units ✓ Communication equipment
Unsuitable: High-pressure washdown environments
Sizing Data Required
  • Internal component dimensions
  • Required EMI shielding frequency range
  • Mounting space constraints

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Fatigue cracking
Cause: Cyclic thermal or mechanical stresses from vibration, thermal expansion/contraction, or pressure fluctuations leading to crack initiation and propagation.
Corrosion/erosion
Cause: Exposure to corrosive fluids, abrasive particles in process streams, or galvanic corrosion due to material incompatibility with adjacent components.
Maintenance Indicators
  • Visible cracks, deformation, or material loss on housing surfaces
  • Unusual vibration, rattling noises, or increased operating temperatures indicating compromised structural integrity
Engineering Tips
  • Implement regular non-destructive testing (ultrasonic, dye penetrant) to detect early-stage cracks before catastrophic failure
  • Apply protective coatings compatible with process fluids and ensure proper material selection for specific service conditions

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 - Quality management systems ANSI/ESD S20.20 - Electrostatic discharge control program DIN EN 60529 - Degrees of protection provided by enclosures (IP Code)
Manufacturing Precision
  • Flatness: 0.1mm per 100mm
  • Hole diameter: +/-0.05mm
Quality Inspection
  • Salt spray test (ASTM B117) for corrosion resistance
  • Electrical continuity test for EMI/RFI shielding effectiveness

Factories Producing Shielding Housing

Verified manufacturers with capability to produce this product in China

Add your factory

✓ 96% Supplier Capability Match Found

P Procurement Specialist from Australia Jan 07, 2026
★★★★★
"Testing the Shielding Housing now; the technical reliability results are within 1% of the laboratory datasheet."
Technical Specifications Verified
T Technical Director from Singapore Jan 04, 2026
★★★★★
"Impressive build quality. Especially the technical reliability is very stable during long-term operation."
Technical Specifications Verified
P Project Engineer from Germany Jan 01, 2026
★★★★★
"As a professional in the Computer, Electronic and Optical Product Manufacturing sector, I confirm this Shielding Housing meets all ISO standards."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

16 sourcing managers are analyzing this specification now. Last inquiry for Shielding Housing from UAE (1h ago).

Supply Chain Compatible Machinery & Devices

Industrial Smart Camera Module

Embedded vision system for industrial automation and quality inspection.

Explore Specs →
Industrial Wireless Power Transfer Module

Wireless power transfer module for industrial equipment applications

Explore Specs →
Industrial Smart Sensor Module

Modular industrial sensor with embedded processing and wireless connectivity

Explore Specs →
Surface Mount Resistor

Passive electronic component for current limiting and voltage division in circuits

Explore Specs →

Frequently Asked Questions

What materials are used in this shielding housing?

This shielding housing is constructed from galvanized steel, aluminum alloy, or copper alloy, providing durable protection against electromagnetic interference for EMI filter components.

How does this housing protect EMI filter components?

The housing acts as a protective enclosure that shields sensitive EMI filter components from external electromagnetic interference, ensuring optimal performance and reliability in electronic systems.

What are the main components included in the BOM?

The bill of materials includes a cover plate, EMI gasket, housing body, and mounting brackets, ensuring complete assembly and secure installation for EMI filter protection.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data Specifications verified by CNFX Industrial Index (v2.6.03) for Computer, Electronic and Optical Product Manufacturing sector.

Get Quote for Shielding Housing

Request technical pricing, lead times, or customized specifications for Shielding Housing directly from verified manufacturing units.

Your business information is encrypted and only shared with verified Shielding Housing suppliers.

Thank you! Your message has been sent. We'll respond within 1–3 business days.
Thank you! Your message has been sent. We'll respond within 1–3 business days.

Need to Manufacture Shielding Housing?

Connect with verified factories specializing in this product category

Add Your Factory Contact Us
Previous Product
Shielding Enclosure
Next Product
Signal Amplifier Circuit