Custom EMI Shielded Cable Assembly Manufacturer

Yihetai is a professional custom EMI Shielded Cable Assembly manufacturer in China, providing reliable shielded cable and wire harness solutions for power, signal, data, sensor and control applications. As an experienced wire harness manufacturer, custom cable assembly producer and cable assembly supplier, we help OEM customers reduce electromagnetic interference, improve signal integrity and build stable electrical connections for demanding equipment.

Our EMI Shielded Cable Assembly products can be customized according to customer drawings, samples, BOM lists or application requirements. We can customize wire gauge, cable length, conductor type, shielding structure, connector type, terminal type, jacket material, grounding method, overmolding structure, color, labels and packaging. Available shielding options include aluminum foil shielding, tinned copper braid shielding, spiral shielding, drain wire, twisted pair structure and combined foil + braid shielding.

With more than 25 years of experience as a wiring harness factory and cable assembly manufacturer, Yihetai serves industrial automation, automotive electronics, medical devices, energy storage, photovoltaic equipment, communication systems, home appliances, robotics, LED lighting and consumer electronics. Whether you need an OEM wire harness, a shielded signal cable, a multi-core shielded harness or a complete custom wiring solution, our team can support your project from prototype development to mass production.

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What Is an EMI Shielded Cable Assembly?

EMI shielded cable assembly is a custom cable assembly incorporating foil, braid, or combo shields to block electromagnetic interference (EMI) and radio-frequency interference (RFI). It maintains signal integrity by reflecting/absorbing noise, with grounding via drain wires or 360° terminations. Superior to unshielded cables, these assemblies ensure EMC compliance, reduce crosstalk, and boost reliability in noisy environments.

Compared with standard unshielded cables, a custom EMI shielded cable assembly can better match the equipment layout, connector interface, grounding strategy and electrical performance requirements. Shielding performance is affected by several design factors, including shield coverage, shielding material, cable construction, connector termination and grounding method. Industry guidance from connector and cable manufacturers commonly highlights foil, braid, spiral and combination shields as common options for EMI control.

For engineers, choosing the right shielded cable assembly is not only about adding a shield layer. It also involves conductor selection, twisted pair design, impedance control, drain wire connection, 360-degree shielding termination, flexibility, bending life, voltage rating, current rating and final assembly process. A well-designed EMI shielded cable assembly can help improve signal integrity, reduce equipment noise problems and improve long-term system reliability.

Common Custom EMI Shielded Cable Assembly Types We Manufacture

  • Single shield (foil or braided) cable assemblies
  • Single shield (foil or braided) cable assemblies
  • Shielded multi-core cable assembly
  • Shielded twisted pair cable assembly
  • Shielded sensor cable assembly
  • Shielded signal cable assembly
  • Shielded data cable assembly
  • Shielded power cable assembly
  • Shielded D-Sub cable assembly
  • Shielded M8 / M12 cable assembly

 

 

  • Shielded circular connector cable assembly
  • Shielded medical cable assembly
  • Shielded automotive wire harness
  • Shielded control panel cable harness
  • Shielded cable with drain wire and grounding terminal
  • High-speed Ethernet Cat6/6A S/FTP assemblies for industrial networks
  • Coax RG-style shielded cables for RF and video transmission
  • Braided copper shielded wire harness for automotive ECUs
  • Shielded cable assembly with Molex, JST, TE, Hirose, Amphenol or equivalent connectors

Key Features of our EMI Shielded Cable Assembly

  1. Foil/braid/combo shielding up to 100dB attenuation across frequencies
  2. Gauges 28-10AWG with PE, PVC, or LSZH insulation options
  3. Low transfer impedance for minimal noise coupling
  4. Precision twisting and pairing to cut crosstalk by 40dB+
  5. 360° shield termination via solder sleeves or crimps
  6. Stable signal transmission and improved protection against EMI, RFI and electrical noise
  7. 100% electrical testing before shipment to ensure stable continuity and batch consistency
  8.  Compatible with Molex,JST,Amphenol, TE, Lemo, D-Sub, M8, M12, circular connector sand customer-specified connector brands

Technical Specifications

ItemAvailable Options
Product NameEMI Shielded Cable Assembly
Cable TypeSingle-core, multi-core, twisted pair, shielded cable, flat cable, round cable
Wire Gauge30AWG–8AWG, or customized according to application
ConductorBare copper, tinned copper, silver-plated copper, stranded conductor
Shielding TypeAluminum foil, copper foil, tinned copper braid, spiral shield, foil + braid
Shield CoverageCustomized according to EMI requirement and cable structure
Drain WireOptional tinned copper drain wire
Connector TypeJST, Molex, TE, Hirose, Amphenol, D-sub, circular, USB, RJ45 or customized
Terminal TypeCrimp terminal, solder terminal, ring terminal, ferrule, Faston, pin or socket
Jacket MaterialPVC, TPE, TPU, PUR, silicone, PE, XLPE or customized material
Voltage Rating12V, 24V, 48V, 110V, 220V, 250V, 300V, 600V or customized
Current RatingCustomized according to wire gauge, terminal and connector design
Temperature Range-40°C to +105°C typical; higher range available by material selection
ProcessCutting, stripping, crimping, soldering, shield termination, assembly, overmolding
TestingContinuity, insulation resistance, high-voltage, pull force, visual inspection
Production ModePrototype, small batch, medium batch and mass production
Quality SystemISO 9001:2015, UL, IATF 16949 production management available

Applications

Our EMI Shielded Cable Assembly solutions are widely used in applications where signal stability, electrical noise control and reliable grounding are important.

  • Industrial automation equipment
  • Servo systems and motor control units
  • PLC systems and control panels
  • Sensors and measuring instruments
  • Robotics and intelligent equipment
  • Machine vision systems
  • Variable frequency drives and inverter systems
  • Industrial power supplies
  • Factory communication devices
  • Test and measurement equipment
  • CNC machines and production equipment
  • Control cabinets with high electrical noise
  • Consumer electronics with sensitive signals
  • Home appliances with control boards
  • Audio and video equipment
  • Smart home control systems
  • LED display and lighting control systems
  • Security cameras and monitoring systems
  • Communication terminals
  • Data transmission devices
  • Office automation equipment
  • Commercial display equipment
  • Medical diagnostic equipment
  • Patient monitoring devices
  • Automotive electronic control units
  • New energy vehicle auxiliary systems
  • Energy storage and battery management systems
  • Photovoltaic inverter and monitoring equipment
  • Aerospace and defense-related electronic equipment
  • Marine electronic systems
  • Laboratory instruments
  • High-reliability OEM electronic equipment

If your cable is installed near motors, relays, transformers, inverters, wireless modules or high-speed signal circuits, a custom EMI shielded cable assembly can help improve equipment reliability and reduce interference-related failures.

Customization Options

At Yihetai, all EMI Shielded Cable Assembly products can be customized according to customer requirements.

Custom ItemAvailable OptionsNotes
Wire TypeSingle wire, multi-core cable, twisted pair, coaxial, flat or round cableSelected according to power, signal or data function
ConductorBare copper, tinned copper, silver-plated copperCustomized for conductivity, flexibility and corrosion resistance
Wire Gauge30AWG–8AWG or metric sizesBased on current, voltage and space requirements
LengthShort internal harnesses or long external equipment cablesLength tolerance can be controlled by requirement
ColorBlack, white, gray, red, blue, yellow, green or customizedUseful for assembly identification
ConnectorJST, Molex, TE, Hirose, Amphenol, D-sub, RJ45, circular or custom connectorOriginal or equivalent connector matching available
TerminalPin, socket, ring, spade, ferrule, blade, Faston or custom terminalCrimping height and pull force controlled
ShieldingFoil, braid, spiral, drain wire, foil + braidDesigned according to EMI environment and flexibility needs
GroundingOne-end grounding, two-end grounding, drain wire or shield shell connectionBased on customer electrical design
Jacket MaterialPVC, TPE, TPU, PUR, silicone, PE, XLPESelected for temperature, flexibility and working environment
ProcessFoil wrap, braiding, overmoldProcess controlled by drawings and work instructions
TestingContinuity, insulation, high voltage, pull test, visual inspection100% testing available before shipment
Labeling & PackagingHeat shrink label, printed label, barcode, custom bag or cartonSupports traceability and easy installation


We can manufacture based on customer drawings, samples, BOM lists or application requirements.

Send us your drawing, sample or specification for a fast quotation

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Manufacturing Capability

Yihetai has in-house manufacturing capability for wire processing, cable cutting, terminal crimping, soldering, shield preparation, assembly, overmolding, labeling, electrical testing and final packaging. Our company profile shows dedicated wire-processing workshops, wire harness assembly workshops, production equipment, terminal crimping areas, welding zones, testing areas and testing equipment.

For EMI shielded cable assemblies, our production team can handle different shield structures, including foil shield termination, braided shield processing, drain wire connection, heat shrink protection, connector assembly and overmolded strain relief. We support prototype development, small-batch production and mass production for OEM wire harness and custom cable assembly projects.

From material selection to final assembly and testing, all production processes are carried out under strict quality control to ensure consistent product performance and delivery reliability. Typical lead time for prototypes is 5-7 days, and mass production can usually be arranged within 3-4 weeks depending on material availability, tooling requirement and order quantity.

Quality Assurance & Control

Yihetai applies full-process quality control for every EMI shielded cable assembly project. From incoming material inspection to wire cutting, crimping, shield processing, connector assembly, electrical testing and final packaging, each step follows documented work instructions and inspection standards. Key parameters such as wire length, terminal position, crimp height, pull force, shielding continuity, grounding connection and appearance are checked to reduce production risk. Yihetai’s production processes comply with ISO 9001:2015 quality management requirements, and the company also has UL and IATF 16949 certification capability for wire harness and automotive-related manufacturing projects. These systems help customers obtain stable quality, batch consistency and reliable traceability for custom cable assembly programs.

Inspection items include:

  • Incoming material inspection
  • Wire gauge and cable specification check
  • Shielding material and drain wire inspection
  • Terminal crimp height inspection
  • Terminal crimp pull test
  • Soldering and shield termination inspection
  • Visual and continuity check
  • Shield continuity and grounding check
  • High-voltage test
  • Insulation resistance test
  • Dimensional and fixture inspection
  • Label and packaging inspection
  • Every harness is delivered with guaranteed electrical integrity and consistent quality across batches
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Why Choose Yihetai

Yihetai has 25+ years of experience serving customers in automotive, industrial, renewable energy, medical, communication, and consumer electronics markets

Yihetai supports wire selection, shielding design, connector matching, terminal selection, grounding structure, and prototype evaluation for custom cable assembly projects

Yihetai manufactures foil-shielded, braided-shielded, spiral-shielded, and foil-plus-braid shielded cable assemblies to meet different EMI protection requirements

We provides flexible EMI shielding solutions, including foil-shielded, braided-shielded, spiral-shielded, and foil-plus-braid shielded cable assemblies

Each custom EMI shielded cable assembly is 100% tested before shipment to ensure stable electrical connection performance and reliable quality traceability

As a professional wiring harness factory and cable assembly supplier, Yihetai helps customers reduce sourcing cost while maintaining quality and delivery reliability

Frequently Asked Questions

Yes. Yihetai can manufacture EMI Shielded Cable Assembly products according to your drawing, sample, BOM list or application requirements. Our engineering team can review your wire gauge, connector type, shielding method, grounding method, cable length and testing requirements, then provide a practical manufacturing solution and quotation for your project.

We can manufacture cable assemblies with aluminum foil shielding, copper foil shielding, tinned copper braided shielding, spiral shielding, drain wire and combined foil-plus-braid shielding. Foil shielding is often used for higher coverage, while braided shielding provides better mechanical durability. Combination shielding can be selected when the application needs broader EMI protection and stronger structure.

For a fast and accurate quotation, please provide the cable drawing, wire gauge, cable length, connector model, pin assignment, shielding type, grounding requirement, jacket material, rated voltage, rated current, operating temperature, quantity and testing standard. If you do not have a complete drawing, you can send a sample or application description.

Yes. Our engineering team can help evaluate your application environment and recommend a suitable shielding structure. For example, foil shielding may be used for compact signal cables, braided shielding may be better for flexible or mechanically demanding applications, and foil-plus-braid shielding may be suitable for equipment exposed to stronger EMI sources.

Yes. Yihetai supports prototypes, small-batch trial production and mass production. For new projects, we can first make samples for installation testing, electrical testing and structure confirmation. After customer approval, we can move to stable batch production with controlled process documents, inspection standards and traceability records..

Do you support prototypes and mass production?

Contact Yihetai today for fast support on prototype development, technical evaluation and quotation

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Custom Wire Harness & Cable Assembly Manufacturer

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