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Cable & Wire Harnesses

Use Cases
  • Avionics interconnects
  • Space-grade cable assemblies
  • Radar, RF, and coaxial assemblies
  • Sealed and submersible harnesses
  • Ground support and test equipment

Automated termination, IPC/WHMA-A-620 Class 2/3 workmanship, and 100% functional testing for high-reliability interconnects.

Polytronix makes custom cable and wire harness assemblies at any length with any size terminal - round, ribbon, Cat 5/6, coaxial, Quadrax, Twinax, and Triax - with automated termination, IPC/WHMA-A-620 Class 2/3 workmanship, and 100% functional testing for aerospace, defense, and space programs.

Overview

Polytronix fabricates custom cables and wire harnesses specially designed by our engineering team according to your needs. We manufacture at any length with any size terminal, supported by automated machinery configured for both small and large production runs, from high-mix work to large production runs. Automated wire stripping, automated wire cutting, automated coax stripping, automated coax cutting, and auto-crimping cells deliver repeatable, controlled-cycle terminations across short-run prototypes and large production runs.

Our shop supports military specification (MIL-spec) and commercial requirements with IPC/WHMA-A-620 certified workmanship at Class 2 and Class 3, complemented by hi-pot, continuity, and 100% functional testing. Our technicians hold IPC/WHMA-A-620 and 620S, IPC J-STD-001, and IPC-A-610 credentials, plus ANSI J-STD-001 certified soldering and NASA-STD-8739.3 soldered electrical connections certification for high-reliability and space-grade work. As a full-capability manufacturing partner to the Department of Defense (DoD) and commercial aerospace, we engineer and integrate cable assemblies for flight-critical, mission-critical, and ground-based applications.

Cable and wire types span round military and commercial cable, ribbon cable, Cat 5/6 networking cable, microminature circular and small-gauge high-flex assemblies (smaller than 28 AWG), Nano (M32139) and MicroD (M83513) connector assemblies built from components, microminature coaxial, Quadrax, Twinax, Triax, semi-rigid and flexible RF coaxial, low-loss coaxial, Silicon Dioxide (SiO2) high-temperature coaxial, and specialty coaxial including WL Gore and Heliax. Harness jackets include polyurethane, PVC, EPDM, fluoroelastomer, polyolefin, expando, and Low-Smoke Zero-Halogen (LSZH) materials, with polychloroprene and polyurethane molding processes available for over-molded transitions.

Termination methods include automated crimping, hand and machine soldering with Low Temperature Solder (SN63) and High Temperature Solder (SN96, application dependent), over-molding, potting and backshell assembly, and shield termination by solder, banding, or constant-force spring methods. Connector and component tinning, de-golding procedures, magnification workstations at 6x and greater, and segregated silver-plate-wire processing support high-reliability and space-grade workflows. Class 100 and Class 1000 clean-room facilities, Foreign Object Elimination (FOE) plans, shelf-life control on parts, ESD-capable workstations when required, and wire storage at less than 50% relative humidity protect assembly quality from receipt through ship.

At a Glance

Key specifications at a glance
CertificationsIPC/WHMA-A-620, IPC J-STD-001, IPC-A-610, NASA-STD-8739.3
Program FitAerospace, Defense, Space, Industrial
Core StrengthsAutomated Processing, RF/Coax, High-Reliability
Typical DeliverablesHarnesses, Cables, Interconnect Assemblies
Order QuantitiesLow MOQs to Large Production Runs

Cable and Harness Scope

Cable & Harness Assemblies

  • Round military and commercial cable assemblies
  • Ribbon cable assemblies
  • Wiring harnesses, high mix to large production runs
  • Cat 5/6 networking cables (ANSI/TIA/EIA568B)
  • Microminature circular and small-AWG / high-flex assemblies (smaller than 28 AWG)
  • Nano connector assemblies built from components (M32139)
  • MicroD connector assemblies built from components (M83513)

RF & Coaxial Assemblies

  • Microminature coaxial assemblies
  • Quadrax, Twinax, and Triax assemblies
  • Semi-rigid and flexible RF coaxial assemblies
  • Low-loss coaxial assemblies
  • Silicon Dioxide (SiO2) high-temperature coaxial
  • Specialty coaxial including WL Gore and Heliax

Power, High-Voltage & Mixed-Signal

  • High-voltage assemblies (greater than 1 kV)
  • Bus bars and power-contact assemblies
  • Mixed-technology assemblies combining power, RF, signal, and high-voltage contacts
  • Controlled-impedance assemblies

Sealed, Jacketed & Custom

  • Down-hole assemblies
  • Sealed and submersible assemblies
  • LSZH (Low-Smoke Zero-Halogen) jacketed harnesses
  • Polyurethane, PVC, EPDM, fluoroelastomer, polyolefin, and expando jacketed harnesses
  • Conduit assemblies
  • Build-to-print custom harnesses

Technologies & Product Families

RF & microwave coaxial constructions

  • Microminature coaxial assemblies
  • Quadrax, Twinax, and Triax assemblies
  • Semi-rigid and flexible RF coaxial assemblies
  • Low-loss coaxial assemblies
  • Silicon Dioxide (SiO2) high-temperature coaxial
  • Specialty coaxial including WL Gore and Heliax

Radar & electronic-warfare coaxial interconnect

  • Precision termination of RF and microwave coaxial cable
  • BNC, SMA, TNC, N-type, and MIL-spec coaxial series connectors
  • Center-contact soldering and controlled-cure shielding
  • Compliant VSWR and insertion-loss performance
  • Ground-based, airborne, and shipboard radar assemblies
  • Satellite communications, datalink, and electronic-warfare platforms

Relevant Applications

Relevant Capabilities

Standards and Compliance

Connector specifications populated build-to-print

  • MIL-DTL-38999 circular connectors, with sealed backshells and shield termination ringsReferenced
  • MIL-DTL-26482 circular connectorsReferenced
  • MIL-DTL-5015 circular connectorsReferenced
  • MIL-DTL-32139 (M32139) Nano connector assemblies built from componentsReferenced
  • MIL-DTL-83513 (M83513) MicroD connector assemblies built from componentsReferenced
  • MIL-STD-202 test methods for electronic and electrical component partsReferenced

IPC workmanship standards

  • IPC/WHMA-A-620 and 620S. Acceptability of Cable, Wire, and Harness Assemblies (Class 2/3)Conformance
  • IPC J-STD-001. Soldered Electrical and Electronic AssembliesConformance
  • IPC-A-610. Acceptability of Electronic AssembliesConformance

Technician training and high-reliability credentials

  • ANSI J-STD-001 certified soldering techniciansConformance
  • NASA-STD-8739.3 soldered electrical connections certification
  • AS9100D certified test capabilityRegistered
  • IPC-A-610 Certified IPC Specialist (CIS) and IPC/WHMA-A-620 Certified IPC Trainer (CIT) credentialsConformance
  • IPC J-STD-001 Space AddendumConformance

Test and quality systems

  • Cat 5/6 networking test (ANSI/TIA/EIA568B)Referenced
  • Statistical Process Control (SPC)
  • Continuous Improvement Plan
  • Foreign Object Elimination (FOE) Plan
  • Class 100 and Class 1000 clean-room production
  • ESD-controlled workstations (ANSI/ESD S20.20)Referenced

Third-party recordConformance claimedReferenced

AS9100DPRI Certification (Performance Review Institute). Certificates of record →

Frequently Asked Questions

Who makes custom cable and wire harness assemblies?
Polytronix fabricates custom cables and wire harnesses designed by its engineering team, manufactured at any length with any size terminal. Automated wire stripping, cutting, coax stripping and cutting, and auto-crimping cells deliver repeatable terminations across short-run prototypes and large production runs, with IPC/WHMA-A-620 Class 2 and Class 3 certified workmanship complemented by hi-pot, continuity, and 100% functional testing.
What cable and coaxial types does Polytronix supply?
Polytronix builds round military and commercial cable, ribbon cable, Cat 5/6, microminature circular, Nano (M32139) and MicroD (M83513) connector assemblies, microminature coaxial, Quadrax, Twinax, Triax, semi-rigid and flexible RF coaxial, low-loss coaxial, Silicon Dioxide (SiO2) high-temperature coaxial, and specialty coaxial including WL Gore and Heliax, for radar, satellite communications, and electronic-warfare platforms.
Does Polytronix make space-grade and high-reliability cable assemblies?
Polytronix supports space-grade and high-reliability cable assembly with NASA-STD-8739.3 certified soldered electrical connections, ANSI J-STD-001 certified soldering, de-golding procedures, and segregated silver-plate-wire processing. Class 100 and Class 1000 clean-room facilities, Foreign Object Elimination (FOE) plans, shelf-life control, and wire storage at less than 50% relative humidity protect assembly quality from receipt through ship.
What termination and shield methods does Polytronix use?
Polytronix termination methods include automated crimping, hand and machine soldering with Low Temperature Solder (SN63) and High Temperature Solder (SN96, application dependent), over-molding, potting and backshell assembly, and shield termination by solder, banding, or constant-force spring methods. Harness jackets include polyurethane, PVC, EPDM, fluoroelastomer, polyolefin, expando, and Low-Smoke Zero-Halogen (LSZH) materials.

Discuss Your Cable and Harness Requirements

Send your wire list or harness drawing. We confirm IPC/WHMA class, terminations, and test scope before the first build.

Quality & Compliance

Polytronix maintains active third-party registrations spanning aerospace, medical, automotive, and environmental quality systems, verified by accredited registrars.

View Certifications
  • Registered: AS9100DAerospace QMS
  • Registered: ISO 9001:2015Richardson, TX
  • Registered: ISO 13485:2016Medical devices
  • Registered: ISO 14001:2015Environmental
  • Registered: IATF 16949:2016Automotive
  • Registered: FAA Part 145Repair Station 8PTR524C
  • Compliant: EASA Part 145US–EU bilateral recognition
  • Registered: ITARDDTC registration