Cable & Wire Harnesses
- 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
| Certifications | IPC/WHMA-A-620, IPC J-STD-001, IPC-A-610, NASA-STD-8739.3 |
|---|---|
| Program Fit | Aerospace, Defense, Space, Industrial |
| Core Strengths | Automated Processing, RF/Coax, High-Reliability |
| Typical Deliverables | Harnesses, Cables, Interconnect Assemblies |
| Order Quantities | Low 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
Military aircraft and rotorcraft
Harnesses, interconnects, and integrated control wiring for legacy and current fixed-wing and rotary-wing platforms, built under IPC/WHMA-A-620 Class 2/3 with sealed backshells, potted connectors, and over-molded transitions for flight-critical and ground-based service.
Explore Aerospace & DefenseSatellite, space, and high-reliability programs
Microminature circular, Nano (M32139), MicroD (M83513), and small-gauge high-flex (smaller than 28 AWG) cable assemblies built in Class 100 and Class 1000 clean rooms, with NASA-STD-8739.3 certified soldering, de-golding procedures, FOE plans, and shelf-life-controlled material handling for space-flight programs.
Explore Space & LaunchCommercial and military avionics
Cable assemblies supporting cockpit, mission, communication, and navigation systems across fixed-wing and rotary-wing aircraft, with Cat 5/6 networking and high-speed data interconnects built to ANSI/TIA/EIA-568B.
Explore Aerospace & DefenseRadar, communications, and electronic warfare
Semi-rigid, flexible, low-loss, Silicon Dioxide (SiO2) high-temperature, and specialty (WL Gore, Heliax) coaxial assemblies for ground-based, airborne, and shipboard radar, satellite communications, datalink, and electronic-warfare platforms.
Explore Military ProgramsOil and gas, down-hole, and energy services
Sealed, submersible, and down-hole cable assemblies engineered for hydrostatic pressure, chemical exposure, and high-temperature service. High-voltage harnesses (greater than 1 kV) and bus-bar assemblies for energy, utilities, and power-generation applications.
Explore Oil & GasUnderwater and marine systems
Sealed and submersible harnesses with Low-Smoke Zero-Halogen (LSZH) jackets, fluoroelastomer and polyurethane molded transitions, and controlled-impedance lines supporting underwater vehicles, naval shipboard, and marine sensor platforms.
Explore Naval and MarineIndustrial, energy, and utilities
High-voltage (greater than 1 kV), bus-bar, control, instrumentation, and power harnesses for energy, utilities, and heavy industrial customers, supported by IATF 16949 and ISO 9001 quality systems.
Explore Energy & UtilitiesMedical and life sciences
Microminature and over-molded cable assemblies for diagnostic, monitoring, and therapeutic equipment, manufactured under an ISO 13485 quality framework with full material traceability and clean-room assembly when required.
Explore Medical & Life SciencesHigh-speed data networks and instrumentation
Quadrax, Twinax, Triax, and Cat 5/6 cable assemblies for Gigabit-class data interconnects in aerospace, mission-system, and industrial networking applications.
Explore CommunicationsRelevant Capabilities
Automated crimp termination
Auto-crimping cells with calibrated, controlled-cycle tooling produce repeatable terminations with verified pull strength and electrical performance. All crimping is performed in compliance with IPC/WHMA-A-620 Class 2/3, with 100% visual and sample pull-test verification on critical builds.
Solder termination
Hand-soldering and machine-soldering capabilities using Low Temperature Solder (SN63) and High Temperature Solder (SN96, application dependent) for terminations that require permanent metallurgical bonds. Workmanship is performed and certified to IPC J-STD-001 by ANSI J-STD-001 certified soldering technicians, with solder and assembly acceptance certified to IPC-A-610. NASA-STD-8739.3 certified soldered electrical connections support space and high-reliability programs.
Explore PCB AssemblyOver-molding (injection molding)
Custom over-molding creates a seamless transition between cable and connector, integrating strain relief, environmental sealing, and identification marking into a single shot. Polychloroprene and polyurethane molding processes are selected based on flex life, chemical resistance, dielectric requirements, and temperature range. In-house DFM/DFT engineering supports moldability, fit, and yield from prototypes through large production runs.
Circular MIL-spec connector population
Polytronix populates MIL-DTL-38999, MIL-DTL-26482, and MIL-DTL-5015 circular connectors on cable and wire harness assemblies build-to-print, pairing crimp or solder contacts with sealed backshells, environmental gaskets, and shield termination rings. Microminiature work covers MIL-DTL-32139 (M32139) Nano and MIL-DTL-83513 (M83513) MicroD connectors built from components, with laser-marked wire identification per MIL-STD-202.
Potting and backshell assembly
Backshells are populated and potted with epoxy compounds to seal terminations against moisture, vibration, and contamination. This is the preferred process for circular MIL-spec connectors used on flight-critical, ruggedized, and harsh-environment assemblies.
Explore RuggedizationHeat-shrink and environmental sealing
Application of dual-wall, adhesive-lined, and conductive heat-shrink to terminations, transitions, and breakout points. Delivers IP-rated sealing, EMI shielding continuity, and abrasion resistance for harnesses exposed to harsh environmental and operational conditions.
Explore RuggedizationCoaxial and RF assembly
Precision termination of RF and microwave coaxial cable supporting semi-rigid, flexible, low-loss, Silicon Dioxide (SiO2) high-temperature, microminature, Quadrax, Twinax, Triax, and specialty coaxial (WL Gore, Heliax) constructions. Automated coax stripping and automated coax cutting deliver consistent dielectric standoff and dimensional control. Center-contact soldering and controlled-cure shielding ensure compliant VSWR and insertion-loss performance for communications, radar, and electronic-warfare systems.
Shield termination methods
Solder shield, banding shield, and constant-force spring shield termination methods, selected based on shield continuity, mechanical robustness, and assembly process requirements. Shield resistance verified to less than 1.0 milliohm on critical builds.
Explore RuggedizationMixed-technology cable assemblies
Assemblies combining power contacts, RF contacts, signal contacts (low-voltage), high-voltage contacts (greater than 1 kV), bus bars, and controlled-impedance lines in a single harness. Supports integrated subsystems that consolidate power distribution, data, and RF interconnects.
Explore Electro-MechanicalStandards 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
AS9100D — PRI 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
