Cable Assemblies and Wire Harnesses

As a U.S.-based wire harness and cable assembly manufacturer, MJM Industries supports OEMs across a wide range of industries with reliable, high-quality solutions. Custom wire harnesses and cable assemblies play a critical role in electrical system performance. Our products are engineered for durability and seamless integration.

Wire Harness vs Cable Assembly 

Wire harnesses and cable assemblies serve similar functions, but their design and construction impact how they perform in different applications. 

Wire harnesses consist of bundled discrete wires that are terminated with connectors and/or terminals. The wires are routed together and bound with tape, lacing, conduit, or sleeving. Because the wires remain separate within the bundle, harnesses can branch to multiple connection points and are commonly used to distribute power or signals throughout a system. This design also creates a compact assembly that is easier to route through equipment. 

Cable assemblies consist of multi-conductor cables enclosed in a single outer jacket. This construction provides enhanced protection from environmental conditions such as moisture, abrasion, and chemicals, while creating a more robust and streamlined, point-to-point solution for transmitting power or signals between components.

Custom Wire Harness Assemblies for Reliable System Integration

We design and manufacture custom wire harnesses tailored to the exact routing and connection requirements of each application. Wire harnesses are commonly used in equipment requiring multiple electrical connections, including industrial machinery, control panels, transportation equipment, and automation systems. 

Typical wire harness features include: 

  • Branching configurations for multiple connection points 
  • Crimped terminals, solder joints, splices, and interconnect types, such as rings,
    forks, sockets, and pins
     
  • Protective coverings such as braid, tape, loom, or spiral wrap 
  • Labels and routing markers to identify conductors and guide installation 

Custom Cable Assemblies for Rugged Equipment Applications

MJM Industries produces custom cable assemblies engineered for reliable performance in applications where durability, environmental protection, and simplified routing are critical. Cable assemblies typically consist of multi-conductor cables with connectorized ends, protected by an outer jacket. These assemblies often incorporate strain relief to protect connection points. In some applications, connectors are overmolded to improve sealing and durability. 

Potential features:  

  • Overmolded connectors providing strain relief and ingress protection 
  • Armored conduit providing additional harsh environment protection 
  • Various composite cables such as Ethernet, coaxial, ribbon, flat flex, multi-
    conductor
     
  • Shielding and EMI/RFI protection to maintain signal integrity  
  • High-flex, continuous-motion-rated designs for dynamic applications 

Custom Engineering and Manufacturing 

Our Northeast Ohio facility is designed to support both low- and high-volume production. It is fully equipped with automated and semi-automated equipment capable of processing wire and cable from 4/0 to 28-gauge. 

Key capabilities in our wire harness and cable assembly manufacturing process include: 

  • Cutting and preparation: Automated cut-and-strip systems, de-reeling stations, and coiling equipment handle a wide range of wire sizes and reel weights 
  • Stripping: Mechanical, thermal, and laser systems are used depending on wire type, volume, and application 
  • Terminating: Connectors and terminals are attached using crimping, soldering, and ultrasonic welding for durable electrical connections 


With in-house engineering and manufacturing capabilities, we support both standard builds and highly customized solutions. We partner early in the design process to develop assemblies that integrate efficiently while meeting performance, durability, and production goals.
 

Quality and Testing

Every assembly is inspected and tested to verify compliance with customer specifications.
Our 
quality-focused processes ensure each harness or cable assembly performs as expected in the field.
 

Partner With MJM Industries

If you need a reliable wire harness manufacturer or cable assembly manufacturer, talk with MJM Industries about your requirements or request a quote for your next custom assembly project.

Get In Touch