
Tooling & Fixture Design
When a cable assembly requires accuracy, consistency, and efficient production, the tooling behind the process matters just as much as the assembly itself. MJM Industries designs and builds custom tooling and production fixtures for cable and wire harness assemblies to improve manufacturability, streamline production, and maintain quality from run to run.
Tooling and fixture design do not happen in isolation. It is part of MJM’s larger engineering and tooling development process, which includes:
- First articles
- Prototypes
- Quality-related support
- Part development
Additionally, off-the-shelf tooling does not always support the complexity, tolerances, or workflow requirements of custom cable assembly production. In those cases, purpose-built tooling and fixture design can make a measurable difference in quality, repeatability, and efficiency.
As a U.S.-based contract manufacturer with in-house engineering and machining capabilities, MJM designs tooling and fixture solutions that align directly with the way assemblies are built on the production floor.

In-House Engineering and Tool Room Capabilities
MJM Industries combines in-house engineering with a fully equipped tool room to better support tooling and fixture design needs. This allows the team to move from concept to build with greater control over quality, fit, and responsiveness while reducing reliance on outside tooling vendors.
In-house capabilities also support related services such as:
- Fabrication
- Preventive maintenance
- Tool updates and support as needed
Keeping tooling design, fabrication, and support within the same tool room helps reduce delays, improve communication, and support quicker action when production needs to change.
