WORKSHOP & ENGINEERING

OVERVIEW

Hotham specialises in the design and manufacture of advanced electrical harnesses, supported by in-house mechanical and fabrication capability. Operating from Perth, we deliver reliable, installation-ready solutions for automotive, mining, and industrial applications.

ABOUT US

At Hotham, we specialise in the design and manufacture of advanced automotive and custom electrical harnessing solutions for heavy-duty, industrial, and emerging technologies. We combine technical precision with practical experience to deliver reliable, production-ready wiring systems tailored to each project.

Our expertise spans prototypes to full production builds, providing robust harnesses that meet industry standards and perform in harsh environments. With strong technical capability across automotive, mining, off-highway equipment, and machine electrification, Hotham supports OEM solutions and industry partners with dependable electrical systems and strong engineering documentation.

CORE SERVICES

Custom automotive harnessing
Design and production of bespoke harnesses for light, heavy, and specialist vehicles.
Industrial & off-highway harness solutions
Robust wiring systems for mining, construction, and commercial equipment.
3D harness design & connectorisation
Professional loom modelling, routing, and termination using Amphenol, Deutsch, Aptiv, TE, ITT and MIL-spec interfaces.
Prototype & production builds
One-off research and development harnesses through to scalable repeat-build manufacturing.
Documentation, testing & compliance
IPC/WHMA-A-620 aligned workmanship, test reports, schematics, IO lists, and complete engineering documentation packs.
Reverse engineering
Reverse engineering of existing and OEM harnesses.

ELECTRICAL

Harness braiding

Electrical systems and harnessing are Hotham’s core focus, with all work built around delivering reliable, well-engineered wiring solutions. We provide installation, integration, and diagnostic support to ensure every system operates safely and to specification.

Harness braiding from 6 mm up to 42 mm in diameter
Full range of connectors
Custom labelling, including QR labels
Reverse engineering and OEM rebuilds
Root cause analysis and product improvement services

MECHANICAL

Hotham provides complementary mechanical support services to ensure our harnessing solutions integrate seamlessly with the equipment they are installed on. This includes fabrication, fitment, and minor mechanical modifications required to achieve optimal routing and reliability.

Onsite CNC laser cutting
60 tonne press brake
Light to medium fabrication
Enclosure and panel fabrication
Custom bracketry

Mechanical & fabrication capability

DESIGN

Hotham delivers end-to-end harness design solutions, including specialised reverse engineering of OEM and legacy wiring systems.

When equipment is unsupported, discontinued, or urgently needed back in service, our team can rapidly capture the existing harness layout and convert it into modern, fully documented, and manufacturable designs.

This capability reduces downtime, improves reliability, and ensures our customers stay operational with high-quality, locally engineered harness replacements.