Melbourne · Precision Electrical Engineering

Wiring harnesses engineered for demanding applications

We design and fabricate custom wiring harnesses and electrical systems for EV builders, product developers, and specialist vehicle projects — the small and custom jobs volume manufacturers won't take on, built with the rigour of serious industrial engineering.

Mining EVs

HV harness design and fabrication for underground electric vehicles, for a leading mining equipment manufacturer.

Heavy Electric Trucks

HV harness design and build for heavy electric truck platforms.

Vehicle Software Integration

Delivered alongside a specialist control systems engineering firm.

Why Harness Logic

Engineering rigour, applied to the jobs others won't take

Precision

Precision engineering

Every harness is designed, documented, and tested to a standard suited to demanding electrical and high-voltage applications — not just thrown together.

Flexibility

Flexibility for custom & small-batch work

We take on the prototype, one-off, and low-volume jobs that volume manufacturers won't — without cutting corners on quality.

Track record

Proven industrial & heavy-vehicle history

Real project experience across mining equipment, heavy electric vehicles, and specialist control systems — serious work for serious applications.

Who we work with

Built for the projects that need it most

EV Builders

Conversion projects and purpose-built EVs, from prototype harness to low-volume production.

Startups & Product Developers

Prototyping and low-volume runs for teams that need a partner who understands new-product uncertainty.

Specialist Vehicles

Industrial, heavy commercial, and fleet/mining equipment projects requiring proven electrical engineering.

Workshop

Equipped for HV/EV work, not just hobby wiring

From verification testing to repeatable crimping and PCB rework, our workshop is built around the equipment that demanding electrical work actually requires.

Quality test equipment

Ability to ensure quality — a key differentiator for EV/HV harness work.

PCB Rework Station

Reflow oven, rework, and inspection microscope for electronics assembly.

Hydraulic Crimping

electro-hydraulic terminal crimper for reliable terminations.

Rapid Prototyping

3D printing, laser cutting, and laser marking in-house.

See full capabilities & equipment list

Have a project in mind?

Tell us about your harness, wiring, or electrical engineering requirements — we'll get back to you with next steps.