Power Tool Wire Harness

Send a wiring diagram, connector part numbers, wire gauge, harness length, battery voltage class, expected current, and any sample photos. A 2D drawing with cavity numbers is ideal, but a physical sample can also support reverse engineering. For compact cordless tools, include housing constraints around the trigger, battery rail, motor, and charger contacts because 5 mm of extra branch length can create pinching during clamshell assembly. Annual volume and pilot quantity help us choose the right tooling and test fixture approach.

A 200-piece pilot build fits OurPCB's no-MOQ model, especially when the program needs design validation before repeat production. Prototype and pilot lots can use the same cavity map, wire colors, labels, and continuity test plan planned for volume. If custom tooling or proprietary battery contacts are required, lead time depends on the connector source, but standard JST, Molex, TE, and terminal families can usually move faster. We can also separate pilot-pack labels from later production labels to avoid revision confusion.

Yes. We manufacture low-voltage DC harnesses for common cordless tool battery platforms, including 18V, 20V, 40V, and 60V class designs. Wire gauge, terminal style, and insulation are selected from the customer drawing and current requirement rather than from voltage alone. Battery leads, sense wires, NTC thermistor leads, trigger wiring, LED leads, and charger contacts can be combined into one tested harness set. High-current paths receive separate attention for crimp quality, pull force, and heat rise risk during first article review.

Strain relief and routing control prevent most trigger and battery wire failures in handheld tools. We use defined service loops, heat shrink, sleeve, grommets, tie points, and connector orientation control so wires do not pull tight when the tool housing closes. For high-vibration products, pull-force testing and 100% continuity testing can be combined with a first article fit check before releasing larger lots. A sample housing or CAD envelope helps catch pinch points before production and improves repeat installation quality.

Crimped terminals are usually preferred for repeat OEM production because crimp height, pull force, and cavity insertion can be measured consistently. Soldered leads can still be appropriate for switch tabs, motor tabs, and repair harnesses when the drawing requires them. Our team supports both methods, but we recommend crimped or welded terminations for high-current battery paths where repeatability matters more than manual flexibility. The final choice should match the approved terminal, wire gauge, service environment, and inspection plan requirements exactly.

Yes. Replacement harnesses can be built from a drawing, approved sample, or connector and wire specification. We document the cavity map, conductor length, label position, and terminal type so service teams receive consistent parts across repair batches. We do not clone proprietary electronics or battery-management boards, but we can manufacture the wire harness, cable leads, and connectorized service pigtails around the approved mechanical interface. Model-specific bag labels can also reduce repair-station mix-ups across 10 or more tool variants during repairs.