Box Build & Testing

Final assembly

Before the line starts, the assembly process sheet is written from your drawings and reference sample: work broken down by station, screw specification and torque, assembly sequence, label positions and cosmetic requirements. Engineering and quality sign off the first unit together before the rest of the batch is built. A drawing change mid-run goes through a change note, and superseded documents are pulled from the stations at once, so two revisions never run side by side.

Cable and mechanical assembly

Cables are cut, stripped, crimped, sleeved and marked to your drawing. Crimps are pull-tested on a sample basis and continuity checked, and connectors are verified fully seated before any retainer or adhesive is added. On enclosure and mechanical work we watch fit and gap, and protect cosmetic surfaces with gloves and padded benches so parts reach packing unscratched.

Functional test and burn-in

Functional test runs to your test specification, or to one we write and you approve, exercising functions and interfaces under simulated operating conditions. Results are recorded against the unit serial number. Where reliability matters, units go on burn-in: powered continuously at a defined temperature and load for a set time to screen early failures, then retested afterwards, with both sets of results filed.

Programming and serialisation

Production programming, serial numbering and label printing are quoted job by job rather than carried at a standard rate, so name the device and firmware image, the numbering scheme and the label artwork in the RFQ and they are priced with the build.

Test fixtures

We build test fixtures and assembly locating fixtures. Test points, clamping method and pass or fail criteria are agreed with you before the fixture is made, and the finished fixture is proved on sample units for repeatability. In service, fixtures are checked and calibrated on a schedule, worn probes and intermittent contacts are replaced, and the check record is kept with the fixture. If you already have a fixture, ship it with the kit and we will run it.

Packing and outgoing inspection

Packing follows your specification, including inner trays, ESD bags, desiccant, manuals and accessories. Carton markings and labels are printed to your artwork. Before shipment each batch is sampled for appearance, function, accessory count and label accuracy, the packing list is checked against the contents of each carton, and the inspection record ships with the goods.

Capability

Assembly types	Full unit assembly, sub-assembly, manual assembly line work
Assembly scope	PCBA fitting, cable assembly and termination, mechanical and enclosure assembly, labelling
Test	FCT, burn-in, power-on check, visual inspection
Board-level test	AOI, X-ray, ICT, flying probe
Programming and marking	In-circuit or production programming, serial numbering and label printing, quoted per job
Fixtures	Test fixtures, assembly locating fixtures and packing fixtures, built to your requirement
Upstream processes	SMT and through-hole assembly on the same site, able to run in line with box build
Workshop	Temperature and humidity controlled, ESD-controlled floor
Shipment	Packed to your specification, batch sampled before shipment, inspection record supplied