System Assembly / Box Build

Comprehensive Assembly Solutions

At Stewart Technology, we provide end to end Box Build Services designed to streamline your production process and deliver fully integrated, ready to ship electronic systems. Our decades of experience in electronics manufacturing means we offer precision assembly, reliable quality control and flexible support for products at any stage of development.

From prototype builds to full-scale production, our complete system-level assembly service gives you a single, dependable partner capable of managing the entire device build.

We excel in handling complex devices which require careful coordination and our professional team treat your products with the utmost care and consideration.

What is Box Build?

A box build or system integration is the full assembly of your electronic product beyond the PCB. Stewart Technology handles every step from integrating PCBAs into enclosures, installing wiring and mechanical components, performing system testing and preparing units for final shipment.

We support products ranging from early prototypes to large-scale production, ensuring consistency, performance and manufacturing efficiency.

The box build process comprises a variety of steps, outlined below –

Mechanical Assembly

PCBAs, displays, sensors, motors and hardware installed precisely to your specification.

Cable and Wire Harness Integration

Cutting, crimping, routing and termination with clean, secure, strain-relieved connections.

Enclosure Integration

PCBAs are secured into custom or off-the-shelf enclosures, including labelling and engraving.

System-Level Testing

Functional testing and connectivity checks are completed on every unit.

Software and Firmware Loading

Version-controlled flashing, provisioning and serialisation, fully documented for traceability.

Packaging and Fulfilment

Custom packaging, kitting, labelling and shipping tailored to your schedule.

Why Choose Stewart Technology?

One partner under one roof

PCB assembly, box build, harnessing and testing all in one place, so there’s no juggling multiple suppliers.

Quality you can trace

ISO 9001 and ISO 13485 certified processes, with full traceability built into every build.

From prototype to production

We scale with you, from first builds to full production, without compromising on precision.

Engineering-led support

Practical advice from experienced engineers who spot issues early and help improve your design.

Interested in Our Services?

If you are interested in how our Electronic Manufacturing Services could benefit your business please contact us!