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 upmost care and consideration.
What is Box Build?
A box build or systems 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
At Stewart Technology, our box build capabilities cover every aspect of mechanical assembly, ensuring that any PCBAs, mechanical hardware, displays, sensors and supporting components are installed with precision and consistency. We integrate brackets, fasteners, motors and interface modules according to your exact specifications, delivering clean, reliable mechanical builds that are ready for system-level validation.
Cable and Wire Harness Integration
Our team also specialises in cable and wire harness integration, handling everything from cable cutting and crimping to routing and termination. We ensure clean harness organisation, proper strain relief and secure connections throughout the build, helping to improve long-term reliability and system maintainability.
Enclosure Integration
Enclosure integration is another core strength of our box build services. Whether your product requires a custom-designing housing or an off the shelf enclosure we manage the full assembly process, including labelling, engraving and environmental protection steps. Grounding, bonding and enclosure preparation are performed with strict adherence to quality and safety standards.
Advanced System-Level Testing
To guarantee consistent performance, Stewart Technology conducts comprehensive system-level testing on every assembly. Our testing capabilities include functional and in-circuit testing, burn-in procedures, power and signal verification and connectivity checks across hardware and network interfaces. We validate firmware, communication links and operating behaviour to ensure your product meets all required performance criteria before shipment.
Software and Firmware Loading
We also provide full software and firmware loading services, including version-controlled firmware flashing, OS installation, device provisioning and serialisation. Data loading is performed securely and accurately, with configuration steps documented for complete traceability.
Final Packaging and Fulfillment
Once assemblies are complete, Stewart Technology manages all final packaging, labelling and fulfillment tasks. We offer custom packaging solutions, multi-unit kitting, barcode and serial labelling, and logistics coordination to simplify your supply chain. Whether you need units drop-shipped to end customers or stocked for scheduled releases, we tailor our fulfillment process to your production requirements.
Why Choose Stewart Technology for Box Build?
A True Manufacturing Partner
We treat your product as if it were our own, providing engineering-informed assembly and proactive support at every stage.
Fully Integrated Capabilities
PCB assembly, box builds, cable harnessing and testing are all handled under one roof, simplifying your supply chain and eliminating the need for multiple vendors.
Consistent Quality and Full Traceability
Our quality-controlled processes ensure reliability from prototype through to full-scale production, with documented traceability built into every build.
Scalable Production Flexibility
Whether you need rapid prototyping or high-volume manufacturing, we scale seamlessly without compromising precision or repeatability.
Engineering-Driven Insights
Our experienced team helps refine designs, identify potential issues early and support complex assemblies with technical expertise.
Clear, Responsive Communication
You receive timely updates, transparent project visibility and a team that actively solves your challenges instead of reacting to them.
Efficient Manufacturing
Streamlined processes, optimised workflows and disciplined production scheduling ensure dependable on-time delivery.
High-Reliability Results
For products where performance and consistency cannot be compromised Stewart Technology delivers assemblies built right the first time and every time.
Interested in Our Services?
If you are interested in how our Electronic Manufacturing Services could benefit your business please contact us!