Roscan Electronics FAQs – UK CEM, PCB Assembly & Manufacturing Answers
Roscan Electronics is a UK Contract Electronics Manufacturer (CEM) specialising in PCB assembly, cable and harness manufacture, box build, and full electronic manufacturing services.
This FAQ page answers the most common questions we receive about our capabilities, processes, lead times, quality standards, and how we support customers across multiple industries. If you’re looking for a reliable UK electronics manufacturing partner, the information below will help you understand how we work and what you can expect from our service.
Frequently Asked Questions About Our UK Electronics Manufacturing Services
Why should you choose a UK EMS/CEM rather than overseas?
Working with a UK EMS/CEM gives you faster communication, shorter lead times, and far greater control over your electronics manufacturing. You avoid long shipping delays, import duties, and quality risks associated with offshore production. A UK partner also ensures compliance with UK/EU standards, easier design reviews, and the ability to visit the facility whenever needed.
What lead-time can you offer on your rapid electronic prototyping service?
Rapid prototypes are prioritised and can often be produced within a few days, depending on component availability and build complexity. Our rapid prototyping service is designed to help you validate designs quickly and transition smoothly into full production.
What is your standard turn-around time on RFQs?
Most RFQs are returned within 24–72 hours. More complex builds, or those requiring component alternatives, may take slightly longer. If your project is time‑critical, we can prioritise your quotation to support urgent schedules.
What’s the factory manufacturing capability?
We provide full end‑to‑end electronics manufacturing including SMT, PTH, mixed‑technology assembly, cable and harness manufacture, box build, testing, conformal coating, and final product integration. Our equipment supports fine‑pitch, high‑density, and complex PCB assemblies.
Can you conformally coat PCBAs?
Yes. We offer selective and manual conformal coating using industry‑approved materials. This protects PCB assemblies from moisture, dust, vibration, and harsh operating environments, improving long‑term reliability.
What’s the smallest SMT/SMD component you can place?
We can place components down to 01005, including fine‑pitch ICs, micro‑BGAs, and high‑density packages. Our SMT lines are designed for precision placement and consistent quality.
What’s the largest SMT/SMD component your SMT line can place?
We can place large connectors, modules, and oversized components up to approximately 150mm depending on geometry. If you have a specific part, we can confirm suitability during the engineering review.
Do you offer box build?
Yes. We provide complete box build and product integration services, including wiring, enclosure assembly, mechanical integration, labelling, testing, and packaging. We can deliver fully finished units ready for distribution.
What batch sizes can you handle?
We support everything from one‑off fast prototypes to medium and high‑volume production runs. Our processes are scalable, allowing us to adapt to your project’s lifecycle from early development to full production.
What information do you require to prepare a quote?
To provide an accurate quotation, we typically need your BOM, Gerber files, assembly drawings, quantities, test requirements, and any special build notes. If your manufacturing pack isn’t complete, we can still review what you have and advise on any missing documentation to keep the project moving.
What information is normally in a standard manufacturing pack?
A complete manufacturing pack typically includes: Gerber files, BOM, ODB++, assembly drawings, test instructions, mechanical drawings, and any quality or regulatory notes. A complete pack ensures a smooth and accurate build.
Do you test PCBAs and finished box build units?
Yes. We offer AOI, functional testing, continuity testing, programming, and bespoke test solutions. For box build units, we can test the full product to ensure it meets your performance and reliability requirements.
What internal quality standards do you work to?
We follow IPC standards, ISO‑aligned processes, and industry best practices. Every assembly is inspected, traceable, and documented to ensure consistent quality across all stages of production.
What is the maximum board size your production line can handle?
We can handle a wide range of PCB sizes, including large‑format boards. If you have an oversized or unusually shaped PCB, we can confirm compatibility during the engineering review.
Can you make a prototype?
Yes. We specialise in rapid prototype assembly to help you validate your design, test functionality, and prepare for production. We can also provide design‑for‑manufacture feedback to improve build efficiency.
What technology is used within your electronic manufacturing service?
We use modern SMT placement, reflow, selective soldering, AOI, X‑ray inspection, conformal coating, and full test equipment. Our processes support fine‑pitch, high‑density, and complex PCB assemblies.
What is the warranty period on your products?
Warranty periods vary depending on the product and agreement, but we typically offer a standard manufacturing warranty covering workmanship and assembly quality for a minimum of 12 months. Extended warranty options can be discussed for specific projects.
Where do you source components?
We source components from approved global distributors and manufacturers to ensure full traceability and authenticity. We avoid grey‑market parts and can recommend alternatives when components are constrained or obsolete.
How do I find a suitable EMS/CEM for my business?
Look for a CEM with proven capability, transparent communication, strong quality processes, and experience in your industry. Visiting the facility, reviewing sample builds, and understanding their supply chain approach will help you choose the right partner.
Why choose us as your EMS/CEM?
We offer reliable UK manufacturing, transparent communication, flexible scheduling, and strong engineering support. Our focus is long‑term partnerships built on trust, quality, and consistent performance across every project.
Discuss your PCB Assembly & EMS requirements with our team
Contact Roscan Electronics
01189 737 287
sales@roscan.co.uk

