OF Bell's fully-assembled, complex miniature electronic components and assemblies are a crucial part of supply chains and production lines, both within the UK and worldwide.
Driving national and international organisations forward, reliable electronic components and assemblies are Made in Britain at our base in Bishop Auckland, Co. Durham base by our experienced, ISO-certified team, protecting your business's interests with confidential processes and continuity of supply that enables organisations across countless sectors to achieve their full potential.
Complex electronic components &assemblies by OF Bell's specialists in Co. Durham
Electro-magnetic, complex miniature electronic components and assemblies, transformers and solenoids are designed by OF Bell to be capable of scalable production entirely in-house at our Bishop Auckland facility in Co. Durham. Our unique manufacturing facilities support end-to-end manufacturing, taking each concept through thorough product design and development, into production and dispatch.
OF Bell manufactures complex electronic components and assemblies for applications and organisations including:
- Electronic sensor wound coil components for subsea applications in the oil and gas sector
- Complex miniature sensor electronic assemblies for manufacturing processes in textiles and carpet weaving
- Miniature electronic components and assemblies used in fault detection sensors by utilities sector clients
- Self-supporting wound coil electronic components used for strength analysis in suspension systems
Electronic component & assembly manufacture in Co. Durham that protects your commercial interests
Complete product confidentiality is of paramount importance to many of our clients. By delivering each aspect of our electronic component and assembly manufacturing processes under one roof in Bishop Auckland, Co. Durham, including tooling design and build, OF Bell does not rely on sub-contractors or outsourced resource at any stage of manufacture.
From the very start, you'll know who you're working with and where your electronic components and assemblies are produced. You're welcome to meet us at our facility in Co. Durham to discuss your project, view our manufacturing areas and speak to our small, specialist team to find out how OF Bell will support the confidential manufacture of your complex miniature electronic components and assemblies.

Complete electronic component & assembly manufacture by OF Bell's engineering experts in Co. Durham
From development of your product concept and initial prototypes, to bespoke tooling, moulded plastics, and component assembly, OF Bell delivers fully-tested electronic components that are proudly Made in Britain.
Product design & development of complex electronic components, assemblies & miniature parts
OF Bell is a miniature and complex component specialist, combining engineering and manufacturing knowledge during this hands-on consultancy phase to design and develop cost-effective, scalable electronic components and assemblies which perform to their best once in situ.
Whether working with a drawing, a prototype or a new idea, OF Bell's product design and development engineers work with you to create complex, miniature electronic components and assemblies backed by excellent understanding of how your components, parts and assemblies will be used in practice.
Often relevant to metal replacement projects, materials consultancy recommends robust and cost-efficient manufacturing materials, and our in-house prototyping processes, including 3D printing for small production runs or trial products, deliver samples quickly in order to seamlessly move your miniature electronic components and assemblies into production.
In-house tooling design for manufacture of miniature electronic components, assemblies & parts in Co. Durham
Our in-house tooling workshop is a space we're really proud of. Continually investing in up-to-the-minute technologies for ever-greater precision and complexity, OF Bell produces all of our own tooling without reliance on external resource, and we only produce tools for our own clients' projects. No supply issues, no distractions and no delays!
Fully-tested and quality-monitored single or multi-cavity tooling is designed by our experienced engineers using 3D CAD modelling before production in the workshop using equipment such as our Fanuc Robodrill. Prototype products and tools are evolved and tested by you and our team working in partnership, before production of your complex, miniature electronic components, assemblies and parts moves into our manufacturing area.
Miniature, complex injection moulding to support manufacture of electronic components, assemblies & parts
OF Bell's manufacturing facility is equipped with specialist injection moulding technology for the manufacture of miniature moulded plastics used in complex electronic components, assemblies and parts.
With clamp forces from just 6T for the smallest bobbins and moulded plastic components, delivering shot weights from 0.5g, injection moulding by OF Bell maintains the quality of plastics without wastage during production, utilising our precision tooling developed in-house to maximise production output.
UK-based 24/7 production capacity and strict in-process and output check quality control measures ensure a consistent, fast supply of electronic components and assemblies that your organisation can rely on, keeping your production lines and supply chains stocked without the need for unreliable overseas imports.
Expert electronic component assembly in Co. Durham by OF Bell
Completing our end-to-end services, OF Bell's electrical engineering specialists assemble complete electrical, magnetic and electronic components in-house in Bishop Auckland, Co. Durham, fully-testing each component and assembly to strict quality standards to deliver consistently reliable components and assemblies which are trusted to perform in the field - however they're applied.
Following assembly, including coil winding of wires down to just 0.0125mm, pressure and vacuum potting, cable preparation, insert and overmoulding, OF Bell works with you to develop in-situ testing processes suited to your product's application, whether that's testing coils in a magnetic field, or using pressure or acoustic testing, to ensure excellence in electronic component and assembly performance.
Complex miniature electronic components & assemblies by Co. Durham's OF Bell

Since 1973, OF Bell has worked alongside clients in countless sectors, from oil, gas and utilities to medical, construction, consumer goods and household products, as a trusted manufacturing partner based wholly in the UK to deliver fully-assembled, tested and quality-assured complex electronic components, assemblies and moulded plastics that form a vital part of supply chains across the UK and worldwide.
ISO-certified, Bishop Auckland-based in Co. Durham, and with over 50 years' experience, from confidential in-house product design and development to injection moulding, assembly and testing of precision electronic, electrical and plastic parts, miniature and complex components by OF Bell enable client businesses to achieve their full potential through reliable, confidential and complete complex component engineering.
Find out more about complex electronic component manufacturing in Co. Durham with OF Bell
OF Bell's miniature electronic component engineering team in Bishop Auckland, County Durham, delivers reliable, consistent and highly-accurate electronic components, assemblies and moulded plastic parts for cross-sector organisations in the North East and further afield. Get in touch to find out more about our manufacturing processes and book a meeting with our team.