Engineering Design & Test Rigs | CNR Services International Ltd

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Est. 1989

Precision Engineering Design Services

35 years of precision mechanical engineering design — serving aerospace, defence, automotive and industrial clients across the UK and worldwide.

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Our Services

CNR Services International is a UK engineering design consultancy with over 35 years of experience in precision mechanical engineering. Our work spans the full spectrum — from individual components, mechanisms and assemblies through to complete systems, test rigs, and special-purpose machinery. Whatever the scale or complexity, we support projects from concept through to production, combining technical rigour with practical innovation.

Engineering Design & Support

Detailed design support including CAD/CAE, FEA, assembly layouts, and manufacturing drawings; from concept studies to build support.

Design & Support

Test Rig Design &
Development

Design, manufacture, build and testing of bespoke test rigs for aerospace, automotive, materials, energy, and high-speed applications.

Test Rigs

Special-Purpose Machines

Custom-built machines, bespoke jigs and fixtures with precision mechanics and PLC/HMI integration; ready for production.

Bespoke Machines

Control
&
Sensing

Comprehensive design and integration of PLC/HMI architecture, panel builds, and data capture designed for seamless system control

Control Systems

Laser Alignment Services

Bespoke laser alignment for helicopter tail rotor drive shafts, rotors, and precision machinery.

Laser Alignment

Inspection
&
Calibration

Accurate inspection and calibration to support rigs, machinery, and manufacturing processes.

Inspection

Our Products

Purpose-Built Engineering Products

From MOD-accredited laser alignment systems to material galling rigs and bespoke composite machinery, our products are designed, built and tested in-house — engineered for precision, durability and the demands of aerospace, defence and industrial applications.

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Over 35 Years of Engineering Expertise

Since 1989, CNR has delivered precision engineering design services and support across aerospace, automotive, energy, and industrial sectors. Backed by ISO 9001:2015, Cyber Essentials Plus, and strong partnerships with leading universities and industry, we turn innovative concepts into production-ready solutions; from test rigs and special-purpose machinery to control systems, instrumentation, and laser alignment

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F.A.Q.’s

Frequently Asked Questions

What engineering services do you offer?

We provide complete engineering design support, including 3D CAD modelling, analysis, detailed drawings, component manufacture, assembly and testing. Whether for a small part of a project or the entire programme, we can assist from concept through to completion.

Which sectors do you work with?

CNR works across aerospace, automotive, energy, defence, research, and industrial manufacturing. We collaborate with universities such as Nottingham, Imperial College London, and Cranfield, and support companies including Syensqo/Solvay, Keep Energy Systems, and Weartech, with approvals from Leonardo Helicopters.

Can you help with existing equipment as well as new projects?

Yes. We retrofit controls, add instrumentation, upgrade aging or legacy equipment, and provide engineering solutions for emerging challenges.

Do you design and manufacture your own machines?

Absolutely. CNR designs and produces its own special-purpose machinery, while also creating bespoke machines, fixtures, tooling, and processes for specialist requirements. All equipment is fully tested, commissioned, and delivered with operator training.

How do I know which service is right for my project?

Simply share your brief or project scope, and we’ll advise the best approach. Whether you need design, analysis, project support, or manufacturing guidance, we can provide quick, practical recommendations.

Can you support design & manufacturing?

Yes. CNR can support your project from concept through to completion, including design, analysis, manufacturing support, acceptance, and testing.

I’m working on a tight budget – can CNR still help?

Of course. Whether you’re a small business with limited resources or a multinational corporation,
CNR brings the same level of expertise and dedication. No matter your budget, we’re here to help
get your project off the ground.

Accreditations & Partners

CNR Services International work with the MOD

Ready to Talk?

Need a bespoke machine, precision test rig, or dedicated design support? Our team of experienced engineers are here to help.

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