What is Precision Engineering?
Precision engineering is the discipline of designing and manufacturing mechanical components and systems to extremely tight tolerances — often measured in microns (thousandths of a millimetre). It is one of the most technically demanding fields in manufacturing, requiring advanced equipment, skilled operators, and rigorous quality control at every stage of the production process.
At its core, precision engineering in Manchester involves the use of computer-controlled machinery — most commonly CNC (Computer Numerical Control) lathes and milling centres — to machine raw material into finished components that meet exacting dimensional specifications. These components must perform reliably in demanding environments, from food processing lines and medical devices to automotive assemblies and industrial machinery.
Precision engineering differs from general manufacturing in the level of accuracy and repeatability demanded. Where standard machining might work to tolerances of ±0.5mm, precision engineering typically works to ±0.01mm or tighter — and in specialist applications, tolerances of just a few microns are not uncommon. This level of accuracy requires not only state-of-the-art equipment but also deep knowledge of materials, cutting tools, workholding and metrology.
Elmax Engineering Ltd, based in North Reddish, Stockport, has been delivering precision engineering services to businesses across Manchester and the North West since 2003. Our team combines decades of experience with modern CNC technology to produce components that meet the most demanding specifications.
Precision Engineering in Manchester — A City Built on Manufacturing
Manchester has one of the most storied manufacturing histories of any city in the world. As the birthplace of the industrial revolution, Greater Manchester established itself as a centre of engineering excellence in the 18th and 19th centuries — and that tradition continues today. The city and its surrounding towns, including Stockport, Salford, Bolton and Oldham, are home to hundreds of precision engineering companies supplying components to industries across the UK and internationally.
The Manchester precision engineering sector is a significant contributor to the regional economy, employing thousands of skilled machinists, engineers and technicians. Modern Manchester precision engineering operations are characterised by investment in the latest CNC machining technology, skilled workforces trained to high standards, and a commitment to quality and on-time delivery.
Elmax Engineering is proud to be part of this thriving manufacturing community. Located just minutes from Manchester city centre in North Reddish, Stockport, we are ideally placed to serve businesses across Greater Manchester, Cheshire, Lancashire and beyond. Our proximity to major road networks and industrial estates makes us a convenient and reliable CNC machining partner for customers across the North West.
Materials Used in Precision Engineering
Precision engineering in Manchester encompasses a wide range of materials, each selected for its specific mechanical, thermal and chemical properties. At Elmax Engineering, we work with the following materials on a regular basis:
Mild Steel
The most widely used engineering material. Mild steel offers excellent machinability, good mechanical strength and is cost-effective for a wide range of applications. Commonly used in structural components, brackets, shafts and general engineering parts. It can be surface treated — such as case hardening, black oxidising or zinc plating — to improve wear resistance and corrosion protection.
Stainless Steel
Stainless steel is the material of choice where hygiene, corrosion resistance and durability are paramount. Grades 303, 304 and 316 are most commonly machined, with 316 offering the best resistance to aggressive chemicals. Used extensively in the food processing, medical and pharmaceutical industries. Stainless steel requires careful machining to prevent work hardening and tool wear.
Aluminium
Aluminium alloys are valued for their excellent strength-to-weight ratio, good corrosion resistance and superior machinability. Grades such as 6082 and 7075 are popular in aerospace, automotive and general engineering. Aluminium machines quickly, accepting tight tolerances readily, and can be anodised for additional surface protection and aesthetic finish.
Brass & Copper Alloys
Brass (copper-zinc alloy) is one of the most easily machined metals available, producing excellent surface finishes with minimal tool wear. It is widely used in electrical components, valve bodies, fittings and decorative applications. Copper alloys offer superior electrical and thermal conductivity, making them ideal for electrical engineering applications.
Hardened & Tool Steels
For applications demanding exceptional wear resistance and hardness, tool steels such as EN24, EN36 and D2 are used. These materials are typically roughed out in the soft condition, heat treated to the required hardness, then finish ground to final dimensions. Cylindrical grinding is the primary method used to achieve tight tolerances on hardened components.
Engineering Plastics
Materials such as Nylon, PEEK, Acetal (Delrin), PTFE and Polycarbonate are machined for applications requiring low friction, electrical insulation, chemical resistance or reduced weight. Engineering plastics are commonly used in food processing equipment, medical devices and applications where metal-to-metal contact must be avoided.
Tooling Used in Precision Engineering
Achieving precision machined components to tight tolerances requires not only the right machinery but also the correct cutting tools, workholding solutions and measurement equipment. Here is an overview of the key tooling used in precision engineering:
CNC Turning Inserts
Indexable carbide inserts are the primary cutting tool in CNC turning. Available in a vast range of geometries, grades and coatings (TiN, TiCN, TiAlN), inserts are selected based on the workpiece material, required surface finish and depth of cut. Coated carbide inserts provide longer tool life, higher cutting speeds and better surface finish compared to uncoated alternatives. Threading inserts, grooving tools, parting blades and boring bars extend the range of turning operations possible.
CNC Milling Cutters
End mills, face mills, slot drills and ball nose cutters form the core of the CNC milling tool range. Solid carbide end mills offer superior rigidity and cutting performance for finishing operations, while indexable face mills with replaceable inserts are economical for large face milling operations. High-speed steel tools remain cost-effective for certain materials. Drill bits, reamers and thread mills complete the milling tool inventory, enabling holes, bores and threads to be produced in a single setup.
Grinding Wheels
Cylindrical grinding uses precision aluminium oxide or CBN (cubic boron nitride) grinding wheels to achieve surface finishes and tolerances unattainable by turning alone. CBN wheels are particularly effective on hardened steels, offering long wheel life and consistent results. Wheel selection — including grit size, grade and bond type — is critical to achieving the required surface roughness and dimensional accuracy. Dressing the wheel regularly with a diamond dresser maintains sharpness and form.
Workholding Equipment
Accurate workholding is essential for precision engineering — a component cannot be machined to tight tolerances if it is not held rigidly and accurately. Three-jaw and four-jaw chucks, collet chucks, face plates and mandrels are used in turning, while machine vices, angle plates, V-blocks and custom fixtures secure components on milling machines. Correct workholding eliminates vibration, prevents component movement during cutting and ensures repeatability across a batch of parts.
Slotting Tools & Broaches
Keyways, splines and internal slots require specialist tooling. Slotting cutters on a slotting machine use a reciprocating cutting action to produce internal and external slots and keyways. Broaching pulls or pushes a multi-toothed cutting tool through a pre-drilled hole to produce internal keyways, splines and non-circular profiles in a single pass. Both processes are essential for producing drive components, gear hubs and shafts with precise engagement features.
Measurement & Inspection Equipment
Precision engineering demands equally precise measurement. Micrometers, vernier callipers, dial test indicators, bore gauges and surface roughness testers are used throughout the machining process to verify dimensions. Gauge pins and ring gauges provide fast go/no-go checking on high-volume production. Every component produced by Elmax Engineering is inspected before despatch to ensure it meets the customer's specification and drawing requirements.
Our Precision Engineering Capabilities in Manchester
Elmax Engineering Ltd offers a comprehensive range of precision engineering services in Manchester and Stockport. As an established CNC machining company, our facility in North Reddish is equipped with modern CNC turning and milling centres, cylindrical grinding machines and slotting equipment, enabling us to handle a wide variety of components in a single location.
We manufacture components from single prototypes through to large production batches, maintaining consistent quality throughout. Our experienced workforce — with decades of collective precision engineering knowledge — applies the same high standards whether producing one part or one thousand. Fast setup times, efficient programming and flexible scheduling allow us to meet tight deadlines without compromising on quality.
We serve a wide range of industries including food processing, medical, automotive, construction and general engineering, supplying precision machined components that our clients rely on day in, day out.
Frequently Asked Questions — Manchester Precision Engineering
Precision engineering refers to the manufacture of components to extremely tight dimensional tolerances — typically ±0.01mm or better. Standard machining works to broader tolerances (±0.5mm or more), which is adequate for many applications but insufficient where parts must fit, seal or function with high accuracy. Precision engineering uses advanced CNC equipment, specialist tooling and rigorous inspection to achieve the accuracy required for demanding applications in sectors such as medical, aerospace, food processing and automotive.
We regularly machine a wide range of materials including mild steel, stainless steel (grades 303, 304 and 316), aluminium alloys, brass, copper, tool steels and hardened steels. We also machine engineering plastics such as Nylon, PEEK, Acetal and PTFE. If you require a material not listed here, please contact us and we will advise on whether it falls within our capability.
Our CNC turning and milling operations routinely achieve tolerances of ±0.01mm to ±0.025mm. Cylindrical grinding can achieve tolerances of ±0.005mm or tighter on diameters and lengths. The achievable tolerance depends on the material, component geometry and feature size — our team will advise on what is realistic for your specific component at the quoting stage.
We work on everything from single one-off prototypes through to large production batches. Many of our customers come to us initially with a prototype requirement, and as their product develops we grow with them into repeat production orders. Our CNC equipment enables fast setup times that make small batch work economically viable, so you never need to order more than you need.
Getting a quote is straightforward. Send us your drawings, CAD files (STEP, DXF or PDF) or a sample part via email at Cameron@elmax-engineeringltd.uk, or use the contact form on our website. Include any specific material requirements, tolerances, quantity and required delivery date. We will review your enquiry promptly and provide a competitive quotation. You can also call us on 0161 432 8840 to discuss your requirements directly.
We supply precision machined components to a wide range of industries including food processing and beverage, medical and pharmaceutical, automotive, construction, roll forming machinery manufacturers, and general engineering. Our clients range from small specialist manufacturers to large industrial companies across Manchester, Stockport and the wider North West.
Elmax Engineering Ltd is based at Unit 7, Kenwood Road, North Reddish, Stockport, SK5 6PH — just minutes from Manchester city centre. We serve customers across the whole of Greater Manchester, including Manchester, Stockport, Salford, Bolton, Oldham, Rochdale, Wigan, and Trafford, as well as Cheshire, Lancashire and beyond. Components can be collected or we can arrange delivery.
CNC turning rotates the workpiece while a stationary cutting tool removes material — ideal for cylindrical parts such as shafts, bushes and flanges. CNC milling holds the workpiece stationary while a rotating cutting tool machines the surface — used for flat faces, pockets, slots and complex profiles. Many components require both turning and milling operations, which we can perform in-house to avoid additional handling and lead time.
Yes. We regularly machine stainless steel components for the food processing industry, including mixer shafts, agitator parts, flanges, housings and bespoke fittings. We work with grades 304 and 316 stainless steel, which are widely specified for food contact applications. Our team understands the surface finish requirements for hygiene-critical components and can achieve smooth, cleanable surfaces that meet food industry standards.
Elmax Engineering Ltd was founded in August 2003 and has been delivering precision engineering services from our Stockport facility for over 20 years. In that time we have built long-term relationships with customers across Manchester and the North West, supplying thousands of precision machined components across a wide range of industries. Our experience, reliability and commitment to quality are at the heart of everything we do.
Ready to Work with a Precision Engineering Company in Manchester?
Contact Elmax Engineering Ltd today for a fast, competitive quote on your precision machined components. Based in Stockport, serving Manchester and the North West since 2003.