CNC Machining, Welding & Fabrication for Demanding Industries
Heaps, Arnold & Heaps Ltd offers precision engineering and fabrication services from our UK facility in Rotherham. With many years of experience serving aerospace, nuclear radiation shielding and medical radiation shielding markets, defence and chemical industries, we provide high-quality machined and fabricated components manufactured from all types of material — using customer technical drawings and our state-of-the-art CNC machinery.
In addition to our engineering services, we offer high-quality welding and fabrication with up to 5-ton capacity. Whether you need a one-off prototype, a small batch run, or high-volume production, our flexible workforce and modern equipment deliver to your specification on time and to critical tolerances. With over 250 years of metallurgical heritage behind us, we combine traditional craftsmanship with modern technology to deliver components that meet the most exacting industry standards. Browse our full product catalogue or contact our engineering team to discuss your project.
Modern CNC Facility
State-of-the-art CNC turning, milling, grinding and EDM equipment delivering components to critical tolerances across all material types.
5-Ton Welding Capacity
MIG/TIG welding and fabrication up to 5 tons. Multi-material capability including stainless steel, aluminium, cast iron and specialist alloys.
Flexible Production
Single prototypes through to high-volume production runs. Quick response to project changes with no minimum order quantity.
CNC Machining & Fabrication for Aerospace, Nuclear, Medical, Defence & Chemical
Our precision engineering services cover the complete manufacturing process — from initial drawing review through CNC machining, welding, fabrication and finishing.
Whether you need a single specialist component, a small batch for a development project, or a scheduled production run supporting OEMs, our team delivers to the exacting standards demanded by aerospace, nuclear, medical and defence industries.
CNC MACHINING
WELDING & FABRICATION
MATERIALS WE WORK WITH
Send us your drawings, specifications or sample components — our engineering team will review and respond within one working day with feasibility, lead time and quotation.
Multi-Disciplinary
CNC machining, welding, fabrication, grinding, EDM and heat treatment — multiple disciplines under one roof for complete project delivery.
Critical Tolerances
Modern CNC machinery and quality inspection ensure components are manufactured to the precise tolerances required by demanding industries.
All Materials
Stainless steel, aluminium, cast iron, brass, carbon steel, lead alloys and specialist materials — chosen for your specific application.
Flexible Capacity
One-off prototypes through to high-volume production runs. Welding capacity up to 5 tons. Quick response to project changes.
Aerospace, Nuclear, Medical, Defence & Chemical Industries
Our precision engineering capabilities support clients across a wide range of demanding sectors. Each industry has its own technical requirements, tolerance demands and compliance considerations — our experienced team understands these differences and delivers components manufactured to your sector’s exacting standards.
CNC-machined components and fabricated parts for construction equipment and joinery manufacturers
Precision components, welded assemblies and machined parts for marine and offshore engineering
High-precision machined components for medical equipment manufacturers and radiation handling systems
Machined fixtures, tanks and fabricated components for plating and surface finishing operations
Precision-engineered components manufactured to nuclear and defence sector specifications
Bespoke machined parts, custom fabrication and welding repair for automotive restoration
Precision Engineering — Frequently Asked Questions
What CNC services do you offer?
We offer a comprehensive range of CNC services including CNC turning, CNC milling, low and high volume batch production, tool manufacture, one-off components, surface and cylindrical grinding, spark erosion (EDM) and heat treatment. Our state-of-the-art machinery enables us to work to critical tolerances on a wide range of materials.
What materials can you work with?
We work with most engineering materials including stainless steel, aluminium, brass, carbon steel, cast iron, lead alloys and specialist alloys. If you have a specific material requirement or are unsure which is best for your application, our team can advise based on your component's function, environment and budget.
What is your welding capacity?
We have welding and fabrication capability up to 5 tons. We offer MIG/TIG welding, cast iron welding and repair, aluminium welding and repair, alloy wheel repair, plasma cutting, rolling and bending. Both shop-based and on/off-site welding are available.
Can you produce one-off components and prototypes?
Yes. We regularly produce one-off components and prototypes — particularly for restoration projects, product development and specialist applications. There is no minimum order quantity — we manufacture to your specification whether you need one piece or thousands.
Do you work from customer drawings?
Yes. We work from customer technical drawings, CAD files, sample components or even basic sketches and dimensions. If your drawings need refinement or you require design assistance, our engineering team can help interpret requirements and recommend the most efficient manufacturing approach.
What industries do you supply?
Our precision engineering services support clients across aerospace, nuclear, medical, defence and chemical industries, as well as general industrial manufacturing. We understand the differing tolerance, material and compliance requirements of these sectors. Learn about our specialist lead engineering capabilities for nuclear and defence applications.
Can you offer mobile or on-site welding?
Yes. We can help with any on/off-site welding — including welding repair or replacement using alloys such as aluminium, stainless steel, cast iron, carbon steel and brass. Capabilities include welding pipes, flanges, coupling, elbows and full penetration welds.
What's your typical lead time?
Lead time depends on the complexity, quantity and current production schedule. Standard machined components are typically available within 1–3 weeks. Complex fabricated assemblies or large production runs may take longer. We confirm exact lead times when we issue your quote.
How do I get a quote?
Contact our engineering team with your drawings, specifications and quantity requirements. Call +44 (0)1709 837669 or email heaps@heapsarnold.com. We respond within one working day with feasibility, lead time and indicative pricing.