Grainger and Worrall Designs,Makes, Innovates Your Future
Shaping your future, one complex casting at a time.
Future Shape Technology from the UK to the USA
Grainger and Worrall is a global leader in sand casting complex metal shapes. We support projects across North America from design consultancy, tool design and manufacture to prototype casting, finishing, machining, and assembly.
If you're a US-based business, click the button below to speak with our USA-Team.
40,000+
successful projects working with circa 1,000 customers in over 100 countries.
Grainger and Worrall have been at the cutting edge of casting technology for over seventy years. As regulatory changes have driven technological innovation, we have helped world-class motorsport and automotive companies (ICE and EV) move with the times.

Engineering
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Casting Simulation and Magma
In the past the traditional approach to casting development was by largely trial and error. This would involve producing a casting gating system by a foundry engineer’s best estimate, then if this failed, a second, third etc version would be produced until a satisfactory casting was achieved.
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Rapid Prototyping
We apply many approaches to rapid prototyping depending on the product production
requirements. Sometimes a hybridised rapid prototype is best, sometimes full rapid
prototyping is best, our experience in this complex field will add value to your program. Read more... -
Tooling Design and Patternmaking
Tool making is a core competency of Grainger & Worrall and we are one of few foundries to
resource and manage this entire activity in house. Both our pattern making facility and design capability is continually expanding to support our customers demand for directly milled high quality resin patterns and tooling up to fully automated production core-box rigs. Read more...
Castings
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Prototype Foundry
Casting a wide range of Aluminium Alloys for both pre-production and production intent prototypes.
Grainger & Worrall’s specialist prototype aluminium foundry approaches product development with a novel approach adding value, delivering successful high integrity precision sand castings for engine, vehicle, aerospace and industrial markets.
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Specialist Cast Iron Foundry
Casting a wide range of materials Grey Iron, Ductile Iron, Compacted Graphite Iron, Steel, NiRisist, ADI in weights from 1kg to 500kg. Grainger & Worrall’s specialist iron foundry approaches prototype products with an open mind adding value, delivering successful high integrity castings.
Machining
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Precision Machining
Our unique position in the market place has provided both insight and experience into the delivery of quality assured complex precision machined components across the automotive, aerospace and affiliated sectors.
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Cylinder Head & Engine Block
Grainger & Worrall Machining has developed a capability to machine high feature content Cylinder Heads and Engine Blocks without using traditional Horizontal techniques. Whilst our Horizontal approach offers cycle time advantages in the production environment, it also presents some disadvantages in the small batch and prototype environment.
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Procurement Outsourcing
Grainger & Worrall managed procurement outsourcing provides second tier supplier management and quality assured machining services in support of its high quality castings. Typically this reduces product development costs and allows our customers to focus on the overall product rather than managing additional subcontract service providers.
Want to know more about how we cast complex shapes?
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What we do...
2 minute watch
G&W is a world-leading expert in casting and machining complex metal shapes. This animation summarises the process in under 2-minutes.
Get to know us
10 minute watch
If you'd like to get to know us better but aren't yet ready to set up a meeting, no problem! We've put together a video which highlights some of our values and practices. Innovation, investment, quality, H&S, and environmental concern are all part of what make up the DNA of Grainger and Worrall.