Grainger & Worrall

Grainger & Worrall The world’s leading total castings solutions provider, supporting the automotive, EV, motorsport and aerospace sectors. And they give us part of our DNA.

Remaining true to a core philosophy of absolute customer service, while expanding our offer as technology allows, Grainger and Worrall is at the global forefront of castings development and innovation. The world is demanding ever-lighter, ever-more efficient means of propulsion and at Grainger & Worrall, we are helping to drive that trend. However, we are only able to because of almost three-quart

ers of a century of accrued know-how. No other castings organisation has the same resources or history of delivery. Some will know of us as a foundry – and that’s only part of the story. We are extremely proud of our history and it is that track record that gives us the foundations of our contemporary solutions. Those intricate layers of experience provide us with an unrivalled understanding of geometry, tooling and pattern-making. The other element of our outlook is an utter focus on the needs of the client and an ability to rise to a challenge – any challenge that will see us delivering imaginative and ground-breaking programmes. We are privileged to have world-class customers, and organisations that lead the world in their respective spheres – and we continue to deliver innovation to help them stay there. Our services encompass up-front engineering, precision machining and consultancy that is in your language and backed by real science, right from the very early stages of the supply and development chain. By making our own tooling and both understanding and embracing cutting edge rapid prototyping technologies we take your concept through to production and we’re quick and dynamic because of our experience. We are very open-minded to change – market change, regulation change, fundamental energy change. In many respects, we think we’re unique, underpinned by an underlying ethos of humility and respect, for our clients, our employees and our suppliers. Yet that does not compromise on an insatiable desire to keep delivering ground-breaking innovation to our client base now, and in the future.

The UK’s Defence Industry is entering a period of significant transformation that is driven by a Defence Industrial Stra...
27/08/2026

The UK’s Defence Industry is entering a period of significant transformation that is driven by a Defence Industrial Strategy that pivots to an increased focus on strengthening national capability; a strategic move toward warfighting readiness and homeland resilience, requiring the UK industrial base to scale production rapidly alongside international NATO operations and push innovation beyond conventional boundaries.

For businesses operating across the Engineering and Manufacturing sectors, the prioritisation of domestic manufacturing, rapid technology innovation and increased defence investment will create a healthy environment leading to an output of new opportunities to drive innovation, leading to the development of specialist skills that will strengthen the UK’s Industrial base.

Advanced Manufacturing capabilities play a vital role in the strategy, allowing UK Industry to design and develop complex components, assemblies and products.

It stimulates Designers and Engineers to challenge key issues such as lightweightness and the optimisation of the materials characteristics to support the technologies that underpin modern defence systems.

At Grainger & Worrall, we understand the importance of precision engineering, collaboration and continuous innovation when working on complex projects.

We help aerospace and defence engineers move quickly from CAD model to functional prototype through rapid aluminium sand castings, design optimisation, prototype tooling and low-volume production support.

As the defence landscape evolves, maintaining strong manufacturing expertise will be key to building resilient supply chains here in the UK.

Discover how we’re supporting advanced manufacturing projects: https://gwcast.com/sector/defence/

The component in the image has been AI-generated and had its dimensions changed for NDA purposes.

Our LEAN Manufacturing Level 2 cohort has reached an important milestone, moving from classroom learning into real impro...
05/08/2026

Our LEAN Manufacturing Level 2 cohort has reached an important milestone, moving from classroom learning into real improvement projects across the business.

Five months into the course, the group has completed modules covering health & safety, workplace organisation, communication and employee roles and responsibilities. They have now developed a shortlist of improvement projects and will begin conducting 5S audits to identify opportunities across the site.

Working alongside our Process Engineering team, they'll be exploring ways to improve how we work.

These aren't hypothetical exercises. The projects they deliver will have a genuine impact on operational performance, with their findings feeding directly back into the business.

It's great to see the group putting their learning into practice. Good luck to everyone involved.

A big thank you to City of Wolverhampton College for their support in delivering the programme.

A huge congratulations to Owen, who has graduated with a distinction in his Higher National Certificate (HNC) in Manufac...
29/07/2026

A huge congratulations to Owen, who has graduated with a distinction in his Higher National Certificate (HNC) in Manufacturing Engineering at Shrewsbury College.

Over the past two years, Owen has successfully completed both his HNC and Level 4 NVQ, achieving Level 4 Engineering Technician status. Throughout the course, he has developed valuable knowledge in project management, product design, quality and process engineering, building a strong foundation for the next stage of his engineering career.

Achieving a distinction is an excellent result in itself, but Owen went one step further, achieving a distinction in every assignment across the two-year programme.

We're incredibly proud of Owen's hard work and dedication.

Supporting and developing engineering talent from the very start of their careers is something we're passionate about, and it's fantastic to see our apprentices achieve milestones like this.

Congratulations again, Owen; we're excited to see where your career takes you next!

Can you really beat ice cream in the sun?Yesterday we treated the team to an afternoon with the ice cream van, and it's ...
24/07/2026

Can you really beat ice cream in the sun?

Yesterday we treated the team to an afternoon with the ice cream van, and it's safe to say it went down well!

From classic Mr Whippy to refreshing slushies, we got through more than 2,000 refreshments across the day.

It was a great excuse to step away from our desks, catch up with colleagues from across the business.

Sometimes it's the small moments that make the biggest difference.

What happens when you combine engineering, creativity and a team that's always up for a challenge?Over the weekend, we t...
17/07/2026

What happens when you combine engineering, creativity and a team that's always up for a challenge?

Over the weekend, we took to the streets of Telford for Krazy Races with a gravity-powered go-kart inspired by the iconic 1988 McLaren Formula 1 car.

Starting with an old quad bike frame, we reimagined it from the ground up. We cast and machined our own wheel spacers, 3D printed bespoke components, extended and widened the chassis, lowered the suspension and created lightweight bodywork using moulds and expanding foam to achieve an authentic F1-inspired look.

After a brilliantly choreographed start featuring The Stig, a rubber duck and a lap time board that certainly saw better days, it was time to race.

Tom Camier set the benchmark in the opening heat before Oli Collis took on the course with one simple instruction: don't brake. His fearless run secured an even faster time and helped earn our place in the final.

With the fastest qualifying time, Fred Jones represented us in the final, navigating the course with confidence to bring home third place. 🥉

Congratulations to everyone involved, both those at the event and those behind the scenes whose design and build work made the kart possible.

Did you spot us at the Krazy Races?

Casting programmes often don’t fail because of capability. They fail because the pieces never quite connect. Digital san...
10/07/2026

Casting programmes often don’t fail because of capability. They fail because the pieces never quite connect.

Digital sand printing. In-house tooling. Advanced metrology. Engineering leadership.

Individually, each plays a role. But the real work is making them operate as a single system, not a sequence of handoffs.

We’ve seen what happens when everything aligns:

- A cast component delivered 36 hours after receiving a model
- Prototype cycles reduced from four weeks to one

These are not typical timelines. But they demonstrate what is possible when the process is built for certainty from the outset.

Let’s discuss your next project: https://gwcast.com/contact/

Turning real data into predictive insights.With over 80 years of experience in the industry, we have been able to collat...
02/07/2026

Turning real data into predictive insights.

With over 80 years of experience in the industry, we have been able to collate years' worth of data from real pours and reverse engineer it directly into our simulation models. By calibrating MAGMA tools using demonstrated material behaviour, we create predictions grounded in what actually happens on the shop floor.

The means we don’t rely on assumptions, we work from models informed by real performance, refined through experience and validated by practice.

With this method in place, we are able to achieve a mapping accuracy of 90-100%, helping you make confident decisions and reduce risks.

Because when simulation reflects reality, you’re better placed to shape it: https://gwcast.com/service/engineering/

At Grainger & Worrall, our five-printer fleet makes us one of the largest digital sand printing facilities in the UK, ar...
17/06/2026

At Grainger & Worrall, our five-printer fleet makes us one of the largest digital sand printing facilities in the UK, arguably the largest installation in Europe for aluminium castings.

With a capacity exceeding five tonnes per day, we can test designs quickly, adapt to changes without delay and keep your projects moving. Get faster turnarounds, more consistent results and the ability to iterate with confidence, without slowing down production.

Ready to discuss your next project? Get in touch today: https://gwcast.com/service/rapid-prototyping/

One thing that doesn’t get talked about enough in prototype casting development: the cost of the iteration gap.Not the c...
10/06/2026

One thing that doesn’t get talked about enough in prototype casting development: the cost of the iteration gap.

Not the cost of a design change itself. The gap between the change being approved and the next physical part landing on the inspection table. In traditional sand casting, that gap is long. You’re waiting on a pattern shop. Sometimes an external one. The tooling has to be modified, re-machined or remade. Until it’s back, the programme is effectively paused, even if nobody says so out loud.

Digital Sand Printing removes that dependency. Instead of modifying hard tooling, you update the CAD and reprint the sand mould directly. The tool is the file. Change the file, change the mould.

What that means in practice: a design revision that would have cost you two to three weeks of programme time now costs you a day or two of print time. The physical iteration cycle compresses to match the pace of the engineering conversation rather than the pace of a supplier’s workshop queue.

It’s not universally understood that DSP isn’t just for complex geometry. Its bigger value in a live development programme is responsiveness. You can run multiple design variants in parallel, cast them in the same pour window and get comparative physical data far earlier in the process than conventional tooling schedules allow.

The programmes that get into trouble aren’t usually the ones with the hardest geometry. They’re the ones where the iteration loop gets stretched because the manufacturing step can’t keep up with the engineering step.

Worth thinking about when you’re scoping your next prototype phase.

From concept to reality is a straightforward phrase. The engineering between those two points rarely is. Complex geometr...
02/06/2026

From concept to reality is a straightforward phrase. The engineering between those two points rarely is.

Complex geometries, tight tolerances, programmes under time pressure. The path from a CAD file to a qualified casting involves a lot of decisions that determine whether you get there cleanly or not.

A defence transmission casting had a 50% reject rate for a decade with an incumbent supplier. The geometry was understood. The development model was the problem. We solved it in nine months with seven iterative cycles and first-attempt qualification.

That kind of outcome isn’t about having better equipment. It’s about how you approach the engineering from the start.

We work with customers from the earliest stages of design, through simulation, development and into production. The earlier we’re involved, the better the result.

If you’re at the concept stage or stuck somewhere between concept and reality, let’s talk.

https://gwcast.com/contact/

Address

Bridgnorth

Opening Hours

Monday 8am - 5:30pm
Tuesday 8am - 5:30pm
Wednesday 8am - 5:30pm
Thursday 8am - 5:30pm
Friday 8am - 5:30pm

Telephone

+441746768250

Website

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