The Services we offer

At GW, we specialize in turning design ideas into reality using our expertise in sand casting, rapid prototyping, and engineering. Our team has the skills and equipment to take on a variety of projects, and we pride ourselves on our innovative mindset that allows us to provide customized solutions for each of our clients.

We work across industries including motorsport, defence, ICE and aviation.

Giga Casting


The automotive industry is experiencing a manufacturing revolution driven by sustainability and consumer behaviour. Giga Casting has been developed as a process for producing large, structural castings in single, net shapes; reducing part count. At Grainger and Worrall, we've developed a sand casting methodology to prototype these mega castings.


Turn ideas into Giga-sized innovation

Rapid Prototyping

Rapid prototyping is a technique to create a physical part from a CAD model using various methods such as sand casting and 3D printing. 

At G&W, we'll adapt our services to meet your requirements; whether rapid prototyping for a frozen design spec, to provide proof of concept or create a Make Like Production part.  

Prototype faster with GW



Our team of experts uses industry knowledge and the latest computer-based technologies to provide foundry process analysis, review, and rectification services during the production phase. As industry leaders, we constantly innovate by engaging with other industry experts, universities, and like-minded customers to develop new processes and ensure we're always at the forefront of casting engineering. 


Engineering excellence at GW



Our team has been specializing in designing, manufacturing, and verifying complex precision sand castings for over 70 years. We provide a wide range castings for a variety of clients and industries, utilising our engineering skill and casting experience.

We're always at the forefront of casting engineering, and we're committed to innovation and improvement, allowing us to produce, robust, lightweight and high-quality castings.


Casting innovation at GW


Grainger & Worrall Machining offers an innovative approach to short lead time New Product Introduction (NPI), ensuring precision, quality, and lead time reduction in every project. Our 3,000m2 fully air-conditioned facility features world-leading 3-axis and 5-axis machines, dedicated metrology lab, and expert engineers and programmers to guarantee high standards and accuracy for each machining project.


Precision Machining at GW