• UK & China Manufacturing Options

    Prototyping and production in the UK & with our China supply partners

    UK & China Manufacturing Options
  • Over 40 years of casting experience

    Internationally recognised quality standards: ISO 9001 and TS16949

    Over 40 years of casting experience
  • Quality from the start

    Plan quality into the part from the design onwards

    Quality from the start

Our Services.

Specialising in investment casting with UK manufacturing facilities, we also provide fully risk managed and quality assured low cost China supply of higher volume investment castings, die castings, metal injection moulding and forged parts including additional processes of machining, heat treatment, assembly and various surface finishes.

Our Services

High quality Investment Cast parts manufactured in a shorter lead time

  • Design Flexibility
  • Reduced lead time
  • Starting from 1 off
  • Same wide range of materials

Our modern UK foundry has been running for over 40 years encompassing the latest manufacturing techniques.

  • Small to medium volume investment casting
  • Technically demanding & specialist work
  • Short lead times
  • Wide range of alloys

We advise on the best production process for each part to match your requirements & optimise the benefits

  • Investment casting (premium & commercial grade)
  • Die casting (pressure & gravity)
  • Metal injection moulding (MIM)
  • Forging

Dean Group offer an option for higher volume requirements via our supply partners in China:

  • Quality assured by Dean Group
  • Fully engineered by our designers
  • Risk managed supply
  • Supplied with UK certification

Why us?

With more than 40 years of manufacturing experience, Dean Group offer a fully risk managed supply partnership that will cover all your demands. From design concept through to casting simulation and 3D CAD design, we provide the engineered solution that suits you with flexible supply options including UK stock holding facilities.

About Us

Investment Casting

At Dean Group, we have been providing specialised investment casting services since 1972. We pride ourselves on being able to tackle technically challenging projects and to supply you with the parts you need, in whichever industry you may work.

Our manufacturing facilities in Manchester are equipped to handle your investment casting needs, with a team of experts working to strict standards to give you a quality-assured end product. We support this with a well-established, low cost sourcing operation through supply partners in China, and UK stock holding facilities to overcome the extended lead times from overseas supply.

What Is Investment Casting?

Investment casting, also known as lost wax casting, is a traditional process which has been used for many centuries to produce detailed, complex metal parts. Compared to other manufacturing methods, it is a cost-effective way of producing intricate products, providing significant design flexibility, with excellent dimensional accuracy and surface finish. It can be used with a wide variety of materials, although steel and aluminium alloys are the most common options.

The process uses a detailed wax pattern, produced from a master tool, which is then coated with a ceramic layer to create a solid shell. The wax pattern is melted out, and the molten metal introduced into the shell; once set, the shell is removed and the part can be finished and quality-tested. Our expertise and quality systems ensure an outstanding level of accuracy at every stage, producing quality-assured pieces which meet all your requirements for strength, integrity and composition.

We can also use 3D printing techniques to produce the initial wax pattern, allowing for rapid prototyping for fit and function testing and process validation before moving on to full scale production.

What are the advantages of Investment Casting?

Investment casting has several advantages over other methods such as sand casting and lost foam casting. Investment casting is ideally suited to smaller, more intricate designs and provides the precision necessary to incorporate logos, product IDs and numbers onto the surface.

Unlike sand casting, which requires moulds to be pulled apart to remove the pattern, investment casting leaves no parting line, resulting in a far smoother surface. The rougher sand moulds can leave a rough finish on a cast part, which requires additional time and effort to smooth down. Investment casting generally does not need any secondary processing. Investment casting uses hard ceramic, creating finished parts with lower dimensional tolerances than sand casting.

What are the Alternatives to Investment Casting?

Sand casting can be more suitable for larger, heavier components, or when the design needs to be changed frequently. The complexity and precision of investment casting can result in higher tooling costs than sand casting. Other methods such as die casting and permanent moulds can also be preferable when producing larger quantities. Metal injection moulding also has advantages over investment casting when producing very small components while retaining smooth surfaces. Like investment casting, both die casting and metal injection moulding have very low dimensional tolerances.

Determining the method best for you will depend on several factors, including the size, shape and intricacy of the design, as well as the quantity required and the margin of error allowed for in dimensions.

Other Services

In addition to our investment casting processes, Dean Group are able to offer a selection of other services, including die casting, metal injection moulding, and forging. This allows us to provide the most appropriate process for your project’s needs.

We can also assist with the design process, taking your concept from initial concept to generate 3D CAD, validating the design with casting simulation software and then through prototype and sampling, to approved production. Alternatively, for existing parts, we can import existing CAD data to improve and manufacture your part.

Contact Dean Group for Your Quote

To find out more about our investment casting process, or to get a quote for your project, please get in touch with us on 0161 775 1633 or submit your enquiry online.

Group news

View All News
  • We all know how the railway is making our lives easier. If you live in the city is probably the best and more comfortable option to arrive…

  • Robotics might have been a fantasy in the past century, but now they’re a part of everyday life, like that robot vacuum cleaner that…

  • During manufacturing, some materials might need to be involved in procedures that alter their grain structure. Heat treatments are a way…