• Manufactured in the UK

    Prototyping and production in the UK

    Manufactured in the UK
  • 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
  • The Dean Group Journey

    The Dean Group Journey

Our Services.

Specialising in high quality 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

Our manufacturing and despatches continue to run normally with fully implemented social distancing measures. Most of our office-based employees are still working from home but essential roles are now operating from the head office. Send your enquiries to sales@deangroup-int.co.uk. For any General & New Enquires, please dial 136. For current or ongoing work, please choose from the following:

  • For Updates on current deliveries, please contact your sales engineer or usual contact. If you do not have their mobile number please dial 136 to obtain it.
  • For Accounts, please dial 103
  • If you require any further assistance, please email our sales@ email address: sales@deangroup-int.co.uk
  • Thank you for your patience and understanding in this difficult time.
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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
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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
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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
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Why us?

With 48 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

Dean Group provide a specialised investment casting service to help your business mass-produce complex, detailed metal components. We are proud members of the Cast Metals Federation, as well as being accredited by the BSI with the ISO 9001:2015 accreditation, we have the expertise and experience to cast a range of ferrous, non-ferrous and exotic metals to fit your exacting design specifications.

We support our high-quality work with a well-established, fully managed low-cost sourcing operation through supply partners in China, and UK stock holding facilities to overcome the extended lead times from overseas supply, enhancing our manufacturing capabilities.

Our Investment Casting Capabilities

We offer a variety of investment casting techniques from our UK based foundry in Manchester, each of which is designed to meet your specific requirements – and always to the high standards of your industry. Our investment casting manufacturing capabilities include:

  • The aluminium investment casting (ELITE) process allows for a range of part sizes and weights to be cast with excellent mechanical properties. It also produces parts with enhanced microstructure that are gas tight and there is also no need for ‘hipping’
  • Our premium grade investment casting is suitable for several applications, including the manufacturing of complicated shapes that can’t be produced with other methods. This method can cast individual parts up to 30kgs with 1000 x 620 x 380 (mm) dimensions. It is highly accurate and consistent; perfect for both low and high-volume production.
  • We also offer a commercial grade investment casting service, which offers design flexibility and good cast integrity. This process is ideal for larger and less intricate designs with capabilities to cast parts up to 100kgs. It is also best suited for medium to large volume runs with virtually no tool wear and overall reduced production costs.

At Dean Group, we have been providing specialised metalworking services, including lost wax casting since 1972. We pride ourselves on being able to tackle technically challenging projects and to supply you with the parts you need. We only use the highest quality materials and we inspect every product we manufacture.

For more information about our processes or services please don’t hesitate to get in touch. We are happy to discuss your requirements, designs, our capabilities, help advise on the best manufacturing process for your needs or just tell you more about our metal casting foundry.

What Is Investment Casting?

Investment casting, also known as lost wax casting, is a traditional process, which has been used for centuries to produce detailed, intricate metal parts and components. 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. Our foundry can cast with a wide variety of materials, although stainless steel, carbon steel and alloys for aluminium casting are the most common options.

The lost wax casting process uses a detailed wax pattern, produced from a master tool, which is then coated with a layer of refractory ceramic slurry to create a solid shell. The wax pattern is melted out (dewaxed), and the molten metal invested into the shell; once set, the shell is removed and the part can be divested for finishing operations and quality control. Our expertise and precision lost wax casting 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 broken apart to divest the pattern, the investment casting process leaves only a minor parting line that is easily removed, resulting in a far smoother surface. Investment casting generally does not need much in the way of secondary processing (polishing, trimming etc.). Investment casting uses hard refractory ceramic, creating finished parts with much tighter tolerances than sand casting.

What are the Alternatives to Investment Casting?

The alternatives to lost wax casting are driven by a number of factors including size, weight, accuracy requirements and volume; often the boundaries are not clearly defined and other considerations may affect the choice of process such as time to market or capital outlay for tooling.

Investment casting is however one of the most flexible processes, offering competitive production costs against relatively low tooling outlay, in the full range of materials and with low, medium and high volume production capabilities. The nature of the tooling construction and the manufacturing process also means that there is a high level of design flexibility and dimensional accuracy resulting in lower post cast process costs.

Other Services

In addition to our investment casting, Dean Group are able to offer a selection of other services, including die casting, pressure die castingmetal injection moulding, and forging. This allows us to provide the most appropriate metalworking 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 Investment Casting Quote

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

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