Metal Injection Moulding (MIM)

Discover the benefits of metal injection moulding

A complex metal shape? Bring it on. ITB is the Dutch market leader in metal injection moulding. While this technique is similar to plastic injection moulding and offers the same benefits, there are some differences.

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Metal injection moulding machine (MIM)

MIM versus plastic injection moulding

• MIM products are made entirely out of metal or a metal alloy
• With metal injection moulding, higher degrees of accuracy can be realised: it is possible to manufacture products with an accuracy of one one-thousandth of a millimetre, while plastic is limited to one one-hundredth of a millimetre
• Granulate (plastic) has a shrink rate of 0 to 2%, while feedstock (metal) can shrink up to 20%
• MIM and injection moulding offer the same freedom of form
• The MIM process has more follow-up steps and often includes some form of post-processing
• Feedstock is generally more expensive than plastic granulate

The metal injection moulding process

We do all our metal injection moulding at ITB Netherlands in Boxtel. Mixing metal powder made of titanium, stainless steel or iron with plastic beads creates metal granulate. This is then injected into a mould. Next comes the debinding process: after the injection moulding, the plastic is chemically removed from the metal product in an oven at a temperature of 160°C. Then, it’s time for the sintering. An oven with a temperature of 1,400° C brings the molecules in the product closer together again, thereby eliminating the material's brittle structure. The product is given its final shape. This entire process is fully automated. If necessary, we will employ some form of post-processing, depending on your product’s specifications.

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When to choose MIM?

When an extremely high degree of precision is required and when the properties of metal, e.g. rigidity, a high temperature resistance and form options, are important. For example, metal injection moulding is perfectly suitable for the medical sector. Think of e.g. surgical tools, implants and dental components. However, we also produce metal parts for the machine construction sector, including looms, and the automotive industry.

Want to know more?

Are you curious about the options offered by MIM? Do you have questions about our injection moulding techniques? We’re happy to tell you more!

Contact us