Impact extrusion

We have been technological pioneers of this cold-forming process for decades and are always on the lookout for new, exciting applications.

Advantages of impact extrusion

Efficiency of the manufacturing process

Strength and ductility

Tightness / free from blowholes

Forming tolerance

Thin walls

Low tooling costs

Explanation videos

The best solution

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Industry solutions

Watch John and find out how impact extrusions beats stamping and casting.

Value creation process:

1. Feedstock: Slugs

In impact extrusion, 90% of the slugs “pressed” are rectangular or round; often also perforated slugs are used. However, mold slugs can also be used without restrictions. Most frequently we process alloys of the 1000s (pure aluminum) and 6000s group (AlMgSi1 alloys). After consultation, other aluminum alloys can also be used; among others, we can also process copper and magnesium alloys. At the customer’s request, ultrasonic testing is performed on the feedstock at our suppliers’.

2. Impact extrusion

Using horizontal knee lever mechanical presses with press forces ranging between 150 and 1200 tons, we produce parts with lengths of up to 500 mm and an outer diameters of up to 150 mm – developed and improved upon the early 1900s.

3. Heat treatment

State of the art heat treatment facilities can achieve strength values of T4, T6 and T8 conditions, providing parts with the desired mechanical properties they require.

4. Machining and processing

We use flexible and efficient machines for machining impact-extruded parts, not only for large batches, but also for lesser quantities.

5. Surface treatment

We meet your surface requirements with our long-time partners.

6. Assembly & packaging

We assemble and pack your part according to your requirements either manually or through reliable, cost-effective automation.

7. Quality

Our comprehensive quality management system is completely integrated in the process flow. Our production is certified in compliance with:  ISO 9001, ISO 14001, ISO 45001 und IATF 16949.

Locations and certifications

With our production facilities in Austria (Marktl), Slovakia (Žarnovica), Germany (Rottenburg), USA (Waynesboro, VA) and China (Xinhui) and our high level of on-site availability, a Neuman partner is always close by. We are certified according to the following standards: ISO 9001, ISO 14001, ISO 45001 and IATF 16949.


Work for Neuman Aluminium

If you want to make a real impact join Neuman Aluminium!