Vacuum Casting, RIM and Polyamide Casting

VARIETY FROM ONE CASTING

Vacuum Casting

3D printing reaches its limits when it comes to special requirements such as high-gloss finishes or components with large surface areas or volumes. Vacuum cast parts are a popular alternative because their production is fast, inexpensive and simple. Vacuum casting allows the production of various surface roughnesses and structures and can be finished in different colours, transparency levels and degrees of hardness. The method is therefore suitable for multi-component castings, surfaces in series quality and the recasting of inserts.

Reaction Injection Moulding (RIM)

This process has to do with the production of plastic castings, typically out of polyurethane, and is also known as low-pressure injection moulding. It is considered a more economical alternative to other processes and is especially attractive for medium quantities, since the production requires little lead time. The material properties of RIM parts fall within those of unfilled plastics and are consistently characterised by good temperature resistance from around -40 °C to more than 100 °C.

Silicone Casting

One of our specialities is casting silicone parts from a silicone mould. The advantages of silicones over rubber and other elastomers are their high chemical resistance and the high temperature range in which they can be used, of up to 200 °C and more. In addition, we can produce silicone parts in hardnesses from around 20° Shore A to approximately 50° Shore A, coloured or in natural colour. The applications are diverse: from use as seals, for fixtures, in prototype equipment for food processing or for potting electronic components.

Polyamide Casting

Close-to-production prototypes and small batches in polyamide casting. If initial prototypes with high strength properties are required, this is a case for polyamide casting. Hardly any other prototype material comes as close to the properties of an injection moulded part. PA casting can also be done with glass fibre for greater strength.

Additionally, we offer PA castings with fire resistance. Even a gas flame at temperatures above 1,000 °C cannot ignite this PA casting. Glowing particles extinguish immediately without any significant smoke development.

Another special case is brightly coloured plastic parts in polyamide castings. For a long time it was believed that PA castings could only be produced in natural colour or black. At HENNgineered, you can get your PA castings dyed even in the colour of your choice.

Possibilities


YOUR BEST CHOICE

Shot Volume

up to 0 kg

Heat deflection temperature

up to 0ºC

Tensile strength

up to 0 MPa

Notched Impact Strength (ISO 179)

up to 0 kJ/m2

Application temperature with silicone

0 ºC–0 ºC

Shot Volume

up to 0 kg

Heat deflection temperature

up to 0ºC

Tensile strength

up to 0 MPa

Notched Impact Strength (ISO 179)

up to 0 kJ/m2

Application temperature with silicone

0 ºC–0 ºC

USE CASE

Technology

IN PERFECT SIZES

VACUUM CASTING

The path to vacuum cast parts is quick, easy and cost-effective. We create a master pattern from your 3D data, build a silicone mould and can then move on to casting your parts. The production of 10–20 parts takes no longer than 10 working days on average.

RIM

A mixing system is used to mix the A and B components of the PUR material and inject them under pressure into the mould. The parts are then ready to cure a few days later. This process makes it possible to produce silicone parts in silicone moulds. The advantage over rubber and elastomers is the high chemical resistance and the high-temperature range in which they can be used, of up to more than 200 °C. The applications are diverse: from use as seals, for fixtures, in prototype equipment for food processing or for potting electronic components.

POLYAMIDE CASTING

Production is simple and fast: We create a master model from your 3D data using stereolithography. The master model is finished and lacquered, then moulded and encapsulated with two-component silicone. After the silicone has cured, the resulting mould is opened and the master model is removed. Now a mould is available that can be used to produce 10-15 PA castings.

DO YOU HAVE ANY QUESTIONS?
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