Plastic injection mold with optimal conformal cooling system

Conformal cooling systems in plastic injection molds lead to a higher quality of the plastic product in a shorter cycle time. This results in a higher quality product at lower cost.

Showcase (real application example)

PLASTON AG, headquartered in Widnau SG, is an innovative and worldwide operating injection molding producer. The company offers amongst other products high-quality plastic packaging solutions. These 4 million cases per year provide protection whilst strenghening their brand, for example for drilling machines.

The aim of this project was to replace the current plastic injection mold for a suitcase lock with an additively produced mold. Because only in this way, the water pipes can consist of intricate, parallel channels, which run close to the surface, and also don't have any eddy water or recirculation areas.

The biggest challenge for BSF Bünter AG consisted in the service of design and simulation. The cooling channels had to effect a uniform and fast cooling, at the same time, they had to comply with all the manufacturing constraints. The first design was optimized by simulation and finally produced by LaserCusing.

Thanks to this conformal cooling system, the cost dominant cycle time could be decreased tremendously and the plastic part got cooled down much more uniformly. The effect was an injection molding part of higher quality and lower costs at the same time.

Service groups

Engineering, product development, data generation
    Engineering of tools with conformal cooling


Mechanical engineering and automation technology



Used technologies

Laser Melting

Used materials

Metal / Warmarbeitsstahl / hot work steel / CL 50WS

Provider who helped realising this showcase

BSF Bünter AG

Grenzenlose Möglichkeiten dank Additiver Fertigung von Metall in Kombination mit mechanischer Bearbeitung!

Your contact person at BSF Bünter AG

Get in contact with:

Fabian Graber
Management board
Field of competence: Engineering / Additive Manufacturing

Image of   Fabian Graber

Share this page