Heat treatment is an essential process in the production of tool steel. It involves the heating and cooling of the steel in a controlled environment to achieve specific properties such as hardness, toughness, wear resistance, and dimensional stability.

Granulator knives are essential components of granulators used in the plastics industry for size reduction and recycling of plastic materials. These knives are typically made from tool steel, a high-quality and durable material that is known for its ability to maintain a sharp cutting edge.

We pioneered cryogenic heat treatment in Slovakia already since year 2007. 

PROCESSThe process typically involves slowly cooling a mass of parts to – 196 ◦C , holding them at this temperature for 30 h or more, then slowly heating them back to ambient temperature.