Pellet Mill Dies Made by Stainless Steel Alloy, High Chrome Alloy

Material of pellet mill dies is an important indicator for pellet mill. Stainless steel alloy and high chrome alloy are two common types of metal for pellet mill die.

 

Stainless Steel Alloy: These dies have good corrosion and wear resistance properties. Stainless steel dies are also used for many different types of materials. Due to their increased corrosion resistance over carbon steel dies they have highly polished die holes which produce a higher productivity. So the reduced resistance through the die does not compromise pellet quality, the die depth tends to be deeper than carbon steel dies. The key disadvantage of pellet mill dies made by stainless steel is the increased cost.

High Chrome Alloy: These dies provide the best corrosion resistance of all the dies for pellet mills. The corrosion resistance means highly polished holes are possible, even more so than stainless steel dies. This means pellet production start up is much easier and very high productivities can be achieved. Again though this lack of resistance for some materials passing through the die means a deeper die must be used. This again means a more expensive pellet mill die, due to the high chromium content and required depth.