The life of a die depends on many factors:
    - the composition of the raw material (formulation)
    - the characteristics of the raw materials used in the feed
    - the fat content
    - the particle size of the mash
    - moisture content before pelleting
    - the thermal conditioning of the mash
    - the pellet mill control automatics / manual
    - others

Composition: compositions rich in fibre as those in rabbit feed are harder to pellet and therefore the life of the dies is much shorter: for instance, if the life of a die is 1 when used to make rabbit feed, it is 4 when used for cattle feed and 5 when used on poultry feed.

Characteristics of the raw materials: raw materials containing silica / sand wears dies more rapidly

Fat content: formulae containing 1.5-2% fat run smoother and are less abrasive, the fat acts as a lubricant.

Particle size of the mash: a mash with a large particle size is more abrasive

Moisture content and thermal conditioning of the mash: a poorly conditioned mash is drier and harder to pellet

Press control: the operator should regularly check the state of wear on the deflectors and scrapers and also the roll adjustment : to avoid uneven wear on the die and consequently inefficient pelleting. The state of wear on the conditioner paddles : to ensure efficient pre-conditioning. Steam traps and filters : to ensure that no condensate is being passed into the conditioner

Others