Testing Pellet Quality
Borregaard LignoTech recommends the New Holmen Pellet Tester, as it provides a more rigorous test and accurately predicts the degradation that pellets experience during transport and handling.
The New Holmen Tester is based on a design by Borregaard LignoTech. It is smaller, faster, and more sporty than previous commercial testers. 100 g of pellets are placed in the chamber, blown about from 30 to 120 seconds by a jet of air, and then weighed, giving a direct read of pellet durability. Fines are removed during the blowing process. Air pressure and run time are adjustable.
The New Holmen Pellet Tester is manufactured and sold by UK-based company Tekpro. More information about the product can be found at their website.
Figure 1: New Holmen Pellet Tester compared to other pellet testers (pellet durability)
Table 1: New Holmen Pellet Tester compared to other pellet testers (pellet durability)
|Feed Type||Tumbling Can||Tumbling Can + Nuts||
|Broiler, 2% fat||89.1||68.2||68.5||64.9|
Seven different types of feed were tested to learn how the various pellet testers compared. The New Holmen Pellet Tester is more severe than the Tumbling Can; the New Holmen Pellet Tester gave a durability of 64.9 in broiler pellets while the Tumbling Can gave 89.1. Adding two ¾-inch hex nuts to the Tumbling Can dropped durability to 68.2. Experience suggests the more severe test better reflects conditions in the industry.