LST 60°
INCLINED CONIC HOLE
HAMMER MILL SCREENS
- Better ground product pulverization
- Increased mill productivity
- Maintenance intervals reduction
- Greater screen durability
- Less holes obstruction
High Productivity Screens
The LST 60° CONIC HOLES screen surface is similar to that of a “cheese grater”. This unique type of raised and inclined conic hole creates a cutting rasp that reduces the milled product in smaller particle sizes. Therefore, our screens provide hammer mills with a more aggressive pulverization action, compared with that of a conventional circular hole screen type. We carry out periodic comparative tests that record an average decrease in grain size of 18% and an increase in output of 70%. The pronounced roughness of the holes ridges also minimize the tendency to clogging and, consequently, the maintenance stops. Thanks to the greater milling efficiency, we also obtain a significant drop in the mill’s energy consumption. Typical applications for our 60° inclined holes include pet-food, wood and and pharmaceutical tablets. Our technicians support customers throughout the development and assembly phase of the LST screens on the mills.


Custom made screens
We design and produce custom hammer mill screens. Our staff follows the development of the screens right from the start, in order to identify the optimal hole diameter with the customer. In this way, we obtain the best ratio between production output and quality of the ground product.

Hole Diameter inch | Sheet Thickness inch | Perforated Area % |
---|---|---|
0,020 | 0,039 | 10 |
0,024 | 0,039 | 12 |
0,028 | 0,039 | 12 |
0,031 | 0,039 | 10 |
0,035 | 0,039 | 13 |
0,039 | 0,039 | 16 |
0,047 | 0,039 | 18 |
0,059 | 0,079 | 12 |
0,079 | 0,079 | 16 |
0,098 | 0,079 | 20 |
0,118 | 0,079 | 27 |