Along with grinding and conditioning, the actual pelleting procedure has an influence on pellet quality. Meal should enter the pellet mill correctly conditioned as this will aid ‘shaping’ the meal into pellets rather than cooking the meal via friction heat at the die. Excess friction heat in the die can produce a hard brittle pellet rather than a durable one; also conditioning the meal in the conditioning vessel is more cost-efficient than in the pelletizer.
6 Consideration should be given to
1. Die wear
Cheaper dies are usually a false economy as they are likely to be lower quality, resulting in uneven wear and therefore poor pellet quality and throughput.
2. Number of Die holes
The number of die holes will affect the throughput and rate of wear of the die.
3. Die hole dimension
Die hole dimension will also affect pellet quality. A longer die hole length and smaller diameter will increase the compression of the meal in the die, however, higher compression levels may produce hard and brittle pellets, but not always durable pellets.
4. Die speed
Faster die speed will increase output, but reduce pellet quality.
5. To be pelleted meal
Meal must be fed evenly across the full face of the die, otherwise there may be uneven die and roller wear, which results in poorly-formed pellets reducing pellet quality.
6. Die upkeep
A well maintained die, which is correctly specified, will help maintain pellet quality.
In conclusion, we Amisy specialize in the export of pellet mill. With 12 years’s experience in the field of feed pellet mill, we can give you professional technical guidance and sincere after service.
