Utilization of biomass for energy and other applications requires consistent and reliable compaction to increase bulk density and provide a consistent an easy to handle input product to subsequent processes such as combustion. This line of pelleting presses has been under development since the energy crisis of the 1970’s and is well suited for today’s renewable raw materials industry needs.
Amandus Kahl produces pelletizing presses with proven success for many types of biomass including wood, straw, dried forage, and agricultural byproducts among many others. The presses use pan grinder rollers to compact the biomass and force it through a flat pelletizing die forming continuous strands of compacted product. The strands are then cut to the desired length using rotating knives. The pan grinder rollers and knives rotate slowly ensuring optimum pellet quality and minimized generation of noise and heat. The grinder roller gap and strand cutter are adjustable for optimized pellet quality for the customer’s particular needs. The presses are designed for maximized plant up-time and include reinforced press chamber, die supports and cutting knives, oversized and permanently lubricated roller bearings, and active gearbox lubrication. The flat die design ensures even distribution of feed material and optimized pressure in a more compact package than traditional ring die type presses. Amandus Kahl has pelletizing presses with capacities from 300 Kg / h to 8,000 Kg / h