The Eco Roll uses a two-stage compaction method, unlike conventional pan grinder rollers that compact all the product in one step. In the first stage, the product is gently pre-compacted by a recessed section of the working surface. A lower pressure is applied, which optimally prepares the product for the next stage. In the second stage, higher pressure is applied to the front part of the roller, ensuring maximum compaction performance with minimum energy input. This two-phase pressure distribution not only ensures uniform compaction, but also significantly reduces energy consumption - to approximately 40 to 45 kWh per ton for softwood.
Extrapolated to an annual production volume of 50,000 tons, this results in savings of up to 1,250 MWh of electricity per year. This equates to a cost reduction of approximately €250,000 per year at an electricity price of 20 cents per kWh.
Reduced wear, increased production capacity
The Eco Roll saves energy and reduces production costs. The innovative design reduces wear on rollers and dies, resulting in longer component life. Longer maintenance cycles combined with lower energy consumption provide a noticeable reduction in operating costs. The Eco Roll is therefore an environmentally responsible and economically viable solution.
In addition to cost and energy savings, the Eco Roll can increase the production capacity by up to 25 percent. The optimized pressure distribution allows the use of wider dies, ensuring higher throughput with consistent pelleting performance.
Special solution for demanding raw materials like wood
The Eco Roll is specially designed for raw materials that are difficult to pellet - especially fiber-rich products such as wood, straw and grass. The high crude fiber content, the dryness and the lack of natural lubricants such as fats or proteins make this raw material particularly challenging to pellet. This is where the Eco Roll really comes into its own: Its two-stage compaction ensures uniform, reliable and efficient processing even under these difficult conditions.
The Eco Roll is compatible with all AMANDUS KAHL pellet mills and can be easily retrofitted. The Eco Roll is an ideal addition to biomass pellet mills with a die diameter of 780 mm or more, as commonly used in wood pelleting. With the Eco Roll, AMANDUS KAHL offers an innovative solution that perfectly combines efficiency, sustainability and profitability.
