Crumbler Process During crumbling pellets are reduced to crumbs. The advantages of the pelleting process are maintained as much as possible. The size of the crumbs is adapted to the need of the animal and the feeding system. Meal intake consumes a lot of energy for an animal, crumbs on the other hand can be quickly and easily consumed. The most important goals of crumbling for the animal (farmer) and the crumble process (animal feed producer) are: • Maintain the advantages of pellets: - Prevent dissociation - Prevent feed losses and selection during feed intake - Destruct and/or inhibit Salmonella and other bacteria - Improvement digestability by starch gelatinization - Reduce development of dust - Simplify transport by means of higher wear resistance and higher pouring weight - Lower conversionfactor - Reduction contamination • Size adapted to intake abilities and preferences of the animal • Control of particle size distribution • Minimum production costs • Continues production • Flexibility with regard to types of pellets and desired crumbs The Van Aarsen crumbler is equipped with a separately driven dosing roller, ensuring a uniform feed to the machine and achieving optimum utilization of its capacity. The fineness of the end product can be varied by adjusting the distance between the crumbler rollers. There is also a by-pass device enabling the flow of pellets to be diverted around the crumbler rollers. This by-pass is available with manual- or aircontrol. The crumbler rollers are made of very durable special steel, thus reducing the operational costs. When worn, these rollers can be re-serrated. Rollers with different serration size are available to suit different pellet diameters and granule sizes. The rollers are easy to exchange and the tooth-belt drive is maintenance-free. As a result, maintenance costs are minimal. Operational safety The crumbler is designed and constructed in conformity with the safety regulations Machinery Directive 89/392/EEC. Datasheet V005 No rights can be claimed, based on the information in this document. Descriptions and illustrations are subject to change, due to continuous product improvement and therefore not

Roller adjustment, hand operated Roller adjustment, motor operated Roller adjustment, hand operated Roller adjustment, motor operated Drive crumbling rollers / 1000 rpm Drive crumbling rollers / 1500 rpm Drive feed roller / 83 rpm By-pass valve ● hand operated ● air operated Roller adjustment ● hand operated ● motor operated Frequency regulator Conical roller Outlet hopper c = choice; o = optional; * Depends strongly on the size and quality of the pellets ** Pellets < 4mm: use a 3.14mm / 200 T conical roller; pellets ≥ 4mm use a 4.49