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+91 98967 93832The Drum Mill (Net weight – 460 kg) is a laboratory ball mill designed to grind large sample volumes up to 35 l. It accepts initial feed sizes of up to 20 mm and can achieve grind sizes down to 15 °m by friction and impact.
Hard, brittle or fibrous samples are pulverized in the 150 l drum filled with 80 kg grinding balls. The variable speed of 10 to 50 rpm, different grinding ball sizes and the possibility of long-term grindings of up to 100 h ensure perfect adaption to sample properties as well as reproducible results.
A Drum Mill (Net weight – 460 kg) foodGrade model featuring a stainless steel 316L drum and hopper is available for applications where the sample must not be contaminated in any way.
FUNCTIONAL PRINCIPLE
In a drum mill the sample (usually pre-crushed material) is placed inside the drum with the grinding balls and subjected to external forces.
The Ball Mill is used for fine grinding of solid matter by impact and friction in dry condition. The drum, which contains the sample and grinding balls, rotates around a horizontal axis. Whereas particles break more easily when larger grinding ball diameters are used, smaller diameters lead to a substantially higher final fineness.
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