The grinding stock for a pellet machine mainly consists of raw material, fine sand, and used engine oil. The weight ratio is approximately 1:2:1. The moisture content of the raw material should be kept below 20%. The yellow sand should be sieved fine sand, and the engine oil can be used as used engine oil from car repairs. Mix them thoroughly and they are ready for use. The first use of a new ring die requires approximately half an hour of grinding.
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