Plansifter, new sieve stack

by Emily Wilson
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Reinhard Rueter Maschinenbau, Hille-Nordhemmern, Germany, in 1988 introduced the cross-yoke plansifter, a machine light enough for support by most mill ceilings or normal roof trusses. A new drive, sieve stack and cleaning brushes ensure weight savings up to 80%. Sieves can be operated parallel for high throughputs or in series for high separation. Machines have been sold worldwide, including single-box plansifters used as a 100-tph flour loading control sifter and as a grind sifter in wheat, rye and corn mills. The company recently introduced its aluminum sieve stack, available since July 2000. The sieves, manufactured from anodized extruded aluminum sections with plastic inserts, are more resistant to wear and high temperatures — up to 80° Celsius — and larger lateral slots makes it possible to sieve products up to 14mm.