Oliver Manufacturing

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Durability, reliability, and efficiency in the most advanced processing equipment available. Oliver equipment covers the entire spectrum of material processing.

Gravity Separators

A full line, to cover every need. Gravity Separators, also known as gravity air tables or density separators, use a combination of air for weighing, vibration for fluidization and conveying and tilt (or slope) for separation.

Made for ease of use, longevity and above all, accuracy, Oliver Gravity Separators sort dry, granular, free-flowing material into streams according to particle density. This density separation can effectively separate like-size particles with as little as 0.5% difference in specific density.
Oliver model 240, 160, 80, and 50 informational page

Oliver model 30 Laboratory gravity informational page 


Oliver Destoners serve numerous industries with machines that separate diverse or similar sized particles by weight – dividing heavy streams from lighter ones.
Oliver model 6048, 4848, 3648 & 2448 informational page

Precision Sizers

Oliver’s SIZE RIGHT® Precision Cylinder Sizer separates product by width and thickness down to the most accurate screen tolerances in the industry – between +.000″ and -0.003″. These include some screens that will have 4 sizes within a 64th. (Example: 8/64ths, 8.25/64ths, 8.5/64ths, 8.75/64ths, 9/64ths.) All components on the SIZE RIGHT® are heavy-duty and long lasting, and cylinders are custom-made for all types of precision sorting.

Fluidized Bed Dryers

Oliver Fluidized Bed Dryers prevent product clumping, simplify cleanup and improve finished appearance of seed coatings and treatments while cutting dry time to a fraction.  Drying solutions that reduce clumping & improved flow ability. Our Fluid Bed Dryer is a revolutionary solution to the frustrations many processing facilities have for clumping and bridging of treated seed and edibles. The Fluidized Bed Dryer uses a combination of air in motion through a vibrating, tilted table. Seed flow is converted to a “fluidized” suspension, making gentle, uniform drying possible for coated, treated or washed seeds.

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