Seed, grain, food, and material processing equipment

A full line to cover every need.

Oliver Gravity Separators use air, vibration and deck tilt to separate dry, granular, free-flowing materials by particle density. Built for accuracy, longevity and ease of use, they can separate like-size particles with specific density differences as small as 0.5%.

Legendary quality with advanced separation design.

Oliver Destoners separate similar-sized particles by weight, dividing heavier materials from lighter product streams. Built for use across multiple industries, they deliver reliable density separation for cleaner, more consistent processing.

Drying solutions that reduce clumping and improve flowability.

Oliver dryers help prevent clumping and bridging, improve finished appearance and reduce dry time for coated, treated or washed seed. A vibrating, tilted table and controlled airflow create gentle, uniform drying for cleaner handling and more consistent product flow.

Efficient, safe and precise sorting.

Oliver’s SIZE RIGHT® Precision Cylinder Sizer separates product by width and thickness with industry-leading screen tolerances down to +.000″ / -0.003″. Heavy-duty components and custom-made cylinders support long-lasting performance across a wide range of precision sorting applications.

Precise Control for Cleaner Separation Results.

Oliver Flag Gates & Dividers help direct separated material streams with accuracy, giving operators better control over product flow, discharge points, and final separation quality. Built for smooth adjustment and reliable performance, they help fine-tune processing systems for cleaner fractions, reduced cross-contamination, and more consistent output.

Precise Length Separation for Cleaner, More Uniform Product.

Oliver Indented Cylinders separate seeds, grains, and other free-flowing materials by length, removing broken kernels, weed seeds, short pieces, and other unwanted product. Built for accuracy, durability, and easy operation, they help processors improve product consistency and meet demanding quality standards.

Gentle Surface Treatment for Cleaner, Better-Prepared Seed.

Oliver Brushing Machines remove seed hairs, husks, dust, and other surface material while also splitting double seeds, polishing, and scarifying. Designed for controlled, consistent treatment, they help processors improve seed cleanliness, surface condition, and preparation for downstream processing.

Precise Seed Treatment for Consistent, Repeatable Coverage.

Oliver Seed Treaters provide accurate application of treatments for seed dressing, coating, pelleting, and incrustation. Available for commercial, research, and laboratory applications, they help processors control treatment rates, achieve uniform coverage, and maintain consistent results across every batch.

Efficient Cleaning for Higher-Quality Seed and Grain.

Oliver Cleaning Equipment removes oversized material, fines, debris, and other unwanted product from seed, grain, food, and specialty materials. Designed for accurate, efficient separation, these systems help processors improve product purity, consistency, and preparation for downstream processing.

Precision Grading for Consistent, Uniform Product Sizes.

Oliver Graders separate seed, grain, and other free-flowing materials into precise size fractions using carefully engineered screens and controlled product flow. Built for high-accuracy sizing, they help processors improve product uniformity, remove off-size material, and meet demanding quality specifications.