Oliver 51 Air Table

This Oliver 51 Gravity Separator is a versatile powerhouse. While this specific unit was recently utilized for hemp processing, the Model 51 is a “gold standard” machine capable of servicing a vast array of high-growth recycling and industrial sectors.

Its ability to separate materials with as little as a 0.5% difference in specific density makes it the critical “last mile” of any high-purity reclamation line.

Versatility Across Key Industries

The Oliver 51 is designed to handle virtually any dry, granular material where weight differentiation is required. Here is how it serves some of today’s most demanding industries:

1. Crumb Rubber Recycling

In the tire recycling industry, an air table is essential for purifying rubber granules.

The Task: After shredding, the Oliver 51 effectively separates heavy rubber from lighter “fluff,” fiber, and nylon cord.

The Result: High-purity rubber for use in athletic tracks, rubberized asphalt, and molded products.

2. Solar Panel Reclamation

As solar panels reach their end-of-life, reclaiming high-value materials is a top priority.

The Task: After the initial grind, the air table separates heavier silicon and fine metal particles from the lighter glass and plastic laminate fractions.

The Result: Clean silicon and precious metal streams that can be sent back into the manufacturing loop.

3. E-Waste & Metal Recovery

Electronic waste contains a complex mix of plastics and valuable metals (Copper, Aluminum, Gold).

The Task: The Oliver 51 acts as the final checkpoint, separating heavy copper and aluminum “meatballs” or wire chops from lighter plastic casings and circuit board resin.

The Result: A clean metal concentrate that commands a premium price at refineries.

4. Plastic & Polymer Grading

Not all plastics are created equal. In the circular economy, purity is everything.

The Task: Sorting “heavies” from “lights” (e.g., HDPE from PET) or removing wood, paper, and label contamination from plastic flakes.

The Result: Contaminant-free plastic resin ready for pelletizing.

5. Agricultural & Specialty Crops (Hemp, Seeds, Grains)

As demonstrated by its recent history, this unit excels in the agricultural sector.

The Task: Removing light, infertile seeds, sticks, and pods from high-value crops like hemp, coffee, or specialty nuts.

The Result: Consistent, high-germination seed lots and premium-grade food products.

Why Buy This Specific Unit?

“Bells & Whistles”: This unit is fully appointed with advanced controls (such as VFDs and precision air zone adjustments) that allow you to “dial in” the perfect separation for any of the materials listed above.

Like-New Durability: Built with Oliver’s signature heavy-duty engineering, this machine is designed for 24/7 industrial environments.

Immediate ROI: Avoid the months-long lead times of a new factory order and get your reclamation line running today.