Material of the roller can be sus304 stainless steel tubes or PVC plastic tube.
Working principle: The stainless steel chain makes the tube moving ahead, and meanwhile the tubes rotates on the rubber track because of friction, so the fruits on the tubes will rotate freely, and the bad quality fruits will be picked up and separated manually.
Can add spray cleaning device at outside of the discharge port.
The capacity and power say to different raw fruits
The material used is