Users who have used a color sorter know that color sorter should be used together with an oil-free air compressor. For those who have not used color sorters, professional color sorter engineers will tell customers that it should match with oil-free air compressor before purchasing the equipment for consultation.

When the selected materials enter the color sorter for sorting, the stored air in oil-free air compressor is converted into oil-free clean air for feeding the color sorter. The color sorter produces an output signal to drive the magnetic valve and blows out the heterogeneous particle impurities in the material into the waste chamber. And the good selected materials continues to fall into the finished product hopper. Thus achieves the purpose of material sorting.

The materials of this oil-free air compressor contain no oily substances. And no lubricating oil is added during the operation. So the quality of discharged air is greatly improved, avoiding the contamination of oil compressor on terminal equipment.