Improve profitability with our high throughput, precision Vibrating Air Screen.

Vibrating Air Screen plant

Our Kemco quad-deck air screens give you perfectly screened product every time.
Their unique design combines the accuracy of mesh screens with the high throughput of air classification systems.
We specialise in screening materials that have high fines (<3mm) content.

Washes without water

Washes without water

Uses no water for removing ultrafines, ideal for de-dusting coarse aggregates and manufactured sand for use in concrete and asphalt.

Dust free

Dust free

A fully encapsulated housing operating under negative pressure means the plant gives off no dust, even with the doors open!

Low Noise

High throughput

2x – 10x the processing rate of conventional screens, especially in products with high ultrafines that cause conventional screens to blind over.

Product consistency


Ultrafine levels in finished product are precisely controlled. They are removed with a high degree of accuracy down to 0.3mm.

Kayasand Screening


Options for up to 7 different product fractions simultaneously, ranging from 40mm to <0.075mm.

Use Kayasand's specialist vibrating air screens to improve the quality of your aggregates and manufactured sand to open new revenue streams. Different mesh sizes enable you to extract and process a wider range of materials.

Secondary aggregate screening

Example applications:

  • Improve quality. Install as a final screening step to size coarse aggregate and remove ultra-fine.
  • Ultrafine screening. Remove ultrafine particles like cement or quicklime that cause a conventional screen to blind over.
  • Aggregate de-dusting. Remove excess ultrafine rock-flour from aggregates and manufactured sand to meet concrete or asphalt specifications.
  • Recycled glass screening. Remove paper and other fine materials from recycled glass to meet product specifications.

Vibrating Air Screen Specifications

Model RCAS 900 RCAS 1200 RCAS 1900 RCAS 2500
Power (kw) 40 55 65 95
Capacity (tph) 90 120 190 250
Height (m) 4.5 4.8 5.0 5.4
Width (m) 1.1 1.4 1.8 2.7

Table Notes

  1. Actual performance determination is carried out by screening test.
  2. Required power does not include the ancillaries such as a compressor for the dust collector.
  3. Capacity may vary with feed gradation, separation size, moisture, etc.
  4. The above guide capacities can be expected with dry feed material of bulk density 1.6t/m3

Example Vibrating Air Screen Plant Configuration

Example Plant Configuration

  • Number of air screen outlets depends on customer requirements.
  • Skimmer is optional and only used for separation.
  • Bucket elevator is optional and can be replaced with a longer feed conveyor.
  • Extractor fan also sucks from covered conveyors and bucket elevator to provide complete dust suppression in the plant.