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Spectrum Industries

Based in Mangalore, India, Spectrum Industries is the leading manufacturer of a wide range of high quality grain processing machines, rice processing machines, cleaning, grading & sorting machinery for the food industry. Spectrum's commitment to customer care is total & its mission is to provide high quality products to its customers.
Spectrum Industries
electronic color sorter, grain sorter machinery, grain cleaning machines, grain sorting machines, color sorter manufacturers

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We are looking for dealers and marketing agents worldwide to expand our presence in more regions.

De Stoner
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De Stoner

"Spectrum De-stoners" or grain separators are a highly functional destoner machinery and have found several applications such as separating heavier materials like stones, glass, metal etc. from food grains and other dry granular material.

The principle that lies behind its functioning is the stratification of the product into heavier and lighter fractions by introducing air through the bed of material. This is possible if there is a means of pressure fans located in the body of the machine, below the vibrating deck.

The vibrating deck pushes the heavier material which is in contact with the deck upwards towards the stone discharge spout. The lighter material flows down the inclined, vibrating deck and exits through the clean product spout.

It is possible to individually adjust the inclination of the vibrating deck, speed of eccentric motion, feed rate and the air flow in order to achieve the optimum degree of separation. We have a wide variety of deck screens available with us to suit specific applications. All adjustments are easy and require minimum operator training.


  • It is possible to connect to a central aspiration system.
  • Clean product and stone discharge spouts are provided with it.
  • Product viewing is facilitated through a window.
  • Has an adjustable deck inclination and vibrating speed.
  • Air flow and feed rate can be easily controlled.

Description DS-120H DS-180H
Power required in Hp 6.25 8.5
Capacity per hr. in kgs. 4000 8000
Net Weight in kgs. 475 750
Gross Weight in kgs. 700 1000
Shipping Volume in Cu.mtrs. 4 6 4 6

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Capacity specified is for Dried Cherry Coffee beans/Wheat
Specifications are subject to change without prior notice.


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