Spectrum Gravity Separators can be used to separate coffee beans of the same size but with difference in specific weight. They can be used effectively to remove partially eaten, immature and broken seeds to ensure maximum quality of the final product. They may be used to separate and standardise coffee, peanuts, corn, rice, wheat, sesame and other food grains.
These Gravity Separators have a rectangular deck so that the product travels a longer distance resulting in cleaner separation of light and heavy particles and the lowest percentage of middlings. The product flows over the vibrating deck in which pressurised air is forced through causing the material to stratify according to its specific weight. The heavier particles travel to the higher level and the lighter particles travel to the lower level of the deck.
In order to obtain efficient separation by specific weight the pressurised air supply needs to be accurately adjusted and this is accomplished by having individually adjustable air fans to control the volume of air distribution at different areas of the vibrating deck. The table inclination, speed of eccentric motion and the feed rate can
be precisely adjusted with ease and minimum of operator training.
Can be used to separate lights and granular from heavy coffee beans.
Easy deck removal for cleaning.
Multi-fan system for accurate control of air.
Precise control of air , feed rate and speed of deck motion.
Easy adjustment of deck inclination in both longitudinal and transverse directions.