Jeffrey Rader Disc Screen (RDS)
Let Jeffrey Rader recommend a disc screen that’s right for your particular application.
When it comes to removing oversized rejects from unscreened wood chips, hog fuel or bark, the Jeffrey Rader Disc Screen is the undisputed workhorse of the industry. With more units in operation than all other suppliers combined, you can depend on Jeffrey Rader to recommend a model that’s right for your particular operation.
The Jeffrey Rader Disc Screen is never supplied “off the shelf”. Based on the individual application, Rader engineers select the ideal disc profile, interface openings and screen size for maximum screening efficiency. Then, using only first quality materials and components, the screen is manufactured under ISO 9001 specifications.
Wood chip and hog fuel processing are typically a 24 hour a day operation. That’s why you need a screen on which you can depend. The RDS is engineered for rugged, non-stop service with only routine maintenance. When scheduled maintenance is required, all service points and components are easily accessible.
 Efficient resource recovery depends on separating the maximum amount of desireable materials from the raw wastes. To do this, the disc screens are used in many locations in the processing cycle.
The disc screens separates material particles by allowing the smaller fractions to drop through openings of controlled size. Unlike static screens, however, the Jeffrey Rader dic screen continuously moves material across a series of rotating multiple-toothed discs. Small particles are shaken loose, larger matter is moved on.
The discs and the opening between them can be set to screen out glass, grit and ceramic material, aluminum and large fibrous matter. The high efficiencies, compact design and minimum power requirements of the disc screen are ideal for resource recovery.
As material passes over the disc screen, it is churned and tossed by the discs. The smaller fraction is knocked loose rather than remaining trapped in fibrous material. This vigorous jogging action removes the highest possible percentage of the desired or undesired fraction.
The disc screen rotating discs continually clear out and move along oversize material. The interface openings remain clear and constant for accurate separation. There is rarely any need to halt material flow to clear the unit. Because the discs "carry" the large fraction by striking and bouncing it along, throughput is much higher that with other screen systems.
The disc screen can separate radically different material by selecting the proper disc profile and interface spacing. Glass, grit and ceramic; metals; and oversize fiber can be selected separately by using different configurations.Another important disc screen design feature is that discs and spacers are removable and can be changed in the field. By installing different length spacers the action of a disc screenunit can be modified on site.
The disc screen is easily integrated into plant layout because of its low space requirement. And because there are no reciprocating or vibrating components, structural supportts can be simple and lightweight.
Disc Screen units have modest horsepower requirements relative to the amount of material processed. Electric or hydraulic drives may be specified to suit the application. The disc screen has been demonstrated effective on both light and heavy refuse fractions. Our engineering department can provide complete details on the correct size unit, component design and location for your application.
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Compact design for minimum space requirements