RDD Product Brochure.
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The Rotary Disc Divider (RDD):
Find more of Mark & Wedell JAWO Sampling’s innovative sampling solutions here:
The Rotary Disc Divider (RDD) is designed for combined dosing and representative division of almost all types of bulk material e.g. minerals, powders, coal, cement, gravel and wood pellets.
The RDD is an improved version of the Turnstile Divider enabling a better and more continuous dosing and division of material from big bags or material arriving in batches/non-continuous flow. With its built in dosing function material is evenly distributed before division.
The Rotary Disc Divider Single (RDD-S) has one sample outlet in the bottom section.
The Rotary Disc Divider Multiple (RDD-M) have up to four sample outlets in the bottom section.
The RDD consists of a top section housing with an upper disc and two scrapers, a center section with a lower disc and a scraper, a drive unit, a rotor which is connected to the scrapers, a bottom section with an adjustable sample outlet(s) and a reject outlet.
There are inspection hatches in both the upper and the center section.
The material is fed vertically to the RDD through the top section. In the top of the RDD, an upper disc is mounted, and the material is scraped off and directed towards an annular opening. This allows the right amount of material to fall to the lower disc, where the material is scraped down to the bottom section.
The division ratio may be adjusted between 1:9 and 1:56 dependent of RDD model and particle size. In the bottom section, the divided material is led through a manually adjustable outlet and the remaining material is led into the reject outlet.
Material type: Bulk materials.
Drive unit: Gear motor.
Sensors: Induction sensor.
Indicative Rotational speed: 20 rev/min.
Indicative Dimensions (LxWxH): 740x856x875 mm.
Indicative weight: 152 kg.
Housing material: Stainless Steel AISI 304/316 and/or painted galvanized mild steel.
Feed size/ particle size (input): Up to 30 mm.
Division ratio: Between 1:9 and 1:56.
Sample outlet opening: Adjustable between 0-160 mm through stepless adjustment.
Regarding surface treatment, the RDD can be made with all necessary surfaces to ensure that all material leaves the unit. Additionally, the RDD can be made to withstand abrasive materials as well as other material requirements.