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Rocklabs Benchtop RSD

The Rocklabs Benchtop RSD (Rotating Sample Divider) is designed to be placed on a work bench and can be used in conjunction with Benchtop Ring Mill.

Big inputs and accurate outputs for seriously reliable results.

The Rocklabs Benchtop RSD (Rotating Sample Divider) is designed to be placed on a work bench and can be used in conjunction with Benchtop Ring Mill.
Featuring sealed bearings the Benchtop RSD takes a representative split of any proportion from 2-50%. Get a representative split of sample and remainder.
Taking a representative split is not as simple as many people believe. Rolling on a mat, multiple grabs or riffle splitting do not produce accurate results. A classic study conducted at Bradford University demonstrated that a rotating sample divider provided the best results.

Benefits:

Robust design
Easy operation
Sealed bearings
Two representative splits
Compact to sit on work bench

Specifications
Motor power	0.1kW, single phase
Maximum input particle size	10mm
Width x Height x Depth	600 x 450.2 x 420mm
Weight	58.82kg
Hopper capacity	5kg
Dust extraction	n/a
Options	n/a
Warranty	ROCKLABS Bench Top RSD is sold with a 2000-operating-hours or one year warranty (whichever comes first), covering all parts (excluding wear parts) and labour if used under laboratory conditions.
Comments on taking a representative split	Taking a representative split from a large sample is not as simple as many people believe. Rolling on a mat, multiple grabs or riffle splitting do not produce accurate results. A classic study* conducted at Bradford University demonstrated that a rotating sample divider provided the best results. * Critical evaluation of powder sample procedures. Allen T and Khan A. A, The chemical Engineer, May 1979, pp108 - 112
Dividing	Standard deviation of samples %
Cone and quartering	6.810
Scoop sampling	5.140
Riffle splitting	1.010
Table sampling	2.090
Rotating splitting	0.125
Random Variation	0.076

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