Rocklabs Rotating Sample Dividers (RSDs) are designed to split out a representative proportion of a sample with a high degree of dividing accuracy. The design is robust and the machinery easy to operate.
The Rocklabs Benchtop RSD features sealed bearings and 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.
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 | ||
Standard deviation of samples % | ||
Dividing | 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 | |
Shipping Dimensions | Width x Height x Depth | 675 x 640 x 625mm |
Weight | 75kg |