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 Standalone RSD features sealed bearings and has two splitting options available. The first is a single split & remainder. The second option is a duplicate split & remainder, with a bypass bin available for option two.
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
– Dust extraction port
– Two splitting options
– Sealed bearings
Specifications | ||
Motor power | 0.18kW, 3 phase | |
Maximum input particle size | 10mm | |
Width x Height x Depth | 1000 x 960 x 800mm | |
Weight | 135kg | |
Hopper capacity | 25kg | |
Dust extraction | 1 extraction port available | |
Options | Options Sample bins: Option 1 – Single split + Remainder Option 2 – Duplicate Split + Remainder Bypass bin available for Option 2 | |
Warranty | ROCKLABS Standalone 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 | 1570 x 1160 x 920mm |
Weight | 250kg |