Rocklabs Benchtop RSD

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.

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The Bench Top RSD provides the same results in a compact unit designed to sit on a work bench. It can be used in conjunction with a Bench Top Ring Mill.

  • Accurate representative split of any proportion (from 2% to 50%)
  • Two representative splits: sample and remainder
  • Sealed bearings

Specifications

Motor power

0.1kW, single phase

 

Maximum input particle size

10mm

 

Width x Height x Depth

600 x 557 x 496mm

 

Weight

85kg

 

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

825 x 730 x 605mm

 

Weight

100kg

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