Quantachrome UK Ltd - © 2008
optimising particle performance
The Rotary Micro Riffler easily and automatically divides larger samples into eight smaller representative samples for analysis.
By repetitive division of the collected smaller representative samples, the desired final sample size may be obtained.
The Rotary Micro Riffler has two basic components: A circular vibrating bowl which is amplitude-variable and controls the delivery rate of the initial sample powder. A sample collector which is a rotating disc holding eight test tubes. Size of the test tubes may be varied to accommodate the initial sample size.

The Sieving Riffler is designed to handle larger quantities of powder than the Rotary Micro Riffler.
By attaching a sieve to the top of the hopper, samples can be obtained which are representative of the initial sample while excluding all particles larger than the selected sieve size.
The Sieving Riffler has three basic components: A cylindrical vibrating hopper which is amplitude-variable and controls the delivery rate of the powder. A rotating sample collector which is divided into eight stainless steel compartments. And a replaceable sieve used to exclude particles above a selected size.