Rotex Capabilities

Rotex Lab Testing guarantees optimal separations so that your product quality specifications will be met consistently and efficiently. The multi-step lab test process takes into account the characteristics of the material and the product quality and product yield targets that each customer has for their process.


Customers are encouraged to witness lab testing to see the process in action and learn how Rotex Screener capabilities can benefit their production line along the way.


The laboratory process flow is shown below:

Laboratory Testing Procedures

Bulk Density → defines the volumetric flow of material within the screener

Split Sample → ensures the full spectrum of the material is represented in analysis

Feed Analysis → identifies particle size distribution (PSD is a breakdown of the sample that shows the relative amount of particles present according to size)

Screen Selection → choose the proper screen mesh based on customers’ required separation and product specs

Run Test → set up lab screener with appropriate slope, stroke & speed and test material using the selected screen mesh

Weigh Separations → weigh the separated fractions to determine the percentage of each

Separation Analysis → analyze the separated fractions to identify the PSD of each

Examine Results → review the PSD of fractions to confirm customer specs and product recovery rates were met

Success → generates lab test report and flow diagram to send to the customer

Failure to Meet Specs → runs new test, tweaking parameters such as screen mesh size, mesh cleaning balls and machine size selection