From the Source:

Q&A with
a Lab Tech

Frank Renn, Laboratory Supervisor

“We will pick a screen that will meet the customer's requirements while at the same time producing the highest possible product yield.”

1. How long does the average test take?

The typical lab test takes approximately 8 hours from start to finish, including creating the test reports.

2. What is the first step you take in the lab process?

We will verify the feed rate/product specifications and go over machine selections. Final product specifications is one topic we will need to discuss. For instance, we’ll want to know how many overs or fines are permitted to remain in the product after screening. Usually the customer will have a final product specification such as max 0.5% overs allowable or max 1% fines allowable, etc.

3. How do you select what style machine and size unit the customer will need?

The selection is based on the rate we are able to feed a specified unit, the customer’s space limitations and the number of separations needed.

4. How do you select the correct screen size for the customer?

The correct screen size is selected based on the customer’s final product specifications. We will pick a screen that will meet the customer’s requirements while at the same time producing the highest possible product yield. This is done by performing various tests in the lab to compare the performance of a variety of screens.