The SAGDesign Test or
Standard Autogenous Grinding Design Test is used throughout the world by
leading Mining Organizations to understand ore comminution hardness.
It is used to determine the pinion energy in both the SAGMill and the
Ball Mill. It can also be used in conjunction with other tests
such as the JK Drop Weight test and / or the SPI test, the Bond Rod Mill
Work Index test, the Bond Crushing Work Index Test and the Unconfined
Compressive Strength test. SAG unit power needed to grind from F80
152mm to T80 1.7mm, and the Bond Ball Mill Work Index (Wi) on SAG ground
material are measured in the SAGDesign Test. Unit pinion
energy required for SAG and Ball milling will be calculated to the final
specified D80 for the final product from each Mill. Our reports
include recommendations for the best grinding mill power split, T80, and
other pertinent information arising from the study, particularly with
regard to SAG Mill grate and media size. The SAGDesign Test name
is a trade mark of Starkey & Associates. The test procedure is
patented worldwide by Outotec who co-sponsored the development work.


