FREE TOOLS:

Mill Critical Speed Calculation	Estimates the critical speed of a grinding mill of a given diameter given the mill inside diameter and liner thickness. If given a measured mill rotation (rpm) then the mill's fraction of the critical speed is given.
.	.
Size Analysis graph	Calculate a new size analysis for testwork results. Accepts cumulative % passing, cumulative % retained or the retained weights of a sieve series analysis. Results may be graphed in either a Rosin-Rammler, Schuhmann plot or Linear-Y axis and particles sizes may be expressed either in microns or mesh/inches.
.	.
Internet Slide Rule	A working web-based version of history's most used advanced calculation device. Available with 1 to 4 cycles and a special Metric to Imperial conversion scale.
.	.
Flowsheet Icons	Cut and paste these metallurgical flowsheet icons into your spreadsheets or word processor documents to make professional presentations!
Pipe Launder Design	Determines the flow through a pipe launder of a specified geometry.
.	.
Mill Liner Effective Height Calculation Spreadsheet	Determines the effective mill inside diameter of a given set of "top hat" lifters for use in mill volume and critical speed calculations.
.	.
Mill Filling Calculation	Estimates the charge volume of a grinding mill based on the number of exposed lifters. By counting the number of lifters showing (during a mill shutdown) and comparing to the total number of lifters (including those buried in the charge) the fraction of the mill under the charge is determined.
.	.