Multotec

Parameter Presets

Pre-Configured Mill Setups

Standard SAG Mill

Cataracting8m
Primary grinding - copper/gold

Typical semi-autogenous operation for hard rock. Ore acts as media with supplemental steel balls. Cataracting regime at 75% critical speed.

Speed
75%
Media
25%
Ore
15%
Charge
40%

Primary Ball Mill

Cataracting5m
Secondary grinding - iron ore

Steel-ball-dominated charge at high fill. High impact energy for breaking down SAG mill product.

Speed
78%
Media
35%
Ore
12%
Charge
47%

Secondary Ball Mill

Cataracting4m
Fine grinding - platinum

Graduated ball charge for fine particle liberation below 75µm. Higher speed with smaller media for maximum surface area contact.

Speed
80%
Media
30%
Ore
20%
Charge
50%

Primary Rod Mill

Cascading3.5m
Coarse grinding - coal

Steel rods in cascading regime. Gentle grinding for soft materials. Low impact energy prevents over-fines generation.

Speed
55%
Media
30%
Ore
10%
Charge
40%

Regrind Mill

Centrifuging3m
Ultra-fine - gold leach

Fine media in graduated distribution for refractory gold liberation ahead of cyanidation.

Speed
82%
Media
28%
Ore
22%
Charge
50%

Autogenous (AG) Mill

Cataracting9m
Primary - competent ore

Ore grinds itself - minimal steel balls. Large diameter, low media fill. Requires hard, competent ore that can self-break.

Speed
72%
Media
5%
Ore
25%
Charge
30%

High-Impact Ball Mill

Centrifuging4.5m
Cement / clinker grinding

Maximum cataracting near the centrifuging threshold. Large mono balls for aggressive impact breakage of hard clinker.

Speed
85%
Media
38%
Ore
8%
Charge
46%

Slurry-Rich Wet Mill

Cataracting6m
High moisture ore - platinum

Heavy slurry operation with high ore fill. Reduced effective impact energy at the toe; watch for pooling behaviour.

Speed
70%
Media
20%
Ore
30%
Charge
50%