• Certified Company
  • ISO9001:2015
  • Great Industrial
  • Solution Provider

Forged Grinding Balls

Planned set of interrelated tasks to be executed over a fixed period.

Forged Grinding Balls

Diameter: 20mm-165mm (4/5” to 6½ approx.)
The raw material we use is of high quality bar
High end heat treatment technology, based on our 25 years of metallurgical experience guarantees a long wear life.
We cater for SAG mills and Ball mills.
We provide a “tough surface” to “tough core”

SPECIFICATIONS

Nominal Diameter Diametrical Tolerance Average Weight of Single Ball Surface Hardness Impact Toughness
mm mm g HRC J/cm2
20 +2 -1 32 60-65 ≥12
25 +2 -1 64 60-65 ≥12
30 +2 -1 110 60-65 ≥12
40 +2 -1 263 60-65 ≥12
50 +2 -1 513 60-65 ≥12
60 +3 -2 888 60-65 ≥12
70 +3 -2 1410 60-65 ≥12
80 +3 -2 2104 60-65 ≥12
90 +3 -2 2996 60-65 ≥12
100 +3 -2 4110 60-65 ≥12
110 +4 -2 5457 58-63 ≥12
120 +4 -2 7102 58-63 ≥12
130 +4 -2 9030 58-63 ≥12
140 +4 -3 11278 55-60 ≥12
150 +4 -3 13871 55-60 ≥12

SPECIFICATIONS

Item Material C Mn Si Cr S P
MW-1 50Mn 0.48-0.56 0.7-1.0 0.17-0.37 ≤ 0.25 ≤ 0.035 ≤ 0.035
MW-2 60Mn 0.57-0.65 0.7-1.0 0.17-0.37 ≤ 0.25 ≤ 0.035 ≤ 0.035
MW-3 65Mn 0.60-0.70 0.9-1.2 0.17-0.37 ≤ 0.25 ≤ 0.035 ≤ 0.035
MW-4 75MnCr 0.70-0.85 0.7-0.8 0.17-0.37 0.20-0.60 ≤ 0.030 ≤ 0.030
MW-5 B2-1 0.55-0.70 0.65-0.85 0.15-0.30 0.7-1.10 ≤ 0.020 ≤ 0.020
MW-6 B3 0.58-0.66 0.68-0.8 1.7-1.9 0.78-0.9 ≤ 0.030 ≤ 0.030
MW-7 B6 0.75-0.9 0.8-1.02 0.17-0.37 0.88-0.98 ≤ 0.035 ≤ 0.035