Specialist in balls for SAG Mills

In FSB we produce our high quality steel grinding balls using top quality steel, purchased in some of the best steel mills in Europe.

In Forjas Santa Barbara we produce grinding balls by closed matrix drop forging process, which allows us to give the balls the characteristics that allow them to achieve the best performance in the grinding process. This way we improve the grain size, orient the steel fibre and increase the tenacity of the balls.

Maximum quality steel balls

Our balls are notable for their high impact resistance, preventing breakages and spalling and ensuring stable grinding.

Their uniform volumetric and superficial hardness gives them great wear resistance, requiring smaller loads of grinding media and thus making for lower power costs in the grinding process.

Flexibility in the production process

The flexibility of our production process enables us to make any diameter of ball you need (the table shows only the most usual measurements).

Ø Hardness
(mm) (“) (Brinell) (Rockwell)
125 5 550-600 HB 55-60 HRC
115 4 ½ 550-600 HB 55-60 HRC
100 4 575-650 HB 58-63 HRC
90 3 ½ 575-650 HB 58-63 HRC
80 3 600-700 HB 60-65 HRC
70 2 ¾ 600-700 HB 60-65 HRC
60 2 ½ 600-700 HB 60-65 HRC
50 2 600-700 HB 60-65 HRC
40 1 ½ 600-700 HB 60-65 HRC
32 1 ¼ 600-700 HB 60-65 HRC
25 1 600-700 HB 60-65 HRC

How may we help you? Feel free to contact us.


We are guaranteed since 1998 by ISO 9001 certification.

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Corporate Video

The following video is an overview of Forjas Santa Barbara’s activity.