Controlling the microstructure
Whether wet grinding ore for iron, copper or gold production, or dry grinding recycled glass or softer materials, even the slightest variations in steel chemistry and microstructure can have dramatic impacts on wear resistance.
Superior hardness
This is why, in addition to their superior hardness, our highcarbon grinding balls are rigorously controlled to ensure consistent rolling, tempering and quenching for optimal wear resistance in every batch. Likewise, our tailor-made rod grinders are delivered as rolled, in a wide range of dimensions, with hardness levels up to 688-739 HBW (62-65 HRC). The result is one of the market’s broadest portfolios of supremely robust grinding media, reliably processed, tailored and delivered to guarantee your long-lasting performance.
Optimized performance
Forsbacka Kulverk combines know-how in steel making and nearly 100 years of experience manufacturing of grinding media, selecting the right steel grade together with the correct processing and heat treatment parameters in order to optimize performance under different working conditions.
Wear resistance
For a given grinding ball – steel chemistry and micro structure are the dominant factors for controlling wear resistance.
Increasing hardness leads to improved wear resistance.
Standard products
- A-810/A-809B, 51CrV4 grinding balls in sizes: 25 –30 –35 –40 –50 –60
- The Balls are delivered quenched and annealed.
- In addition balls can be delivered tumbled or shot blasted and painted.
Grinding rods Ø25-120 mm in different grades are available upon request.
Grinding balls up to Ø 60mm and also other steel grades such as 52100 can be supplied upon request.
Downloadable Product Information
Read more about our Code of Conduct.