The Moly-Cop Ball Milling range of grinding balls -  when performance matters

Moly-Cop manufactures grinding balls to exacting internal specifications at its grinding media production facility across the globe.  The balls are manufactured from high carbon, alloy steel bars and then forged into balls.  Balls for use in mineral processing ball milling operations are designed for maximum abrasion resistance using high carbon content and high hardness levels.

Product Specifications


Sizes:  Moly-Cop manufactures grinding balls for use in ball milling and regrind applications in nominal sizes from 1.0” to 4.0” in diameter.

Chemistry:  An individual chemical profile has been developed for each diameter ball to correspond with the requirements for heat treatment. Specific alloy additions are included to produce optimum physical properties. The chemistry of the balls is controlled through a close collaboration with our bar suppliers and robust internal quality systems.

Surface & Volumetric Hardness:  Surface and cross-sectional hardness of the balls depends on the microstructure of the steel which is altered using carefully selected heat treatment variables specifically designed for each particular alloy.

Supply and Quality Guarantee:  Long established strategic relationships with local and foreign raw material suppliers allow us to ensure all balls supplied to our customers are made from the highest quality products and meet strict Moly-Cop specifications. This combined with our global manufacturing network gives our customers the confidence in the quality of the product that only Moly-Cop is able to assure.



Packaging Options

Bulk:  Moly-Cop has the ability to transport balls in bulk by open top trucks, open top railcars, or in standard 20 ft containers.

Bags:  Balls can be supplied in polypropylene bags which have secure bag straps to reduce time and effort in loading and unloading. While bags are treated to resist UV rays, bags should be protected from direct sunlight to maximize shelf life.

Drums:  Some Moly-Cop sites can provide balls in reconditioned drums.  Drums can be placed directly on trucks or placed on wooden pallets to assist handling.



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