Types and materials of ball mill steel balls

The ball mill is the key equipment for grinding after the materials are crushed. It is the core machine in many industries such as cement and chemical industry. The steel ball components occupies an important position in the ball mill equipment, which drives the operation of the whole machine and affects the production volume.

Types of ball mill steel balls

1.  Forged steel balls: use better wear-resistant materials, such as 60Mn, 65Mn, which have the characteristics of good quality, good impact resistance, strong toughness, and good wear resistance.

2.  Cast steel balls: The production of cast steel balls is relatively simple, and the production investment is small. It has the characteristics of low energy consumption, high impact toughness, flexibility, etc., and because the operation is easy to master, it has won the favor of the majority of users.

3.  Hot-rolled ball-milled steel ball: It has the characteristics of good forming, small geometric tolerance and stable quality. The wear rate is low, the service life is 2 to 5 times that of the existing cast iron balls and forged steel balls, and the price is moderate.

Ball mill steel ball material

1.  High manganese steel: This material has good toughness, good manufacturability, and low price. Its main feature is that under the action of greater impact or contact stress, the surface layer will quickly produce work hardening, and its work hardening index is higher than other materials 5-7 times, the wear resistance is greatly improved.

2.  Low-carbon alloy steel ball: The steel ball made of low-carbon alloy has good toughness and low price. Under the same conditions, its service life is more than twice as long as that of low-chromium cast balls.

3.  High chromium cast iron: a wear-resistant material with excellent abrasion resistance, but low toughness, brittle fracture, and expensive.

4.  High-carbon and high-manganese alloy steel: The material is mainly alloy structural steel containing chromium, molybdenum and other elements, with high hardness and good toughness. Under the same working conditions, its service life is more than twice that of high manganese steel balls.