Cast Products South Africa has been a trusted supplier of coal pulverising castings to the South African power generation industry for decades. Our wear-resistant components are engineered to withstand the harsh, abrasive conditions of local coal combustion environments — helping power stations maintain efficiency, reduce downtime, and lower operational costs.
Since the 1960s, we have specialised in the manufacture of high chrome iron castings for pulverising equipment. Our expertise and ongoing research have positioned us as a leader in supplying components for:
Vertical spindle mills (including Babcock varieties)
Ball mills
E-type mills
Many of the cast components found in South Africa’s largest coal-fired power stations have been manufactured by Cast Products.
South African coal used in power generation is typically of lower grade, with high ash content and highly abrasive properties. These conditions require castings with exceptional hardness and wear resistance. At Cast Products, we’ve developed materials and machining techniques specifically to combat these challenges.
We use high chrome white irons for critical components, such as:
Grinding rings
Grinding rollers
Table liners
Solid and hollow grinding balls
Our high chrome iron castings deliver both hardness and toughness, making them the most suitable solution for long-term wear in abrasive environments.
Our fully equipped machine shop can handle even the largest casting sizes:
Grinding elements up to 4,260 mm in diameter
Weights up to 14 metric tons
Hollow balls up to 1,150 mm in diameter, machined to tolerances of ±2.5 mm
Whether it’s rings, rollers, or large balls, our precision machining ensures fast turnaround and consistent quality.
Traditionally, E-type mill balls were made of alloy steel. However, high chrome iron balls are becoming the preferred choice due to their improved performance. Cast Products has led the development of both solid and hollow high chrome balls, offering greater resistance to wear and longer service life.
We also manufacture chrome-molybdenum steel balls for clients requiring specific impact resistance or metallurgical properties.
With decades of experience, strict quality control, and a commitment to innovation, Cast Products South Africa delivers world-class casting solutions that power stations can rely on. Our pulverising components are built to meet the increasing demand for cost-effective, low-maintenance coal milling.