Mill Scale Pits

Mill scale pits collect steel flakes, cooling water, and oil residues generated during hot rolling and descaling processes. These pits act as settling basins that separate heavy mill scale particles from process water before recirculation or disposal.

Challenges:
Mill scale is extremely abrasive, dense, and prone to settling, creating heavy sludge that is difficult to pump. Standard centrifugal pumps often fail due to clogging, excessive wear, or seal breakdown caused by the mixture of metallic solids, oils, and water. Maintenance and downtime in scale pits can disrupt production lines and increase operational costs.

Solution:
Hevvy/Toyo agitator pumps are engineered specifically for heavy, abrasive sludge applications like mill scale. Their robust wet-end design, high-chrome construction, and built-in agitators prevent settling and keep the slurry moving. By maintaining solids in suspension and minimizing wear, they deliver consistent pit cleaning and reliable long-term performance.