Grate Opening

[Grate Hole]

The grate opening refers to the hole size and hole shape that is cut into a steel grate. The grate opening allows material to exit the grinding mill onto the discharge conveyor. Grate hole sizes can be as small as 5/8″ (1.5875 cm) and as large as 8″ (20.32 cm) and anywhere in between. The most common hole shapes are hex, round, square, diamond, and rectangle.