Grinding Ball Mill Small Mini Ball Mill 1 Ton Per Hour Cement Gold Processing Machine Prices
Ball mill can grind various ores and other materials with dry type and wet type. There are two kinds of ball mill, grid type and overflow type due to different ways of discharging material.
Model:1830x4500mm
Feeding Size:≤25mm
Output Size: 0.047-0.4mm
Motor Power:155kw
Capacity:4-19 tons
Weight: 32T
Ball Mill grinds material by rotating a cylinder with steel grinding balls, causing the balls to fall back into the cylinder and onto the material to be ground. The rotation is usually between 4 to 20 revolutions per minute, depending upon the diameter of the ball mill. The larger the diameter, the slower the rotation. If the peripheral speed of the mill is too great, it begins to act like a centrifuge and the balls do not fall back, but stay on the perimeter of the mill. The point where the mill becomes a centrifuge is called the “Critical Speed”, and ball mills usually operate at 65% to 75% of the critical speed.
