the williams willpactor ii is a rugged, secondary impact crusher that can even be used as a tertiary crusher .with a large feed opening and superior rotor design, the willpactor ii offers increased feed size rotor mill amp parts spherical roller bearings are grease lubricated with taconite type double cavity block seals nbsp
IMPACT BEDS. A new and fairly common component on a conveyor is an impact bed used primarily in the load zones. The major advantage of an impact bed is that its stronger frame design will accept a lot more abuse from heavy load and impact.
During the first half of the nineteenth century, mechanical crushing was not cheaply available. Stone had been crushed for applications such as Macadam road metal exclusively by hand, using the cheapest available labour, such as convicts and workhouse inmates.