Crusher Terminology Introduce

As some of our customers do not understand the professional crusher terminology very well, this leads to inconvenient communication. In order that there will be no possibility of confusion or misunderstanding, these terms are defined as to their usage in communication.

FEED : The raw material that is to be crushed.

LINERS : The bowl liner and mantle are the crushing members and are commonly referred to as liners.

CAVITY : The internal contour formed by the two crushing members.

PARALLEL ZONE : With the liners in their closest relationship during the gyrating cycle, the lower portion of both the bowl liner and mantle, for some distance, will be parallel to each other. This area is known as the parallel zone.

FEED OPENING (Closed Side): The smallest distance between the top of the crushing members as measured when the two crushing members are at their closest relationship during their gyrating cycle.

FEED OPENING (Open Side): The largest distance between the top of the crushing members is measured when the two crushing members are at their farthest relationship during their gyrating cycle. The feed opening (open side) determines the maximum size of the feed. As a general rule, the maximum size of the feed should not exceed the closed-side feed opening.

DISCHARGE SETTING: The distance between the bottom of the crushing members as measured at the point where the two crushing members are at their closest relationship during their gyrating cycle. This discharge setting regulates product size.

MINIMUM DISCHARGE SETTING: The smallest permissible distance between the bottom of the crushing members as measured when the two crushing members are at their closest relationship during the gyrating cycle.

DISCHARGE OPENING: The distance betweeen the bottom of the crushing members as measured at the point where the two crushing members are at their farthest relationship during their gyrating cycle. This wide opening permits rapid discharge of the crushed material.

FEED SIZE: This is equal to the square opening of wire cloth on a screen that the material can pass through. (EXAMPLE: A 50 mm (2″) feed size is any material that can pass through a screen that has 50 mm (2″) wire cloth.)

PRODUCT SIZE: The size of the screened material after it has been crushed.

CAPACITY: The output of the Crusher is computed in tons per hour.

OPEN CIRCUIT OPERATION: The type of operation where precise uniformity of product size is not considered to be of prime importance and the feed is run through the Crusher but once.

CLOSED CIRCUIT OPERATION: The type of operation where precise uniformity of product size is important and the product is screened as it is being discharged and the material which does not pass through the screen is returned to the Crusher.

If you still have something can not understand, contact us freely!