Mobile Crushers
It was a German limestone quarry that saw the World’s first mobile crusher. The idea was born to take advantage of a continuous belt conveyor haulage and eliminate the costly road construction and up-keeps on wet ground. Since then, the mining industry, mostly quarries have seen 100s of mobile crusher installation crop-up most (70%) of which […]
Rock Crushing Rule of Thumb
Here is a list of Rules of Thumb often used in Rock Crushing and around Crushers: Crusher Selection For a hard rock mine application below 600 tonnes/hour, select a jaw as the primary crusher. Over 1,000 tph, select a gyratory crusher. Between these capacities, you have a choice. Source: Chris Ottergren For a hard rock mine application below […]
Badger Jaw Crusher
With its 5″ x 7″ jaws, the 800 lbs Badger Jaw Crusher provided exceptional crushing capacity of 1300 lbs/hr (at 3/4″ P80) with minimum power consumption obtained by a unique 400 RPM movable jaw plate motion.
Chipmunk Jaw Crusher
Chipmunk Crushers have been around for decades. The Chipmunk is a very solid high performance 300 lb crusher mostly used in laboratory. Its jaw opening in 2 1/4″ x 3″. The Chipmunk Jaw Crusher cost around $4500 without motor and $7000 with motor. An alternative to buying a chipmunk crusher is the 911MPEJAC23 rock crusher without or […]
Laboratory Sieve Shaker
The Laboratory Sieve Shaker will quickly and efficiently size laboratory products, thus allowing the determination of various important treatment factors. Results of sizing tests and analyses of sized products will determine such important factors as the following: Size at which valuable mineral is freed from the gangue. Whether tailing losses occur in coarser or finer […]
Compare and Understand Rod/Ball/Impact-Crushing/Abrasion BOND Work Index
BOND RWi, BWi, CWi, Ai Work Index: What’s the difference Three Bond work index tests are commonly used in the industry. This essay discusses some observations from SAGMILLING.COM database of published grindability results about relationships, and lack thereof, between the Bond comminution tests. A further comment is made about the Bond abrasion index and its […]
High-Speed Gyratory Crushing –> Fine Cone Crushers
I covered briefly the development of various types of reduction crushers of the gyratory family. Below you see a gyratory reduction crusher, which introduced the cylindrical top shell, flared head, and reversible concaves. Even with the older style of straight concaves, with which this machine was originally fitted, it represented a distinct step forward in […]
Gyratory and Cone Crushers
Gyratory crushers and cone crushers, while looking the same and performing similar duties, are two different machines. A quick look at a machine will allow you to determine if it is a gyratory or a cone In simple terms, if you look at the top of the crusher and it has supporting arms (“spider arms”) […]
SECONDARY CRUSHER ALLIS CHALMERS
Not just basic processing machinery but power and distribution motors and drives control pumps – almost everything needed to run that equipment ! Thus, A-C Cooperative Engineering “teams-up” machines and power to give you greater production . . . not only with new, but existing equipment as well. And because A-C builds many different […]
Symons Cone Crushers Nordberg
SYMONS CONES High in Colorado’s mountains is the world’s largest producer of molybdenum. While the great mine of the Climax Molybdenum Company is outstanding in many respects, the enormous tonnage of fine product handled in its modern crushing plant is especially noteworthy. Here too, at this great American mine, the reduction crushing is being done […]