Our Experience with the installation and commissioning of gyratory crushers will ensure success
for your project. We take the approach that others don't, we plan for reliable full production
operation and keep the maintenance and operations as a priority. We focus on the criticality of
the crusher as a key system and single point of failure area that must be PERFECTLY INSTALLED
to maximize operations. WE KNOW HOW TO INSTALL CRUSHERS CORRECTLY!



Gyratory crusher
A gyratory crusher is similar in basic concept to a jaw crusher, consisting of a concave surface
and a conical head; both surfaces are typically lined with manganese steel surfaces. The inner
cone has a slight circular movement, but does not rotate; the movement is generated by an
eccentric arrangement. As with the jaw crusher, material travels downward between the two
surfaces being progressively crushed until it is small enough to fall out through the gap between
the two surfaces.

A gyratory crusher is one of the main types of primary crushers in a mine or ore processing plant.
Gyratory crushers are designated in size either by the gape and mantle diameter or by the size
of the receiving opening. Gyratory crushers can be used for primary or secondary crushing. The
crushing action is caused by the closing of the gap between the mantle line (movable) mounted
on the central vertical spindle and the concave liners (fixed) mounted on the main frame of the
crusher. The gap is opened and closed by an eccentric on the bottom of the spindle that causes
the central vertical spindle to gyrate. The vertical spindle is free to rotate around its own axis.
The crusher illustrated is a short-shaft suspended spindle type, meaning that the main shaft is
suspended at the top and that the eccentric is mounted above the gear. The short-shaft design
has superseded the long-shaft design in which the eccentric is mounted below the gear.
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