The Mighty Gyratory Crusher: Powerhouse of Primary Crushing

In die veeleisende wêreld van mineraalverwerking en aggregaatproduksie, where mountains of rock must be reduced to manageable sizes efficiently and reliably, one machine stands tall – quite literally – as the cornerstone of primary crushing circuits: die Gyratory Crusher. This robust and sophisticated piece of engineering represents a pinnacle of continuous high-capacity crushing technology.

Fundamental Principle: A Superior Spin

Unlike its close relative, die kakebeenbreker, which employs a reciprocating motion, die roterende breker werk op 'n fundamenteel ander beginsel: continuous compression via gyratory motion. At its heart is a central vertical spindle (the main shaft), topped by a heavy conical head (die mantel), freely suspended within an inverted conical concave hopper (the concaves or bowl liner). The critical action comes from an eccentric assembly mounted low on the main shaft.

As the eccentric rotates (driven by powerful motors via belts or directly coupled), dit gee 'n ossillering, gyratory motion to the lower portion of the main shaft and mantle assembly. This motion causes the mantle to gyrate within the stationary concave liner. Rock fed into the top of the crushing chamber is progressively nipped and crushed between the mantle's gyrating surface and the fixed concave as it travels downwards through an ever-narrowing gap.

Anatomie van krag

components define its strength and function:

1. Spider & Top dop: The massive upper frame housing supporting bearings and often incorporating dust sealing.

2. Hoofskag: The central rotating element transmitting motion from the eccentric.
3. Mantel: The wear-resistant conical crushing head attached to the main shaft.
4. Concave Liners: Stationary manganese steel segments lining the crushing chamber walls; their profile defines product size.
5. Eksentrieke Vergadering: The mechanism generating the crucial gyratory motion.
6. Onderste dop & Hydroset System: Houses bearings and incorporates a hydraulic mechanism (Hydroset™ being a common trademark) for rapid adjustment of the closed-side setting (CSS) – controlling product size – even under load.
7. Ry stelsel: High-torque motors driving either directly or via V-belts/pulleys.

Why Choose Gyratory?

Gyratory crushers offer distinct advantages in primary crushing applications:

1. Ongeëwenaarde kapasiteit & Deurset: Their design allows for continuous feed acceptance over a large receiving