The Hartl Jaw crusher has a "quattro movement".
This is made possible by the up-thrust toggle position,
giving the swing jaw a very aggressive motion.
This means that, when compare to other jaw crushers,
Hartl crushers can handle materials, which are 25 % larger
without having blockages in the crusher inlet.
The motion of the swing jaw also gives the material
a post-crush as the material leaves the crushing chamber
- due to this, Hartl jaw crushers produce a constant and
cubically shaped end product.     

* Video Jaw Crusher (3,6 MB)