A jaw crusher where the tension rod includes an electronically-controlled
hydraulic pre-load and an automatically releasable pre-load whenever
adjustments to the size of the material output are made, together
with a remote visual indicator of the setting of the size of the
A seed crusher e.g. useful in methods for high throughput analysis
of seeds, comprises a horizontal well plate with at least one well
for receiving a tube; an open-topped tube for lining each well wherein
each tube is oriented for receiving a vertical reciprocating pin;
a horizontal die plate with a vertical pin located to reciprocate
in each tube; a removable separator for use in each tube to separate
a reciprocating pin from a seed at the bottom of said tube and a
press for bringing together the die plate and well plate to allow
a pin to enter each tube.
A rotor for a vertical shaft impact crusher includes a vertical
wall segment having a first wall portion which is tangential to
the rotor and is located adjacent to the periphery of the rotor,
and a second wall portion, which is angled in relation to the first
wall portion and extends from the first wall portion into the rotor.
The second wall portion includes a first section, which extends
from the interior of the rotor towards its periphery and forms and
obtuse first angle with the first wall portion, and a second section,
which connects the first section and the first wall portion. The
second section and the first wall portion form a second angle, which
is smaller than the first angle, and at least one pocket for retaining
A cone crusher mantle armor for ore comminution, comprising: a.
grooves laid out in the form of spires or helixes over the mantle,
where such grooves are integral to said mantle thus forming the
mantle armor, and b. such grooves and said mantle are manufactured
in a single casting.