AGGREGATES MANAGER March 2014
by Therese Dunphy,
THE BIG CRUSH
When it comes to primaries, this is a round-up of crushers will kick-start your processing operations.
Diesel or electric impact plant Efficient performance
The Grasan KRH1620 horizontal-shaft primary impact crusher plant is available in
pit-portable and stationary models for high-volume aggregates and concrete/asphalt
recycling operations. The crusher can reduce 24-inch limestone down to 6-inch minus
in one step and produce a cubical-quality product at up to 800 tons per hour. The plant
features a Hazemag 1620 APPH impactor with fully automatic hydraulic cylinder system
for increased crusher capacity, smooth operation, and uniform products. The 50-inch
high, 80-inch wide inlet accommodates incoming materials up to 36-inch cube.
Grasan | www.grasan.com
Irock's RDS-20 primary crushing plant is said to be a highly portable, easy-to-operate mobile
unit. It combines a closed-circuit design, high-performance four-bar impactor, and heavy-duty
components for reliability, increased efficiency, and the precision to produce a uniform, cubi-
cal product. It also is versatile enough for use across multiple industries and can process a
variety of materials, including quarry rock, demolition debris, recyclable materials, and base
rock for oil fields.
Irock | www.irockcrushers.com
Kleemann offers two new jaw crushers, the Mobicat MC 110 Ri EVO and MC 110 Zi
EVO. The MC 110 Ri EVO has a vibratory feeder with integrated grizzly, while the MC
110 Zi EVO incorporates a vibrating feeder with an independent, double-deck, heavy-
duty prescreen. The crusher inlet on each unit is 28 inches x 44 inches. The machines
now boast lighter transport weight to ease portability. The redesigned machines include
features such as the hopper walls integrated in the chassis and a fully hydraulic crushing
Kleemann | www.wirtgenamerica.com
The new generation Vanguard Jaw Crusher is said to reduce maintenance and increase
performance. The optional tramp iron relief system enables adjustment to the closed-
side-setting on the fly while providing overload protection from tramp iron events.
KPI-JCI says the increased stroke, toggle angle, and flywheel inertia provide up to 25
percent more production, greater efficiencies, and lower fuel costs over competitive
models. Components such as the common flinger collar, stress-relieved base frame, and
machined saddle work to reduce cost of ownership.
KPI-JCI | www.kpijci.com