Page 40 - Hub Issue 54
P. 40

Crushing &
Screening
High capacity: The MC 120 Zi PRO is
a master of granite processing
A job for the first jaw crusher in the new PRO line from KLEEMANN: the MOBICAT MC 120 Zi PRO has an impressively strong crusher and, when combined with the largest, independent prescreen in its class, it achieves high capacities, as demonstrated recently in a quarry in Norway. The Stangeland company processes granite at the Veidekke Hyllestad quarry, located on the peninsula on the Sognefjord, near Leirvik. Veidekke produce asphalt at this location, which is loaded directly onto ships and transported to various processing sites.
Fines are kept out of the crushing process
In Sognefjord, an excavator transfers the blasted granite to the feed unit of the MC 120 Zi PRO. Because the feed material contains a high percentage of fines, the double-deck pre-screen is of critical importance: it prevents the fine material
from getting into the crusher unit, helping to increase produc- tivity and efficiency. Thanks to the plant’s high feed rate, the crusher unit operates at full capacity under all conditions and extremely efficiently with its diesel-electric drive. Should material ever become jammed, the reversible crusher drive springs into action. With this optional unit, the system can be run in both the normal forward direction and in reverse when the crusher is full. After the MOBICAT MC 120 Zi PRO does its job, the pre-crushed material is conveyed to a multi-stage stationary plant that crushes it to the required grain sizes.
up to +50 °C.
The new PRO line of jaw crushers from KLEEMANN: the MOBICAT MC 120 Z PRO pre-crushes virtually all types of natural stone.
Compact crusher with tremendous power development
Stangeland have been operating the plant for several months now and are extremely pleased with its high output. For years, they had been using a rival machine that was equipped with a crusher unit of identical size, and therefore did not expect any significant difference in overall performance. But it quickly became apparent
in day-to-day operation: “Even with the biggest boulders, the crushing unit on the MC 120 Zi PRO barely loses speed or power at all. The material just flows right through. Our old plant would have long since ground to a halt. That's why the MOBICAT PRO was an instant hit with me,” says Arve Kenneth, Stangeland Machine Operator.
Ready for the Norwegian winter: Stangland’s MOBICAT PRO plant is con- figured with a cold package that enables operation at temperatures down to –25 °C. KLEEMANN also offer a heat package for work at temperatures
50 t/h is the maximum feed capacity of the MC 120 Z PRO jaw crusher.
Job site details:
Rock processing at a quarry on the peninsula on Sognefjord, Norway
• Material:Granite
• Feedsize:0-700mm
• Endproduct:0-150mm
• Crushingcapacity:335t/h
• Closedsidesetting(CCS):100mm
www.hub-4.com Jan 2019 - Issue 54
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