GE Mill Drive Increases Grupo Mexico Capacity0 pages

GE
Power Conversion

case study

Grupo Mexico

GE Mill Drive Increases Grupo Mexico Capacity

Grinding Application

Over the last several years, there has been a growing demand for copper ore
exports from Mexico. To help meet this demand, Grupo Mexico, in conjunction
with Metso Corporation, added 6 huge 14 MW ball mills to their facility located
in the Sonora state of Mexico. For these new mills, the engineering team
needed a proven electric drive technology that was reliable and had
unique efficiency characteristics to help offset their increased operational
power costs.

Buenavista Mine

Quadramatic™ System

6 Quadramatic Systems
14 Megawatt
180 RPM
13.2 kV

g

GE proposed and sold six Quadramatic™ Drive Systems which includes a total
of 12 low-speed synchronous motors to drive the mill through air clutches and
pinions onto a common ring gear. Quadramatic electric synchronous motors
work as pairs with adjustable torque to handle cascading loads in a mill while
providing leading VAR's back into the plant grid. Thereby, power requirements
for the system are lower than for other mill drive technologies.
“We selected GE’s Quadramatic motor technology to help us boost production
and take advantage of record high copper prices driven by Asia’s strong
infrastructure expansion activities,” said the Corporate Purchasing Director at
Grupo Mexico. “By supporting the long-term economic viability of the
Buenavista mine, our expansion project will support the local economy at
Cananea Sonora, Mexico.”
The elegant simplicity of the Quadramatic Systems have built a strong
reputation in the mining industry for over 40 years.

Parts: 1-800-458-0451
Motors: 1-800-541-7191
www.gepowerconversion.com
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