NEW YORK Operations at
Copper Mountain Mining Corp.s semi-autogenous grinding
(SAG) mill at its Copper Mountain Mine in British Columbia have
been temporarily suspended after one of two transformers that
power the mills motors failed, the company said May
Production is due to be back
online May 18, once a transformer from a ball mill is moved to
the SAG mill, Copper Mountain said.
The Vancouver, British
Columbia-based company expects the transformer repair to take
about four weeks.
As a result, output will be
limited to about 24,000 tonnes per day during that time, Copper
Mountain said, vs. an average run rate of 29,000 tonnes per day
in the first quarter of 2013.
"This transformer failure is an
extremely unfortunate event for the operation, as our team has
been making significant strides in getting our SAG mill up to
full capacity," Copper Mountain president and chief executive
officer Jim ORourke said in a statement. "Immediate metal
production will be impacted, but all resources are being made
to minimize the impact."
The company has informed its
insurance carrier of the incident, and the transformers
manufacturer has sent a representative to the mine site. The
damaged transformer is being shipped to Edmonton, Alberta, for
The cause of the failure is being evaluated. No further
details were available.