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Woodlawn reopening closer as IsaMill arrives

Junior miner Heron Resources says its new IsaMill grinding machine will boost operations at its Woodlawn zinc-copper processing plant near Canberra.

Heron announced the arrival of the IsaMill, which is supplied by Glencore Technology, at Woodlawn in a July 24 statement to the ASX.

It said the new machine was a great example of the advances made in sulphide processing technology since operations last took place at Woodlawn in 1998.

Heron is restarting zinc-copper processing at the Woodlawn site, which sits in south-central New South Wales, 50 kilometres north-east of Canberra.

Work is on track to commission Woodlawn’s new processing plant by the end of 2018, with EPC contractor Sedgman reporting the project was 62% complete at the end of June.

Heron managing director Wayne Taylor said the IsaMill would provide the critical fine grinding capability to be an integral part of the processing plant.

“The arrival of the IsaMill marks the step change in technology to be applied to the Woodlawn Zinc-Copper Project,” he said.

“This technology only became available after Woodlawn’s former operations and it enables Heron to reduce the grind size to provide the most effective mineral liberation, allowing the highest recoveries to our base metal concentrates.”

Heron says the 3MW IsaMill, which first entered the market in 2000, will reduce Woodlawn’s mined sulphide to 30 microns in size, which has been demonstrated as the most effective to liberate the different zinc, copper and lead sulphides for separate transformation to base metal concentrates.

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