Category: Mines and Quarry

Deswik has launched a new optimisation software tool for dozers and draglines.

Dubbed Deswik.DD, it is a sectional design and analysis tool for design, optimisation and communication for dragline or dozer push operations.

According to Deswik it allows operators to analyse and refine dragline and dozer push designs, in turn reducing running costs.

Time savings of up to 80% in overall planning time can then be reinvested in scenario analysis to find the most efficient operating plan.

It allows for the automating of repetitive section operations, time as well as integration with upstream design and reserving tools, downstream scheduling tools, and 3d-DigPlus, the leading material movement simulation package from Earth Technology.

Ian Neilsen, Deswik senior consultant, dragline engineer, explained that the area is “an engineering discipline that has seen little improvement in 15 years, and yet is a key link in the planning of many mines around the world”.

In designing this tool operators can now deliver automation of section operations both along strike and down dip, in addition to manual operations; eliminate cumbersome spreadsheeting and manual transcription of results, integrating with 3d-DigPlus; simulation with 3d-DigPlus, providing a seamless user experienc; and integrate with production scheduling so the impacts of design updates are understood immediately.

“Now that the boom times are over, we are seeing a resurgent emphasis on a fundamental approach to improving mine operations, and have built this tool with optimisation as a clear focus,” he said.

Deswik added that future releases are focusing on deeper functional integration and improving all of the frustrating and unproductive steps in best practice design and analysis of dragline and dozer push operations.

We’ve updated the Australian mine map, showing the all the operating mines in Australia, and who runs which mine, and what they mine.

Click here to see the latest Mine Map.

An international quarry equipment supplier has joined forces with a reputable New Zealand quarry engineering company.
New Zealand-based quarry engineering company Rocktec is the latest distributor to join Terex Minerals Processing Systems’ (Terex MPS) global dealer network, which already spans the Americas, Europe, Africa, the Middle East, Asia and Australia.

Terex MPS global director Simon Croker said the company was delighted with the addition. “This is a great opportunity for us to work with this highly experienced business to expand and strengthen our foothold in New Zealand as a crushing and screening solutions provider,” he said. “We are sure that the excellent reputation that Rocktec have for service and support will also enhance the customer experience.”

New Zealand is not a new market for Terex MPS but John Flynn, the company’s market area director for Australia and New Zealand, explained that the supplier had identified value in renewing its focus in the region and increasing the level of support available to its New Zealand customer base.

He added that Rocktec was well positioned to help Terex MPS achieve these goals, stating, “Rocktec is a well-established supplier to the quarry industry with specialist knowledge of the New Zealand quarry market and a high degree of rock processing expertise.”

Working hand in hand
Rocktec sales and marketing manager Jason Tapper said Terex MPS was “an excellent fit” for the business, which engineers and manufactures its own original quarrying equipment for the New Zealand and Australian markets.

“Our decision to distribute for Terex allows us to provide products that supplement and complement our own product offering,” he said. “The two companies work hand in hand. We can now supply additional plant beyond the original equipment we manufacture to provide a complete package for our quarry customers.”

The distribution deal came into effect earlier this month, and Rocktec exhibited the new Terex Cedarapids LJ-TSV6203 vibrating screen at the recent QuarryNZ conference in Hamilton from 15 to 17 July.

Founded in 1991 by the developers of the Barmac vertical shaft impact crusher, Rocktec is now owned by the Southern Cross Engineering Group. In addition to its Matamata-based head office and manufacturing plant in New Zealand, the company has a Brisbane office and distributes its original quarrying equipment worldwide through an international dealer network.

Terex MPS is a supplier of crushing and screening plant – including modular and portable equipment – that encompasses the Cedarapids, Simplicity, Canica and Jaques brands. It is part of the Terex Corporation, a global lifting and materials handling solutions company that services various industries, including the quarrying, mining, construction and infrastructure sectors.

Austin Engineering are industry leaders in the design and manufacture of mining buckets to suit excavators, front end loaders and wheel loaders.
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Bradken chairman Nick Greiner and managing director Brian Hodges, who says the string of overtures from outsiders in the past 13 months had been frustrating to deal with at the same time as the company responded to a sharp downturn in the mining cycle.
Photo: Dean Osland Bradken chairman Nick Greiner says the beleaguered mining services group’s share price has “overreacted” to the company’s recent woes, as it entered into 60-day talks with Chilean industrial group Sigdo Koppers to explore a merger with its grinding media group, Magotteaux.
As revealed by Fairfax Media on Thursday, CHAMP Private Equity teamed up with the Chilean firm to inject $70 million into Bradken via redeemable convertible preference securities, preventing it from breaching its debt covenants.
The company also struck a deal with its lenders to lift the company’s gearing covenant to 3.5 times until December 31, giving the company valuable breathing space as it works to complete a restructure and commence the merger talks.
Investors pushed the company’s share price down to its lowest level in six years. In morning trading, the stock slid 15 per cent to $1.46, the lowest it has traded since March 2009, before closing down 11.3 per cent to $1.52.
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The mining consumables group once had a market capitalisation of $1.6 billion, when it was trading at just under $15 a share in 2007.
Mr Greiner said Bradken had eyed off a deal with Magotteaux for almost a decade.
“Magotteaux has been one of the companies, and I have been around for 10 years, that has been on our list … of acquisition targets,” Mr Greiner told Fairfax Media.
“It makes overwhelming commercial logic to put them together. We actually like the fact that there is some diversification away from mining … the world is changing and we think this is the sort of proposal that makes sense because it gives you serious scale and diversification.”
The potential merger is the latest in a long line of offers, of gradually decreasing values, the company has fielded in the past year.
In August 2014, Pacific Equity Partners (PEP) and Bain Capital offered $6 a share before reducing the offer and eventually walking away from it due to financing issues. PEP returned in April, this time partnering with Koch Industries, with a $2.50-a-share offer, which Bradken rejected on the basis it was “opportunistic”.
Mr Greiner said the recapitalisation with Sigdo Koppers and CHAMP, which bought and sold the company more than a decade ago and counts Mr Greiner as a member of its advisory board, and the potential merger with Magotteaux, presented a better option.
“What remains to be worked out is the extent of the future profitability of a combined business and how much Bradken shareholders can get in terms of value. But everyone, in terms of SK, realises we are looking at a value that is very clearly above the $2.50 [offer],” he said.
“PEP and Koch know my number and if they come back and it’s an attractive price it is perfectly obvious what the board will do.”
The company had $433.8 million net debt at December 31 and was guiding towards tough trading conditions in the second half. Bradken said it expects full-year EBITDA to fall between $136 and $138 million, with net debt of $420 million, prior to the investment by CHAMP and Sigdo Koppers. It also flagged a non-cash impairment charge of $135 million to $145 million.

Gindalbie Metals has called for a trading halt pending an announcement regarding a long term financing transaction.

Lower than forecast production and weak iron prices saw Gindalbie suffer a massive impairment on its Karara Mining project in half-year financial results.

The miner revealed Karara had $77.1 million in short-term liabilities, including “impending” debt repayments.

At the time, Gindalbie said it was working with its majority Karara partner Ansteel and Chinese lenders to secure financing options.

In March Gindalbie cut around 70 jobs in a bid to reduce costs.

Rio Tinto’s development of Oyu Tolgoi has taken a step further with an agreement signed by the Mongolian Government, Turquoise Hill Resources and Rio Tinto.
The Oyu Tolgoi Underground Mine Development and Financing Plan, announced this morning, addresses key shareholder issues in terms of funding for the project.
A statement from Rio Tinto said the next phase of development will shift to finalising project finance, conducting the feasibility study and securing permits to proceed.
Mongolian prime minister Chimediin Saikhanbileg expressed his hopes for the impact of Oyu Tolgoi on the Mongolian economy, which holds a 34 per cent stake in the project.
“Mongolia is back in business,” he said.
“Oyu Tolgoi is a world-class copper-gold asset and its further development is of great economic significance for Mongolia.
“Unlocking Oyu Tolgoi’s underground mine will have a significant impact on the Mongolian economy, which will benefit Mongolian citizens for generations to come.
“Our joint agreement clearly positions Mongolia as an attractive country for investment and underscores the fact that Mongolia is open for business.”
It is expected the Oyu Tolgoi mine will contribute about a third of the Mongolian economy at full production, and will be the world’s third biggest copper mine.
The Oyu Tolgoi expansion project was plagued by disagreement between the Mongolian Government and JV partners over accusations of non-payment of US$30 million in taxes, which Rio Tinto denied.
Construction of the project began in 2009, and was suspended in July 2013, which resulted in job losses for 1700 workers.
Rio Tinto copper and gold chief executive Jean-Sebastien Jacques said the joint agreement reflected “tremendous leadership” on the part of all parties concerned.
“The resolution of the outstanding issues reinforces the principles of the Investment Agreement signed in 2009, which underpinned the US$6 billion invested in Oyu Tolgoi to date, and provides a clear and stable framework for the future,” he said.
The first phase of Oyu Tolgoi shipped a total of 1 million tonnes of copper concentrate by March 2015, less than two years after first production.
Rio Tinto said the project has paid US$1.3 billion in taxes, fees and royalties to the Mongolian Government to date.

Twitter is a great way for mining companies to show the public what they’re all about, and some have nailed the medium to create entertaining content for us tweet-heads.

We are a huge fan of Twitter here at the Australian Mining office and use it every day to source information, see what companies are up to and just generally stay in the loop as to what’s going on in the world.

But our favourite Twitter accounts centre around the world of mining because we love the sector.

The Marion 7900 Walking Dragline stood 60m high and scooped 19.11 m3 in one bite from a bucket. Moura Mine 1960s

The low price of iron ore has claimed another victim, with Sinosteel Midwest to shut its Blue Hills mine.

110 people will lose their jobs as part of the closure, including 50 workers from mining contractor MACA.

Sinosteel said low iron prices and lengthy delays in obtaining environmental approvals for the expansion of the Blue Hill mines had led to the decision to shut the operation.

“Operations and corporate staff are likely to be progressively made redundant in line with operational requirements,” the company said.

MACA said the Blue Hills contract had generated the company approximately $3.5 million per month.

As a consequence of the suspension MACA advised that its full year revenue guidance for the 2015 financial year will remain approximately $600 million. However MACA said its work in hand position will reduce by approximately $30 million.

Quarry expansions in NSW will add to mining jobs in the state, according to the state Planning department.

Approvals for expansions to two quarries, the Tinda Creek Sand Quarry near the Wollemi National Park, and the Gunlake quarry near Goulburn, will create an additional 18 jobs for each operation, including truck drivers.

The rate of production at the Gunlake quarry will be increased by 50 per cent to see up to 750,000 tonnes of rock extracted each year.

Of the 15 submissions made in relation to Gunlake, seven opposed the expansion on grounds of noise, dust, surface water and other environmental considerations.

A spokesman for the department said the departmental compliance team would monitor the site to ensure strict conditions determined during public consultation were followed.

“We have approved the expansion based on the fact that the associated impacts can be appropriately controlled and it will bring a number of benefits for the local community and NSW as a whole, including more jobs and helping to meet construction industry demand for rock,” a spokesman said.

Approval for the expansion of the Tinda Creek sand mine will extend the lease from 2021 to 245, which will allow 300,000 production tonnes per year.

“Not only does this mean ongoing jobs for the 18 employees and contractors who work at the quarry, but the increase secures vital sand supplies needed for growth in Sydney’s booming north-west over the next 25 years,” a spokesman for the department said.

In response to feedback from environmental groups the expansion was scaled back to increase buffer zones between the quarry and the nearby Yengo National Park, as well as expansion to the biodiversity offset areas.