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MiningWeekly.com | Mining Sector News | Mining | Contract Mining - Page 21

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Contract Mining News

Lean operating approach sinks in

By: System Author 27th August 1999 Drilling, tunnelling and shaftsinking →

‘Ideal’ shallow-hole drill rig

By: System Author 27th August 1999 Cementation Mining →

R5,2-million electrical and instrumentation contracts carried out

By: System Author 30th July 1999 THE commissioning of a R1-million automation installation at the Beeshoek iron-ore mine’s plant is the culmination of R5,2-million-worth of contracts carried out by electrical-instrumentation contractor Wade Walker, member Steve Walker tells Mining Weekly. The independent contracting firm... →

Mid-South outsourced

By: System Author 30th July 1999 For Assmang to meet the 5,5-million tons-a-year iron-ore target at Beeshoek in two years, a heavy media separation jig plant is required. Avmin ferrous metal director Jan Steenkamp report an 8-million-ton dump of non-conforming contaminated ore could be treated by the jig plant at a rate of up to... →

Outsourcing points the way

By: System Author 2nd July 1999 The outsourcing of processing operations is the way not only the coal industry, but the whole South African mining industry, is going, observes coal contracting specialist Minopex GM Tony Riley. “Minopex is offering clients an opportunity to consider the outsourcing of their coal-processing... →

Promising adjoining areas

By: System Author 25th June 1999 What is referred to as Target is really only Target south. This, on its own, is destined for at least 15 years of life. But adjoining are areas of potential future expansion, embracing Target north, and Sun south, each already showing signs of significant potential. Target south embraces the... →

Loraine could have been highly profitable

By: System Author 25th June 1999 HAD Loraine gold-mine been mined as Target will be mined, it would have been highly profitable. Records show that for seven years of its life, while mining the Weltevreden fan, Loraine mined at a recovered grade of 11 g/t-plus. “It was an excellent orebody and equivalent to that at... →

Info providing cost headstart

By: System Author 25th June 1999 Accuracy of information is giving Target gold-mine a major cost headstart. Drilling and years of mining at adjoining Loraine is minimising risk. The main drilling programme finding is that the extensive shallower Eldorado formation containing Elsburg and Dreyerskuil reefs continues north from... →

New era for SA gold-mining now on target

By: System Author 21st May 1999 Unconventional philosophies to be implemented at Avgold’s new Target mine in the Witwatersrand basin herald the beginning of a new era in gold-mining in South Africa. Based on the foundations of mechanisation, information and modern organisational design, the operation is expected to yield... →

‘Big’ small contractor

By: System Author 14th May 1999 Durban-based civil engineering, drilling and blasting company Eire Contractors is reported to be the biggest of the smaller-volume customers of Sasol Mining Explosives (SMX), states MD John Moffatt. The company is blasting 300 t of SMX explosives a month and, although not being able to compete... →

Musselwhite Thunder Bay, Ontario

By: System Author 30th April 1999 Name: Musselwhite Location: 500 km north of Thunder Bay, north-western Ontario, Canada Brief description: Musselwhite is a $190-million fast-track open-pit and underground gold-mine as well as a new 3 300 t/day plant. Products: Gold Geology: The mine’s gold-bearing zones are centred within... →

19% of capex spent so far

By: System Author 23rd April 1999 Some R60-million has been expended so far on the Kroondal Platinum Mines (KPM) project, representing just over 19% of the R311-million budgeted to do the complete job, financial manager Graham Ferreira tells Mining Weekly. In addition to the R60-million already paid out, a total of R160-million... →

Instantly-paying mine

By: System Author 23rd April 1999 A major economic advantage of the new Kroondal platinum operation is that all mining is on reef, both in the open pit and underground, Mining Weekly can today report. This means that there is no need for the construction of costly underground infrastructure to access platinum-bearing ore. The... →

Cutting-edge of quarry products

By: System Author 16th April 1999 As part of the ongoing drive to improve the quality of diamond products manu- factured at Boart Longyear, the company has implemented an innovative new production process designed to yield more consistent, reproducible segments for cutting and drilling, as well as beads for diamond-wire... →

Canada keen on SA water drill

By: System Author 9th April 1999 Locally and internationally, interest is being shown in using water power to drill in underground mines, Sulzer Hydromining manager Ulrich Kienle tells Mining Weekly. Locally, Northam, Kloof and Tau Lekoa mines have embraced the hydropower concept, with many others initiating smaller pilot... →

Drilling company makes an impact

By: System Author 26th March 1999 Newly-formed contract drilling company Ibora Drilling is engaged in drilling operations in Maputo mainly for the extraction of suitable-grade rock for construction of the road network for the Mozal Aluminium smelter, a deal said to be in the high seven-digit bracket. The Nelspruit company has... →

Drilling contract progresses

By: System Author 26th March 1999 An estimated R6-million exploration contract at Anglogold’s Fochville drilling project in the North West Province by wholly-owned Anglo American subsidiary Boart Longyear is clocking up significant progress. Mining Weekly has learnt that one of the two deep-hole sites is on track for... →

Ventilation shaft drilling work begins

By: System Author 26th March 1999 DRILLING of the 380-mm-diameter 965-m-deep pilot hole for the Impala No 1 ventilation shaft has been started by raiseboring contractor Rucbor. The contract, to construct the 5,1-m-diameter 965-m-deep ventilation shaft, was awarded to Rucbor following its proposal to use its well-proved... →

Drilling revolution

By: System Author 19th March 1999 Sulzer has introduced a revolutionary new water-powered drill, which is a major advance on its own turbodrill. To date, Sulzer has more than 1 300 of the old-style heavy 33 kg turbodrills operating in the field and is working on an order for 150 new-generation light 24 kg drills, which are... →

12 years life in Cyril’s new mine

By: System Author 12th March 1999 The R90-million investment by Petmin to acquire the flood-prone Grootvlei and Consolidated Modderfontein gold mines from Harmony will not drown the company in undulating profits, or financial loss. Petmin MD Fourie du Preez tells Mining Weekly that, although flooding is still a problem on this... →

Mining contract outsourced at R220m a year

By: System Author 12th March 1999 A R220-million-a-year mining contract involving all six shafts has been awarded to Samat Exploration by the new owners of President Steyn Gold Mine. The core business of Samat is contract mining, with activities ranging through development, production mining and installation of infrastructural... →

The golden triangle

By: System Author 12th March 1999 Shafts seven, nine and three form the golden triangle in which mined, partly-mined and virgin ground is poised to thrust the company well into the new millennium. Drilling is under way there to confirm the expectation of 20 years more mining at a grade of 9 g/t. Indications are good, with a... →

Outsourcing increases

By: System Author 5th March 1999 Mining houses in Africa are turning to outsourcing for professional, specialised skills and this will increase dramatically in the near future to include ‘bread-and-butter’ work, such as stoping and development, reveals Cementation Mining MD Alastair Douglas. “Outsourcing is the... →

Rock-drill maker

By: Archivist 29th January 1999 Rock-drilling tool manufacturer Interoc, of Springs, has embarked on a multimillion-rand expansion drive to streamline its manufacturing processes and reduce its production lead times. Plans involve investing an average of R3-million to R4-million a year in its information technology (IT) and... →

Big enough

By: Archivist 29th January 1999 The South Deep shaft, now being sunk, has been designed with a wide 9 m diameter in order to allow the passage of large equipment, permitting trackless vehicles to be driven into the cage, lowered underground, driven into the mine and maintained in subterranean workshops – unlike at... →

South Deep slows from 6 m a day to 3,5 m a day

By: Archivist 29th January 1999 At one stage the South Deep shaft was being sunk at a rate of six metres a day. However, the development rate has slowed because it has reached the area close to the reef horizon where the shaft pillar has been mined out. Says Western Areas MD John Brownrigg: “We are approaching the... →

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