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Mining Services News

Where underground meets opencast

By: System Author     23rd April 1999 As the underground and opencast ores have two separate flotation characteristics, the ores will be crushed separately and stored in two separate silos ahead of the dense-media separator (DMS). The separate crushed products will be blended on to the main conveyor to the DMS, which is designed to... 

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... 

Costs plummet with used equipment

By: System Author     9th April 1999 Previously-used equipment, including vertical-transport machinery, can be as good as new equipment, provided it is inspected and refurbished to meet quality and safety standards, argues Man-hattan Mining Equipment Supplier MD Chris Pouroullis. By taking the risk out of pre-owned equipment and... 

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... 

SA mixes it at last in real gold market

By: System Author     2nd April 1999 The problem with many South Africans is that they view the local gold-mining industry purely from a production point of view. What is often overlooked and poorly understood is one of its most exciting aspects; gold banking, which serves as a vital intermediary between South African domiciled gold... 

South Africa’s new golden soap – does it really wash?

By: System Author     2nd April 1999 There is a quiet revolution taking place in the corridors of the SABC’s Henley Studios, in Auckland Park, where the daily soap opera, Isidingo – The Need, is shot. It takes the form of whizz-kid mine manager Derek Nyati, played by Hlomla Dandala, who is unlike any character to have... 

Gap for SA in Peru copper

By: System Author     2nd April 1999 At the beginning of last month one of the world’s top ten privately-owned copper producers completed the first element of a US$1,25-billion expansion and modernisation programme. The company is the American-owned Southern Peru Copper Corporation (SPCC), and the commissioning of the... 

Size DOES count!

By: System Author     26th March 1999 In geographical areas with abundant soft coal or lignite deposits, this fossil fuel is mined on a very large scale – on the order of several hundred million tons a year in Germany alone, explains Hartmut Schimkat of Siemens. To cope with the enormous quantities of waste sand that must be... 

Another platinum crown

By: System Author     26th March 1999 After the stock market crash in June last year nearly crushed the plans by Kroondal Platinum Mines (KPM) to establish its first platinum-mining operation, the R311-million project is on track to start full production in January 2000. KPM hosted a visit to the site earlier this month, at which... 

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... 

R80m opencast-mining contract

By: System Author     26th March 1999 MINING company and Concor Roads division Concor Opencast Mining has been awarded a contract worth R80-million from Amplats for the opencast mining operations at the Bafokeng Rasimone Platinum Mine near Rustenburg. The three-year contract calls for the company to handle all opencast operations,... 

Refurbishing crushes price

By: System Author     26th March 1999 A R500 000 contract for a refurbished crushing and screening plant placed by the Hillside Aluminium Smelter in Richards Bay, Kwazulu-Natal, was awarded in September 1998 and completed in three months. The contract was undertaken by Brakpan, Gauteng, company Manhattan Mining, and procurement... 

Local ADT firm a whizz in Oz

By: System Author     26th March 1999 In a big coup for exports, South African company Bell Equipment has emerged as the frontrunner in the sale of articulated dump-trucks (ADTs) in Australia by securing a massive 39% of the market. Newly-released sales figures for 1998 show a remarkable leap from the previous year’s 20%... 

New mining truck drives in

By: System Author     26th March 1999 A novel range of mining trucks in the 190 t to 327 t range has been launched by Liebherr. The T282 was launched in October in the US, and is the first diesel-electric ac-drive haul truck, featuring a payload capacity of 327 t and two independently-operating axles. The ac drive allows easy... 

Making a case for innovation

By: System Author     26th March 1999 Refinements and innovations in its earthmoving equipment range are providing a solution to the ‘cost per ton’ question for alluvial diamond diggers in the North West Province, says CSE Equipment divisional director Rod Watson. The company has been supplying independent alluvial... 

Latest-model wheel loader

By: System Author     26th March 1999 The latest-model granite-specification and standard Komatsu loader in the 43-t-plus class has been introduced locally by Komatsu Southern Africa. The new machine, the WA600-3, replaces the widely-used and well-proved WA600-1, the standard version of which is mainly used for loading in open-pit... 

R57m access tunnelling contract

By: System Author     26th March 1999 A R57-million primary-access tunnelling contract has been awarded to RUC Mining Contracting Company by Anglogold. The contract comprises 12 km of twin-end tunnelling on 105 level, about 2 300 m below surface at Anglogold’s Elandsrand mine near Carletonville. The contract was awarded based... 

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... 

Component-maker in revamp

By: System Author     12th March 1999 Local earthmoving equipment and component remanufacturer Komatsu Rebuild Centre, of Isando, Gauteng, has celebrated its own revamp. Komatsu Reman, as it will now be known, will operate as an independent business unit under GM Taizo Shiono. The renovated centre, the only remanufacturer in the... 

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... 

Technology to revolutionise South African milling circuits

By: System Author     5th March 1999 A NEW screening technology has been developed by local company Particle Separation Systems to assist with the accurate screening of mineral particles. The pansep screen is a unique screening device that screens large quanities of particles and is helping mines to improve throughput as well as... 

Gold semis by June

By: System Author     26th February 1999 Production of semi-fabricated gold items by Rand Refinery is expected to start during the first half of this year. The refinery’s initiative to produce semi-fabricated jewellery products (semis) is set to boost the capacity of the local jewellery-manufacturing industry and open up... 

New platinum toll-treater

By: System Author     26th February 1999 A new company has been formed in South Africa which specialises in toll- treating material for platinum-group metal (PGM) producers and recyclers, Mining Weekly can today report. The newly-launched Impala Refining Services, headed by Implats consulting engineer: new business Stuart Murray,... 

Fluid coupling refurbishment technology for South Africa

By: System Author     26th February 1999 In June last year, Stratford Engineering converted type SCR25 scoop-type fluid couplings into new free-standing SCR26 models at Richards Bay Coal Terminal, Kwazulu-Natal. “This is the first time that such a conversion has been done outside Europe,” reports Stratford Engineering... 

Gold firm sticks to mining – for the time being

By: System Author     12th February 1999 No further downstream diversification to produce more value-added gold products is planned for the near future by Harmony Gold Mining of the Free State, Mining Weekly can today report. The company made headlines when it moved downstream by first commissioning its own refinery and then launching... 

BIGGEST ball mill in SA

By: System Author     12th February 1999 A contract from Amplats Management Services to increase the processing capacity of the concentrator at the Potgietersrust Platinum Mine in the Northern Province from 270 000 t/m to 425 000 t/m has been completed by Bateman Minerals & Industrial. The project involved installing primary and... 

Division tackles alloy research

By: System Author     5th February 1999 Research and development (R&D) of platinum-group metal (PGM) alloys and products is conducted by Mintek’s physical metallurgy division in collaboration with PGM producers in South Africa. The jewellery-related platinum products include platigems, novel platinum-gold composite material, and... 

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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