Modern Mining February 2015

PRODUCT News

Osborn equipment for Williamson mine

An R8-million export order for two Osborn Telsmith 36 x 48 single toggle jaw crushers and an apron feeder – to be employed at Petra Diamonds’ Williamson mine in Tanzania – has been awarded to Osborn. This is the latest in a series of orders that the Johannesburg- based manufacturer has received

The Osborn apron feeder destined for Tanzania.

Torre Industries is adding Elephant Lifting Equipment to the Plant and Equipment Division of its group of companies, along with SA French, Manhand and Kanu Equipment. The ultimate aim is to combine SA French and Elephant Lifting Equipment under the umbrella brand ‘Torre Heavy Lifting’ which, combined with the extensive distribution network of the Torre group, will allow Torre to offer a total lifting solution from consumables to tower cranes to its customers across Africa. Elephant Lifting Equipment is head- quartered in Centurion and has branches in Durban and Pemba, Mozambique, as well as a manufacturing facility in Pretoria West. Its products include EOT cranes, monorails, from Petra Diamonds. Osborn’s Chris Slade elaborates: “Osborn already has jaw crushers and apron feeders in this application at Petra operations in South Africa, and these have proved themselves over the years. Osborn has also previously supplied an apron feeder to the Williamson mine in Tanzania’s Shinyanga Province. This latest order reflects our cli- ent’s confidence in our products’ quality and performance.” Other Petra Diamonds mines where Osborn equipment has been operating suc- cessfully for many years include Koffiefontein, Finsch and Kimberley. Petra’s new Osborn Telsmith jaw crushers form part of an expansion project aimed at increasing Williamson’s production capacity from 188 465 carats per annum (ct/a) in the 2014 financial year (FY) to approximately 300 000 ct/a by FY 2017. At 146 hectares in size, Williamson is the world’s largest economic kimberlite by surface area. It is Tanzania’s only important diamond producer and, despite having been operated continuously since 1940, the pit is just 90 m at its deepest point due to the vast size of

electric chain hoists, chain and lever blocks, winches and wire rope pulling machines, lift- ing and spreader beams, mechanical grabs and clamps, slings (chain, polyester and steel wire rope), shackles and rigging accessories. “For every tower crane we supply, new or used, there is probably another 20 % of the total value of the crane that we can offer in add-on services,” Quentin Van Breda, Managing Director, SA French, says. “The acquisition will allow us to offer a genuine one-stop shop for tower cranes, from slings to shackles, concrete buckets and pallet forks, for example. We can now even offer foundation “As the single toggle crushers will achieve far higher capacities than the double toggle design, they are often used as primary crush- ers,” he says. “The Osborn Telsmith single toggle jaw crushers offer a production capac- ity up to 1 000 t/h and boast rock compressive strength up to 500 MPa. They feature a pat- ented hydraulic beam locking system and excellent nip angle, with reversible jaw dies, for maximum wear.” Osborn Engineered Products, tel (+27 11) 820-7600 the deposit. The Mwadui kimberlite pipe, on which the Williamson mine is based, contains a substantial diamond resource of approxi- mately 33,1 million carats. The scope of Osborn’s contract includes manufacturing and supplying Williamson’s new jaw crushers, as well as supervising their installation and commissioning. Outlining the benefits of Osborn’s single toggle crushers, Slade notes that they are designed for a high capacity throughput due to the elliptical movement of the swing jaw, which also assists in the discharge of the crushed material.

Torre acquires Elephant Lifting Equipment

bolts and spreader beams in-house.” Torre, SA French Division, tel (+27 11) 822-8782

February 2015  MODERN MINING  43