Shining performance leads to Tanzania export order

Shining performance leads to Tanzania export order

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 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 Williamson mine in Tanzania’s Shinyanga Province. This latest order reflects our client’s confidence in our products’ quality and performance.”

Other Petra Diamonds mines where Osborn equipment has been operating successfully 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 mine’s production capacity from 188 465 carats per annum (ctpa) in the 2014 financial year  (FY) to approximately 300 000 ctpa 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 metres at its deepest point due to the vast size of the deposit. The Mwadui kimberlite pipe, on which the Williamson mine is based, contains a substantial diamond resource of approximately 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, Slade reports.

Outlining the benefits of Osborn’s single toggle crushers, he 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. “As the single toggle crusher will achieve far higher capacities than the double toggle design, they are often used as a primary crusher. The Osborn Telsmith Single Toggle Jaw Crushers offer a production capacity up to 1 000 tph and boast rock compressive strength up to 500 MPa. They feature a patented hydraulic beam locking system and excellent nip angle, with reversible jaw dies, for maximum wear.”

With one of the largest and most modern facilities in South Africa, Osborn also offers installation, commissioning, spares, reconditioning and after-sales service.

Osborn’s range of jaw crushers complement the wide range of mills, screens, apron feeders, gyrasphere cone crushers, feeders, scrubbers and idlers supplied by the company.