Orders roll in for Osborn’s Track-Mounted Crushers

Track 3042 track-mounted jaw crusher

Reflecting its reputation as a leading supplier of robust, reliable machines to the quarrying industry, Osborn has secured orders totalling more than R13 million from long-standing customer WG Wearne. Osborn supplied three Track 3042 track-mounted jaw crushers, as well as a 44SBS track-mounted cone crusher.

Launched six years ago with the proud distinction of being South Africa’s first wholly locally-manufactured primary jaw crusher track unit, the Osborn Track 3042 is perfectly suited to the African quarrying industry’s arduous operating conditions.

The Osborn Telsmith 3042 Jaw Crusher on this unit is the most widely used size for primary crushing in South Africa, he adds. It boasts a rugged frame and optimised toggle seat and nip angle, and is diesel-driven with a heavy duty “fluid clutch”. The crusher handles up to 610 mm feed size and can be set to a 65 mm minimum closed side setting depending on the feed size.

“The spares, backup and service support of a local manufacturer is also a significant benefit, and customers are assured that spares and service from Osborn’s trained engineers will be available quickly and easily,” stresses Osborn marketing director Martin Botha.

“In addition, the standard machines and components on the track unit all fit in with Osborn’s standard product offering, to ensure that parts are readily available and supported in the South African market.”

The unit’s electric drive uses a 400 V generator sized to drive the conveyor and feeder, and a 220 V power socket for tools on site. The crusher is directly driven from the engine and the tracks are hydraulically driven. Power is provided by a John Deere 6081HF 8.1 diesel engine rated at 230 kW at 1 500 continuous rpm and generating the highest torque output in its class. The radiator is sized for an ambient temperature of 45 °C.

Hydraulics on the Osborn Track 3042 have been minimised to reduce maintenance. Its hydraulic system has also been sized for a 45 °C ambient temperature and it has no heat-inducing flow control valves. The unit’s tracks have a 500-mm-wide shoe. Its speed range is from 0,3 km/h to 0,8 km/h.

Additional features of the track unit are PLC based plant logic and remote radio control. A range of optional extras is also available – including a cross belt magnet, VGF undersize conveyor with manual hydraulic fold and BTI hydraulic rock breaker boom with full electro hydraulic controls.

The 44SBS track-mounted cone crusher that Osborn supplied to WG Wearne is also wholly designed and manufactured at Osborn’s Elandsfontein factory. Since their launch some three years ago, these mobile, track-mounted cone crushers have been making their mark in the secondary and tertiary crushing markets.

Customers are increasingly recognising the benefits of these high performance, low wearing units, asserts Botha. The 44SBS cone crusher on the mobile unit is highly regarded in the African quarrying industry, he notes. "Customers in the mining and quarrying sectors need to use equipment that works with maximum efficiency and productivity and our SBS cone crushers deliver," Botha says. “Add to the hard-working SBS cone crusher the efficiency and mobility of a track-mount, and you’ve got an unrivalled package,” he enthuses. The Osborn Track Cone unit is available with either the 44SBS Cone Crusher or a 38SBS machine, enabling customers to choose the model best suited to their needs. Designed for general crushing applications - from soft limestone, to dolomite and even hard gabbro – these crushers offer capacities ranging from 150 to 400 tons per hour.

The Osborn Track Cone unit’s discharge conveyor features an impact bed, to minimise belt damage, head adjustment for ease of maintenance and a low-maintenance electric drum motor. A further benefit is that the conveyor is completely removable.

The crusher feed conveyor is hydraulically lifted to ease maintenance on the cone crusher. The heavy duty feed hopper can receive material from a primary crusher.

Of significant benefit to customer WG Wearne, is that both its new units - the jaw and cone crusher mobiles - feature the same primary drive components, for ease of maintenance and to simplify stock holding. The mobile cone crusher is also diesel powered, with the same hard-working John Deere engine that drives the Osborn Track 3042 track-mounted jaw crusher unit. Both machines also feature identical power take-off and fluid clutch assemblies.

“These mobile units, like all Osborn’s robust, high quality machines, represent years of design improvements and experience gleaned from various installations here and around the world. They are set to be valuable additions to our valued customer WG Wearne’s operations,” Botha concludes.