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Search Results - March 2011

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Geological Info at the Click of a Button

News
Geological info at click of a button

Information about Australia's geology can now be accessed at the click of a button - courtesy of a collaborative effort between CSIRO, AuScope and research organisations around the country. Read more »
The second 220m long spillway required the T1255 to remove very hard rock, up to 150MPa.

Crushing
Terrain leveller chops rocks and costs

A massive rock excavation machine has played a pivotal role in building new spillways at a large dam in regional New South Wales. Read more »
The A40F is fitted with fully hydraulic brakes and dry discs on all wheels, a hydraulic retarder and compression brake and exhaust retarder.

Load & Haul
Dump truck range redefines articulated hauler market

Encompassing the 24-tonne A25F up to the 39-tonne A40F, Volvo has launched its new F-series of articulated haulers, featuring improvements in functionality, design and maintenance. Read more »

Editor's Desk
Elements bring Australians, New Zealanders closer together

The classical Greek elements were thrown at Antipodeans over the summer – flooding of Australia’s eastern seaboard, cyclones in the north, bushfires in the west and the earthquake which devastated Christchurch in February. Read more »
Interstate 70 through Glenwood Canyon, Colorado, part of the US Interstate system.

Geology
H is for highway

In his continuing A-Z of quarrying terms, Bill Langer provides a potted history of the US highway system. Read more »
Scanning from the beach at Port Campbell was only possible at low tide.

Other
Cliff erosion studies support the tourist industry

The Maptek I-Site 8800 laser scanner has been used to develop a detailed model to assess the geotechnical features of one of Australia’s most famous stretches of coastline. Read more »
Figure 1. The quarry footprint was reduced due to environmental standoffs, approvals and predicted impacts on encroaching houses.

Other
Practical management of development constraints at Redlynch Quarry

Quarry development requires balancing competing constraints. Travis Potts explains how Boral has used its experience at Redlynch Quarry to practically plan for and manage limitations at its other quarry sites. Read more »
A chain service life varies from 5000 hours in abrasive granite to 32,000 hours in limestone.

Load & Haul
Tyre chains important link in supplier support

With continuing growth in the quarry and mining sectors, site managers are demanding a higher level of support from their suppliers in the pursuit of more profitable productivity. Read more »
A Hitachi ZW-310 wheel loader was fitted with Duratough 26.5 R25 ETLT Super E3 tyres on the front axle. Working a 20-hour day, the tyres have achieved 6000 hours.

Other
Durable Earthmover brand undergoes rigorous testing

Australian supplier Bearcat Tyres has introduced the new range of Duratough radial earthmover tyres to the Australian quarrying industry. Read more »
Checking inflation pressure on a tyre is equivalent to checking your own blood pressure – it’s a very quick and efficient snapshot of a tyre’s general health, just as blood pressure is for humans.

Other
Correct tyre inflation critical to your tyres

Under-inflation on heavy equipment off-the-road radial tyres is the single biggest cause of premature tyre failure. Denis Clark explains why. Read more »
The Sandvik 85HP rotor was fitted to a mobile VSI crushing plant with no modifications to the crusher.

Crushing
Crushing contractor benefits from rotor retrofit

Problems meeting a production schedule lead to the successful adoption of a Sandvik rotor and wear parts by a major UK-based crushing contractor. Read more »
The new HP4 cone crusher efficiently reduces the material size to obtain the four final products sizes required by the customer.

Crushing
Optimisation minimises production costs

Just beyond the historical Spanish city of Toledo, a high-profile, family-run operation has witnessed drastic changes during a 70-year history. Read more »
A 980H wheel loader fills a Kenworth 404 SAR truck and Superdog.

Crushing
Family company bloods Impact Crusher

A small family owned company, St Helens Quarries, puts Tasmania’s first Metso LT1213S impact crusher/recycler through its paces. Read more »
After Tasmania Mines took delivery of the Mobirex MR 122 Z, production levels increased to 150 per cent of the previous equipment’s output.

Crushing
Tracked impact crusher processes magnetite, scheelite

Since engineers from Tasmania Mines and Wirtgen Australia trialled the Kleemann Mobirex MR 122 Z tracked impact crusher at its mine site in July 2010, production levels increased by 100 to 150 per cent of the previous equipment’s output. Read more »
 The 135-tonne TC1885 track-mounted cone crusher is currently operating out of Delta’s Sunshine plant in Melbourne.

Crushing
Recycling business acquires monster mobile cone crusher

Melbourne-based demolition and civil infrastructure company Delta Group has leased a monster mobile cone crusher from mining and quarrying equipment specialist Screening and Crushing Solutions (SCS). Read more »

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