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Construction Digger Blog

Mon January 22 2018

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Overground, underground: Cats in the mine

Digger Blogger | 12:09, Wed January 17 2018

There are a couple of interesting technology developments in Caterpillar’s mining division to report – one relating to automation and the other to battery powered machinery.

 

Above ground, Caterpillar and Rio Tinto have signed an agreement for retrofitting 19 Cat 793F mining trucks for autonomous operation at the Marandoo iron ore mine in Western Australia. Caterpillar will also install Cat Command for hauling software for operation of the autonomous fleet. The result of the agreement will be the first fleet of Cat autonomous trucks deployed by Rio Tinto.

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Doe Show moves into 58th year

Digger Blogger | 14:31, Wed January 10 2018

The 58th annual Doe Show takes place on Tuesday 6th, Wednesday 7th and Thursday 8th February 2018 at the Ernest Doe dealership located in Ulting near Maldon in Essex.

The show is billed as the UK's largest construction, agricultural and groundcare dealer show and, according to the Doe team, this year’s event is going to be bigger and better than ever before.

There will be large display areas devoted to machinery from Hyundai, New Holland, Lemken, Great Plains, Manitou, Dal-Bo, Thwaites, Bomag, Atlas Copco and Marshall Trailers.

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Liebherr offers tunnel-spec loaders

Digger Blogger | 11:21, Wed December 13 2017

Liebherr has brought out a tunnelling version of four of its XPower wheeled loader models.

The Liebherr XPower L 550, L 556, L 566 and L 576 wheeled loaders are now available with an optional special tunnel package, including armoured glazing and other protection features to make them more robust underground.

In this version, the special soundproofed cab has ROPS and FOPS protection. For extra reduction of emissions the already Stage IV compliant engine is enhanced with a diesel particle filter.

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PC3000 put to work in Shotton

Digger Blogger | 10:19, Mon December 04 2017

Banks Mining has taken delivery of a 265-tonne Komatsu PC3000-6 face shovel at its Shotton surface mine in Northumberland.

The five-year-old machine was delivered to Shotton by Komatsu Germany subsidiary KMG Warrington from previous owners at Hinkley Point, 350 miles away in Somerset. It was broken down into nine component loads for transport and then reassembled using a pair of mobile cranes. It took a team of three fitters seven days to put it back together and ready to work.

 

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Doosan loader has continuously variable transmission

Digger Blogger | 10:14, Thu November 30 2017

Doosan’s new DL420CVT-5 wheeled loader is the Korean manufacturer’s first to be equipped with a continuously variable transmission.

A continuously variable transmission, or CVT, is composed of a hydraulic motor combined with a hydraulic pump that provides smooth and continuous speed variation.

The CVT design combines the benefits of a mechanical transmission and a hydrostatic transmission in the same machine. It allows the DL420CVT-5 to automatically transition from hydrostatic power at low speed to the mechanical system at higher speeds.

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