Construction News

Tue September 29 2020

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Cumbrian quarry puts Case pair to work

1 Sep 11 Slate and stone producer Burlington Stone has added a Case CX470B crawler excavator and a 921E wheeled loader to the equipment fleet at its Kirkby-in-Furness quarry in Cumbria.

Case CX470B crawler excavator at work
Case CX470B crawler excavator at work

The 921E replaces an older Case loader, while the heavy duty excavator is a new addition to the firm’s fleet.

Both machines are used at the quarry face, where the slate is drilled, cut into blocks by wire saws and removed for transportation to secondary cutting facilities on site. This high grade material is then sold as roofing slate and as architectural stone for construction and building use. Burlington slate is used for floor tiles, flagstones, stone cladding and for individual design projects.

All of the wheeled loaders at the site, one of seven quarries that the company operates within the Lake District National Park, have been supplied by local Case dealer Dennis Barnfield. Burlington relies on the dealer for initial service work during the warranty period and for spare parts supply throughout the machines’ working life. The company’s own full maintenance crew handles service and repair work within the quarries.

“We buy Case equipment for its reliability and for the good service that we get from Barnfield,” said Burlington managing director Rob Irwin.

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“We generally tend to run our machines for about 10 years, so we get the best of the first life out of the equipment. The machines are easy to operate and to service, and they represent good value for money.”

Both machines have been supplied in standard specification, although the CX470B is equipped with a full FOPS protective structure. Weighing just above 47t, the CX470B is powered by a 362hp (270kW) engine. In standard trim, bucket breakout force is 247kN and swing torque is 150kN.

The 921E loading shovel weighs in at just under 30t. With a 274hp (204kW) engine, the machine has a straight tipping load of 19,420kg and a lift capacity of 13,450kg. Limited slip differentials in both axles help boost digging power and productivity.

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MPU

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