Efficient mobile crushing

A crushing and screening system comprising Sandvik mobile machines is proving useful on a project in Brazil. Construction work on the BR-222 highway in the city of Irauçuba, in the Ceará state close to the equator in the northeast of Brazil is benefiting from a fleet of Sandvik crushing and screening units. The mobile machines in use include a QA450 triple deck screener, QH330 cone crusher and QJ340 jaw crusher. The project involves upgrading the BR-222 highway, which joins the cities of Fortaleza and Sobra
February 22, 2012 Read time: 2 mins
A crushing and screening system comprising 325 Sandvik mobile machines is proving useful on a project in Brazil. Construction work on the BR-222 highway in the city of Irauçuba, in the Ceará state close to the equator in the northeast of Brazil is benefiting from a fleet of Sandvik crushing and screening units. The mobile machines in use include a QA450 triple deck screener, QH330 cone crusher and QJ340 jaw crusher. The project involves upgrading the BR-222 highway, which joins the cities of Fortaleza and Sobral. 2984 Baltt Empreiteira Transportes e Terraplenagem and contractor 2985 CAMTER which is hiring the equipment from Baltt, are pioneering the use of this crusher and screener set up in Brazil.

The machines are being used to process granite and the blasted 600mm material is first processed by the Sandvik QJ340 jaw crusher, which produces a high flow rate into the Sandvik QH330 cone crusher. This is set with a 28mm CSS position, reducing material from 100-25mm and the material processed by the unit's CH430 cone crusher. Finally, the QA450 triple deck double-screen produces -6, 6-12, 12-19 and +19 mm final products at a rate of 160tonnes/hour. The length and design of the four conveyors, allows a stockpiling capacity of over 5m and the possibility for it to be used in a recirculation mode with the QH330, potentially boosting product quality even higher. Baltt bought the equipment from Sandvik's Santa Catarina dealer, Jok´s Equipamentos para Mineração, which provides back-up.
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