Solutions for Tier 4 Final emissions regulations dominated Conexpo 2014, with many firms showing off their options of DOC, DPF and SCR after-treatments. Deutz, while staying with an SCR-only solution, took a more unusual approach on its high horsepower V6 12litre and V8 16litre engines. Both get a dual SCR after treatment system to meet Tier 4 Final emission standards.
Solutions for Tier 4 Final emissions regulations dominated Conexpo 2014, with many firms showing off their options of DOC, DPF and SCR after-treatments. Deutz, while staying with an SCR-only solution, took a more unusual approach on its high horsepower V6 12litre and V8 16litre engines. Both get a dual SCR after treatment system to meet Tier 4 Final emission standards.
Materials supplier Tarmac has invested in a Hitachi EX1900-6 ultra-large excavator for its Swinden Quarry in North Yorkshire, England.
The EX1900-6 is used to load up to 1,200 tonnes of carboniferous limestone per hour directly into a 200tonne mobile crusher. A field conveyor takes the material to a secondary crusher at an average rate of 1,000tonnes/hour.
The Hitachi model was supplied with a longer boom and arm, and a smaller 8m³ bucket, customary on a machine of this size. “This is because it needs
Hatz has boosted diesel engine efficiency with an all-new four-cylinder 2litre platform that combines low weight with low fuel consumption and meets Tier 4 Final/Stage IV emissions regulations without the need for a DPF.
Called the 4H50TIC, the new engine uses two-valve cylinder head design to cut frictional losses, while opting for lower injection pressures of 1,800bar to contribute towards improved fuel efficiency.
