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In an enormous, two story outdoor exhibition space at Bauma, Wirtgen has tucked away several new machines and innovative technologies.
Wirtgen cut its teeth in grinding and milling machines before acquiring compaction equipment manufacturer Hamm. Now they’ve cleverly combined the basic design of a concrete/asphalt milling drum with a vibrating roller to create a “crusher drum” that destroys the material underfoot while on the move.
The combination is on display at Bauma in the new H 25i VC compactor with crusher drum.
The applications the company claims for this hybrid technology include breaking or pre-crushing rock, breaking up concrete road surfaces, crushing and compacting mixed soils, compacting cohesive soils and compacting during cold recycling, and stabilization.
The crusher drum uses the same bits as a milling machine but because the drum vibrates it can destroy the material with a maximum point load of 50 tons of compaction force.
Wirtgen has also extended its oscillating compactor drum to the smaller sizes of Hamm rollers.
The oscillation motion of the drum compacts asphalt with a fore and aft vibratory motion rather than an up and down oscillation. This reduces the possibility of damaging surrounding structures with excessive vibration to the ground and kneads the asphalt for a more consistent density.
Kleeman, a recently acquired division of Wirtgen also had on display a new Mobicat 110Z mobile jaw crusher. The new machine can process up to 300 tons per hour and runs on a 333 hp engine.Hamm VC compactor with crusher drum and a Hamm innovation