![]() The need to prevent unnecessary wear and tear on hydraulic breakers used to excavate rock tunnels is the driver behind Atlas Copco’s latest innovation, on show at Bauma for the first time. Latest rotary rig features on Soilmec standĪtlas Copco’s new breaker ventilation system ![]() The other Es are: essentials, ergonomy, ecology and evolution.Įssentials reflects a back to basics approach and/or an initial focus on identifying basic principles, including safety criteria and compliance with standards, while ergonomy is the quest for greater user-friendliness and advanced health and safety standards, as demonstrated by a new bitumen sprayer that can be operated entirely from the front of the machine, so no one has to be at the back near the hot bitumen.Įcology focuses on protecting the environment, for example using an “eco mode” engine management system that uses 20% less fuel, while evolution reflects the need to develop machines that are adapted to the needs of their era and evolve according to technical demands and available technologies. ![]() The polygonal drum, which is made up of individual, angled plates, enables compaction forces to be directed vertically into the material with no loss of vibration energy.īomag parent company Fayat is hailing the BW332 as an example of an “economical” solution − one of the five “Es” in its new “Think” campaign, aimed at refocusing development priorities in the light of the recession and changing markets. However, if soils can be compacted insitu to a depth of 4m using a single drum roller, these methods may not be necessary on many jobs.īomag has designed a polygonal drum for the BW332 because it says a conventional smooth roller drum would be overwhelmed by the immense forces being generated, the drum would sink, and vibration energy would be dissipated at the surface. On earthworks for roads, the existing subsoil often has to be removed, stored temporarily and then relaid and compacted in layers to ensure it can take the loads imposed on it without settlement.Īlternatively, expensive methods of stabilisation or slow surcharging techniques can be used. It’s a multipurpose vehicle and it works in a lot of applications, so we can get a lot of experience of how it’s working.” Simon Saunders, Komatsu group manager for crawler products, says: “We introduced it on the PC210 because that’s our highest volume machine. The machine is based on Komatsu’s popular PC210 multi-purpose excavator. It uses an energy recovery system based on the machine’s slewing action: a high-power capacitor stores the energy that is generated during slew operations and then releases that energy to power the excavator’s hydraulics and to assist the engine when it accelerates under work load conditions. The PC200-8 excavator was the world’s first piece of genuine hybrid construction equipment to go into production and has been shown to reduce fuel consumption by between 25% and 40%, depending on the application. But it could be a year before the machine goes on sale in the EU, as the firm has not yet received confirmation that it complies with European regulations. The European construction industry got its first chance to see Komatsu’s hybrid excavator at Bauma, almost two years after it launched in Japan. ![]() Margo Cole picks out the best of Europe’s largest plant show Hybrid Komatsu excavator unveiled in Europe A whole raft of new construction equipment went on show at last month’s Bauma exhibition in Munich.
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