The novel HD+ 90i PH hybrid tandem roller from Hamm first seen in prototype form is now being offered as a production model. This follows extensive testing of the hydraulic hybrid package in onsite conditions in various countries. The drive system for this 9tonne compactor combines a conventional diesel with a hydraulic accumulator package. The diesel engine provides most of the power for driving the machine, with the hydraulic accumulator then supplying peak power requirements. The system offers
Research by Morgan State University in the US using linked up driving and cycling simulators could help with safer urban road designs for both drivers and cyclists.
Independent tests are showing the benefits of the latest geosynthetics developments. Geosynthetics specialist Tensar has commissioned independent tests to prove the capabilities of its innovative TriAx product, which has set a lead in the field.
The Wirtgen Group has held a highly successful Technology Days event at the brand new Kleemann facility in Göppingen near Stuttgart. Some 2,600 people attended this year's event, the largest of the three held so far by the firm. A key focus for this year was highlighting the full integration of the Kleemann crushing equipment operation within the Wirtgen Group. The previous Technology Days events were held at the Hamm facility in Tirschenreuth and at the Wirtgen headquarters in Windhagen.
Following the Kle
