WR 250: the powerhouse shines in acid test
The factory expansion of Hamm AG in the summer of 2012 was a real acid test for the machines of Wirtgen and Hamm; the dimensions were tremendous. The plan was to prepare a 150,000 m² large area, and move around 350,000 m³ of earth in the process – in only three months. Hamm had contracted the Max Bögl Group as the general contractor for the measure.
The focus of the activity was on the brand new bauma specimens, the Wirtgen cold recycler and soil stabilizer and the Hamm H 13i earthmoving compactor with plate compactor attachment. The result: the innovations were convincing with respect to performance, handling and reliability.
Wirtgen WR 250 masters heavy soil effortlessly
The first challenge: the existing gradient had to be smoothed out and an even surface created on the grounds behind the previous factory. The Wirtgen WR 250 was used while excavators removed masses of earth in the upper half to depths of up to 12 m and placed around 50 percent of the material onto the lower lying area. The powerhouse is the highest performance machine of the new WR generation and is specially designed for the stabilizing of heavy and boggy areas.
High daily performances and maximum operating comfort
Using the sensitive multifunction joystick on the right armrest, the machine operator was able to simply and comfortably control all important base functions. Automated processes, such as automatic lowering and raising of the milling and mixing rotor, the ergonomically designed workplace and the innovative reverse assistant also provide enormous relief.
Mobile, glassed-in, large-capacity cab, camera system and 90-degree rotating driver's seat also ensure the best visibility conditions with respect to the machine and construction site.
Hamm rollers reliably compress soil
Behind the soil stabilizer, the H 20i P with padfoot drum first compressed the prepared soil. This was followed by two compactors (H 18i and H 20i) with smooth drums. The final sealing of the new level was carried out with the rubber-wheeled roller GRW 280 in the new version with "i" technology before it was covered with a 20 cm thick frost protection layer. This was compressed with the new H 13i compactor with the plate compactor attachment, one of the three "new models" from the H series, which celebrated its official premier at bauma 2013.
Factory expansion Hamm: Wirtgen Group machines completely convincing
Besides the area in which machines and buildings will find their place in the future, Hamm also enlarged the testing grounds to 30,000 m² with the construction measure. A SUPER 1900-2 from Vögele finally ensured the installation of several asphalt areas.
Also thanks to the good cooperation of the Wirtgen Group machines, the team from Max Bögl was able to complete the construction work on schedule in only five months. With the acid test, the Wirtgen WR 250 and the Hamm H 13i successfully proved their reliability in soil stabilization and compaction. Both devices are among the 29 innovations that the Wirtgen Group will present at bauma 2013.