Ausgabe zur INNOTRANS 2018

SPENO INTERNATIONAL speno.ch Hall 26 | Booth 104 Requirements for rail profiles and reprofil- ing periodicity from Railways and Metros are becoming more specific, s ince they take into account more factors like the type of traffic and the local rail conditions. Moreover, the track environment (tunnels, urban areas, type of track on ballast or not) require tailored solutions. Rail reprofiling can be executed by means of different techniques. Grinding and milling are the most com- monly applied. Even though Speno has so far built almost 300 rail grinding trains, It has become a logical development to add milling to the Speno toolkit. The very first Speno miller, namely the (UIC gauge) MRR 600, was manufactured in 2017. A smaller gauge MRR 400 will be avail- able soon. While grinding offers high productivity and ample exibility in terms of achieving the required metal removal and varying target rail pro les, milling offers other advantages mostly related to a reduced environmental impact. In the last few years, however, milling was mostly perceived as a corrective mainte- nance operation for deep cuts into the rail head, to reduce or remove already signi cant contact fatigue cracks, while it is now generally accepted that rail maintenance has to be done preventively to maximise the rail life and return on investment. Infrastructure Managers, more and more aware of the bene ts inherent in a pre- ventive maintenance regime, have been looking for a milling tool to be operated for cuts of typically 0.2 to 0.4 mm metal removal. That is the reason why Speno has devel- oped its MRR family of preventive millers, but which can also be used in multi-pass mode for targeted corrective work. Another important advantage of the MRR milling technology is the excellent rip- ple-free rail nish, making any additional nish by grinding unnecessary. The MRR preventive millers come with the state-of-the–art Speno measurement solutions including: – Rotating Eddy-current sensor for the detection of head-checks and spalling – Rail pro le optical measurement – Longitudinal pro le measurement – Metal removal optical measurement – Continuous track-gauge measurement. The rst MRR 600 is fully integrated into the eet of machines operated and main- tained by experienced Speno staff. A new reliable, safe and innovative repro- ling tool is now available and Speno has committed to dedicate its best resources to support the introduction of the MRR family. Speno adds preventive milling to its eet Rail repro ling and controlling contact fatigue crack growth are today considered as key maintenance issues for modern Railways and Metros across the ve continents. Speno is dedicated to these safety-critical tasks and, actually, they are the core business of Speno, where the Company is world leader. Anzeige