Michelin burning rubber with road-compliant tyre
Published 09/11/2010 | 05:00
French firm Michelin has developed a tyre capable of carrying a large machine such as a combine harvester, while being 15pc narrower than any conventional harvester tyre.
Developed in conjunction with agricultural machinery manufacturer Claas -- one of four sizes available from launch -- the new Michelin CerexBib tyre can help reduce the stress and hassle associated with moving combine harvesters on the road by bringing in their overall width under 3.5m, the measurement above which an escort is required by European law.
The firm states that the pressures of modern farming have driven a requirement for more powerful and wider harvesters to improve productivity.
"Michelin has responded by developing the innovative new CerexBib tyre with Ultraflex technology. Compared to a conventional tyre, CerexBib offers an additional 20pc load capacity for the same pressure, while the reduced tyre width solves a major headache when transporting combines between fields," said Rob Beddis, Michelin's agricultural division head in Britain and Ireland.
Tom Pine, Claas' UK combine product manager, quotes one use: "For example, the new Lexion 750 is already available to order with 680/85 R 32 CerexBib tyres.
"These reduce the overall vehicle width to 3.3m while still delivering a 12pc larger footprint than the normal 800/65 R 32 tyre."
Michelin says the key to achieving this performance advantage is its patented Ultraflex technology. The company claims its CerexBib tyre is the only commercially available harvester tyre which can work at a pressure of less than 2 bar (29psi), which is around 30pc less than conventional tyres.