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Tyres for C yclic H arvesting O peration

www.cgs-tyres.com. Tyres for C yclic H arvesting O peration. Productstory CHO. Actual Situation. Drive wheel tyres of harvesting machines like combines, sugar beet harvesters are subject to total different load conditions. Road transport without header empty grain tank

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Tyres for C yclic H arvesting O peration

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  1. www.cgs-tyres.com Tyres forCyclic Harvesting Operation

  2. Productstory CHO Actual Situation • Drive wheel tyres of harvesting machines like combines, sugar beet harvesters are subject to total different load conditions • Road transport • without header • empty grain tank • speed 20 km/h to 30 km/h • tyre load about 4500 kg • Field application • with header • full grain tank • speed max. 10 km/h • cycl. tyre loads 8000 kg to 12500 kg

  3. Productstory CHO Problem • Extremly different tyre inflation pressures are required Example

  4. Productstory CHO Conclusion • The inflationpressureforfieldapplicationistohigh: • soilcompactionunnecessarilyhigh • Toavoidadjustmentof Inflation pressurebetweenroadandfieldapplicationthedriversusethehigher Inflation pressureforfieldapplcation also forroadapplication • uncomfortableridecomfort on unevensurfaces

  5. Productstory CHO

  6. Productstory CHO Beside track - in track

  7. Productstory CHO

  8. Productstory CHO Soil moisture content Strategies to avoid soil compaction Reduction of Inflation Pressure Susceptibility to compaction extrem not acceptable a wet B b very Dry Soil Condition moist A C c moderately E e dry acceptable not very 50 100 150 200 250 Tyre inflation pressure (kPa)

  9. Productstory CHO Status today

  10. Productstory CHO Wider tyre

  11. Productstory CHO Larger outer diameter

  12. Productstory CHO Target • Develop a tyre concept ensuring • Reduction of inflation pressure for field application at given tyre loads • Inflation pressure for road and field application to be the same or very close together • All other criterias (rims, RCI‘s, tyre dimensions) should be compatible with standard tyres

  13. Productstory CHO Solution • Tyres for • Cyclic Harvesting Operation • CHO

  14. Productstory CHO Solution Size designation: Cyclic Harvesting Operation: 800/70 R 32 CHO 175A8 SVT Standard: 800/70 R 32 175A8 SVT

  15. Productstory CHO

  16. Jump off SHD 680/85 R 32 on customer machine harvest 2007

  17. Productstory CHO SHD 680/85 R 32 Axle load 13.4 to Tyre inflation pressure 1,2 Bar Safety/support wheel 270/80 R 32

  18. Productstory CHO Solution

  19. Productstory CHO 0,4 Bar 0,3 Bar

  20. Productstory CHO IF comparison

  21. Productstory CHO

  22. Productstory CHO Solution • Road Transport • without Header • empty Grain Tank • Speed 20 km/h to 50 km/h • Tire Load about 4500 kg • Field Application • with Header • Full Grain Tank • Speed max. 10 km/h • cycl. Tire Loads 6000 kg to 9500 kg 1,0 Bar 1,0 Bar 0,9 Bar 1,8 Bar 1,3 Bar 1,3 Bar 800/70 R 32 175 A8 Std.: 800/70 R 32 CHO 175A8 SVT: IF 800/70 R 32 182D:

  23. Productstory CHO Footprint Areas 100 % 124 %

  24. Productstory CHO Summary • Significantly reduced soil compaction by much lower inflation pressure • Vehicle width conform to legal requirements • Stabile ride behaviuor in road application even at low inflation pressure • Good ride comfort by low inflation pressure • Mounting on standard rims, no special rim necessary • Improved puncture resistance by STC-belt

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