Mitas to exhibit new agricultural tyres at Cereals 2012
Mitas Tyres Ltd will exhibit two new tyres, the HC70 and AC70T, and the Continental SVT CHO (Cyclic Harvesting Operation) harvester tyre on its stand at Cereals 2012. The HC70 is an adaptable 70 series tyre designed for use on 90hp to 180hp tractors. The AC70T has deeper lugs, making it suitable for heavy field work. The show will take place at Boothby Graffoe, Lincolnshire on 13 and 14 June.
The HC70 “three-in-one” 70 series tyre offers higher load and carrying capacity than is normally available in the 70 series segment at the same inflation pressure, the company says. Mitas claims tyre pressure can be reduced by 25 per cent (0.3 bar) whilst supporting the same load. The tyre has larger contact patch that reduce soil compaction and traction is increased because more tread lugs interlock with the ground. This also helps to reduce wheel slip and fuel consumption.
The load on an HC70 can be increased by up to 14 per cent for on-road use too, whilst retaining the same inflation pressure. The combination of modern tread pattern, optimised tread contour and increased tread contact area minimises disturbance to the soil surface, reduces tyre wear and extends operating life, as well as improving stability, comfort and safety on the road.
Ron Wood, automotive engineering manager for Mitas Tyres Ltd, says that the HC70 fits into the Mitas range between the standard 85 Series profile and 65 Series range, the widest-available standard tyre. 70 Series tyres enable farmers to benefit from greater traction, load carrying capacity and lower inflation pressures, without having the additional expense of fitting wider rims which are required to accommodate 65 Series tyres.
AC70T for greater traction in heavy field
The second new tyre being displayed, the AC70T, is particularly well suited to heavy field work. Mitas says the tyre’s deep lugs offer a greater depth of tread than many other tyres on the market, giving greater traction, particularly in heavy clay soils, together with outstanding self-cleaning properties due to the greater inter-lug spacing.
The Continental 800/70 R32 175A8 CHO SVT, which is based on the company’s Super Volume Tyre (SVT) technology, responds to the trend of equipping modern combines with wider headers and larger grain tanks, which increase weight and ground pressure. Th tyre’s launch was originally reported back in January.
The design of the Continental 800/70 R32 175A8 CHO SVT allows greater deflection of the sidewalls, thereby increasing the ground contact area by up to 24 per cent and reducing the ground bearing pressure. Mitas says that users of the new tyre will be able to carry an increased front axle load – up to 21.5 tonnes – at an inflation pressure of 1.6 bar during cyclic harvesting operations, a 31 per cent advantage.
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- Designed to ‘solve a conflict’ – Mitas’ Continental CHO tyre
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