Monday, June 24, 2019

Tyre technology helps reduce soil compaction

June 3, 2019 by  
Filed under Machinery

Continental has launched a range of new agricultural tyres to help reduce the impact of heavy machinery on the soil.

The tyres contain two forms of new technology applied by Continental to agriculture tyres for the first time. It includes using a single wire to construct the bead which helps the tyre hold the rim of the wheel – enabling it to hold its shape, even at very low pressures.

Many agricultural tyres use as many as ten individual wires to create one bead. But multiple joins in the bead can cause weaknesses and there is a risk that the tyre can detach from the rim, especially when inflated to a low pressure.

Continental has so far applied this technology to combine harvester tyres and tyres suitable for tractors in the up to 200hp sector. Currently tractor tyres are offered in 65, 70 and 85 series from 24 inches to 42 inches and combine harvester tyres are offered at 32 inches.

Continental agricultural tyre specialist Richard Hutchins says: “The bead is as important as the rubber and nylon in a tyre. Our research showed a more flexible tyre with a stronger single bead construction can be run at a lower pressure which helps to reduce soil compaction.”

Tyres with a single wire bead are safer and quicker to fit, hold the rim better and transfer torque more efficiently which reduces slippage, especially on wet ground. Most importantly the tyre will grip the rim even at very low pressures – helping to protect the soil beneath.

A second technology, known as N-Flex, comprises heat-treated nylon beneath the rubber to help the tyre return to its original shape following impacts and heavy use. This reduces the occurrence of flat spots and provides a more comfortable ride, says Mr Hutchins.

“Not using the correct pressure is a major cause of soil compaction. It also damages the tyre, lowers work rates and increases fuel consumption. Tyre technology needs to continually develop to help farmers react to government pressures and environmental concerns about soil health.”

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