This is how it works
The discs mounted on the flywheel have a fully sharpened circumference, only about a 1/3 of the cutting edge on each disc is in use at any one time. The rest of the cutting circumference is kept in reserve. The blades can be rotated to the next sharp section when the edge goes off giving less down time and a longer period between sharpenings, than if using conventional flat blades or flail systems.
In simple terms you'll get 600% more blade life. One operator kept records of his Disc Blade performance which showed that the Disc Blades were not resharpened until they had completed 150 - 170 hours work. He calculates that the life expectancy of the blade should be in excess of 1200 hours. By comparison he found that conventional blades needed sharpening every 23 - 50 hours and needed replacing every 200 hours if not damaged earlier. This operator calculates that disc blades have saved him £1000 a year over conventional flat blades.
When the inuse section of a Disc Blade edge has gone off and needs sharpening there is no need for it to be removed from the machine. The retaining nut on the Disc Blade is slackened and the blade turned 120 degrees to the next sharp section, then retighten the Disc Blade to the correct torque setting. The machine is then ready to give you another 50-100 hours of cutting before the blade is rotated again or eventually taken off for complete resharpening.
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