What is relief grinding?
Relief grinding removes metal from the trailing edge of the blade forming an angle (relief angle) to reduce the contact area of the cutting edges. This reduces blade area resulting in less friction.
So why relief grind?
- Ensures longer wearing life of the parts.
- Less time required to back-lap.
- Reduce pressure to cutting surfaces resulting in less hydraulic power required, lower engine load and fuel usage.
- Reduces squeezing and tearing of teh grass as the units gets dull by use.
Can I just have a spin grind?
Yes, of course!
Every cutting unit service requirement is different and depends on the application. A mower cutting rough grass for a local authority will clearly have a different grinding and set-up to one that is mowing a tee on a golf course.
A spin grind takes less time, therefore costs less money, whilst still giving the cutting surfaces a freshen up and can be done without stripping the cutting unit down.