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Magna-Matic Lawn Mower Blade Balancers, Sharpeners, and more

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Old 05-18-2005, 07:33 AM
Shady Brook's Avatar
Shady Brook Shady Brook is offline
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Join Date: Aug 2001
Location: Indiana
Posts: 1,517
Which grinding wheel for a replacment?

I have a Mag 9000 and it has been outstanding. I am getting to the point where I think I may need a replacment wheel. Which wheel came on the unit, and would there be any benifit in changing to another wheel hardness? A lesson on the different wheels you offer would be great.

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Old 05-20-2005, 12:35 PM
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Magna-Matic Magna-Matic is offline
Join Date: Jul 2001
Location: Waldo, Wisconsin
Posts: 811

The wheel that came on your machine was an "I" hardness, it is the softest wheel we currently carry. The hardness of a wheel will change the performance of the grinder.

A very general comparison is:

Soft wheel = fast sharpening & shorter wheel life
Hard wheel = slow sharpening & longer wheel life.

As you make the wheel harder, it breaks down more slowly, retaining heat, and cutting slower. A harder wheel will burn the blade more easily because it can glaze over with steel. This is the problem with bench grinders and angle grinders.

The "I" is hands down the fastest wheel we carry at the moment, but the "J" offers good performance with better life.

The choice of wheel is the choice between: labor time to wheel life. In other words would you rather get the job done faster (less labor time) or have longer wheel life.

Thank you,
Gerd Ferdinand Bauer II

Magna-Matic Corporation
Waldo WI USA
800-328-1110 (toll free USA & Canda)
920-564-2366 (PHONE)
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