What is the difference between belt grind and stone grind?

Stone Grinding Skis and Snowboards

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The machines we use at Stick Docs to tune up your skis and snowboards have two sides to them. The belt grinder which is used primarily in to tune the base edges is on one side. The stone grinder which is used to remove polyethylene from the base to make it flat and to structure the base for the appropriate snow conditions is on the other side of the tuning machine.

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By using the stone instead of the belt to get the base flat, we can do several things. The stone cuts the material from the base so there are no trailing fibers as one might find using a belt grinder, and the base is left flat instead of concave as with a belt grind.

The stone grind is much more efficient at removing the polyethylene so fewer passes through the machine can be made. This prolongs the livelihood of the ski and snowboard base for many winter seasons.

Originally Posted by

Newbie here with my thoughts... If you see a shop with sparks coming off the back of their stone when they're grinding turn around and walk out.

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