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Simple alterations can dramatically change the results. Here are a few aspects that can significantly affect the efficiency of a grinding disc, regardless of what type of material is being sanded.
Speed
The maximum operational speed on a grinding disc must not be exceeded. Slower speeds can be equally damaging. KLINGSPOR grinding discs are developed to achieve maximum operational speed and incredible efficiency. This means that this rated speed gives the most stock removal compared with the amount of wheel wear. A lower selected speed considerably affects the discs' working manner because they tend to "jump" or "bounce." This can cause the discs to become uneven in wear, and abrasive grit is torn out of the bonding.
Power
Plenty of power is necessary to maintain a high speed during an operation. In less expensive grinders, motors are designed below proper strength. This usually causes the wheel to slow when pressure is applied to the workpiece. Placing the blame on the grinding disc is a standard error. Sometimes, a disc with a softer bond will solve the problem because the cut rate will be much faster; however, the grinding disc will have a shorter life.
Angle
A grinding disc should be applied to the workpiece at a 35-degree angle. Extended trials have shown that a 35-degree angle provides the most efficient disc wear and amount of stock removal. It is not recommended to use a lower angle at all. Lowering the application angle creates a thin and tapered edge at the disc's edge. The thin edge can no longer withstand the grinding pressure and breaks if the grinding angle is slightly altered.