Grinding Speed Selection

- Jan 03, 2019-

Higher operating speeds are important for the efficient and economical use of round file heads. Higher operating speeds are also helpful in reducing the chip build-up of the file slot, while also helping to cut the corner of the workpiece and reduce the possibility of cutting interference or wedge bias.

However, this also increases the likelihood that the file handle will break. The operating speed of a hard alloy rotary file should be 1,500 to 3,000 surface feet per minute. According to this standard, there are many kinds of rotary files available for grinding machine selection. For example: 30,000-rpm grinder can choose the diameter of 3/16 "to 3/8" file, 22,000-number of rotary grinder can choose the diameter of 1/4 "to 1/2" file. However, for more efficient operation, it is best to choose one of the most commonly used diameters. In addition, the maintenance of the grinding environment and systems is also very important. Assuming that a 22,000-turn grinder often fails, that may be due to too little number of turns.

Therefore, we recommend that you always check the grinding machine's air pressure system and sealing device. Reasonable operating speed is really important for achieving the desired level of cutting and workpiece quality. Increasing the speed can improve the machining quality and prolong the tool life, but it may cause the file handle to break, and the speed reduction will help to remove the material quickly, but it may cause the system to overheat, the cutting quality fluctuates and so on. Each type of rotary file selects the appropriate operating speed according to the specific operation.