the main grinding machine guards

Therefore, requiring great than or equal to 200mm straight sand loaded on the card office after hours should first conduct static balancing, wheel trimmed after shaping or imbalance found in the work, it should be repeated static balance.
Matching problem mainly refers to thin cutting wheel  the installation of the chuck and grinding wheel logistic problems. According to standards, wheel diameter not less than chuck is mounted sand office diameter of 1/3, and the corresponding provisions of the wheel wear to a diameter of 10mm diameter larger than the chuck should be replaced with a new wheel. So there is a chuck and grinding wheel matching problem, otherwise it will be the case, "big horse car" caused by equipment and material waste; "small horse cart" do not meet the safety requirements, could easily lead to accidents. Therefore, chuck and grinding wheel reasonable match, one can save  sandpaper roll the device, cut about materials; hand and meet the safe operation requirements. Furthermore, the wheel should be installed between the chuck chuck diameter greater than the diameter 2mm, 1mm ~ 2mm thick cushion.
Shield is the main grinding machine guards, whose role is: When the wheel at work for some reason destroyed, effectively covering the wheel debris, to ensure the safety of personnel. Grinding shield round and square shape, not exceed the maximum opening angle of 90 °; protective  grinding wheel manufacture cover is made of a steel tensile strength of not less than 415N/mm2. Replaced with new wheel when the protective cover installed to solid and reliable, and shields do not disassemble or discard. Gear grinding machine quiet panel is one of the main protective accessories, protective cover above the horizontal plane of the spindle opening is larger than or equal to 30 (must be set for this device.