IMPORTANT NOTES: 1. Please note that the carbon brush screws on the bottom of the machine should not be tightened too much to avoid smoke and odor when using. Simply remove the carbon brushes on both sides at the bottom of the machine and reinstall them to solve the problem. 2. This Superfine Powder mill is equipped with an overload protection switch to prevent the machine from being damaged due to overload. If the humidity or hardness of the grinding material is too high, it may cause the blades to jam, and then trigger the machine overload. When using this product again, you need to wait for the dry mill to cool down before pressing the overload protection switch and shake the machine during the working process to prevent the blades from jamming again. 3.This Dry Material Grinding Machine quickly pulverizes a variety of dry materials in 30 seconds to 3 minutes. It is recommended that the grinder be run continuously for no more than 3 minutes to avoid malfunctioning due to overloading. Please use a cleaning brush to remove any remaining powder inside the grinding jar, and then wipe the inside of the jar with a dry cloth (the grinding jar is not removable, so do not wash or rinse the motor base directly with water to avoid damaging the motor). PRODUCT PARAMETERS? Capacity:800g Voltage:110V Rotating Speed:36000r/min Power:1800W Crushed Degree:30-300 mesh Working Time:0-5 min Interval Time:5~10 min Meterial: 304 stainless steel.