Rated Voltage: 220V Rated Power：25Ｗ Rated Frequency: 50Hz Rated Speed: 2700r/min Insulated Grade: F Noise Level:　≤50dB Working Model: S1 Exceed Axis Length：55mm Axis Diameter：Φ8mm Assemble Dimension: Φ81 (mm) Net dimension：105?105?120 (mm) Weight：0.95kg Parameter Rated Voltage: 220V Rated Power：35W Rated Frequency: 50Hz Rated Speed: 1250r/min Insulated Grade: B Noise Level:　≤50dB Working Model: S1 Exceed Axis Length：31mm Axis Diameter：Φ8mm Assemble Dimension: Φ123 (mm) Net dimension：135?135?92 (mm) Weight：0.97kg Rated Voltage: 220V Rated Power：35-40W Rated Frequency: 50Hz Rated Speed: 1250r/min Insulated Grade: E Noise Level:　≤45dB Working Model: S1 Exceed Axis Length：30mm Axis Diameter：Φ8mm Assemble Dimension: Φ96 (mm) Net dimension：106?106?92 (mm) Weight：0.785kg Rated Voltage: 220V Rated Power：25W Rated Frequency: 50Hz Rated Speed: 1250r/min Insulated Grade: E Noise Level:　≤45dB Working Model: S1 Exceed Axis Length：30mm Axis Diameter：Φ8mm Assemble Dimension: Φ88 (mm) Net dimension：98?98?78 (mm) Weight：0.765kg