The suction is provided by a suction unit of the side channel blower type, with direct coupling between the fan and the motor shaft and no transmission system.
吸尘系统是旁路鼓风马达，是由风扇和马达轴直联而成，没有传输装置。
The utility model comprises a workbench, a first and a second fixing seats, a transmission mechanism of constant speed, the output shaft and a top fixing workpiece unit.
定速转动单元包括呈转动穿于第一、二固定座并由动力传动单元驱动的转动内杆；其特征在于所述的转动内杆与输出之间设有皮带变速轮单元及调整单元；
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