l NMB 滚珠轴承延长使用寿命和低噪音. NMB ball bearing guarantee long life;

l 超小体积输出高负压（真空度）和大风量. Compact size but output high pressure and airflow.

l 体积和重量特别适合安装在便携式工具或者设备里面.Very Suitable for compact system or tools.

l  无刷电机 驱动电路板外置. Can Choose wonsmart External driver controller.

l 外置驱动器可以实现PWM或者0~5V无极调速. External driver controller can change speed by PWM or 0~5v signal.

l WS7040-12-X200建议使用 12VDC-6A 的开关电源；12V version choose 12DC-6A power supplier.

l WS7040-24-V200建议使用24VDC-4A 的开关电源；24V version choose 24DC-4A power supplier.

注意事项Notes：

1，不要用最大风压作为工作点，此时风机出风很小，风机运行不安全；

     Do not use max pressure as working point, this point is not safe since airflow is  too small.

2，风机的进风口加一个过滤网可以延长风机轴承的寿命；

     To add a filter onto the inlet can make the blower run longer time;

3，风叶的正确旋转方向是逆时针；

     The right impeller run direction is CCW.