skills requirement:
1. Rated voltage: 24VDC (adjustable);
2. Working voltage: 21.5~29VDC (adjustable);
3. No-load current: 0.7 A Max;
4. No-load speed: 82±7%RPM (adjustable);
5. No-load noise: 45dB(A) Max at 30CM;
6. Load speed: 70±7%RPM (at 4N.M);
7. Life: controlled by controller, load 80KG, work for 2 minutes, rest for 18 minutes, run more than 20,000 times;