Peristaltic pump motor classification and main features
First, the stepper motor OEM peristaltic pump.
Stepper motor OEM peristaltic pump
1, the general stepper motor accuracy of 3-5% of the step angle, and does not accumulate.
2, stepper motor OEM peristaltic pump maximum allowable surface temperature. Stepper motor temperature is too high will first demagnetize the motor's magnetic material, resulting in torque down or even out of step, so the maximum allowable temperature of the motor surface should depend on the demagnetization of different motor magnetic materials; Generally, the demagnetization of magnetic materials Points are above 130 degrees Celsius, and some even as high as 200 degrees Celsius, so the stepping motor surface temperature 80-90 degrees Celsius is completely normal.
3, stepper motor OEM peristaltic pump torque will increase with the speed down. When the stepper motor rotates, the inductance of each phase winding of the motor will form a back electromotive force; the higher the frequency, the larger the back electromotive force. In its role, the motor with the frequency (or speed) increases and the phase current decreases, resulting in torque decline.
4, stepper motor OEM peristaltic pump can operate at low speed, but if higher than a certain speed can not be started, and accompanied by howling. Stepper motor has a technical parameters: No-load starting frequency, that is, the stepper motor can normally start under no-load pulse frequency, if the pulse frequency is higher than this value, the motor can not start normally, may occur lost step or stalling. In the case of a load, the start frequency should be lower. If you want to make the motor reach high speed rotation, the pulse frequency should be accelerated, that is, the lower the starting frequency, and then at a certain acceleration to the desired high frequency (motor speed from low to high speed). Stepper motor with its significant features, in the era of digital manufacturing plays a major purpose. With the development of different digital technologies and the advancement of stepping motor technology, stepper motors will be applied in more fields.
Second, the brush DC servo motor - motor low cost, simple structure, large starting torque, wide speed range, easy to control, need maintenance, but easy maintenance (for carbon brush), will have electromagnetic interference, environmental requirements . So it can be used for cost-sensitive general industrial and commercial applications.
Third, the brushless DC servo motor - Motor small size, light weight, large output, fast response, high speed, small inertia, smooth rotation, torque stability. Easy to realize intelligent, electronic commutation method is flexible, square wave commutation or sine wave commutation. Maintenance-free brushless motor does not exist the case of loss, high efficiency, low operating temperature noise, electromagnetic radiation is small, long life, can be used in a variety of environments.