HOME > Products > WPM > Selection Guide WPM > DC Brush Motor & Gear WPM

WPM DC Brush Motor & Gear


Geared motor Specification

Geared motor model AA/AB/BA/BB CA
Max. Discharge pressure *1 90KPa (Pharmed BPT)
Max. Suction pressure *1 -90KPa (Pharmed BPT)
Duty Cycle 50%
Motor  operating  temperature Less than 60℃
Operating  noise *2 Approx. 52dB (JIS B 8310: 1985)
Geared motor endurance *3 More than 1500hr More than 1000hr
Tubing endurance *3 More than 750hr (Pharmed BPT)
Operating external temperature 0℃ to 50℃ (No condensation, No freezing)
Operating humidity 20% to 85% (No condensation)
Standard UL / CE / RoHS Compliant CE / RoHS Compliant

The consumption current described above is the value during normal operations.

An approximately threefold inrush current occurs during rotation startup.

*2 Measurement conditions for the pump noise level conform to JIS B 8310: 1985.

The values indicated for durable service life are not guaranteed. The data shown is the result of tests performed by flowing distilled water under the conditions of 20℃ room temperature, and intermittent switched operation of 60 seconds ON and 15 seconds OFF. The results vary depending on the chemicals used, ambient temperature and humidity, and operating cycle conditions. Use the indicated values as guidelines.



12/24VDC Brush Motor & Gear

24VDC Brush Motor Gear

(medium speeds)


12VDC Brush Motor Gear

(medium speeds)


12VDC Compact Motor Gear

(medium speeds)

 WPM DCブラシモータ BAグラフ    WPM DCブラシモータ BBグラフ    WPM DCブラシモータ CAグラフ
Consumption current 200mA max   Consumption current 400mA max   Consumption current 250mA max

24VDC Brush Motor Gear (low speeds)

12VDC Brush Motor Gear (low speeds)
 WPM AB    WPM BB    
Consumption current 100mA max   Consumption current 150mA max    














The current consumption indicated is the value during normal operation.  When rotation begins, an inrush current of approximately 3 times this amount is generated.
To determine the flow rate, the pump was installed at a height of 1.5mm, a hose having the same inside diameter as the pump tube was used, and the flow rate of distilled water was measured with a flow meter. The values indicated are for short-term operation and are not guaranteed for long-term operation. The flow rate has a tendency to increase until the tube becomes acclimated and different lots may have different flow rates within the specified tolerance. When the inside diameter of the hose is smaller than the inside diameter of the pump tube, the flow rate may decrease.  Also, the rotating speed of the DC motor will vary depending on the load conditions and fluctuations in motor temperature. During the design stage, be sure to select a motor with ample headroom.

The lowest operation voltage may vary depending on the tube type, tube size, ambient temperature, etc.
Please contact your sales representative to get help when you operate by lower voltage.

Short circuit between terminals may occur due to end of motor life or short circuit between commutator slits by specific operating environment and condition. In order to prevent circuit burnout, please take protective measures such as using fuses.



Dimensions (unit: mm)

Motor wiring terminal dimensions diagrams
12 or 24VDC Brush Motor 12VDC Compact Brush Motor

WPM DCブラシモータ モータ結線図

WPM DCブラシモータ モータ結線図

page top