High Pressure 12V 24VDC OWB7040AL Centrifugal Quiet Inspirator Respirator CPAP BIPAP Blower
Brushless DC Micro Air Blower Features :
1: High speed, specialized high-speed ball bearing offering long service life and lower noise
2: High pressure and airflow output by compact size design
3: High efficiency, much more efficient than brush motor blower
4: High reliability, specialized controller make the working more reliable
5: High intelligent, PWM speed regulation, positive inversion, PG signal feedback, intelligent controlling
2: Blower Technical Parameters
| Model |
OWB7040AL-12V |
OWB7040AL-24V |
| Rated Voltage |
12VDC |
24VDC |
| Outlet Open |
| Current |
4.5A |
2.8A |
| Rated Speed |
34000rpm |
37000rpm |
| Air Flow |
19m³/h |
21m³/h |
| Outlet Sealed |
| Current |
2.4A |
1.7A |
| Speed |
42500rpm |
41000rpm |
| Air Pressure |
5.5Kpa |
6.0Kpa |
| Resistance/Phase |
0.9 Ohm |
1.6 Ohm |
| Induction/Phase |
0.14~0.15mH |
0.5~0.6mH |
| Motor Pole pairs |
1 |
1 |
| Noise |
73dB(A) |
73dB(A) |
| Blower Fan Motor Parameters |
| Motor Type |
Three Phase Brushless DC Motor |
Three Phase Brushless DC Motor |
| Bearing Type |
NMB Ball Bearing |
NMB Ball Bearing |
| Insulation Class |
Class F |
Class F |
| Protect Class |
IP50 |
IP50 |
| Operating Temperature range |
-20℃~+50℃(No Condensation) |
-20℃~+50℃(No Condensation) |
| Hall Effect Sensor |
60° |
60° |
| Speed@hall sensor frequency |
1Hz=60r/min |
1Hz=60r/min |
| Service Life MTTF(25℃ Rated Operation Point) |
15000 hours |
15000 hours |
| Weight |
80g |
80g |
| Matched Driver |
BLDC1208 |
BLDC2403 |
3: OWB7040AL DC Blower P-Q Curve:
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4: Overall dimensions
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5: Wiring diagram![]()
| HX25002-5Y |
| Pin 1 |
26AWG |
Red |
+5V |
| Pin 2 |
26AWG |
Purle |
Hall A |
| Pin 3 |
26AWG |
Green |
Hall B |
| Pin 4 |
26AWG |
Grey |
Hall C |
| Pin 5 |
26AWG |
Black |
GND |
| HX39600-3Y |
| Pin 1 |
20AWG |
Yellow |
Phase A |
| Pin 2 |
20AWG |
Blue |
Phase B |
| Pin 3 |
20AWG |
White |
Phase C |
6: Attentions
1: Do not working under the max air pressure, the air flow is too small at max air pressure, and it's not safe for using.
2: Add a filter attach to the intake makes the blower bearing longer service life.
3: The correct rotation direction is CCW
4: Do not use the blower in High temperature ,high humidity, high magnetic fields
5: Please use suitable power supply for the blower.
FAQ:
Q: Can you design a new blower fan if we give you target performance?
A: Yes, we offer ODM service for both blower fan and controller board
Q: Can we connect this centrifugal air blower directly onto power source?
A: This blower fan is with BLDC motor inside and it needs a controller board to run.
Q: What kind of power source shall we use to drive this blower fan?
A: Generally, our customers use 24vdc switching power supply or Li-on battery.
Q: Do you also sell controller board for this blower fan?
A: Yes, we can supply adapted controller board for this blower fan.
Q: How to change impeller speed if we use your controller board?
A: You can use 0~5v or PWM to change speed. Our standard controller board is also
with a potentiometer to change speed conveniently.
Q: What is the MTTF of this centrifugal air blower?
A: MTTF of this centrifugal air blower is 20,000+ hours under 25 C degree.
Q: Can we use this centrifugal air blower to suct water?
A: This blower fan can not be used to suck water. If you need to suck water, you can ask us to
choose proper item for this special working condition.
Q: Can we use this centrifugal air blower to suck dust directly?
A: This blower fan can not be used to suck dust directly.If you need to suck dust, you can ask
us to choose proper item for this special working condition.
