AX-630-LC
AX-630 Long-Cased Axial Fan
- Airflow range 4 000 – 22 000 m³/h
- Static pressure up to 750 Pa
- Impeller diameter 630 mm
AX-1000-AP
AX-1000 Adjustable-Pitch Axial Fan
A one-metre axial fan with blades that can be re-pitched at standstill, for systems whose resistance is not yet fixed at the design stage.
- Blade pitch reset on site at standstill instead of throttling against a damper
- Absorbed power falls with the blade angle, so part-load running costs less
- Blade roots marked and clamped, with a balance re-check after any change
- Bearing housings can be supplied with accelerometer mounting pads
Specifications
- Airflow range
- 18 000 – 95 000 m³/h
- Static pressure
- up to 1 100 Pa
- Impeller diameter
- 1 000 mm
- Motor power
- 5.5 – 30 kW
- Speed
- 730 / 980 / 1 450 rpm
- Blade pitch
- Adjustable at standstill, 15° – 40°
- Sound power level
- 92 – 106 dB(A), ISO 13347 method
- Casing material
- Hot-dip galvanised or painted steel
Technical notes
Product detail
Tunnel, car park and large process extract systems are frequently commissioned before the final system resistance is known. The AX-1000 lets the blade angle be reset on site at standstill, which moves the whole fan curve rather than throttling the fan against a damper.
Why re-pitching beats throttling
Closing a damper to reduce flow adds resistance and burns the energy as heat and noise. Reducing the blade angle moves the fan onto a lower curve and reduces absorbed power. On a fan that runs continuously, the difference is the operating cost of the system.
Setting the pitch
Each blade root is marked and clamped. The blades are reset together to the same angle and the impeller is re-checked for balance before the fan is returned to service. This is a commissioning task, not a control method: the angle is not changed while the fan is running.
High temperature variants
Where the fan is required to run in elevated temperature for a defined period, the motor, bearing grease, cable and impeller material all change together. Any rated smoke-extract classification for this model requires third-party assessment. [Client to confirm which temperature/time classification, if any, has been assessed for this model and by which body.]
Vibration monitoring
Bearing housings can be supplied with mounting pads for accelerometers, so a condition-monitoring programme can be attached without drilling a fan that is already installed.
Enquire about this model
AX-1000 Adjustable-Pitch Axial Fan
Include the airflow, the static pressure and the air temperature and we will confirm the impeller size, the motor rating and the sound data for your duty point.
We reply to every enquiry within one business day.