Ruck Prime 24 Inch Mixed Flow Fan for Industrial Ventilation
The 24-inch Prime is a mixed flow inline fan from Ruck Air Movement built for large commercial and industrial duct systems. It pairs an aluminum housing with 3D shaped impeller blades, and a mounting bracket comes included. Maximum airflow is 9564 CFM, and the fan can work against up to 3.97 in.wg of static pressure. The three-phase AC motor is rated for 400V at 50 Hz. Rated power is 2745 W, and the maximum current is 6.1 A. Speed is set by frequency, so the fan runs from a frequency inverter, with a maximum allowed frequency of 60 Hz. Rated speed is 1450 rpm, rising to 1600 rpm at most. The four-pole motor is IP55 rated with class F insulation. Air and surroundings can range from -4°F to 140°F. The fan weighs 109.1 lb. Housing break-out noise measures 77 to 85 dB(A) sound power across the fan curve. Ruck supplies this size from the factory with a lead time, shipped ex works.
Planning a Three Phase Inline Fan Installation
A fan this size belongs on a long, heavily loaded duct network in a commercial facility, multi-room build or process line. Bring in an electrician early, since the motor needs a three-phase supply matched to its rating and a frequency inverter for speed control. Mount the fan on its bracket to a frame, slab or steel support that can carry its weight. Never let the ducting take any of that load. Use flexible connectors on each side to keep vibration out of the ductwork. Clamp and seal every joint so the fan's pressure goes into moving air rather than leaking. On an exhaust system, place filters on the inlet side and duct the outlet outdoors. Program the inverter to ramp the fan up and down gradually. Run it lower during cooler periods and raise it when the heat load climbs. The high operating temperature rating suits warm plant rooms and process exhaust. Fit a silencer on the outlet where the duct ends near occupied space. Isolate power and check bearings, clamps and the impeller during scheduled maintenance.
Key Features
- 9564 CFM Mixed Flow: 3D shaped impeller blades for high airflow.
- 3.97 in.wg Max Pressure: Holds airflow through long, loaded ducts.
- 400V Three-Phase Motor: Rated 2745 W, 6.1 A maximum.
- Frequency Control: Runs from an inverter, up to 60 Hz.
- Aluminum Housing: Mounting bracket included.
- IP55 Motor: Rated for -4°F to 140°F operation.
Technical Specifications
| Specification | Value |
|---|---|
| Brand | Ruck Air Movement |
| Model | Prime 24 in |
| Part number | 147578 |
| Duct size | 24 in |
| Max airflow | 9564 CFM (16250 m³/h) |
| Max static pressure | 3.97 in.wg (990 Pa) |
| Voltage | 400V, 3-phase, 50 Hz rated |
| Max allowed frequency | 60 Hz |
| Rated power | 2745 W |
| Max power | 3377 W |
| Rated current | 4.2 A |
| Max current | 6.1 A |
| Speed control | Frequency (inverter) |
| Rated speed | 1450 rpm |
| Max speed | 1600 rpm |
| Poles | 4 |
| Motor protection | TAO |
| Insulation class | F |
| IP rating, motor | IP55 |
| Temperature range | -4°F to 140°F (-20°C to 60°C) |
| Housing | Aluminum |
| Mounting | Bracket included |
| Housing break-out sound power | 77 to 85 dB(A) |
| Weight | 109.1 lb |
| Availability | Factory lead time, ex works |