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| Brand | » Sodeca |
This duct fan from Sodeca is a tubular axial fan with a fibreglass-reinforced polyamide-6 impeller and a three-phase 870 W motor delivering up to 12,800 m³/h maximum airflow. The motor is class F with ball bearings and IP65 protection, making the fan suited to continuous operation in demanding industrial ventilation systems.
In the A execution, air passes over the impeller before passing over the motor – the reverse of the standard H execution (motor to impeller). The finish is an anti-corrosive polyester resin, polymerised at 190°C after phosphate-free nanotechnology degreasing, providing good protection in humid and mildly corrosive operating environments.
The fan combines a robust motor design with long-term reliability: the class F motor has ball bearings and a built-in PTC sensor protecting against overheating, and the -25°C to +60°C operating temperature range covers both cold storage facilities and warm process environments. Three-phase supply (220-240/380-415V, 50Hz) provides steady, stable operation under continuous load, and the anti-corrosive finish extends service life in humid or mildly corrosive atmospheres compared to untreated steel.
The impeller is made of fibreglass-reinforced polyamide-6, a material combining low weight with high mechanical strength. The fan body itself is a tubular casing in sheet steel, and the electrical connection is made via an external junction box rated IP65 – the same protection level as the motor. The entire construction is therefore protected against dust and water jets, making the fan suitable even for outdoor-mounted or moisture-exposed installations.
Yes. The anti-corrosive finish and IP65-rated components make the fan suitable for ventilation in livestock buildings, warehouses, workshops and process industry where humidity is high or the atmosphere contains mildly corrosive substances. With a maximum flow of 12,800 m³/h, it suits larger spaces requiring powerful mechanical ventilation, and the duct connection (øA 660 mm) makes it compatible with standardised ventilation ducting of corresponding dimension.
The model code HEPT-56-4T/A is built according to Sodeca's standard system: HEPT denotes a tubular axial fan with IP65 motor, 56 is the impeller diameter in cm, 4 indicates the number of motor poles (a 4-pole motor runs at roughly 1400 rpm at 50Hz), T stands for three-phase (M denotes single-phase), and /A indicates airflow direction from impeller to motor (inlet execution) – the reverse of the standard H execution where air flows from motor to impeller. On request, execution /F (complete motor, impeller and grille assembly) and /G (motor and impeller unit without grille) are also available, along with special windings for other voltages.
| Brand | Sodeca |
| Model | HEPT-56-4T/A |
| Type | Tubular axial fan (duct fan) with IP65 motor |
| Impeller diameter | 56 cm |
| Number of poles | 4 (approx. 1400 rpm nominal, measured 1350 rpm) |
| Phase | Three-phase (T) |
| Airflow direction | Impeller → motor (A – inlet) |
| Voltage | 220-240V / 380-415V, 50Hz |
| Max current 220-240V | 3.63 A |
| Max current 380-415V | 2.10 A |
| Power, free discharge | 870 W |
| Maximum airflow | 12,800 m³/h |
| Noise level | 72 dB(A) |
| Weight | 28.0 kg |
| Motor class | F, ball bearings |
| Protection rating | IP65 (motor and junction box) |
| Operating temperature | -25°C to +60°C (4-pole motors) |
| Overheating protection | Built-in PTC |
| Impeller material | Fibreglass-reinforced polyamide-6 |
| Casing | Tubular duct casing in sheet steel |
| Junction box | External, IP65 |
| Finish | Polyester resin, polymerised at 190°C, phosphate-free nanotechnology degreasing |
| ErP status | 2015 (per Directive 2009/125/EC) |
| Duct connection øA | 660 mm |
| Duct connection øB | 620 mm |
| øD | 560 mm |
| Total length (F) | 278 mm |
| Motor length (E) | 260 mm |
| Mounting holes | 12 x øJ 12 mm |
Suitable for: Ventilation installers, industrial facilities, agricultural buildings, workshops and process industry.
Industries: Industrial ventilation, agriculture and livestock housing, facilities management, and process industry requiring corrosion resistance.
Estimated delivery time: 8–10 weeks.
| Art. No. | Name | Quantity |
| PS-56/63 | Mounting feet (set of 2) for axial fan | 1 |
| AMC-25/RB | Spring vibration isolator | 4 |
| ACE-560 | Flexible connector, vibration-damping | 2 |
| BTUB-560 | Counter-flange for connection | 4 |
Yes. The anti-corrosive polyester resin finish, polymerised at 190°C after phosphate-free degreasing, combined with IP65-rated motor and junction box, makes the fan well suited to humid spaces such as livestock buildings and process facilities. The -25°C to +60°C operating temperature range covers most indoor and outdoor conditions. For highly aggressive chemical atmospheres, compatibility should always be checked separately.
The fan has a duct connection of øA 660 mm and øB 620 mm, with a total length (F) of 278 mm and a motor length (E) of 260 mm. Mounting is via 12 holes of øJ 12 mm around the casing, matching standardised duct flanges of corresponding dimension.
The difference lies solely in airflow direction: in the A execution, air passes over the impeller before passing over the motor, while the standard H execution directs air from motor to impeller. Electrical data, performance and physical dimensions are identical since the same motor and impeller combination is used – the choice between H and A depends on how the ducting is routed and the direction air needs to flow.


