Poultry EC Farm Exhaust Fan — Manufacturer & Supplier, India
Vayuvents supplies Poultry EC Farm Exhaust Fans with EC (electronically commutated) motors for energy-efficient proportional speed control in commercial poultry farms. Aluminium/FRP, IS 3588. Mumbai. Call +91 90961 88703.
A Poultry EC Farm Exhaust Fan uses an EC (electronically commutated) permanent magnet motor that operates at variable speed under proportional control from a climate controller. Unlike standard induction motor fans that run at full speed or stop completely, EC motor fans run at exactly the speed needed to maintain the temperature setpoint — reducing energy consumption by 30 to 50% and providing far more precise temperature stability in the poultry house.
EC motor technology is the current international standard for energy-efficient poultry and greenhouse ventilation. At 50% fan speed, an EC fan consumes only 12.5% of its full-speed power (fan power varies as the cube of speed) — enormous energy savings during the mild season when full ventilation is not required.
Vayuvents supplies EC motor poultry fans in aluminium and FRP blade/frame construction from 600 mm to 1,400 mm diameter. The EC motor controller interfaces directly with all standard poultry climate controllers (Munters, Fancom, Skov, Cumberland) via 0-10V or PWM control signal — compatible with new and existing control systems.
EC fans also reduce bird stress from the noise and airflow shock of full-speed induction fan cycling — the proportional speed change is gradual and silent, maintaining a stable thermal environment that improves feed conversion and growth rate.
Key Features & Benefits
EC Motor — Variable Speed
Electronically commutated permanent magnet motor operates at any speed from 10% to 100% — precisely matched to the ventilation demand from the climate controller.
30-50% Energy Saving
Fan power varies as the cube of speed — at 70% speed, energy consumption is only 34% of full speed. EC fans deliver the same annual airflow with dramatically lower electricity cost.
Precise Temperature Control
Proportional speed control maintains house temperature within ±0.5°C of setpoint — far better than ±2 to 3°C achievable with staged on/off induction fans.
Climate Controller Compatible
0-10V or PWM control signal interface — direct compatible with Munters, Fancom, Skov, Cumberland, and all standard poultry and greenhouse climate control systems.
Low Noise at Part Speed
EC fans running at 50 to 70% speed produce significantly less noise than full-speed induction fans — reduces bird stress and improves flock welfare.
Aluminium/FRP Construction
Corrosion-resistant aluminium and FRP construction for the high-humidity, high-ammonia poultry house environment — same durability as standard poultry fans.
IP55 EC Motor
IP55 sealed EC motor enclosure for the poultry house environment — same protection as standard IP55 induction motors.
IS 3588 Compliant
Airflow performance tested per IS 3588-1987 across the operating speed range with EC motor performance curve certificate.
Technical Specifications
| Parameter | Specification |
|---|---|
| Fan Diameter Range | 600 mm to 1,400 mm |
| Motor Type | EC (Electronically Commutated) Permanent Magnet |
| Speed Control | Proportional — 10% to 100% via 0-10V or PWM signal |
| Motor Power Range | 0.18 kW to 1.5 kW |
| Energy Saving | 30 to 50% vs fixed-speed induction motor fans |
| Blade Material | Aluminium alloy / FRP |
| Frame Material | Aluminium / FRP |
| Controller Interface | 0-10V / PWM / RS-485 Modbus |
| Motor Enclosure | IP55 |
| Standards | IS 3588-1987 | IEC 60034 |
Product Images
Where It Is Used
- Broiler poultry houses — tunnel ventilation with high-velocity airstream for bird cooling
- Layer poultry houses — cross or tunnel ventilation for year-round climate control
- Breeder houses — precise climate control for optimum egg production and fertility
- Hatchery facilities — temperature and humidity control for chick hatching
- Pig and swine houses — ammonia dilution and heat removal ventilation
- Dairy cattle sheds — heat stress reduction for milk yield maintenance
- Rabbit and small animal farms — odour control and heat exhaust
- Commercial greenhouses — temperature and humidity management for crops
- Hydroponic and vertical farms — air circulation and CO₂ distribution
- Mushroom cultivation houses — precise humidity and CO₂ control
- Floriculture greenhouses — temperature control for flower quality
- Nursery and propagation houses — humidity and temperature management for young plants
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FAQs — Poultry EC Farm Exhaust Fan
The required number of fans depends on the building volume and required air change rate. For broiler poultry, 1 air change per minute (60 per hour) at peak summer is the standard — a 120 m × 12 m × 3 m broiler house (4,320 m³) needs approximately 4,320 m³/min = 2,59,200 m³/hr, requiring 6 to 8 fans of 1,200 mm diameter (each providing 35,000 to 40,000 m³/hr). Vayuvents provides free fan count and layout calculations based on your building dimensions.
Tunnel ventilation places all exhaust fans at one end gable and all air inlets at the other end — creating a high-velocity airstream along the full building length. This is more effective for bird cooling in hot climates. Cross ventilation places fans on one long wall exhausting through the opposite long wall — lower velocity but simpler ducting. Tunnel ventilation is the modern standard for commercial broiler and layer houses in India.
Poultry house environments have high humidity (60 to 90% RH), ammonia from litter (up to 25 ppm), and fine dust from feathers and litter — all of which corrode standard MS fan components. Vayuvents recommends aluminium or FRP blades and aluminium or FRP casing for poultry fans. IP55 motor enclosure prevents ammonia and dust from entering motor windings. Full aluminium or FRP cowl frames are preferred over galvanised steel in high-ammonia environments.
Yes. EC (electronically commutated) motor fans provide proportional speed control — the fan runs at exactly the speed required to maintain the setpoint temperature, rather than switching on at full speed and off completely. This provides better temperature stability, reduces energy consumption by 30 to 50%, and reduces mechanical stress from frequent start-stop cycling. Vayuvents supplies EC motor fan options for modern climate-controlled poultry and greenhouse installations.
Standard installations use a multi-stage thermostat controller that switches fan banks on in sequence as temperature rises — Stage 1 fans at 26°C, Stage 2 at 28°C, Stage 3 at 30°C, and so on. Modern climate controllers (Munters, Fancom, Skov) provide continuous proportional control of EC fans alongside pad cooling, heating, and lighting. Vayuvents fans are compatible with all standard thermostat and climate controller systems.
In tunnel ventilation systems, the total inlet area must be sufficient for the inlet air velocity to not exceed 2.0 to 2.5 m/s to avoid turbulence and dead zones. For 2,59,200 m³/hr total exhaust airflow, the required inlet area is approximately 2,59,200 / 3,600 / 2.0 = 36 m². Evaporative cooling pads are sized to this area. Vayuvents provides full inlet sizing guidance alongside fan selection.
Contact Vayuvents at enquiry@vayuvents.com or call +91 90961 88703. Share the building length, width, and height, the animal type and stocking density (for poultry) or crop type (for greenhouse), and the target temperature setpoint. We will calculate the required total airflow, fan count, layout, and inlet sizing and provide a commercial proposal within 24 hours.