50-inch Butterfly Cone Ventilation Fan with PM Motor for Livestock and Poultry Farms

Balanced Aerodynamic Integrated Frame Tailored for Mid-Volume Breeding Facilities

Our 50-inch butterfly cone exhaust fan adopts an integral one-step fiberglass-reinforced SMC compression molding housing, refined via repeated fluid dynamics simulation testing to form smooth, low-resistance air duct curves. Different from the oversized heavy-duty ventilation fans designed for ultra-large breeding bases, this 50-inch model achieves a scientific balance between air exchange volume and power consumption, specially customized for medium-sized pig barns, layer chicken houses, broiler sheds and small family-scale breeding farms.

The monolithic SMC shell carries outstanding anti-corrosion and anti-aging performance. It can permanently resist the erosion of ammonia gas, manure volatile chemicals, long-term high humidity and temperature fluctuations commonly seen inside livestock barns. Compared with traditional metal casings prone to rust and paint peeling, our molded shell requires no regular anti-rust spraying or surface repair, greatly cutting daily farm equipment upkeep labor. The streamlined cone structure also eliminates turbulent air flow, reducing ventilation noise while stabilizing indoor air circulation throughout the whole breeding house.

Self-Developed Compact 1.5KW Brushless PM Inverter Energy-Saving Motor

This ventilation fan is equipped with our independently researched direct-drive permanent magnet brushless variable frequency motor, with a rated power of 1.5KW perfectly matched to the ventilation load demand of medium breeding spaces. Abandoning the old belt-driven transmission structure, the direct-coupled design removes vulnerable wearing parts such as belts and tension wheels, erasing hidden risks of belt slipping, aging and frequent replacement.

The motor core is wrapped with Class F high-temperature resistant insulating coils and sealed to reach full IP67 dustproof and waterproof protection grade. It can operate stably for 24 hours a day under damp, dusty farm environments without overheating or speed fluctuation. Even when the air shutter opens partially to adjust air volume, the motor maintains stable torque and uniform rotation speed, avoiding unstable wind pressure that affects livestock living comfort.

A built-in intelligent digital control module is integrated inside the fan body, supporting two mainstream automatic control signals: 0-10V analog voltage stepless speed regulation and RS485 industrial communication interface. It can be seamlessly connected with all mainstream farm environmental automatic monitoring systems, allowing unified remote adjustment of wind speed, real-time operation data feedback and linkage control with temperature, humidity and ammonia sensors inside the barn.

Lightweight High-Sealing Butterfly Shutter Air Lock System

The fan is fitted with a customized medium-load butterfly door assembly, forged from high-tensile lightweight aluminum alloy plates with anti-oxidation surface treatment. Each shutter panel is matched with thick elastic rubber sealing strips along the edge. When the fan stops running, the shutters fully close under gravity and auxiliary wind pressure, forming a complete airtight barrier to block cold outdoor reverse airflow, prevent indoor temperature loss and stop wild birds, mosquitoes and dust from entering the breeding house.

We optimized the internal hinge and linkage structure of the butterfly doors to reduce friction during opening and closing. After thousands of cycle aging tests, the aluminum panels are resistant to bending, deformation and jamming even after years of frequent switch operation. This reliable shutter system effectively cuts air leakage loss during equipment standby, indirectly lowering the motor’s startup frequency and overall farm power bills year-round.

Key Core Advantages

• Delivers balanced, stable airflow matched to mid-sized pig and poultry barns, balancing ventilation effect and daily power expenditure to cut long-term breeding operation costs
• Integrated SMC anti-corrosion molded shell withstands persistent high humidity and ammonia erosion inside livestock houses, no frequent rust maintenance required
• Belt-free direct-drive PM motor structure reduces vulnerable consumable parts, greatly lowering equipment failure frequency and extending the full fan service lifespan
• Dual-mode automatic signal control compatible with most mainstream farm intelligent climate systems, supporting unattended remote environmental regulation
• Tight-sealing aluminum butterfly shutters minimize reverse air leakage, stabilize indoor barn temperature and reduce extra heating or cooling energy waste
• Compact overall body with easy on-site installation, compatible with standard wall openings of most renovated medium-scale breeding facilities

Compare this model within our poultry fan static-pressure and supplier-comparison guide.