KTO Type Iron-Cased Circular Duct Fan

Key Structural Features

1. Robust Iron Casing
   • Made of high-quality galvanized or painted steel for durability, corrosion resistance, and airtightness。
   • Circular inlet/outlet for coaxial duct connection; no dedicated fan room required, saving installation space and cost。
2. External Rotor Motor
   • Direct-drive design (stator inside, rotor outside) for compact, space-saving integration。
   • Class F insulation, IP54/IP55 protection, and integrated thermal overload protection for safe, continuous operation。
   • Self-cooled by airflow; ambient temperature range: -20°C to +60°C。
3. High-Performance Impeller
   • Backward-curved, multi-blade design (plastic or metal) with dynamic balancing for low vibration and noise。
   • Aerodynamically optimized for high airflow efficiency and stable pressure output。

Core Advantages

• Ultra-Compact & Space-Saving: Small footprint, inline design fits directly into circular ducts; supports any mounting angle (horizontal/vertical)。
• Low Noise & Vibration: Precision engineering delivers ≤60 dB(A) noise, ideal for noise-sensitive areas like hotels, hospitals, and offices。
• Energy Efficient: Optimized motor-impeller pairing reduces power consumption; 2-speed/stepless speed control available。
• Easy Installation & Maintenance: Lightweight, all-in-one unit with quick-connect duct flanges; sealed bearings and removable guard simplify cleaning。
• Wide Performance Range: Airflow: 300–5,000 m³/h, static pressure: 200–800 Pa, speed: 1,400–2,800 r/min。

Typical Applications

• Commercial: Hotel/restaurant ventilation, shopping mall air exchange, office exhaust, bathroom/toilet ventilation。
• Industrial: Workshop fume exhaust, equipment cooling, dust extraction, and process air supply。
• Residential & Public: Building HVAC systems, garage ventilation, kitchen smoke exhaust, and gymnasium air circulation。

Technical Specifications (Common Models)