RTFANS ventilation fan is the ideal exhaust fan whenever extra-high airflow capacity is required. The unique propeller design is self-cleaning and allows the high efficiency to be reached, features that characterize the high quality and excellent performance. Four units ranging from 28,000 to 44,500m³ per hour airflow extract out of the specified space are available, this makes the KA series ventilation fan more suitable for some applications such as Evaporative cooling system, supermarket, Hospital, workshop, textile, garment, gymnasium, and so on.
- Adjustable bolt: Can adjust belt tension;
- Motor: Insulation level F,IP55 or equivalent;
- V type belt, high quality, durable;
- Fan blade: Stainless steel or aluminum optional;
- Bearing: Dedicated bearing specially designed for ventilation fan;
- Belt pully: Rust-proof die-cast aluminum alloy material;
- Protection net: Proper spacing, safeguard;
- Louver: Automatic closing, keep warm in winter,wind-proof and rain-proof;
- Counterweight design, auto balance.
Full speed efficiency motor, with imported American internally installed protector, protect the motor from damage if any phase failure, overload, or overload current occurs; Protection level IP55, isolation Degree F.
Special designed streamline of blades can make the highest airflow with the lowest air pressure. Optional stainless steel, aluminum & galvanized steel blades to meet different demands from your customers.
Imported high quality NSK ballbearing, durable and smooth.
Die casted by high strength aluminum, easy for assembly and rust-proof.
High-quality frame material:
We use 10 years of rust-resistant solid 1.0mm oxidative galvanized steel(starting weight 140g) as a frame, longer lifetime and durable.
V type belts:
Gates belts make the service time double compare with an ordinary belt. To check tightness elasticity, the best condition is that you could press down 15-20mm when you press the belt in the middle by your finger.