DESIGN 45 A-SISW

Centrifugal Fan

AIRFOIL - SWING-OUT

BASIC DESCRIPTION:

Centrifugal fan with type A, airfoil, high efficiency rotor. Model tested and certified by Chicago Blower Corporation in accordance with the standards AMCA Standard 210 and AMCA Standard 300. SWING-OUT housing, rotating assembly fixed to a hinged lid, allowing quick and easy access to the rotor and the interior of the housing.

APLICATIONS:

Ventilation, exhaust, industrial processes, paint systems and air treatment systems in general.

OPERATING CHARACTERISTICS:

Operating Range: Flow rate up to 100,000 m3/h and static pressure up to 275 mmca.
Mechanical efficiency: Above 80% in the range of maximum yield
Power consumption profile: "LIMIT-LOAD"
Operated fluid: Air or gases without excessive abrasive particles.
Temperature: Up to 80°C – Standard construction. Above, up to 400 °C – Requires special accessories.

CONSTRUCTION: (ROBUST INDUSTRIAL)

● Structure - Welded shapes of carbon steel plates, providing security and robustness to the equipment.
● Housing - Heavy gauge carbon steel plates, welded, with aerodynamic "spiral" shape.
● Inlet cone - Carbon steel formed into hyperbolic flow profile.
● Rotor - Designed with minimum safety factor of 1.2 at the speed of the class consisting of:
   - Center - Precision machined carbon steel, attached to the shaft with screws and key.
   - Backplate - Structured heavy gauge carbon steel disk attached to the center with nuts and bolts.
   - Blades - Carbon steel with airfoil profile, backwardly inclined, welded to the backplate and the cone of the rotor.
   - Rotor cone - Carbon steel formed into hyperbolic flow profile.
● Shaft (in the applicable arrangements) - Carbon steel SAE 1045 precision machined, minimum safety factor of 1.2 at the maximum speed of the constructive class.
● Bearings (on the applicable arrangements) - Calculated for a minimum life L10 of 40,000 hours.
● Transmission - Pulleys and "V" belts, calculated for a minimum of 1.5 times the power of the drive.
● Welding - Electric in an inert atmosphere with qualified procedure and operators.
● Balancing - All rotating assembly is subjected to rigorous static and dynamic balancing, according to ISO 1940 and ANSI S2.19, grade G = 6.3.

SURFACE TREATMENT

According to the procedure of the standard paint of SOMAX the carbon steel parts are subjected to surface treatment through grade SA-2 abrasive blasting, further epoxy based paint with a minimum thickness of 25µ and epoxy finish paint with a minimum thickness of 25µ.