Sickle-Blade FanSickle Series blades are built for nearly any air-moving application. The sickle blade’s large chord length and thin trailing edge combine to generate greater pressure at slower speeds while significantly reducing noise levels. Company also offers fan impeller solutions for applications that have reduced noise by up to 7 dBA. Available in fiberglass-reinforced nylon, fiberglass-reinforced polypropylene, and aluminum, the fans are offered in diameters from 11 to 77".
Multi-Wing America, (800) 311-8465, www.multi-wing.net
Plug FansThe compact “cartridge” design of plug fans makes them suitable for applications where the system plenum acts as the fan housing, such as those in freezers, ovens, dryers and other high-capacity systems. Specifications include capacities to 74,000 cfm; pressures to 20" wg; and temperatures to 1,300°F (704°C). Offered in 12 sizes ranging from 12 to 49", the fans can be specified with a choice of two backwardly inclined wheels: AcoustaFoil (with airfoil blades) or PLR (with flat, single-thickness blades).Wheels are dynamically balanced, and all fans are checked at specified operating speed.
New York Blower Co., (630) 794-5776, www.nyb.com
Twisted, Tapered Aluminum Airfoil FanThe design of PowerFlo incorporates naturally occurring physics by countering centrifugal forces to blade air load reactions. Features include a twisted and tapered blade design that allows lower RPMs for reduced noise and quiet operation as well as uniform velocity across the blade length. A small hub reduces or eliminates dead spots. It is offered in diameters from 4 to 14'.
Amarillo Chittom Airflo, (918) 585-5638, www.amarillochittom.com
Industrial Hanging Fine-Mist Fogging FanAquafog Turbo XE atomizing fans can be used for evaporative cooling or indoor and outdoor humidification applications. The nozzle-free fans can atomize ordinary water supplies into a fine, mist-like fog. Utilizing high-speed centrifugal force and powerful airflow, the unit can propel a misty-fog stream up to 35' away and can humidify up to 40,000 ft 3. An optional dwell-free oscillator can be added for applications that require sweeping action to increase coverage and enhance circulation.
Jaybird Manufacturing Inc., (888) 889-4407, www.jaybird-mfg.com
Airfoil Plug FanDirect-drive airfoil plug fan offers a compact alternative to belt-drive plug fans. Applications include packaged equipment for cooling, drying, dust collection and recirculation systems. When coupled with a variable frequency drive, performance is not limited to synchronous motor speeds. Product line includes plug fan sizes from 12.25 to 30" and static pressures to 12". Direct drive temperature maximum typically is limited to 180°F (82°C), but it can be higher when the fan is equipped with factory cooling wheel and insulated plug panels.
Chicago Blower Corp., (630) 858-2600
Fan Blades and HubsProvided as cooling tower replacement parts, Tuf-Lite are constructed of lightweight, corrosion-resistant, fiberglass-reinforced vinyl ester or epoxy resins. The fiberglass cooling tower fans are available in adjustable pitch or the company’s Auto Variable pitch hubs for new applications or to retrofit existing towers.
Cooling Tower Maintenance, (905) 624-4823
Motorized ImpellerModel XR combines the efficiency of a backward-curved airfoil impeller with an external rotor motor. Suitable for supply or exhaust applications, the motorized impeller is fully speed controllable. Both motor and impeller are located directly in the airstream, where the impeller acts as a rotating heat sink to ensure heat dissipation and efficient motor cooling.
Continental Fan Manufacturing Inc., (800) 779-4021
Axial FansLine includes axial fans in seven sizes, sixteen models and three mounting types. Standard features include spark-resistant cast aluminum propellers and totally enclosed (TEFC or TENV) motors. Explosionproof motors are also available. With capacities up to 28,490 cfm, the fans can be used for spot cooling of heat-generating equipment where large volumes of air are required; temporary spot cooling; and cooling personnel.
Cincinnati Fan, (513) 573-0600
Direct-Drive Panel FanModel DPF offers belt-driven performance without the use of belts and pulleys. The key is an adjustable-pitch impeller that can be set to meet exact performance requirements. The direct-drive panel fan ships standard with a deep drawn venturi. Fan housings are available in several materials, including painted steel, aluminum and stainless steel. Impeller blade pitch adjustment can be carried out while still attached to the fan’s drive shaft. Impeller blades are available in cast aluminum or nylon-glass fiber construction. Panels can be custom formed for non-standard applications. Performance ranges from 300 to 100,000 cfm.
Daltec Industries Ltd., (888) 532-5832
Airfoil WheelType FA wheel is offered in diameters from 12 to 60" in both clockwise and counter-clockwise rotations. With an airfoil design, the wheel is manufactured as a single piece in solid fiberglass and coated with a corrosion-resistant vinylester resin. Features include tapered inlet side and airfoil blades, and it has non-overloading horsepower characteristic curve. When used in conjunction with a precision inlet cone, it efficiently moves large volumes of air at high pressures with low noise characteristics at low RPM.
Hartzell Fan Inc., (800) 336-3267
Square FansSquare fans combine heavy-gauge, industrial construction with a direct-drive design for tight footprints. Fans are designed for clean-air applications such as product cooling, product drying, pneumatic conveying, supply air, and exhaust on the clean-air side of dust collection systems. The line is offered in 11 sizes with fan static pressures to 22" w.c. and capacities to 29,000 cfm.
Mechanovent Corp. , (219) 325-6787
Axial FanIntended for use in cooling and refrigeration applications, 2100 Series includes Model 2101GP for diaphragm mounting, where low pressure and high air volume are required, and Model 2102, for wall mounting or where connection to ductwork is required. Features include static pressure up to 300 Pa and fixed geometry impellers in glass-filled polypropylene or clad mild steel.
American Fan Co., (513) 874-2400
Motorized Fans with Backward ImpellersEcofit is designed to deliver low noise and high efficiency in applications such as electronic cabinet cooling. Airflows reach a maximum of 215 cfm. The plastic impellers measure 5.31 x 1.65" (135 x 42 mm). Noise is 56 dBA at 60 Hz or 53 dBA at 50 Hz. Related fans include a series of motorized backward impellers with diameters from 7.09 to 7.56" (180 to 192 mm).
Rosenberg USA, (704) 289-5423
Spot CoolersFor cooling products, production equipment or personnel under excessive heat, Long fan at the point it is needed. The spot cooler mounts on the wall. An adjustable bracket speeds installation and allows the fan housing to be tilted up or down and side to side for maximum efficiency. Quiet operation combined with remote mounting eliminates unnecessary noise.
Strobic Air Corp., Division of Met-Pro Corp., (215) 723-4700
Waterproof FansBoth dust-proof and water-spray-proof models are suited for use in control equipment in indoor/outdoor cooling applications with dirt, grime and high humidity. The DC units operate from a nominal 12 V supply and deliver up to 115 cfm. Static pressure ranges up to 0.38 in. w.c, fan speeds up to 3,900 rotations per minute, with noise ratings of less than 49 dBA.
Sunon Inc., (714) 255-0208
Heavy-Duty Airfoil FansModel AF is designed, engineered and tested for use in airstreams where high efficiency and quiet operation are required. They are used extensively for continuous service to 850°F (454°C) in forced and induced draft applications in the chemical and power generation, among others. The airfoil fans are designed for use with variable-speed motors.
Robinson Industries Inc., (724) 452-6121
Universal Fan and HeatsinkUniversal CPU cooler heatsink/fan combination delivers cooling performance and maintains system stability. The extra-large aluminum heatsink provides efficient heat dissipation and improves cooling capacity by thermally bonding the CPU to the heatsink with the included thermal transfer compound.
StarTech, (800) 265-1844