Products & Services
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Supplier: Twin City Fan & Blower
Description: Application The HRT Radial Tip Fan is designed for applications involving large volumes of gas streams at moderate to high pressures. This unit can accommodate clean or dirty airstreams and is widely used to exhaust gases from bag-type collectors, precipitators, scrubbers, cyclones
- Air Flow Rate: 6060 to 254700 SCFM
- Applications: Air Handling Units / HVAC
- Environment: Clean Air / Gas
- Maximum Diameter (Fan or Blower Wheel): 27 to 80.75 inch
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Supplier: Lasko Products, Inc.
Description: High-powered motor for maximum performance Remote control Electronic auto-off timer 3 powerhouse speeds Louvered air flow control Oscillation for broad area coverage On-board remote control storage Easy-grip carry handle
- Applications: Personnel (Mancooler, Box Fans, etc.)
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Supplier: Photron
Description: High performance CMOS sensor technology providing 3,600 fps operation at 1,024 x 1,024 pixel resolution and frame rates up to 500,000 fps at reduced resolution To complement the existing range of Photron high-performance high-speed imaging products, the FASTCAM SA4 delivers a
- Camera Function: Video
- Features: Cooled Sensor, Low Light, Pan / Tilt
- Horizontal Resolution: 128 to 1024 lines
- Imaging Technology / Camera Type: CMOS
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Supplier: Lasko Products, Inc.
Description: QuickMount® wall-mount system Converts easily from wall to floor use Three powerful speeds Pivot action directs air flow Front-mounted controls for added convenience Durable, all-metal construction QuickMount® bracket mounts easily to wall studs Includes a patented, fused safety plug E.T.L.
- Applications: Personnel (Mancooler, Box Fans, etc.)
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Supplier: Lasko Products, Inc.
Description: Unique, multi-purpose, pivoting utility fan Focused air stream for powerful performance Patented, full-range pivoting fan head Three high velocity speeds Two additional outlets for tools and more Circuit breaker with reset button Three-prong grounded plug Fully assembled
- Applications: Personnel (Mancooler, Box Fans, etc.)
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Supplier: Lasko Products, Inc.
Description: Unique, multi-purpose, pivoting utility fan Focused air stream for powerful performance Patented, full-range pivoting fan head Three high velocity speeds Two additional outlets for tools and more Circuit breaker with reset button Three-prong grounded plug Fully assembled
- Applications: Personnel (Mancooler, Box Fans, etc.)
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Supplier: Allied Electronics, Inc.
Description: Fan; 12VDC; 40 x 40 x 20mm; Vapo Bearing; Extra High Speed; Magnetic System
- Application: Industrial/Commercial
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Supplier: Xoxide
Description: Take full advantage of your 92mm hole with a high speed 92mm Fan From Ascent! This high quality fan features a higher MTBF than many of the top rated manufactures in the fanning game with a 70,000+ hr MTBF! With supple airflow, minimal noise, and a 3pin
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Supplier: Allied Electronics, Inc.
Description: Orion heavy-duty AC fans are in use worldwide in all types of applications. Designed and manufactured to exacting UL, cUL, TÜV and/or VDE approvals. Check out Orion's smallest AC fans — the OA60AP Series. Features: Aluminum Die Cast Frames Low
- Application: Industrial/Commercial
- Bearings: Ball / Roller
- Diameter: 6.7 inch
- Maximum Air Flow: 235 SCFM
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Supplier: Allied Electronics, Inc.
Description: Orion heavy-duty AC fans are in use worldwide in all types of applications. Designed and manufactured to exacting UL, cUL, TÜV and/or VDE approvals. Check out Orion's smallest AC fans — the OA60AP Series. Features: Aluminum Die Cast Frames Low
- Application: Industrial/Commercial
- Bearings: Ball / Roller
- Diameter: 6.7 inch
- Maximum Air Flow: 235 SCFM
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Supplier: Allied Electronics, Inc.
Description: Orion heavy-duty AC fans are in use worldwide in all types of applications. Designed and manufactured to exacting UL, cUL, TÜV and/or VDE approvals. Check out Orion's smallest AC fans — the OA60AP Series. Features: Aluminum Die Cast Frames Low
- Application: Industrial/Commercial
- Bearings: Ball / Roller
- Diameter: 6.7 inch
- Maximum Air Flow: 235 SCFM
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Supplier: Vision Research
Description: family of 1 megapixel digital ultra high-speed cameras, with over 30% more speed than the v1212. It is an excellent tool for researchers, scientists and engineers who need to capture high-resolution images at ultra-high speeds. With our proprietary widescreen CMOS
- Camera Function: Video
- Features: Gain Control, Gamma Correction
- Horizontal Resolution: 128 to 1280 lines
- Imaging Technology / Camera Type: CMOS
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Supplier: Vision Research
Description: Convenient “Quiet Fans" mode turns off fans for vibration-sensitive applications When you need the absolute maximum speed available in the industry, the Phantom v2512 camera is your answer. Designed with speed and flexibility at the forefront, it is an excellent tool for
- Camera Function: Video
- Features: Gain Control, Gamma Correction
- Horizontal Resolution: 128 to 1280 lines
- Imaging Technology / Camera Type: CMOS
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Supplier: Vision Research
Description: Convenient “Quiet fans” mode turns off fans for vibration-sensitive applications The Phantom v1212 camera is a no-nonsense workhorse member of Phantom® UHS-12 Series family of 1 megapixel digital ultra high-speed cameras and is designed with versatility and flexibility in mind
- Camera Function: Video
- Features: Gain Control, Gamma Correction
- Horizontal Resolution: 128 to 1280 lines
- Imaging Technology / Camera Type: CMOS
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Supplier: Vision Research
Description: 10Gb Ethernet Convenient "Quiet Fans" mode turns off fans for vibration-sensitive applications The Phantom v2012 camera is a powerhouse in the Phantom® UHS-12 Series family of 1 megapixel digital high-speed cameras, providing an excellent tool for critical
- Camera Function: Video
- Features: Gain Control, Gamma Correction
- Horizontal Resolution: 128 to 1280 lines
- Imaging Technology / Camera Type: CMOS
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Supplier: Twin City Fan & Blower
Description: Application The BCN is a lower volume, higher pressure fan which utilizes a high efficiency, backward curved, non-overloading blade design. The BCN offers a lower specific speed design featuring single thickness blades, suitable for industrial processes involving clean to light
- Air Flow Rate: 700 to 75000 SCFM
- Applications: Air Handling Units / HVAC, Pressure / Pressurization Blower
- Environment: Clean Air / Gas
- Maximum Diameter (Fan or Blower Wheel): 27 to 73 inch
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Supplier: Texas Instruments
Description: Dual 1:5 High Speed LVPECL Fan Out Buffer 32-VQFN -40 to 85
- Gate Type: Buffer / Driver
- Operating Temperature: -40 to 85 C
- Package Type: Other
- Supply Voltage: 2.5 V, 3.3 V
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Supplier: Maxim Integrated
Description: The MAX6620 controls the speeds of up to four fans using four independent linear voltage outputs. The drive voltages for the fans are controlled directly over the I²C interface. Each output drives the base of an external bipolar transistor or the gate of a FET in
- Device Type / Applications: Other
- IC Package Type: QFN
- Pin Count: 28 #
- RoHS Compliant: Yes
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Supplier: Sanyo Denki America, Inc.
Description: SANYO DENKI CO., LTD. has developed and introduced the 120 × 120 × 38 mm high airflow long life fan "San Ace 120L" 9LG type. This long life fan has the highest airflow in the industry.*1 The San Ace 120L 9LG type is an ideal cooling solution for mobile communication
- Application: Industrial/Commercial
- Blower / Fan Type: Axial Fan
- Casing / Enclosure Dimension: 4.72 inch
- Maximum Air Flow: 75.2 to 176 SCFM
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Supplier: National Fan Company
Description: High Velocity Heavy Duty Drum Fan : 24 in blade - 2 Speed (7,000 CFM) - bestThese High Velocity Round Portable Fans Circulate Large Volumes of Air. Economical, easy to move. FEATURES: • Heavy 18 guage, powder coated steel housing. • Factory balanced blade
- Air Flow Rate: Up to 7000 SCFM
- Design Configuration: Other
- System: Packaged (Complete System)
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Supplier: National Fan Company
Description: High Velocity Heavy Duty Drum Fan : 36 in blade - 2 Speed (12,000 CFM) - bestThese High Velocity Round Portable Fans Circulate Large Volumes of Air. Economical, easy to move. FEATURES: • Heavy 18 guage, powder coated steel housing. • Factory balanced blade
- Air Flow Rate: Up to 12000 SCFM
- Design Configuration: Other
- System: Packaged (Complete System)
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Supplier: Allegro Industries
Description: This blower offers greater flexibility by allowing workers to use high speed in some applications such as purging an area, and the lower speed in other sites such as very dusty environments. The 8" ports allow for positive or negative ventilation and the steel box mounted
- Applications: Air Handling Units / HVAC
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Supplier: National Fan Company
Description: High Velocity General Duty Drum Fan : 42 in blade - 2 Speed (15,000 CFM)-better For Light Commercial Applications. FEATURES: • Heavy 18 guage, powder coated steel housing. • Factory balanced blade • 2 speed dial switch
- Design Configuration: Other
- Maximum Diameter (Fan or Blower Wheel): 42 inch
- System: Packaged (Complete System)
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Supplier: National Fan Company
Description: High Velocity General Duty Drum Fan : 36 in blade - 2 speed (9,600 CFM)-better For Light Commercial Applications. FEATURES: • Heavy 18 guage, powder coated steel housing. • Factory balanced blade • 2 speed dial switch
- Air Flow Rate: 9600 SCFM
- Design Configuration: Other
- Maximum Diameter (Fan or Blower Wheel): 36 inch
- System: Packaged (Complete System)
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Supplier: Xoxide
Description: . Available in low, medium and high speeds. Specification: Dimensions: 92 x 92 x 25mm Air Flow: 40.32 CFM Speed: 2200 RPM Noise: 29.5 dBA Current: 0.17A
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Supplier: Xoxide
Description: . Available in low, medium and high speeds. Specification: Dimensions: 120 x 120 x 25mm Air Flow: 60.23 CFM Speed: 1900 RPM Noise: 33.8 dBA Current: 0.17A
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Supplier: ISC Sales, Inc.
Description: guards Meets OSHA standards 1 year limited warranty Made in U.S.A. Corrosion and dent proof high density housing Motor Specifications: 1-Phase 1/4 HP Ball bearing Totally enclosed 120V 2-Speed Permanently lubricated Permanent split capacitor
- Air Flow Rate: 6000 to 7800 SCFM
- Applications: Personnel (Mancooler, Box Fans, etc.)
- Design Configuration: Axial
- Drive Options: Direct Drive
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Supplier: Sanyo Denki America, Inc.
Description: , communications equipment, and power supplies. This product has the PWM control function, designed for controlling the rotational speed of the fan from the device side. High Static Pressure Maximum static pressure is increased by approximately 2.5 times compared with our
- Application: Industrial/Commercial
- Blower / Fan Type: Axial Fan
- Casing / Enclosure Dimension: 3.62 inch
- Maximum Air Flow: 180 SCFM
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Supplier: Sanyo Denki America, Inc.
Description: SANYO DENKI CO., LTD. has developed and introduced the 60 × 60 × 25 mm high air flow long life fan "San Ace 60L" LG type. This cooling fan delivers the highest air flow, longest life, lowest noise level and least power consumption in the industry.*1 The San Ace 60L LG
- Application: Industrial/Commercial
- Blower / Fan Type: Axial Fan
- Casing / Enclosure Dimension: 60 inch
- Maximum Air Flow: 27.55 SCFM
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Supplier: Sanyo Denki America, Inc.
Description: SANYO DENKI CO., LTD. has developed and introduced the 92 × 92 × 25 mm high air flow long life fan "San Ace 92L" LG type. This cooling fan delivers the highest air flow, longest life, lowest noise level and least power consumption in the industry.*1 The San Ace 92L
- Application: Industrial/Commercial
- Blower / Fan Type: Axial Fan
- Casing / Enclosure Dimension: 90 inch
- Maximum Air Flow: 68.16 SCFM
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Supplier: Xoxide
Description: your PC’s cooling with the 120mm OEM Silent Fan from Xoxide! Dimensions: 120 x 120 x 25mm Air Flow: 88 CFM Speed: 2200 +/- 10% RPM Noise: 40 dBA Connector: 3-Pin RPM Sensing & 4
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Supplier: InspectorTools
Description: fans will run all day at any speed without over heating. The Variable Frequency Drive creates the 3-phase power but uses regular single phase wall outlet power; either 110 or 240 Volts! One DM-2A measures and controls one fan automatically, a second DM-2A displays flow pressure
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Supplier: Charles Ross & Son Company
Description: Conventional High Speed Dispersers consist of a driven vertical shaft and a high shear disk type blade. The blade rotates at up to 5000 fpm and creates a radial flow pattern within a stationary mix vessel. The blade creates a vortex that pulls in the contents of the vessel to
- Additional Features: Explosion Proof
- Local Interface: Analog Front Panel
- Media Type: Liquids, Solutions, Emulsions, Suspensions, Slurries, Pastes, Colloids, Powders or Granules
- Media Viscosity: 50000 cps
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Supplier: New York Blower Company (The)
Description: The Vaneaxial Adjustable Pitch Fans are designed and constructed for high-pressure applications found in heavy industrial-process applications such as air-assisted flares, combustion air, process supply and exhaust. Adjustable pitch design conveniently allows for performance
- Air Flow Rate: 0.0 to 120000 SCFM
- Design Configuration: Axial
- Drive Options: Direct Drive
- Environment: Clean Air / Gas, Dirty Air / Gas, Smoke
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Supplier: Maxim Integrated
Description: ), and other ASICs. Multiple temperature thresholds, such as local high/overtemperature (OT) and remote high/overtemperature , can be set by an I2C-compatible interface. Fan speed is controlled based on the temperature reading as an index to a 48-byte lookup table (LUT
- Device Type / Applications: Other
- IC Package Type: QSOP
- Pin Count: 16 #
- RoHS Compliant: Yes
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Supplier: Electro-Sensors, Inc.
Description: double relay) feature rotary dials for precise setpoint adjustment and can be completely calibrated with the machinery at rest. Digital circuitry provides high accuracy, repeatability, and reliability. They are the industry standard for protecting bucket elevators, fans, airlocks,
- AC Voltage Rating: 250 volts
- Contacts: SPDT
- DC Voltage Rating: 30 volts
- Explosion Proof: Yes
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Supplier: TPI Corporation
Description: INDUSTRIAL WORKSTATION FLOOR FAN TYPE 25 INCH 27 INCH 10 FT CORD LENGTH ALUMINUM BLADE MATERIAL 1 YEAR LIMITED WARRANTY 3 SPEED(S) 3 BLADE(S) LOW/MEDIUM/HIGH SPEED SETTINGS HIGH STAND TYPE NO
- Material: Aluminum
- Maximum Diameter (Fan or Blower Wheel): 25 inch
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Supplier: TPI Corporation
Description: INDUSTRIAL WORKSTATION FLOOR FAN TYPE 30 INCH 27 INCH 10 FT CORD LENGTH ALUMINUM BLADE MATERIAL 1 YEAR LIMITED WARRANTY 3 SPEED(S) 3 BLADE(S) LOW/MEDIUM/HIGH SPEED SETTINGS HIGH STAND TYPE NO
- Material: Aluminum
- Maximum Diameter (Fan or Blower Wheel): 30 inch
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Supplier: TPI Corporation
Description: INDUSTRIAL WORKSTATION FLOOR FAN TYPE 26 INCH 10-1/2 INCH 10 FT CORD LENGTH ALUMINUM BLADE MATERIAL 1 YEAR LIMITED WARRANTY 3 SPEED(S) 3 BLADE(S) LOW/MEDIUM/HIGH SPEED SETTINGS FLOOR STAND TYPE NO
- Material: Aluminum
- Maximum Diameter (Fan or Blower Wheel): 26 inch
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Supplier: TPI Corporation
Description: INDUSTRIAL WORKSTATION FLOOR FAN TYPE 20-1/2 INCH 10-1/2 INCH 10 FT CORD LENGTH ALUMINUM BLADE MATERIAL 1 YEAR LIMITED WARRANTY 3 SPEED(S) 3 BLADE(S) LOW/MEDIUM/HIGH SPEED SETTINGS FLOOR STAND TYPE NO
- Material: Aluminum
- Maximum Diameter (Fan or Blower Wheel): 20.5 inch
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Supplier: Fläkt Woods Group SA
Description: and GTHB fans The backward-curved blades in the GTLB fans have the same aerodynamic characteristics as those in the GTHB fans, but the GTHB is a reinforced version for higher speeds. The design of the fan inlet is of vital importance to achieve high
- Air Flow Rate: 57210 SCFM
- Applications: Air Handling Units / HVAC
- Design Configuration: Centrifugal
- Drive Options: Belt Drive
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Supplier: Fläkt Woods Group SA
Description: and GTHB fans The backward-curved blades in the GTLB fans have the same aerodynamic characteristics as those in the GTHB fans, but the GTHB is a reinforced version for higher speeds. The design of the fan inlet is of vital importance to achieve high
- Air Flow Rate: 105944 SCFM
- Applications: Air Handling Units / HVAC
- Design Configuration: Centrifugal
- Drive Options: Belt Drive
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Supplier: Boyd
Description: variety of speeds, voltages, and function types. A number of ball bearing fans are in stock and available for purchase online, however Aavid manufactures hundreds more options as well as custom fans and fan systems. All standard fans can be paired with an Aavid
- Application: Industrial/Commercial
- Bearings: Ball / Roller
- Motor Type: DC
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Supplier: bulbs.com
Description: SeaGull Lighting 52" Ceiling Fan, White with White Blades, Celebrity Deluxe Collection. 52" Diameter, 12 21/32" High. Energy star rated. Lifetime ceiling fan warranty. Minimum ceiling height 7 7/8 feet. Blade pitch 13 degrees. Three speed reversible motor. Extra long 6
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Supplier: bulbs.com
Description: SeaGull Lighting 52" Ceiling Fan, Mahogany Dark, Celebrity Deluxe Collection, Brushed Nickel. 52" Diameter, 13 21/32" High. Energy star rated. Lifetime ceiling fan warranty. Minimum ceiling height 7 7/8 feet. Blade pitch 13 degrees. Three speed reversible motor. Extra
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Supplier: bulbs.com
Description: SeaGull Lighting 52" Ceiling Fan, White with White Blades, Quality Max Collection. 52" Diameter, 12 19/32" High. Energy star rated. Lifetime ceiling fan warranty. Minimum ceiling height 8 feet. Flush mount 9 1/4", canopy included. Blade pitch 11 degrees. Three speed
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Supplier: bulbs.com
Description: SeaGull Lighting 52" Ceiling Fan, White with White Blades, Long Beach Collection. 52" Diameter, 14 3/16" High. Energy star rated. Lifetime ceiling fan warranty. Minimum ceiling height 7 19/32 feet. Blade pitch 12 degrees. Three speed reversible motor. Extra long 6 1/2
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Supplier: Capital Lighting, Inc.
Description: Motor size: 153x13 Manufacturer's Warranty: Limited 30 Year Blade pitch: 12 Blade span: 52 Blade type: Cream Electricity Use: 65 Light Kit: Sold Separately Speeds: 3-Speed, RPM: Low - 82/High - 195 Optional Control: Pull Chain Reverse Air: Yes Airflow Efficienty: 5249 Airflow
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above are at full speed, 460-V & 60 Hz. The fans employ six winglet-style blades designed to reduce noise by up to three (3) dBA and boost fan performance by decreasing turbulence at the wing tips. This improves fluid dynamics and increases fan output, providing a steep airflow (read more)
Browse HVAC Fans and Blowers Datasheets for Rosenberg USA -
Qualtek AC centrifugal fans are commonly used in HVAC systems, air handling units, and industrial applications where high airflow rates and static pressures are required. They are typically more powerful and efficient than AC axial fans and are better suited for applications that require (read more)
Browse Fans and Blowers (industrial) Datasheets for Qualtek Electronics Corp. -
Spur gears are generally seen as best for applications that require speed reduction and torque multiplication, such as ball mills and crushing equipment, or Examples of high-speed applications that use spur gears – despite their high noise levels – include consumer appliances such as (read more)
Browse Gears Datasheets for Chengdu Leno Machinery Co., Ltd. -
Our high-performance Flywheel large cooling fans and motors do just that, featuring extraordinary rotational speed and airflow capabilities that are required in HVAC, medical and industrial applications. This smart and flexible alternative will reduce your costs and time-to-market. Contact Us (read more)
Browse Electronic Cooling Fans Datasheets for Pelonis Technologies, Inc. -
Customized products that meets your specs, delivered on time and stay in budget. Our high-performance Flywheel large cooling fans and motors do just that, featuring extraordinary rotational speed and airflow capabilities that are required in HVAC, medical and industrial applications. COOL, CALM CUSTOMIZED! CONTACT US TODAY (read more)
Browse Fans and Blowers (industrial) Datasheets for Pelonis Technologies, Inc. -
Pelonis Technologies -K9238-7 series fans can also be designed to perform in environments where there is significant dust, moisture and direct water exposure. Proprietary conformal coating technology is environmentally friendly, has low friction characteristics, and is (read more)
Browse Electronic Cooling Fans Datasheets for Pelonis Technologies, Inc. -
— Oversized for long life and continuous duty. Oil, heat and static resistant type. Belt Drive, Low Speed, High Volume Ring Fan, Standard or Reverse Flow Airfoil Blades — Aluminum alloy castings. Hub — Cast aluminum threaded to (read more)
Browse Fans and Blowers (industrial) Datasheets for Hartzell Air Movement -
Vaneaxial Adjustable Pitch Fans are designed and constructed for high-pressure applications (read more)
Browse Fans and Blowers (industrial) Datasheets for New York Blower Company (The) -
ECOFIT Single- And Double-Inlet Centrifugal Fans Rosenberg offers its UL-listed ECOFIT centrifugal fans in a range of air flows, power levels, rotational speeds, noise levels, dimensions and finishes. The fans are an ideal fit in high (read more)
Browse HVAC Fans and Blowers Datasheets for Rosenberg USA -
The new Gen 3+ fans will come in sizes 450/500/560/630-mm and will offer all the features and benefits of Rosenberg’s innovative Gen 3 motors, plus more power – up to 7 kW. The new motors are 100% speed controllable and are CE, UL and RoHS approved. The first Gen 3 (read more)
Browse Electronic Cooling Fans Datasheets for Rosenberg USA
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Integrated Power Loss Brake Features Lower Energy Consumption and Reduce Costs in Data-Center Fan Applications
Modern server applications need uninterrupted service. Accommodating this requirement can result in adverse scenarios-from inefficient airflows created by reverse-rotating fan blades that have lost power to dangerous maintenance and repair procedures conducted in the presence of high-speed fan
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Low Power Consumption Fan
In recent years, information and communication equipment such as computer servers, IP routers, and RAID devices has become high speed and large capacity, which has led to trend for higher heat generation. Also, high density inside equipment has made it difficult to take countermeasures against heat
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Electric Fans Brushless DC Motor
Most of the electric fans on the market now use traditional AC motors, which have a limited service life, inconvenient maintenance, high energy consumption, and low motor controllability. To satisfy people in different usage scenarios and different usage environments, a wide range of adjustable
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An Integrated Fan Speed Control Solution Can Lower System Costs, Reduce Acoustic Noise, Power Consumption and Enhance System Reliability
of a few years, technological and other developments have made thermal cooling necessary for many applications, thus requiring the development of a new system management category: thermal management.This article discusses an integrated fan speed solution that provides sophisticated speed control
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Brushless DC Motor For Electric Fans Solutions
Electric fans are one of the most commonly used household appliances. They have many types and are widely used. However, the current electric fans mainly use AC motors with very high power, usually above 60 watts, which consumes a lot of power. As a small household appliance that needs to be turned
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Custom Motors Platforms for BLDC Motors in Electric Fan
Most of the electric fans on the market now use traditional AC motors, which have a limited service life, inconvenient maintenance, high energy consumption, and low motor controllability. To satisfy people in different usage scenarios and different usage environments, a wide range of adjustable
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CARBOJET (R) High-speed Gas Injection in a Pit Furnace
Sennestahl was concerned about the time and money it was spending on maintenance and on the replacement of ventilator fans, which were being damaged due to vibration. The company was also concerned about a sooting problem that was affecting the parts carburized in the upper part of the furnace
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Passive noise reduction - options for axial and centrifugal fans, Appliance DESIGN, February 2015
One undisputed requirement for a high performance system is the. ability to closely match its output to the actual demand. Comfort, health, process variance, sound emissions, and energy performance benefit from enabling motors for variable speed operation. What are the potential side effects
More Information Top
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https://customer.honeywell.com/resources/techlit/TechLitDocuments/63-0000s/63-4309.pdf
High Speed Fan Minimum HI_MIN_ON .
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https://customer.honeywell.com/resources/techlit/TechLitDocuments/63-0000s/63-2700.pdf
RELAY 1, DPDT RELAY, NO CONTACTS ENERGIZE DIGITAL INPUT 4 FOR HIGH SPEED FAN WITH W1 CALL.
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https://customer.honeywell.com/resources/techlit/TechLitDocuments/62-0000s/62-0331.pdf
To achieve this, wire relays as shown, and configure the VFD to the minimum frequency M3.3.1 for low speed fan, and for high speed fan configure Preset frequency 1, M3.3.12.
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https://customer.honeywell.com/resources/techlit/TechLitDocuments/63-0000s/63-8594.pdf
With 2-speed fan units MIN POS L (low speed fan) and MIN POS H ( high speed fan ) settings are required.
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The Mechanics and Physics of Modern Grain Aeration Management
Therefore, for fans with the same wheel diameter, slower speed fans are inherently quieter than higher speed fans .
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Fluid Dynamics and Heat Transfer of Turbomachinery Complete Document
Adamczyk, J. J., Celestina, M. L., and Greitzer, E. M., 1991, "The Role of Tip Clearance in High Speed Fan Stage," ASME Paper 91-GT-83.
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http://www.cisco.com/web/strategy/government/ny/docs/ny_product_03_01_07.pdf
High Speed Fan Module for CISCO7606 Chassis .
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http://www.cisco.com/web/strategy/government/ny/docs/Product_Price_List_11_25_08_Rev2.pdf
7603S High Speed Fan Module .