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Centrifugal Blowers and Packaged Blowers

Kooltronic Centrifugal Blowers and Packaged Blowers are a durable and economical choice to cool electrical enclosures using a steady flow of ambient air against differing static pressures. We offer a variety of sizes and airflow capacities (CFM), with options that are specifically engineered to meet your cooling or ventilation requirements. Kooltronic Centrifugal Blowers are designed for performance against a variety of static pressures with easy mounting in any position required for maximum cooling efficiency. Our Packaged Blowers are well-suited for data racks and equipment that can operate at temperatures above ambient and against moderate static pressures, while also providing adequate filtration. All Kooltronic Blowers are designed to isolate vibration of rotating parts from housings and mounting flanges for smooth, quiet, trouble-free operation.

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basic and packaged blowers

Kooltronic Centrifugal Blowers are available in five series designations as well as a variety of impellers to meet the cooling and air handling needs of our customers. The series of blowers includes: Single, High Pressure Centrifugal, High Pressure Radial, Double Centrifugal, Quadraplex and Motorized Impellers. These blowers may be mounted in any position required for maximum cooling efficiency in any given application. Easily installed, Centrifugal Blowers are a low-cost alternative to other enclosure cooling options.

General specifications common to all Kooltronic blowers include a custom-engineered ball-bearing motor designed for low temperature rise under zero static conditions. Added assurance of long, trouble-free operation is provided by the application of fan cooling or by drawing a small portion of the intake air directly through the motor and past the bearings. Because of this, service failures are almost nonexistent.

Modifications to inlets or outlets, special mounting flanges, brackets, supports or other sheet metal changes are possible to meet the needs of your specific application. In addition, Kooltronic designs and manufactures a variety of blowers to meet unique or custom specifications. If a blower will not satisfy your application's requirements, please inquire about our other electrical enclosure and cabinet cooling product lines including air conditioners, heat exchangers and fans.


Kooltronic Packaged Blowers combine a specially-designed air blower in a metal housing, with a filter and grille. Our collection of Packaged Standard Twin Blowers, Recessed Twin Blowers, EMI/RFI-Shielded Twin Blowers and Broad Discharge Twin Blowers comprise one of the most extensive and versatile standard product lines available. When combined with selections from our complete array of accessories and options, these blowers can provide the solution to virtually every application requiring a packaged unit utilizing ambient air for cooling.

All Kooltronic blowers are designed to isolate vibration of rotating parts from housings and mounting flanges for smooth, quiet, trouble-free operation. If a packaged blower is not the right product for your application, other electrical enclosure and cabinet cooling products to consider are air conditioners, heat exchangers and fans.

Which Open-Loop Cooling Solution is Right For My Application?

Which Open-Loop Cooling Solution is Right For My Application?

Which Open-Loop Cooling Solution is Right For My Application?

Which Open-Loop Cooling Solution is Right For My Application?

Basic Blowers

Single Centrifugal Blower
  • CFM Capacity Range: 60-425
  • For Low to Moderate Static Pressures
  • Available in 7 Sizes & Capacities
  • Full Performance in any Mounting Position
View Models

Basic Blowers

High Pressure Centrifugal Blower
  • CFM Capacity Range: 160-475
  • Designed for Mid-Range Static Pressures
  • Available in a Variety of Sizes
  • Full Performance in any Mounting Position
View Models

Basic Blowers

High Pressure Radial Blower
  • CFM Capacity Range: 55-265
  • Designed for Substantial Static Pressures
  • Available in a Variety of Sizes
  • Full Performance in any Mounting Position
View Models

Basic Blowers

Double Centrifugal Blower
  • CFM Capacity Range: 155-1,200
  • Provide Greater Airflow vs. Single Blowers
  • Available in a Variety of Sizes
  • Full Performance in any Mounting Position
View Models

Basic Blowers

Quadruplex Centrifugal Blower
  • CFM Capacity Range: 320-920
  • Quiet, Efficient Operation
  • Available in a Variety of Sizes
  • Full Performance in any Mounting Position
View Models

Basic Blowers

Motorized Impeller Blower
  • CFM Capacity Range: 215-2,070
  • Available: 115V, 230V, 50/60Hz, 24 or 48 VDC
  • Low Noise Level
  • Compact Size
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Packaged Blowers

Standard Twin Blower
  • CFM Capacity Range: 160-800
  • Attractive 19" Stainless Steel Grilles
  • Unique Design Provides Maximum Airflow
  • Includes Exhaust Guards
View Models

Packaged Blowers

Recessed Twin Blower
  • CFM Capacity Range: 130-800
  • Attractive 19" Stainless Steel Grilles
  • Unique Design Provides Maximum Airflow
  • Includes Exhaust Guards
View Models

Packaged Blowers

EMI/RFI Shielded Twin Blower
  • CFM Capacity Range: 130-800
  • High Degree of EMI/RFI Attenuation
  • Sleek Design Provides Maximum Airflow
  • Includes Exhaust Guards
View Models

Packaged Blowers

Broad Discharge Twin Blower
  • CFM Capacity Range: 270-750
  • Even Distribution of Air
  • Attractive 19" Stainless Steel Grilles
  • Includes Exhaust Guards
View Models

Packaged Blowers

Pagoda Series
  • CFM Capacity Range: 180-1,615
  • Occupies No Cabinet Space
  • Maximum Performance with Minimal Noise
  • Heavy-Gauge Steel Shell
View Models
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Kooltronic, Inc.
30 Pennington-Hopewell Road
Pennington, NJ 08534 USA
609-466-3400
800-321-KOOL
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