Coolair 48" Wall Propeller Fan Belt Drive 366 RPM .75 HP 1 Phase

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Coolair

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Model

MBL48K-.75-1P

27254

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Product Features

Designed for quiet operation and low initial cost
Variable pitch motor pulley
Welded & painted steel fan panel with cross-frame support
Well-suited for commercial and industrial buildings.

Description

OVERVIEW

The Coolair 48" Wall Propeller Fan is engineered to provide powerful, efficient ventilation for commercial and industrial environments. Designed with a belt-driven propeller system, this fan delivers high-volume airflow at reduced noise levels, making it ideal for facilities that require consistent and dependable air circulation.

Built for versatility, the wall-mounted design is perfect for applications where roof mounting is not practical. Its durable construction ensures long-lasting performance even in demanding conditions, while the belt drive configuration reduces motor wear and enhances efficiency.

Key Features:

48-inch wall-mounted propeller design – Provides effective air movement and is ideal for applications where roof mounting is not practical.
Belt drive system – Ensures quiet, reliable, and energy-efficient operation while reducing motor wear for long-term performance.
366 RPM, .75 HP, 1 Phase motor – Delivers powerful airflow capable of meeting demanding industrial and commercial ventilation needs.
High-volume propeller design provides powerful, energy-efficient airflow for large spaces
Heavy-gauge galvanized steel housing offers durable construction that resists corrosion and extends lifespan
Precision-balanced aluminum blades are engineered for smooth, quiet, and vibration-free operation
Industrial-grade motor is fully enclosed for protection and long-term reliable performance

Warranty

American Coolair warrants that any product or part found, upon inspection by American Coolair, to be defective in material or workmanship during the limited warranty period will, at the company’s option, be repaired or replaced free of charge, f.o.b. factory. This limited warranty does not cover deterioration or wear resulting from exposure to chemicals, abrasive action, or excessive heat, as such conditions do not constitute defects. Motors are warranted only to the extent of the original manufacturer’s warranty.

The limited warranty shall not apply to products or parts that have been subjected to accidental damage, misuse, unauthorized modifications, improper installation, faulty electrical wiring, lack of proper lubrication, or failure to meet other service and maintenance requirements as outlined by American Coolair. Repair or replacement of defective parts in accordance with these terms shall constitute the complete fulfillment of American Coolair’s obligations under this limited warranty.

Disclaimer of Other Warranties:

The limited warranty stated herein is in lieu of all other warranties, whether express, statutory, or implied, including but not limited to warranties of merchantability or fitness for a particular purpose.

Limitation of Liability:

American Coolair assumes no liability for reinstallation costs, nor for any special, indirect, or consequential damages of any kind arising from the use of its products.

Durable Materials & Construction

Built with heavy-gauge galvanized steel housing, the MB fan is resistant to rust, corrosion, and wear, making it ideal for indoor and outdoor installations. The propeller blades are crafted from aerodynamically engineered aluminum to maximize airflow while reducing drag and vibration. The fan also features a heavy-duty steel motor mount and protective guard for enhanced safety and reliability. Its industrial-grade motor is fully enclosed and designed for long-term use with minimal maintenance, ensuring years of dependable performance even in rugged conditions. The Type MB Wall Propeller Fan is designed with a propeller-style blade system that provides exceptional air movement while keeping energy consumption low. Unlike smaller, less durable wall fans, the MB Series is manufactured with heavy-duty construction and precision-balanced components to ensure quiet, efficient operation in demanding environments. With American CoolAir’s reputation for engineering excellence, this fan is an industry standard for dependable wall-mounted ventilation.

Suitable Applications for Coolair Wall Propeller Fan

The versatility of the CoolAir MB Wall Propeller Fan makes it the perfect choice for a wide range of applications, including:

Warehouses & Distribution Centers: Ensure high-volume air exchange.
Manufacturing & Assembly Areas: Maintain steady ventilation and remove fumes.
Greenhouses & Agriculture: Control temperature and humidity for plants and livestock.
Commercial Kitchens & Food Prep: Reduce heat, smoke, and odors.
Gyms & Recreation Centers: Improve airflow for comfort during activities.
Storage & Utility Buildings: Prevent moisture and protect stored goods.

Product Specifications

More Information
Coolair 48" Wall Propeller Fan Belt Drive 366 RPM .75 HP 1 Phase
SKU	MBL48K-.75-1P
Weight (in lbs)	403.000000
Brand/Manufacturer	Coolair
Drive Type	Belt
Maximum CFM	19958
Sone	14.1
Propeller Diameter	48 inches
Motor RPM	366
Horsepower	3 / 4 HP
BHP	0.91
Electrical	120/240 V
Phase	Single Phase
Height	56.875
Width	56.875
Depth	37
Resources	MBL Brochure MBL Instructions MBL Specifications You will need Adobe Acrobat Reader to view PDF documents.
Safety Information	PROPOSITION 65 WARNING This product and many products on our site may contain a chemical know to the state of California to cause cancer or birth defects or other reproductive harm. For more information about Proposition 65 please Click Here.

Reviews

Questions and Answers

Customer Questions

Is professional installation required for these fans?

Professional installation isn’t required, but it’s recommended to ensure the fan is installed correctly and follows local building codes.

What maintenance is required for the MBL fan?

To keep your MBL fan running smoothly, regularly clean the fan to remove dust and debris, check and tighten the belt, lubricate the bearings as needed, and make sure the shutters and blades are working properly. For step-by-step instructions, refer to the fan’s operation and maintenance guide.

How energy efficient is the MBL fan?

The MBL fan's design minimizes energy consumption by utilizing a variable pitch motor pulley, which allows for speed adjustments to match the ventilation requirements. This feature helps in reducing energy usage while maintaining optimal airflow.

Can these fans can be used for both exhaust and supply ventilation?

Yes, the MBL fan is versatile and can be set up for either exhausting air out or supplying fresh air in. You can also add optional accessories like intake or discharge hoods to boost performance and efficiency.

Are there controllers available for controlling speed for this fans?

Yes, these fans have a variable pitch motor pulley that allows you to easily adjust the speed to fit your needs. If you’re not sure which setup or controller is right for your space, just call us and our team is ready to help you choose.