How to Choose the Right Electric Motors for Your Industry

August 6, 2025

Cascade Machinery is one of the longest and most trusted distributors of compressed air systems in the Northwest. Our air compressors are used in a wide range of commercial applications from industrial, construction, manufacturing, municipal and more.

While the multitude of products can be confusing, we can help you determine the best solution given your industry and operation size. Do you choose a rotary screw or piston compressors? How large should your compressor be to manage your operation?

Rotary screw compressors are the ideal choice for heavy industrial work when large amounts of high-pressure air are needed. They are quiet and only work when needed.

HVAC Electric Motors

Brand: ABB-Baldor

Baldor's line of Heating, Ventilation, and Air Conditioning Motors are designed with dynamically balanced rotors for reduced vibration and quiet operation. The motors range in size from 1/4 HP to 75 HP and include heavy duty industrial designs as well as designs for commercial applications.

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How Rotary Screw Compressors Work

Air enters the screw compressor and is compressed by the screw element. Within the screw element, oil is injected generating various levels of pressure. The oil also mitigates heat generated through the compression process. Heat is absorbed by the oil and the oil is filtered before passing through the system once more. The oil is separated from the air before the air is released.

Oil should be changed every 7000-8000 hours. Air Filters, on the other hand, should be cleaned weekly, especially if you are in a dusty facility. This will extend the life of the oil and compressor as well.

When you start the screw compressor, the pressure builds to your designated set point then shuts off until the pressure drops via usage. As demand increases, the compressor will turn back on to restore pressure.

Rotary Screw Compressors are primarily used for industrial application where continuous air pressure is needed. The main benefits are noise reduction and lower energy usage.

Farm Duty Electric Motors

Brand: ABB-Baldor

These motors are designed for many of the varied applications found on the farm. Designs include motors suitable for aeration fans, auger drives, grain stirring, metering pumps, instant reversing, irrigation tower drives, and crop driers.

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Benefits of the Rotary Screw

Reduced weight compared to other compressors
Low maintenance because there are fewer parts to maintain and replace
Low oil consumption
Reliable in harsh environments
Easy and simple maintenance procedures
Low vibration
Less heat generation than other compressors

Depending on the size of your operation you may need a dryer to mitigate water from your compression systems. Compressed air systems thrive in dry environments.

Water can be destructive and reduce the lifespan of your equipment, creating unnecessary repair and replacement expenses. Water damages electrical systems and is especially troublesome for those in the food and pharmaceutical industries.