Compare Scroll vs Rotary Compressor Costs
Scroll Air Compressor Overview
Scroll air compressors are commonly used in air conditioning and refrigeration equipment to compress refrigerated air. They can be used for other industrial applications, although that is less common.
Scroll air compressors, also known as scroll pumps or scroll vacuum pumps, were not in widespread use for HVAC and refrigeration until the 1980s. But today they are common in all types of residential and commercial cooling systems, such as air conditioners and refrigeration units.
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Scroll Air Compressor Pros
- Cooling capacity - Scroll compressors have a much greater cooling capacity than other types of compressors, which explains whey they’re used for HVAC and refrigeration applications.
- Efficiency - Scroll compressors use less power to run. They also run smoothly and quietly.
- Size/configuration - They are smaller and more compact than many other types of compressors. They also have a more streamlined design with fewer parts, meaning fewer parts that can break down.
Scroll Air Compressor Cons
- Price - Scroll air compressors are relatively expensive compared to other types of compressors.
- Heat - The compressed air gets much hotter in a scroll compressor than in other types of compressors.
- Tough to repair - If one part of scroll compressor fails, there’s a good chance that you’ll have to buy a whole new machine. Scroll compressors are difficult to repair or rebuild.
Rotary Air Compressor Overview
A rotary air compressor is a type of air compressor that relies on two rotating elements, such as gears or screws, to pressurize air. Rotary compressors have a wide variety of commercial and industrial applications. They can be used in refrigeration systems, but they’re not as common in that application as scroll compressors.
Rotary Air Compressor Pros
- Power - These are the most powerful compressors, supplying a large amount of compressed air.
- Temperature - Rotary air compressors don’t get as hot.
Rotary Air Compressor Cons
- Complex design - Rotary air compressors have a much more complex design, meaning more parts that can fail. Regular maintenance is very important.
- Need frequent use - If a rotary air compressor is not used often, water condensation will lead to rusting.