5 Reasons Why Your Business Needs scroll air compressor manufacturers？

Scroll air compressors have been around for decades but it wasn’t until recently that they became a major player in the compressed air industry. Today, oil free scroll air compressors are well proven, and well received, in medical/research and development (R&D) laboratories, pharmaceutical and toxicology and forensic testing facilities. Labs use air in their nitrogen generation process, which requires air purity and clean, dry compressed air.

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First, on how scroll technology works. Within each scroll compressor are two interleaving scrolls: one orbiting and one fixed. Atmospheric air entering the compression chamber is gradually reduced as the orbiting scroll rotates. Compressed air is exhausted through the outlet at the center. Because air movement is continuous from the suction port through the discharge port, scroll compressors provide pulsation-free delivery of oil free compressed air.

Why are oil free scroll air compressors popular in medical and laboratory applications? There are many reasons but the top five include:

1. They provide clean, oil free air

Sullair scroll compressors – the SRL Series – provide 100% oil free air for these critical applications. SRL Series compressors are certified Class 0 (oil free) under ISO-1. Oil free compressors help eliminate potential contamination as no oil or lubricant is introduced into the air compression process.

2. They provide an ultra quiet operation

When you walk into a laboratory, it’s often like walking into a library. Loud noise is a problem in medical, lab and testing facilities, making oil free scroll air compressors the solution.

Scroll compressors are not just quiet — they’re ultra quiet. SRL Series compressors offer noise levels as low as 48 dBA, making them suitable for indoor applications. To compare, libraries are typically around 40 dBA. This means scroll compressors also do not require a separate sound attenuated room. Scroll compressors can even be installed at point-of-use, resulting in lower installation and piping costs.

3. Worried about space? They require very little

Scrolls have the advantage of a smaller footprint, which minimizes the floor space needed. We’ve found many labs tend to put the scroll compressor in a closet, which is another advantage, as a designated compressor room is not required.

4. Operation and maintenance is a breeze

SRL Series scroll compressors are known for their simplicity and reliability. The scroll design has a minimal number of moving parts, helping ensure a long operating life. If maintenance is needed, the unit is easily accessible for inspection and repairs.

5. They produce only the amount of air required

Maximizing efficiency means more than just having an efficient air compressor. One benefit specific to Sullair SRL Series oil free scroll air compressors is they have a built-in logic to help utilize the air compressors most efficiently. A patented process modifies operation by shutting down compressor pumps not needed and lowering maximum pressure setting automatically.

This not only saves wear and tear on the compressor, but also provides energy savings by not producing unneeded air. In other words, there are additional cost savings.

With the longevity of the SRL Series’ pumps, the compressors typically see a lifetime of 15,000 hours, which is typically 5,000 more operating hours than some competitive units. This presents another cost savings opportunity.

To understand the different types and technologies of compressors, we first need to understand the two basic principles of compressing air. These are dynamic and displacement compression. In this article, we talk about the scroll compressor. This is a type of displacement compressor with wide applications in air-conditioning and refrigeration systems, heat pumps, and cars. 

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Scroll compressors consist of two spiral-shaped scroll elements that are bolted together: a stationary scroll and an orbiting scroll driven by a motor. The process of compressing air in a scroll compressor involves several steps:

1. Oscillation: The scrolls oscillate in a continuous motion without metal-to-metal contact, compressing air in crescent-shaped pockets.
2. Orbiting Scroll Motion: The orbiting scroll, driven by a short-stroke crankshaft, moves eccentrically around the fixed scroll, creating suction that draws air in from the inlet at the top of the housing.
3. Compression: Air captured in pockets between the scrolls is gradually compressed as it moves toward the center.
4. Discharge: Compressed air is discharged from the outlet port at the center, where a non-return valve prevents backflow.
5. Stability: The 180° phase displacement provides radial stability, and the internal compression minimizes leakage due to lower pressure differences between air pockets.

By following these steps, scroll compressors achieve efficient and reliable air compression.

When most people think of air compressors, they probably imagine a bulky and loud machine. Scroll compressors are pretty much the opposite of that. They are oil-free, compact and relatively silent compared to other types of compressors.

Thanks to the simple design of the scroll compressor with only one moving part, this type of compressor is highly reliable and quieter compared to the piston and rotary screw compressor. This makes them perfect for sensitive working environments, like a dentist’s office. Another advantage of scroll compressors is energy efficiency. 

Similar to internal compression in a screw compressor, the amount of internal compression is determined by the discharge port. Due to the unique design of the discharge port, the scroll air compressor can compress more air or gas while using minimal power.

Compared to other compressors, these machines attain the highest efficiency level by volume. This is because there are no pistons to compress the gas.

The noise emission of a scroll air compressor is significantly lower than other compressors. The complete compression cycle takes 2.5 turns, including the suction, compression, and discharge revolution phases. These occur simultaneously while providing a constant flow of pulsation-free air.

The scroll air compressor offers smooth and vibration-free operations thanks to its scroll element. It hardly has any torque variation compared to a piston compressor. The simple design of the scroll air compressor contains only one moving part. This makes it highly reliable and quieter than equivalent piston and rotary screw compressors.

Scroll compressors are widely used in various industrial applications due to their efficiency and reliability. They meet the basic requirements of a general-purpose compressor and are commonly used in the food, refrigeration, air-conditioning, and transportation industries. For larger volume demands, oil-injected screw compressors may be more efficient.

There is an abundance of applications for quiet and energy-efficient compressors that produce absolutely clean air. Take the SF scroll compressor series from Atlas Copco, which has been a leader in this field for more than 60 years. Its unique characteristics make it ideal for many manufacturing processes for which clean, oil-free compressed air is a prerequisite. That is why the SF is the preferred choice for sensitive indoor environments, like hospitals but also labs, breweries, bakeries, dairy farms, electronics manufacturing, and even lens production.

The SF series features a capacity range of 1.9 to 7.6 l/s (4.03 to 16.10 cfm), a maximum working pressure of 10 bar (145 psi), and a dew point performance as low as 2°C/36°F. Its air-cooled scroll element ensures efficiency, reliability, and durability, while the premium efficiency IE3 class motor lowers energy consumption. Most importantly, the SF series produces absolutely clean air.

We hope this guide provides a good overview of whether or not a scroll compressor makes sense for your needs. If you'd like more information, feel free to get in touch. Our team is happy to point you in the right direction.

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