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Rotary Screw Air Compressors

The rotary screw has become the go-to for the auto industry and any industry that requires high quantities of compressed air for extended periods, with two intermeshing screws, consisting of one male and one female rotating screws.

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  • Portable or Towable Air Compressors (8)

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  • Chicago Pneumatic
  • Chicago Pnuematic - Power Technique

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AS 3D

3HP 130PSI 24GAL Rotary Screw Portable Air Compressor by ABAC

Overview Superior performance and efficiency over belt-drive piston compressors Compact and low profile design Quick, easy, and cost-effective maintenance Reduced
SKU: 4152044109
Some Models In Stock
$4,549.00 – $5,129.00
View Details
CPS 185 KDU

50 HP CPS 185 KDU T4F Mobile Air Compressor

The Chicago Pneumatic CPS 185 KDU s a single-stage oil-injected rotary screw type air compressor, powered by a liquid-cooled, four-cylinder diesel engine.
SKU: 8972422738
$46,115.00$29,840.00
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CPBg Gear Driven Rotary Screw Air Compressor By Chicago Pneumatic

20-35hp Models with ES4000 microprocessor control, temperature protected on drive side motor bearings.

40 Configurations Available
Some Models In Stock
$17,791.00 – $27,776.00
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CPCg Gear Driven Rotary Screw Air Compressor By Chicago Pneumatic

40 – 60 HP, Gear-driven, fixed speed with iPM direct drive.

48 Configurations Available
Some Models In Stock
$27,340.00 – $36,071.00
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CPF Professional Gear Driven Rotary Screw Air Compressor By Chicago Pneumatic

200-340 HP,  Gear Driven with remote monitoring

3 Configurations Available
Some Models In Stock
$73,477.00 – $115,613.00
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CPI AIR COOLED, Fixed Speed, Gear Drive Air Compressor With Permanent Magnet Motor By Chicago Pneumatic

A new series that offers you increased performance & reliability, advanced connectivity and intuitive controller with intelligence to gather insights.

64 Configurations Available
Some Models In Stock
$44,149.00 – $69,568.00
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CPI Water Cooled

CPI WATER COOLED, Fixed Speed, Gear Drive Air Compressor With Permanent Magnet Motor By Chicago Pneumatic

Custom Quoted – A new series that offers you increased performance & reliability, advanced connectivity and intuitive controller with intelligence
$44,148.00
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CPS 650 JD EB

CPS 650 JD EB Towable Compressor by Chicago Pnuematic

Standard Configuration: 110% Spill Free Containment, with remote drains. Thermostatic bypass valve, Engine preheater (glow plugs), 120V 1000W engine block
SKU: 8972422829
$229,945.00$148,235.00
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CPV 120VS PM

CPV VS PM Variable Speed Rotary Screw Permanent Magnet Motor Air Compressor By Chicago Pneumatic

40-95HP Variable Speed Compressor with Permanent Magnet Motor

SKU: 8153338171
Call For Availability
$133,717.00$89,000.00
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CPVS Variable Speed Rotary Screw Permanent Magnet Motor Air Compressor By Chicago Pneumatic

40-95HP Variable Speed Compressor with Permanent Magnet Motor

7 Configurations Available
Some Models In Stock
$42,237.00 – $51,392.00
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CPVSd Variable Speed Rotary Screw Air Compressor By Chicago Pneumatic

10-35HP Variable Speed Direct Drive Rotary Screw with ES4000

40 Configurations Available
Some Models In Stock
$14,788.80 – $38,256.00
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CPVSM Variable Speed Rotary Screw Air Compressor By Chicago Pneumatic

40-60HP Variable Speed Gear Drive Rotary Screw with ES4000

6 Configurations Available
Some Models In Stock
$34,827.00 – $43,646.00
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G15L-22 Series Rotary Screw Air Compressor By Atlas Copco

20-30HP Rotary Screw Compressors: options with Integrated Dryer and Tanks

48 Configurations Available
Some Models In Stock
$14,425.00 – $22,989.00
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G2-7 Series Rotary Screw Air Compressor By Atlas Copco

3-10HP Rotary Screw Compressors: options with Integrated Dryer and Tanks

56 Configurations Available
Some Models In Stock
$5,990.00 – $11,186.00
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G7L-15 Series Rotary Screw Air Compressor By Atlas Copco

10-20HP Rotary Screw Compressors: options with Integrated Dryer and Tanks

29 Configurations Available
Some Models In Stock
$8,596.00 – $16,785.00
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GA11+-26+ Series Rotary Screw Air Compressor By Atlas Copco

15-35HP Rotary Screw Compressors With Elektronikon Touch and Full Feature Options

40 Configurations Available
Some Models In Stock
$16,006.00 – $31,496.00
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GA15-30 Series Rotary Screw Air Compressor By Atlas Copco

20-35HP Rotary Screw Compressors With Elektronikon and Next Generation Element

72 Configurations Available
Some Models In Stock
$17,789.00 – $29,556.00
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GA22-37VSD Variable Speed Rotary Screw Air Compressor By Atlas Copco

30-50HP Variable Speed Rotary Screw Compressor with Integrated Dryer options

16 Configurations Available
Some Models in Stock
$32,080.00 – $51,852.00
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GA22-37VSDS Variable Speed Rotary Screw Air Compressor By Atlas Copco

30-50HP Next Generation Variable Speed Rotary Screw Compressor with Integrated Dryer options

16 Configurations Available
Some Models in Stock
$34,772.00 – $56,404.00
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GA30+-45 Series Rotary Screw Air Compressor By Atlas Copco

40-60HP Rotary Screw Compressors With optional Elektronikon Touch

7 Configurations Available
Some Models In Stock
$28,325.00 – $44,463.00
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GA5-11 Series Rotary Screw Air Compressor By Atlas Copco

7.5-15HP Rotary Screw Compressors With Elektronikon and Next Generation Element

48 Configurations Available
Some Models In Stock
$13,696.00 – $22,239.00
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GA5-18VSDS Variable Speed Rotary Screw Air Compressor By Atlas Copco

7.5-25HP Variable Speed Rotary Screw Compressor with Tank-Mounted and Integrated Dryer options

44 Configurations Available
Some Models in Stock
$17,059.00 – $43,644.00
View Details
MSU

MSU Rotary Screw Air Compressor By Mark

The Mark Compressor MSU Series rotary screw air compressor features asymmetric profile rotors mounted on high-quality ball and roller bearings
Some Models In Stock
$5,040.80 – $21,964.60
View Details

QGS Series Rotary Screw Compressor By Quincy

Belt Driven, economically priced rotary screw compressor package that can be used in a wide range of applications.

42 Configurations Available
Some Models In Stock
$6,173.61 – $29,339.66
View Details
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Rotary Screw Air Compressors

Operations with consistent needs for compressed air nearly always benefit from rotary screw air compressors. These compressors can flat-out run and run nonstop. The main strength of Rotary Screw Air Compressors is their continuous runtime. Continuous run time is exactly what it sounds like; the compressor is constantly compressing air, thanks to the design of the rotors. 

These compressors have become an industry staple due to their reliability, noise level, and efficiency. Using two motors, pressure is created to compress the air. The simplicity of their design makes these some of the most accessible compressors to use and maintain. The standard enclosure features technology to reduce the noise of an air pump that is much quieter than a reciprocating piston compressor. The way that the rotary screw compressor starts and stops uses less energy than the reciprocating piston would in the same environment.

 

How Do Rotary Screw Air Compressors Work?

Now that the more technical explanation is out of the way let’s take a look at the step-by-step process of how rotary screw compressors create compressed air:

  1. Gas is sucked into the compression chamber, which consists of two screw rotors.
  2. As they rotate, the air is isolated in the cavities and moved down the chamber through the rotors.
  3. The chamber’s overall size decreases as it moves away from the opening, reducing its volume and increasing its pressure.
  4. The pressure builds, and the air is condensed.
  5. Once the pressure has reached the threshold, the discharge valve will open and move the air into the next process step, whether dryers, storage, or filtration.

The compression process is streamlined and requires less internal air movement than the reciprocating compressors. The air is pulled in, and as it moves through the compression chamber, pressure is applied to compress it. No matter the variation, this process remains the same across all rotary screw compressors. These aptly named compressors are known for their consistency and efficiency, and they can come in oil-lubricated or oil-free.

If you would like to learn more about the rotary screw air compressors we carry and more just like them, read here.

 

Rotary Screw Air Compressor Variations

Rotary Screw compressors are typically divided into two leading technologies when it comes to their oil usage: Oil-free and Oil-injected. Both of these options cover all of the needs for rotary screw compressors. You might need an oil-free if there are high air quality standards, but the oil injection will work just fine for everything else. These two technologies are often referred to as dry and wet screws, respectively.

The main difference, besides oil content, is how the rotors spin:

  • Oil-Lubricated Screws the male rotor drives the female rotor
  • Oil-Free Screws, a timing gear, is responsible for ensuring a calculated clearance between the two rotors.

Different variants will result in slight differences between components. For example, oil-free rotary screw compressors come with an asymmetric screw profile to boost energy efficiency and reduce internal leakage. These compressors rely on the timing gear to prevent contact between the rotors.

Oil isn’t the only thing that can cause differences between rotary screw compressors. 

https://youtu.be/qW2RANdPUJ8

Main Benefits to Rotary Screw Air Compressors

Rather than delve into the details, let’s go over the benefits of going with a rotary screw compressor. There are five main points we are going to focus on.

  1. Energy Efficiency
    1. Due to low heat emission and the potential use of a VSD, these machines are more energy efficient than their reciprocating piston counterparts.
  2. Long Lifespan
    1. A combination of easy maintenance and low heat emissions makes this machine the ultimate workhorse. It can run at full power 24/7 and still experience minimal capacity loss.
  3. Continuous Air Flow
    1. Plan and simple, there is no need for a cooldown period, allowing these machines to keep working and avoid overheating issues. It would only take a break when there is no longer any capacity.
  4. Noise Volume
    1. Because these motors are not in direct contact with each other, they create a quieter environment around the compressor. Not only is the basic unit quieter but with the right add-ons, these machines can also be nearly silent.
  5. High Capacity
    1. These compressors can compress air 24/7, allowing them to produce higher volumes of air than other models.

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Filter By
  • All
  • Portable or Towable Air Compressors (8)

Horsepower

Horsepower
  • All
  • 25 hp
  • 60 hp
  • 100 hp
  • 125 hp
  • 250hp

CFM

CFM
  • All
  • 90-100 CFM
  • 160-170 CFM
  • 170-180 CFM
  • 180-190 CFM
  • 200-250 CFM
  • 300-400 CFM
  • 400-500 CFM
  • 500-1000 CFM

Brand

Brand
  • All
  • Chicago Pneumatic
  • Chicago Pnuematic - Power Technique

Price

Price
  • All
  • $100-250
  • $250-500
  • $10,000-20,000
  • $20,000+

Max PSI

Max PSI
  • All
  • 0-100
  • 100-110
  • 120-130
  • 140-150
  • 150-160
  • 170-180
  • 250+

Volts

Volts
  • All
  • 12 volt
  • 24 Volt
  • 460 volt