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Silent Series Scroll Vacuum Pumps

Patented Silent Series™ scroll vacuum pumps from Air Squared provide unmatched sound levels, industry-leading flow stability, and 100% oil-free operation in a compact design.

When noise, performance, size, and weight matter, Silent Series scroll vacuum pumps offer OEMs an attractive alternative to the traditional diaphragm and piston vacuum pumps. By introducing a proprietary coating to the fixed scroll and orbiting scroll, Silent Series scroll vacuum pumps set a new benchmark for quiet, smooth, and 100% oil-free operation.

Silent Series Advantages

100% Oil-Free
Maintain the purity of your system with oil-free scroll technology
Ultra-Quiet
Significantly lower dB than competing piston and diaphragm technology
Smooth Operation
Dynamically balanced, valve-less, and near pulsation-free
Compact, Lightweight Design
Ideal for portable applications where size and weight matter
Cost Competitive
Low-cost vacuum pump configurations for OEMs
Efficient Performance
Continuous vacuum process with no re-expansion or throttling losses

Silent Series Applications

  • Oxygen Concentrator
  • Medical Aspiration
  • Laparoscopic Smoke Evacuation
  • Dental or Surgical Suction
  • Body Fluid Analysis Equipment
  • Medical and Dental Sterilization
  • Air Sampling and Monitoring
  • Food Processing and Packaging
  • Laser Conditioning
  • Mass Spectrometry

Learn More

Sales Inquiries

Qualified OEMs should consult Air Squared for custom configurations and application specific requirements.

Get Started

  • Silent Series BadgeV05H012A-BLDC-C

    10 mbara

    5 lpmv

    0.05 kWe

    Full Production

  • Silent Series BadgeV07H015A-BLDC-C

    10 mbara

    15 lpmv

    0.08 kWe

    Full Production

  • Silent Series BadgeV12H020A-BLDC-C

    10 mbara

    25 lpmv

    0.177 kWe

    Full Production

Learn More About Silent Series Scroll Vacuum Pumps

Silent Series™ scroll vacuum pumps offer OEMs the quietest oil-free vacuum pump solution available. Learn more about the technology behind Silent Series designs from Air Squared and how it can support your application.

Silent Series Scroll Vacuum Pump Technology Overview

The namesake of traditional scroll-type designs are the two primary components, an orbiting scroll, and a fixed scroll. The orbiting scroll is coupled to a crankshaft that orbits the scroll eccentrically, following a fixed path with respect to the mating (fixed) scroll, creating a series of crescent-shaped pockets between the two scrolls. In the case of a scroll vacuum pump, the working fluid moves from the periphery (inlet) towards the center (discharge) through increasingly smaller pockets, generating vacuum.

The operating principles of oil-free scroll vacuum pumps are similar to those of lubricated scroll compressors commonly used throughout the refrigeration industry. The primary difference is oil-free scroll vacuum pumps use three idler shafts to maintain a close running clearance between the fixed and orbiting scroll instead of an Oldham ring.

Oil-free scroll vacuum pumps operate without lubrication, so tight machining tolerances are required to mitigate leakage. Using a proprietary scroll coating, Silent Series scroll vacuum pumps from Air Squared further reduce the running clearance between the fixed scroll and orbiting scroll, allowing small-scale oil-free scroll designs to operate at volumetric efficiencies previously unachievable.

Silent Series Scroll Vaccum Pump Advantages

  • Silent Series scroll vacuum pumps are 100% oil-free.
  • Silent Series scroll vacuum pumps are considerably more quiet and smooth-running than competing technology, such as reciprocating. The geometry of the scroll delivers continuous flow and eliminates the need for valves, resulting in significantly less port pulsation and associated noise. The unique orbital motion is dynamically balanced, minimizing vibration and reducing rubbing velocity far below piston rings or vanes. Combined with the absence of several moving parts, Silent Series scroll vaccum pumps offer a vast improvement over traditional technology, with quiet, smooth, pulsation-free operation.
  • Silent Series scroll vacuum pumps eliminate re-expansion losses – a problem found in reciprocating machines with every piston stroke – improving volumetric efficiency. Additionally, throttling losses are nonexistent with the valveless design.
  • Silent Series scroll vacuum pumps offer a durable and robust solution, with 70% fewer moving parts than reciprocating technology and only two primary moving parts.

Silent Series Scroll Vacuum Pump News


scroll vacuum pump nasa

Scroll Vacuum Pumps Aboard NASA Global Hawk

April 23, 2013

Air Squared’s oil-free scroll vacuum pumps successfully used on NASA Global Hawk unmanned mission.

Read More

P12H20N2.5 Scroll Compressor and Vacuum Pump

Tapping Scroll Technology for Pulse-free Air

January 1, 2002

New oil-free 0.5 hp compressor and vacuum pump taps clean, reliable scroll technology for pulse-free air in medical devices.

Read More

Silent Series Scroll Vacuum Pump Projects


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Silent Series Scroll Vacuum Pump FAQs

Monitoring speed is an important aspect of operating a scroll compressor or vacuum pump, as operation over the specified maximum speed can result in premature or catastrophic failure.

For scroll compressors and vacuum pumps that have a brushless DC motor, speed can be measured by connecting a digital tachometer between a hall sensor and ground. The tachometer must be programmed to the correct number of pulses per revolution, which can be determined by dividing the numbers of motor poles by 2. For example, an 8-pole motor will have 4 pulses per revolution. Alternatively, an oscilloscope can also be used to measure the frequency of the hall sensors. Divide the measured frequency by the number of pulses per revolution and multiply by 60 to determine the RPM. For scroll compressors and vacuum pumps that have an AC motor, speed can be measured by multiplying the frequency of the variable frequency drive (VFD) by 60 to determine the RPM.

Air Squared does not provide operation manuals for most products.

Given the specialized nature of our scroll products, Air Squared works directly with OEM customers to install, operate, test, evaluate, and service products. Customers who require an operation manual should contact their Sales Representative. If you do not have a Sales Representative, start with our Application Assistant or contact Sales directly. Application Assistant

Looking at the face of the unit, the motor shaft for scroll compressors and scroll vacuum pumps rotates clockwise.

Most Air Squared products do not have a CE conformity marking.

Our products are primarily designed for OEMs and not intended for end users. As most OEM systems already require CE marking, conformity specific to an Air Squared product is generally not required. OEM customers that require conformity specific to an Air Squared product should contact their Sales Representative.

Most scroll vacuum pumps have a discharge port centered on the face of the unit, with the inlet port positioned near the periphery.

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