Orbital Series Scroll Compressors
Orbital Series™ scroll compressors from Air Squared provide quiet, smooth, efficient and 100% oil-free operation in a durable and reliable design.
When noise, performance, and reliability matter, Orbital Series scroll compressors offer OEMs an attractive alternative to the traditional piston and vane compressors. By nature of a simple design with fewer moving parts, oil-free scroll technology has established itself as a highly efficient, reliable, and cost-effective alternative.
Orbital Series Advantages
- 100% Oil-Free
- Maintain the purity of your system with oil-free scroll technology
- Quiet, Smooth Operation
- Dynamically balanced, valve-less, and nearly pulsation-free
- Efficient Performance
- Continuous compression, with no re-expansion or throttling losses
- Reliable, Durable Solution
- Long product life and simple field maintenance
- Cost Competitive
- Low-cost compressor configurations for OEMs
Orbital Series Applications
- PEM Fuel Cells
- Aviation Oxygen Concentrator
- Pond Aeration
- Water Purification System
- Potable Water System
- Noninvasive Medical Cooling
- Percussive Lung Therapy
- Nitrogen Generator
- Aerospace Pneumatics
- Industrial Pneumatics
- Air Purification
Learn More
Sales Inquires
Qualified OEMs should consult Air Squared for custom configurations and application specific requirements.
Get Started-
P14H022A-BLDC-C6.9 barg
100 lpmv
0.96 kWe
Limited
Production -
P16H030A-BLDC2.5 barg
150 lpmv
0.72 kWe
Full
Production -
P19H038A-BLDC5 barg
475 lpmv
3.4 kWe
Limited
Production -
P24H056A-BLDC1 barg
800 lpmv
1.2 kWe
Limited
Production -
P22H060A-BLDC1.6 barg
485 lpmv
1.3 kWe
Full
Production -
P27H069A-BLDC1.2 barg
950 lpmv
2.4 kWe
Full
Production -
P34H080A-BLDC1.8 barg
1850 lpmv
5 kWe
Limited
Production
Learn More About Orbital Series Scroll Compressors
Orbital Series™ scroll compressors offer OEMs a quiet, efficient, durable, and 100% oil-free alternative to traditional piston and vane compressors. Learn more about the technology behind Orbital Series designs from Air Squared and how it can support your application.
Orbtial Series Scroll Compressor 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 compressor, the working fluid moves from the periphery (inlet) towards the center (discharge) through increasingly smaller pockets, generating compression.
The operating principles of oil-free scroll compressors are similar to those of lubricated scroll compressors commonly used throughout the refrigeration industry. The primary difference is oil-free scroll compressors use three idler shafts to maintain a close running clearance between the fixed and orbiting scroll instead of an Oldham ring.
Orbital Series Scroll Compressor Advantages
- Orbital Series scroll compressors are 100% oil-free.
- Orbital Series scroll compressors are considerably more quiet and smooth-running than competing technology, such as reciprocating and vane. 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, Orbital Series scroll compressors offer a vast improvement over traditional technology, with quiet, smooth, pulsation-free operation.
- Orbital Series scroll compressors 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.
- Orbital Series scroll compressors offer a durable and robust solution, with 70% fewer moving parts than reciprocating technology and only two primary moving parts.
Orbital Series Scroll Compressor News
NASA Outreach Program Assists Air Squared
March 26, 2012
New compressor design heads to production thanks to assistance from NASA outreach program.
Plug Power Places Large Production Order
October 27, 2011
Plug Power places large production order for Air Squared compressors used in GenDrive fuel cell units.
100 lpm, 100 psi Scroll Compressor
September 04, 2011
Developed for use in testing pilot suits, the compressor will be ideal for dental applications.
Orbital Series Scroll Compressor Projects
Semi-Hermetic Scroll Compressor for CO2 Collection
March 08, 2018
The semi-hermetic P19H038A-BLDC-SH is adopted from a non-sealed scroll compressor of similar design that is used onboard commercial airliners. The unit was modified to compress CO2 with minimal leakage and contamination of the working fluid and is part of an SBIR Phase I project awarded to Air Squared to develop scroll solutions that support ISRU […]
High-Capacity Scroll Compressor for Fuel Cell Applications
November 09, 2016
Growing in unison with the international alternative energy industry, Air Squared has become the transportation fuel cell standard through the development of their largest production scroll compressor, the P34H080A-BLDC. Capable of delivering up to 1,850 lpmv, the P34H080A-BLDC provides reliable oil-free air for transportation fuel cell stacks. Design Specifications Discharge Pressure: 1.8 barg Max Volume […]
Lightweight, Compact, Oil-free Scroll Compressor
February 07, 2013
Developed for mobile applications, the oil-free P24H056A-BLDC features a compact and lightweight design, capable of delivering up to 600 lpmv of air at 0.7 barg. The unit is ideal for mobile fuel cell and medical applications. The efficient compressor employs a traditional orbiting scroll design, but can operate at speeds over 4,000 RPM. While most […]
P19H38N5.25 5 HP Scroll Compressor
March 01, 2010
As the largest Air Squared scroll compressor to date, the 5 hp P19H38N5.25 is capable of 500 lpm at 125 psig. The AC powered unit features innovative integrated cooling.
Durable and Compact Scroll Compressor for Commercial Aerospace
March 08, 2009
Unique among scroll technology solutions for Air Squared, the P19H038A-BLDC is purpose-built to deliver maximum performance per kilogram in a minimal footprint, with the unique needs of aerospace applications considered throughout the entire design process. Intended for integration in a potable water supply system, the P19H038A-BLDC represents the state-of-the-art compressor solution for commercial aerospace applications. […]
Orbital Series Scroll Compressor Related Articles
- Scroll Compressor and Vacuum Pump Efficiency
- Air Compressor Testing Method
- Air Compressor Test Bench Schematic
Orbital Series Scroll Compressor 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.
Looking at the face of the unit, the motor shaft for scroll compressors and scroll vacuum pumps rotates clockwise.
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.
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 compressors have a discharge port centered on the face of the unit, with the inlet port positioned near the periphery.
