Plug & play pressure
Up to 20 bar in a single stage
Patented technology
22:1 pressure ratio
Award Winning
Made in Scotland Award 2018
Contact us

Conical Rotary Compressor

Portable pressure of up to 20 bar in a single stage

Vert Rotors compressors, similar to traditional twin screw devices, use a pair of rotors to generate pressure. Vert’s novel step is to place one rotor inside the other, instead of side by side. As the air travels along the rotors, the volume of the chamber reduces, increasing the pressure. The air is then ejected at the discharge end of the device at a higher pressure than is able to reached by other compressor technologies.

  • Compact form factor capable of up to 22:1 pressure ratio in a single stage
  • Lightweight architecture and manufacture results in a portable system
  • Double the efficiency of an equivalent scroll compressor
  • 30dB quieter than an unsilenced piston compressor
  • Oil cooled system means 100% duty cycle
  • Double the single stage pressure capability of a twin screw
Watch video: the Nautilus A100 powering a CMM machine

EU patents 3108142, 3005308; US patents 9776739, 9959684

Unique Advantages


3.7x quieter

than industrial piston compressors of similar capacity

100% duty = 2x more air

than "quiet" piston at max 50% duty cycle
  • Traditional compressors make a deafening noise. The Nautilus is 3.7 times quieter, and produces 83% lower vibration: beneficial for sensitive applications (CMM machines, 3D printers)
  • So-called "quiet piston" compressors typically work for only 50% of the time, due to overheating. The Nautilus has an integrated air-oil active cooler, and it runs non-stop 100% of the time producing 2 times more air


Vert Rotors - Nautilus A100 Air Compressor
Quiet air compressor for CMM machines and 3D printers
  • 7 - 10 bar(g) / 100-145 psi(g)
  • 96 lpm at 7 bar(g)
  • 1-phase mains power
Vert Rotors - Storm A100 Air Compressor

Bespoke integrations

Ultra-light, quiet air compressor to integrate to your solution

Our core Conical Rotary Compressor  (CRC) technology has a number of benefits over other compressor technologies.

Case studies

CMM Machine

CMM machine

The need for clean, vibration-free compressed air

High-precision coordinate-measuring machines (CMM) need clean compressed air, Class 4 purity or better, preferably Class 1. Contamination of air with particles may lead to failure of air bearings in the probe head, lowered precision, expensive repair, and delay the manufacturing process.

Typically, the factory does not guarantee high air purity. Building airlines with filters and dryers may be very expensive. In this case choosing a point-of-use air compressor may be a simpler and cheaper alternative. The piston compressor is not advisable due to the high level of vibrations, which is bad for CMM precision. A rotary compressor, with a Class 1 filter is a preferred solution because it helps to prevent expensive repair and down-time.

Sterile environments
Enabling 3D printing in quiet, urban facilities

High-value metal 3D printers are often used in engineering design houses, hospitals, laboratories, etc. Such facilities may not have a central supply of compressed air, or 3-phase power. For 3D printers, which require compressed air, a point-of-use air compressor is a preferred option. Such compressor should be very quiet, run from 1-phase mains power, and provide Class 1 air quality, to protect the 3D printer from contamination.

While piston compressors may look like a cheaper option, they produce significant vibration and high level of noise, which means that under the H&S law they may only be used for a short time. “Quiet” compressors typically operate at 50% duty cycle, such as 15 min on / 15 min off, and therefore may interrupt the work of the 3D printer.

An innovative compressor design to improve infrared imaging performance
Significantly improve quality and resolution of infrared imaging in satellites

As an example application of their highly efficient, unique and versatile conical rotary compressor design, Edinburgh-based Vert Rotors received Centre for Defence Enterprise (CDE) funding to develop a prototype system that could significantly improve the quality and resolution of infrared imaging in small surveillance satellites.

In small imaging systems vibration isn’t desirable, but it is an inherent feature of current, state-of-the-art cryocoolers based on piston compressors. Vert Rotor’s miniature low-vibration cooling system design is based on their conical rotary compressor technology developed to cool infrared image sensors on small satellites with very little vibration, thus eliminating this problem.

Vert Rotors has already started another project to upgrade their rotary cryocooling system for space simulation testing. In the future this could offer a step-change innovation for a future British space-surveillance capability.


Excitement at VERT as first 30 compressor units are ready for UK companies

The production team at VERT have been busy putting the final touches to the first batch of 30 A100 compressors ready for delivery to UK customers. The units will be delivered to companies across Edinburgh and the central belt of...

VERT ROTORS® selected to receive prestigious Government grant

VERT Rotors UK Ltd is delighted to confirm it has been selected to receive a funding award of £410,000 (£910,000 total project cost) from the UK Department of Business, Energy and Industrial Strategy (BEIS) to test the industrial energy saving...

A recap of Smart Factory Expo

Smart Factory Expo has now been and gone. Liverpool was home to the annual show and it was a great experience for Vert to be involved in! Smart Factory Expo is Europe’s biggest Digital Manufacturing Show and the biggest element of...


Made in Scotland Awards
Business Insider, AFRC
Made in Scotland Awards
Made in Scotland Award
Venture-backed MTA Trophy 2017 Scotland
British Venture Capital Association

Careers at Vert

A Career at Vert is a rare opportunity to join a team of technology pioneers, develop game-changing innovation and make a global impact with your work.

Work at Vert is very challenging and rewarding. That’s why we only hire only the brightest and most passionate engineers in the country. It’s hard to get a job at Vert, but it will be well worth the challenge.