• Rotary Compressor for Vapor Compression Cooling

Aspen Systems continues to remain open and fully operational as the country navigates the coronavirus global pandemic. We are following all OSHA, CDC, and local guidance for the safety of our employees, including social distancing, mask wearing, and daily disinfecting all tools, work surfaces, and common touch points. Our production team remains fully operational as we continue to supply essential medical and military products to our customers. However, we are not allowing visitors and many of the Aspen office staff are primarily working from home during these times. This means that incoming calls may not get the attention our customers have come to expect. If you need immediate attention, the best method is to either use the mobile number of your contact, if you have it, or alternatively, you can use our online contact form to reach us. Someone will get back to you very shortly.

Aspen Systems specializes in the design and manufacture of miniature refrigeration systems. We developed the world’s smallest rotary compressor and have designed numerous commercial and military systems based on this technology. We work with our customers to create custom thermal solutions that integrate directly into products to minimize weight, footprint, and costs. We offer standard products which are used across a variety of industries including commercial, industrial, military, and medical.

Our Technology

Compact vapor compression refrigeration systems utilizing our miniature rotary compressor enable smaller, lighter, and more efficient thermal solutions.

Custom Solutions

Custom Sys

Aspen Systems has extensive experience with integrating our miniature refrigeration technology into compact, efficient systems to meet our customers’ requirements.



The products Aspen offers have been rigorously tested to meet the demands of today’s most challenging fields including military electronics and laser cooling.

Vapor Compression Refrigeration Videos from Aspen

Aspen Systems Corporate Overview


Aspen Systems specializes in high performance, miniature Vapor Compression Refrigeration systems. See in the video above, a review of Aspen’s technology and capabilities (Run time: 2 min, 34 sec).

Advantages of Direct Refrigeration Cooling

Direct refrigeration cooling or direct expansion cooling offers many advantages including the highest efficiency and highest cooling power. Click the video to learn more (Run time: 1 min, 55 sec).

How Vapor Compression Refrigeration Works

Are you wondering how vapor compression refrigeration works? This educational video, uses the vapor compression refrigeration cycle diagram to explain the physics of phase change heat transfer (Run time: 3 min).

Aspen is an ISO 9001:2015 registered company