Sunpower’s engineering services include prototype design, development and fabrication of free-piston Stirling engines. The CryoTel® line of cryocoolers has outstanding performance, manufacturing accuracy, and quality.

Sunpower’s CryoTel cryocoolers are the result of over 30 years of technical leadership, innovation and evolution in free-piston Stirling technology.  Their cryocoolers are cost effective, low in vibration, and extremely efficient.  In fact, you will not find a more efficient cryocooler on the market.  Since they require no maintenance, our customers can expect many years of high-performance, trouble-free cooling.

Sunpower is the world leader in free-piston Stirling technology. Their reputation for producing reliable and efficient Stirling engines and cryocoolers is known world-wide.