FPSC Stirling Cooler
FPSC Stirling Cooler
This Free Piston Stirling Cooler from RIGID is built for precision, mobile, and deep-freezing applications:
- Military & Aerospace
- Medical & Laboratory
- Biotech Pharma
- Semiconductor
- Vaccine Transportation
- Smart Cold Chain
- Portable Freezer
- X-Ray Machines
Free Piston Stirling Cooler
RIGID offers Free Piston Stirling Cooler (FPSC) as a state-of-the-art temperature-controlled solution for coolers in the professional testing and ultra-low temperature industries such as Biotech, Food, Energy, Pharmaceutical, Medical, Chemical, logistics, Metrology, and Bio-Science.
FPSC is a new cooling concept that uses Helium as gas and continuously repeats gas compression and adiabatic expansion. It is a much more efficient compressor, with low energy cost and consumption.
The FPSC’s innovative MagLev technology enables it to be used in the field of deep freezing and can even precisely control the temperature at -160℃ maximum.
Look no further than the RIGID Free Piston Stirling Cryocooler! Read More
Free Piston Stirling Cryocooler
- Capacity:40W
- Voltage: 12V
- N.W: 6kg (13.22lbs)
- Coolant: Helium=2.5g
- Cold Fin Temp Range:-100℃~ 0℃
- Size: OD Ф86mm x Length 260 mm
- Controller Sensor Temp: -1℃ to -90℃
- Installation: Any direction is workable
- Working Temp: 0℃~+45℃(32℉~113℉)
- Capacity:80W
- Voltage: 24V
- N.W: 6kg (13.22lbs)
- Coolant: Helium=3g
- Cold Fin Temp Range:-120℃~ 0℃
- Size: OD Ф86mm x Length 270 mm
- Controller Sensor Temp:-1℃ to -99.9℃
- Installation: Any direction is workable
- Working Temp: 0℃~+45℃(32℉~113℉)
- Capacity:100W
- Voltage:24V~30V DC
- N.W: 7 kg (15.43lbs)
- Coolant: Helium=3g
- Cold Fin Temp Range: -150℃ ~ 0℃
- Installation: Any direction is workable
- Controller Sensor Temp: 0℃ to -140℃
- External Size: 132×132x336mm(LxWxH)
- Working Temp: 0℃~+45℃(32℉~113℉)

- Capaciy:100W
- Voltage:24~30V DC
- N.W: 7 kg (15.43lbs)
- Coolant: Helium=3g
- Cold Fin Temp Range: -160℃~ 0℃
- Installation: Any direction is workable
- Controller Sensor Temp: 0℃ to -140℃
- External Size:167×156 x291mm (LxWxH)
- Working Temp: 0℃~+45℃(32℉~113℉)

- Capacity:100W
- Voltage:12V~ 24V DC
- Built-in battery, ≥1H
- Inside Volume: 1 Liter
- N.W: 13.5 kg (29.76lbs)
- Cold End Temp: -86 ℃ to 4 ℃
- Working Temp:0℃~+45℃(32℉~113℉)
- Internal Size: 150x134x54.5mm (LxWxH)
- External Size: 270x270x450mm (LxWxH)

- Capacity:100W
- Voltage:12V~ 30V DC
- Built-in battery, ≥1H
- N.W: 17kg (37.48 lbs)
- Cold End Temp Range: -86 ℃ to 0 ℃
- Volume: 10/20/30/40 Liters (Optional)
- Working Temp: 0℃~+45℃(32℉~113℉)
- External Size: 635x410x470mm(LxWxH)
- External Size: 25×16.14×18.5inch(LxWxH)
FPSC Application Elements
Direct air cooling in confined space.
Free Piston Stirling Cryocooler

Oil-free and CFC-free, environment protection.

The temperature is able to reach -100°C in 4 minutes.

Temperature control is accurate to ±0.1 °C.

Portable and can be used in any direction.
FPSC-RS40
- Input power:12V DC
- Working current: 6A
- Noise:≤38dB
-
Temp Range in Cold Fin (Cold part): -100℃~ 0℃

FPSC-RS100
- Input power:24-30V DC
- Working current: 6A
- Noise:≤48dB
-
Temp Range in Cold Fin (Cold part): -150℃~ 0℃


FPSC-RS100 Plus
- Input power:24-30V DC
- Working current: 6A
- Noise:≤48dB
-
Temp Range in Cold Fin (Cold part): -160℃~ 0℃
A Game-Changer For Next-Generation Deep Freezing




Why Choose Rigid Free Piston Stirling Cooler

No Oil, No CFC.
Utilizing helium as a coolant and MagLev technology, the temperature was down to -100℃ in a few mins, with 50% energy savings.

Zero Maintenance, Less Engineering.
This unique design offers a number of advantages over traditional coolers. Most importantly, there are no solder joints, which greatly improves reliability and reduces after-sales maintenance.

Portable, Off-grid.
It is powered by a 12V or 24V DC power supply and is tailored for mobile and off-grid refrigeration applications.
FPSC Specifications PDF
- Specifications
- Drawing
Related Products
Frequently Asked Questions
RIGID Stirling Coolers not only are the most environmentally sustainable ultra-low temperature coolers on the market, but they are also the most cost-effective with the lowest life cycle costs.
The Free Piston Stirling Cooler (FPSC) is an elegant, completely sealed heat transfer system that has only two moving parts (a piston and a displacer), and which can use helium as the working fluid without concern about seal leakage.
The FPSC uses a heat exchanger to cool the cylinder down. The heat exchange involves repeating compression cycles.
The main body also contains a piston that moves up and down continuously. The material of choice for these pistons is usually stainless steel. The moving of the piston combined with the compression leads to a gas explosion.
Stirling engines are energy conversion devices that may be used as prime movers, refrigerating engines, or heat pumps. Currently, they are used commercially as cryogenic cooling systems and are under development as low-noise, low-emission automotive engines.
- RS40:-100°C
- RS80:-120°C
- RS100:-150°C
- RS100 plus:-160°C
- RS40:12V DC
- RS80:24V DC
- RS100:24~30V DC
- RS100 plus:24~30V DC
It uses Helium as the gas, CFC-free.
It has two control boards: the main drive board and the temperature control board. You just need to turn it on and set the temperature.
The FPSC Stirling Cooler design life is 5 years, and this is the recommended lifetime, although the current mean time to failure (MTTF) is over 200,000 hours, roughly 23 years.
This depends on your applications. Most clients will need to cool their heat exchangers like Aluminum plates or Cold adapters. Both of these are available as permanent or removable options. Some clients will design their own evaporator or air fin to transfer cold. RIGID engineers can help you to find the best solution.
Most customers will also require a vacuum flange to attach the Stirling Cryocooler to their Dewar or cryostat. For more information, feel free to contact Ann Wee | ann@rigidhvac.com
The cryocooler components are enclosed in a welded pressure vessel and there is no way to access them. There is no maintenance required on the cryocooler. We do recommend keeping the air fins free of debris on units that have cooling fins.
Only RS100 Plus.
No, they can be mounted in any orientation.
Besides, RIGID Stirling Cryocoolers offers several options for mounting. There are threaded hole patterns in the body of the cooler that is intended for mounting integration. The cooler can be mounted to the system via the cryostat flange either vertically or horizontally with the cryocooler cantilevered from the flange. Note: Care must be taken to not secure the cryocooler to the system structure in such a way that will induce stress in the body of the cryocooler.
Yes, RIGID offers clients cold tips or heat exchangers, like Alumimum cold plates, and cold fin. So that they can easily modify the cold tip (or acceptor) configuration. A custom cold tip will NOT increase the cryocooler lead time. We will deliver it along with the Stirling cooler.