FPSC-Free Piston Stirling Cooler

Free Piston Stirling Cryocooler

FPSC (Free Piston Stirling Cryocooler) is a new type of completely CFC-free, high-efficiency, energy-saving, and environmental protection Cooler, which uses a small amount of helium as the coolant.

FPSC also is a kind of Magnetic Levitation Compressor (MagLev solution). But it is an even more efficient chiller compressor, with low energy cost, and consumption. It is small and portable, and it is widely used for precise temperature control for under -170℃ maximum.

RIGID, one of the leading Chinese companies in terms of innovation, designed a Free-Piston Stirling cooler – FPSC. The unit takes the entire product to a whole new level where it can save a lot of energy and significantly improve efficiency. The default version of Stirling coolers includes pistons, heat exchangers, and compression spaces. But we see technological advancements in all industries, such as Biotech, Pharmaceutical, Food, Energy, Chemical, Medical, Bio-Science, logistics, and Metrology.

RIGID Free-Piston Stirling Cryocooler is a game-changer for next-generation ultra-deep freezing! Read More...
Application Principles

To cool air in a compact and confined area!

1.
Direct Cooling with Conductive Connection
2.
Indirect Cooling with Heat Exchanger+Fan
3.
Direct Cooling with Thermosyphon
4.
Direct Cooling with Brine/Glycol/Nitrogen
1

Cooling performance-Least:
Aluminum plate is not uniformly and the thermal resistance between the aluminum plate and inside air is relatively large. Limited effective volume.

Influence of frost on cooling-Little:
The surface area of the aluminum plate exposed to the inside air doesn't become smaller when aluminum plate surface is covered with frost.

Others:
The vibration of the FPSC is conducted to the insulated container and aluminum plate directly and they can become a source of noise.
2

Cooling performance-Best:
The thermal resistance between cold side of FPSC and heat exchanger is relatively small. The thermal resistance inside air is relatively small too.

Influence of frost on cooling-Large:
When the space is filled with frost, air can't flow there. The surface area of finned plate exposed to the inside air becaomes smaller and cooling performance is reduced.

Others:
1. It is necessary to specify a fan motor suitable for operation at desired qorking temperature.

2. The heat from the fan motor adds an additional heat load and reduces the overall cooling performance.
3

Cooling performance-Better:
Aluminum plate is cooled more uniformly than "1". Two-phase heat transport allows for the lowest thermal resistance between the aluminum plate and FPSC.

Influence of frost on cooling-Little:
The surface area of the aluminum plate exposed to the inside air doesn't become smaller when aluminum plate surface is covered with frost.

Others:
1. It is necessary to define and prepare a suitable working fluid for desired operating temperature.

2. It is necessary to prepare charging equipment for working fluid.

4

Cooling performance-Better:
Copper tube is attached on aluminum plate with more freedom than "3". Plate is cooled more uniformly than "3" but results in a higher thermal resistance.

Influence of frost on cooling-Little:
The surface area of the aluminum plate exposed to the inside air doesn't become smaller when aluminum plate surface is covered with frost.

Others:
1. It is necessary to prepare suitable brine and pump for desired operating or storage temperature.

2. The heat from the pump motor adds an additional heat load and reduces the overall cooling performance.

3. It is necessary to take precautions against potential brine leakage.
Product Models

Stirling Cooler, which we refer to as the FPSC (Free Piston Stirling Cooler). RIGID has prepared a product lineup of Stirling Coolers that can cool air temp to 30℃ ~ -160℃ using helium gas as the refrigerant. The Stirling Cooler, which differs from a compressor, is a cooling system that continuously repeats gas compression and adiabatic expansion and uses naturally occurring helium gas as the refrigerant.

Helium is a very safe gas that is entirely harmless to our global environment. The typical use of our Stirling Cooler is in portable freezers, and refrigerators, but we are also developing a product lineup for use in laboratory equipment and in medical devices used for low-temperature distribution of goods.

FPSC-RS40
Capacity: 40W
Input Power: 12V
N.W: 2.2kg (4.8lbs)
Coolant: Helium=2.5g
Size: ODФ86mm x Length260mm
Working Lifetime: Continuously operation ≥10,000hrs
Working Condition: 0℃~+60℃(32℉~140℉)
Installation: Any direction is workable

Temperature Sensor of Controller: -1℃ to -99℃
Temp Range in Cold Fin (Cold part): -100℃~ 0℃
FPSC-RS80
Capacity: 80W
Input Power: 24V
N.W: 2.2kg (4.8lbs)
Coolant: Helium=3.0 g
Size: ODФ86mm x Length270mm
Working Lifetime: Continuously operation ≥10,000hrs
Working Condition: 0℃~+60℃ (32℉~140℉)
Installation: Any direction is workable

Temperature Sensor of Controller: -1℃ to -99℃
Temp Range in Cold Fin (Cold part): -140℃~ 0℃
FPSC-RS100
Capacity: 100W
N.W: 4.0kg (8.8lbs)
Coolant: Helium=3.0g
12V~30V DC Power Supply
External Size: 132mm×132mmx336mm (LxWxH)
Working Lifetime: Continuously operation ≥10,000hrs
Working Condition: 0℃~+60℃ (32℉~140℉)
Installation: Any direction is workable

Temperature Sensor of Controller: 0℃ to -140℃
Temp Range in Cold Fin (Cold part): -160℃ ~0℃
Stirling Cooler Cooling Performance
* Data from product Stirling - RS100

* The Stirling cycle is a thermodynamic closed cycle that was invented in 1816 (!) by a Scottish minister, Robert Stirling.
Cooling Performance Curve
Using safe and environmentally friendly Helium gas as the refrigerant. With the international advanced Free-piston Stirling technology, RIGID Stirling Coolers have a minimum temperature that can be controlled to -160℃, ±0.1℃. Furthermore, the Cryocooler has the smallest footprints, which is very suitable for deep, and fast low-temperature transportation and cold chain logistics.
Key Features
A Game-Changer For Next-Generation Deep Freezing - State Of The Art!

Evaporating Temp Below -99 ℃
Temperature down to -99℃ in few mins. It's suitable for strict temperature control. Depending on the heat mass, cooling capacity and speed can be fine-tuned.
Temperature Below -160 ℃
No OIL, No CFC.
It adopts helium as coolant, MagLev technology. It can reach maximum ultra deep temp -160℃ (only RS100), with 50% energy savings.
Most Compact & Lightweight
RIGID stirling cooler can be installed on various applications, especially for portable equipment because of its compactness and lightweight.
Completed & Integrated
RIGID Stirling cooler, drive board, temperature control and fan are integrated in one unit. You can install it into your system or equipment as it is.
Zero Maintenance & Less Engineering
Integrated configuration, no solder joints, which greatly improves reliability while reducing after-sales maintenance.
Long Continuous Operation
Stirling convertor sets achieves 14-Year continuous operation milestone, record-breaking power convertor.
Refrigerant CFC Free & Oil Free
Freon or other substitutes have been completely eliminated. No need oil operation, no wear, low failure rate.
All-Round Installation Available
Installation angle is not required, can be 360° rotation. Shock resistant, less vibration, ultra low working noise.
APPLICATIONS
RIGID ULT Stirling Cold Solutions Are Trusted in a Variety of Applications.

RIGID Stirling Coolers not only are the most environmentally sustainable ultra-low temperature (ULT) coolers on the market, but they are also the most cost-effective with the lowest life cycle costs. You can benefit from breakthrough Stirling cooler technology without compromising cooling performance across the entire research organization with your devices or equipment.
Military & Aerospace
Medical & Laboratory
Bio-tech Pharma
Semiconductor
Vaccine Transportation
Smart Cold Chain
Portable Freezer
X-Ray Machines
Components & Parts
Premium Technology with the lowest total cost of ownership!
Stirling Cooler Factory
Stirling technology has been used in military and aerospace fields for more than 20 years.

However, due to its high price, it has not been used in the mass market, and there are not many related application products.

After 3 years of efforts, RIGID engaged with a China researchinstitue and has successfully launched a series of affordable quality products for deep freezing.
-86℃ Stirling Freezer
Model: CPF01L86

Temperature -86℃ and portable freezer. Best choice for vaccine and drug transportation and storage.
Order Online
Our R&D Team
Ultra-low Transportable Cryogenic Freezers are specifically designed for Vaccine and drug transportation and storage.
Contact Us
Stirling Power Freezer
Freezers For all kinds of vaccines.
Covid-19 Vaccine Freezer Storage and Transportation.
Set the temperature you need from 8℃ to -80℃.
Contact Us
Vaccine Freezer
RIGID Can Provide Off-the-Shelf Products Designed And Produce By Us And Our Partners.
Contact Us
CONTACT US
For further information contact Rigid Stirling today!
Specifications PDF

Stirling Cryocooler RS40
12V, 40W
Download
Stirling Cryocooler RS80
24V, 80W
Download
Stirling Cryocooler RS100
24V, 100W
Download
Product Instroduction Stirling Cryocooler
Download
Stirling Cryocooler FAQ
1. What's Free Piston Stirling Cooler (FPSC)?
2. How does a Stirling Cooler work?
3. What's Stirling engine used for?
4. How cold can RIGID Stirling Cooler get?
5. Which gas is used in Stirling Cooler?
6. What's the main part of Stirling Cooler?
7. How do I control a Stirling Cooler?
8. How long can a Stirling Cooler run?
9. What do I need besides the Stirling cryocooler?
10. What maintenance Stirling Cooler is required?
11. What's Stirling Cooler input power?
12. Where can I buy Stirling Cooler?
13. Can I use the system in a vacuum?
14. Are there any special mounting requirements for RIGID Stirling Cooler?
15. Can I get a custom cold tip or evaporator?

Free Piston Stirling Cryocooler

Application Principles

To cool air in a compact and confined area!

1.

2.

3.

4.

Product Models

FPSC-RS40

Capacity: 40W

FPSC-RS80

Capacity: 80W

FPSC-RS100

Capacity: 100W

Stirling Cooler Cooling Performance

* Data from product Stirling - RS100

* The Stirling cycle is a thermodynamic closed cycle that was invented in 1816 (!) by a Scottish minister, Robert Stirling.

Cooling Performance Curve

Key Features

A Game-Changer For Next-Generation Deep Freezing - State Of The Art!

Evaporating Temp Below -99 ℃

Temperature Below -160 ℃

Most Compact & Lightweight

Completed & Integrated

Zero Maintenance & Less Engineering

Long Continuous Operation

Refrigerant CFC Free & Oil Free

All-Round Installation Available

APPLICATIONS

Military & Aerospace

Medical & Laboratory

Bio-tech Pharma

Semiconductor

Vaccine Transportation

Smart Cold Chain

Portable Freezer

X-Ray Machines

Components & PartsPremium Technology with the lowest total cost of ownership!

Stirling Cooler Factory

-86℃ Stirling Freezer

Model: CPF01L86 Temperature -86℃ and portable freezer. Best choice for vaccine and drug transportation and storage.

Our R&D Team

Ultra-low Transportable Cryogenic Freezers are specifically designed for Vaccine and drug transportation and storage.

Stirling Power Freezer

Freezers For all kinds of vaccines.Covid-19 Vaccine Freezer Storage and Transportation.Set the temperature you need from 8℃ to -80℃.

Vaccine Freezer

RIGID Can Provide Off-the-Shelf Products Designed And Produce By Us And Our Partners.

CONTACT US

For further information contact Rigid Stirling today!

​Specifications PDF

Stirling Cryocooler RS40

Stirling Cryocooler RS80

Stirling Cryocooler RS100

Product Instroduction Stirling Cryocooler

Stirling Cryocooler FAQ

Components & Parts
Premium Technology with the lowest total cost of ownership!

Model: CPF01L86

Temperature -86℃ and portable freezer. Best choice for vaccine and drug transportation and storage.

Freezers For all kinds of vaccines.
Covid-19 Vaccine Freezer Storage and Transportation.
Set the temperature you need from 8℃ to -80℃.

Specifications PDF