

RIGID HVAC CO., LTD

R290 DC Compressor
Micro Size, Silent Performance — Variable Speed DC Inverter Compressors Built for Efficiency.
R290 Inverter DC Compressor
As a pioneer in miniature compressor innovation, RIGID is dedicated to developing compact and portable cooling solutions that are both high-performance and environmentally responsible. We continuously invest in R&D to design cutting-edge products that align with global sustainability goals and meet the strict environmental standards set by the Eco-Design Directive (EU 2015/1095).
RIGID is committed to reducing carbon emissions by promoting the use of low-GWP refrigerants like R290, a natural and eco-friendly alternative to traditional refrigerants. Compared to R404A and R134a, R290 refrigerant offers superior thermal properties and higher energy efficiency, resulting in lower energy consumption and reduced refrigerant charge requirements.
Since 2018, RIGID’s R&D team has been focused on creating eco-friendly miniature compressors. The result is our high-efficiency R290 mini compressor line - designed for maximum performance, safety, and reliability, while minimizing environmental impact.
RIGID’s R290 mini compressors deliver outstanding cooling performance, precise temperature control, and exceptional flexibility, making them ideal for today’s growing demand for miniature thermal management systems in refrigeration, electronics, and mobile applications.
Advantages
Twin-Cylinder Pumps
Ultra-quiet, identified as "international leader" in technology
Eco Refrigerant R290
Meets European regulation F-gas 517/2014. No HFCs.
Inverter BLDC Motor
Variable Speeds ranging from 2,100 to 4,500rpm.
DC Controller Starting
Battery or dc power supply, low energy consumption.
R290 DC Compressor Performance Curve
Model: QX2802VDL-T

R290 Mini Compressor
- 24V DC
- 1.3kgs /2.87lbs
- Refrigerant: R290
- Size: 130x61mm (5.12 x 2.4 inches)
- Working Amps: 1~8.3A, (Max 12A)
- Motor Type: Brushless DC Motor
- Capacity: 580W to 826W (2,816Btu)
Key Features
- Eco-Friendly Refrigerant: R290
- Compact & Lightweight: Ideal for space-constrained applications
- Low Installation Costs: Easy integration with minimal setup
- Energy Efficient: Reduced power consumption for cost-effective operation
- Quiet Performance: Twin-cylinder enable operation noise less 48 dB.
- Fully Hermetic Design: Maintenance-free and leak-resistant
- Versatile Applications: Suitable for HBP, MBP, and LBP systems

R290 Mini Compressor Manufacturer
RIGID mini bldc compressors are equipped with their own patent driver board to ensure high efficiency, variable speed control, and load-following capabilities, which allows you to set the speed and load following to precisely control the temperature.
The compact size, lightweight, and durability of RIGID mini compressors make them ideal for mobile and portable applications.
RIGID 24V R290 mini compressor consume less energy and are quiet. As an electrical power source, they can use battery, vehicle, grid, or solar power. They can also be powered by AC using an AC-DC converter.
A significant advantage to using R290 is its energy-saving potential. The result is a reduction in operating costs and a reduction in emissions of CO2 into the atmosphere.
Variable Speed Drive Board
Easy Integration with Your System for Advanced Control
Integrating RIGID’s drive board (PCB) and optional display panel into your system is simple - perfect for users who need advanced functions or want to control the compressor using their own software.
The motor drive board enables variable-speed operation, allowing you to adjust the cooling capacity by changing the compressor speed. It accepts a 0–5V DC analog control signal to regulate speed precisely.
- Minimum speed: 2,000 RPM (when control voltage is 0.7V or lower)
- Maximum speed: 6,000 RPM (at 4.5V or higher)
- Between 0.7V and 4.5V, the speed control is linear and can be calculated using the formula: S = 1132 × V + 1408
- Where S = compressor speed in RPM, and V = control voltage in VDC.
This flexible setup gives you smooth and reliable control, making it easy to customize cooling performance based on your specific application requirements.

Mini Compressor Application


RIGID miniature compressors have the size, weight, and durability that make them well-suited to mobile or portable applications, including:
- Small Cooling
- Medical Device
- Beverage Cooling
- Small Refrigerators
- EV/RV Battery Cooling
- Portable Heat Pumps
- Electronic Components
- Mini-Chilled Water Systems
- Portable DC Air Conditioner
- Electronics Cooling Systems
- Aesthetic & Medicine Device
- Telecommunications Cooling
- Portable Mini Cooling Systems
- Miniature Refrigeration/Freezer Systems
- Thermally-Controlled Shipping Containers
- Portable and Small Cooling Applications
- Automotive (Electric Vehicle, Vessel, Helicopter)
R290 Mini DC Inverter Compressor
Tailored for Small and Light Commercial LBP/MBP/HBP Applications
RIGID’s R290 DC compressor is a next-generation miniature twin-cylinder rotary compressor designed for compact, portable, and energy-efficient cooling applications. Engineered with DC inverter technology and a high-performance BLDC motor, this mini compressor offers unmatched efficiency, ultra-low noise, and long service life—making it the leading choice for eco-conscious and space-constrained cooling systems.
Powered by R290 refrigerant, a natural and environmentally friendly gas with low GWP, this DC compressor reduces energy consumption, lowers carbon emissions, and complies with global sustainability standards.
✅ Key Features:
- Low noise operation – Perfect for noise-sensitive environments
- Ultra-compact & lightweight – Ideal for mobile and off-grid applications
- Variable speed control – Optimizes energy usage with precision load matching
- High reliability & long lifespan – Built for 24/7 performance in demanding conditions
- Twin-cylinder architecture – Provides higher stability, lower vibration, and superior efficiency
🌍 Applications:
- Compact air conditioners & HVAC systems
- Heat pumps and mobile refrigeration
- Commercial & residential cooling appliances
- Off-grid and solar-powered refrigeration units
Unlike fixed-speed compressors, RIGID’s inverter rotary R290 mini compressor adjusts its output based on cooling demand, delivering only the power needed, and saving significant electricity. Whether for commercial cooling, compact refrigeration, or precision electronics cooling, RIGID continues to lead the industry with advanced, eco-friendly compressor solutions.
Online Store
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FAQ
RIGID R290 DC Compressors – Powering the Future of Miniature Refrigeration.
1. What is the R290 DC Compressor?
RIGID’s R290 DC compressor is a compact, high-efficiency, variable-speed rotary compressor that uses R290 (propane) refrigerant and is designed for eco-friendly, mobile, and compact cooling systems.
2. What makes R290 refrigerant special?
R290 is a natural refrigerant with very low Global Warming Potential (GWP) and excellent thermal performance. It’s highly efficient and environmentally friendly.
3. What are the key features of RIGID’s R290 compressors?
Compact size, twin-cylinder design, BLDC motor, inverter speed control, low vibration, ultra-quiet operation, and superior energy efficiency.
4. What is the voltage range for R290 DC compressors?
RIGID offers 12V, 24V, and 48V DC versions, suitable for off-grid, solar, or battery-powered systems.
5. Is the compressor variable-speed?
Yes, it features DC inverter technology, allowing the compressor to run at variable speeds to match the cooling load efficiently.
6. How energy-efficient is the R290 DC compressor?
RIGID’s inverter compressors use only as much power as needed, significantly reducing energy consumption by up to 40% compared to fixed-speed compressors.
7. How much cooling capacity does it offer?
Depending on the model, cooling capacity ranges from 100W to 1,500W (up to 5,118 BTU/h).
8. How is the speed of the compressor controlled?
Via a 0–5V analog signal, which adjusts the motor speed from 2,000 to 6,500 RPM.
9. Is the compressor noisy during operation?
No, RIGID’s R290 compressors are designed for ultra-quiet operation, ideal for indoor and noise-sensitive applications.
10. Does it vibrate a lot?
Thanks to its twin-cylinder rotary structure, the compressor offers low vibration and stable operation.
11. Is R290 safe to use?
Yes, when used correctly in properly designed systems, R290 is safe and widely used in both residential and commercial refrigeration.
12. Does R290 refrigerant reduce emissions?
Absolutely. R290 has a GWP of only 3, dramatically reducing CO₂ emissions compared to R134a or R404A.
13. Is the R290 compressor compliant with eco-design standards?
Yes, RIGID’s compressors are developed to meet EU Eco-Design Directive 2015/1095 and other international efficiency standards.
14. Is the refrigerant charge amount lower with R290?
Yes, due to R290’s superior thermodynamic properties, it requires less refrigerant for the same cooling capacity.
15. Can I use the compressor in off-grid solar systems?
Definitely. RIGID’s R290 DC compressors are ideal for solar-powered and battery-operated cooling systems.
16. What applications are R290 DC compressors used for?
Used in portable air conditioners, compact chillers, marine refrigeration, mobile HVAC, telecom cooling, and off-grid appliances.
17. Can I integrate it into my custom system?
Yes, RIGID provides compact compressors with customizable drive boards (PCBs) for easy integration and software control.
18. Is it suitable for mobile and transport cooling?
Absolutely. The compact size and energy efficiency make it perfect for transport refrigeration and engine-off vehicle cooling.
19. Does RIGID offer OEM/ODM services for R290 compressors?
Yes, RIGID provides custom solutions for industrial, commercial, and research applications.
20. Where can I purchase RIGID’s R290 DC compressors?
You can buy directly from Website or contact Quinn for nice price for bulky orders. quinn@rigidhvac.com
Standard Products and Custom Solutions
Established in 2010, RIGID is the manufacturer who's behind many popular brands in the US. RIGID's vision is to set the benchmark standard for the micro cooling industry. We are a China manufacturer and supplier of compact cooling systems, working in close cooperation with the leading United States and European manufacturers of Air-conditioning & Refrigeration.
In addition to offering standard products including Micro DC Aircon (ruggedized air conditioner modules for compact and confined space cooling), Liquid Chiller Modules (battery-driven compact refrigeration systems that our customers integrate into their applications), and DC Condensing Units (world's small direct cooling units used by customers in small freezer, medical, laser, and electronics cooling). RIGID also custom design or modify refrigeration systems for most customers' specific applications.
Let our engineering team develop the perfect cooling solution for you!

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