

RIGID HVAC CO., LTD
Liquid Cooling System
Copper Coil E-Type Liquid Chiller - The World's Smallest Cooling System

E-Copper Coil Liquid Chiller
- 3 kgs / 6.6lbs
- Size: 250x150x138 mm
- Compact & small liquid chiller
- 12V/24V/48V compressor to enable peak performance.
- Closed-loop liquid chilled system provides a reliable cooling solution.
- Efficient DC compressor provides a cost-effective cooling solution where size / space / efficiency are important factors.
Compact Micro Refrigeration Cooling System for OEM Equipment
The Copper Coil Liquid Chiller is a compact and high-efficiency micro refrigeration cooling system designed for OEM equipment manufacturers who require a reliable liquid cooling module. The system integrates a miniature BLDC refrigeration compressor using environmentally friendly R134a or R290 refrigerant, together with a compact condenser, copper coil evaporator, filter drier, driver board, and other essential refrigeration components.
All components are carefully engineered and integrated into a single compact unit, creating a highly efficient and reliable cooling subsystem. This sophisticated design, developed by RIGID’s experienced engineering team, significantly simplifies system integration while delivering stable and high-performance cooling.
The integrate28d architecture reduces installation complexity and allows equipment manufacturers to quickly implement advanced micro cooling technology in their products.

Mini Liquid Chiller with BLDC Compressor | Compact OEM Cooling System
Designed for OEM Integration
The Copper Coil Liquid Chiller is ideal for customers who prefer to manage their own system control and integration. It functions as a stand-alone cooling subsystem module that can be easily incorporated into various machines, instruments, or industrial equipment.
Customers can connect their main control board directly to the BLDC compressor driver board, enabling precise control of compressor speed. This flexible control capability allows users to optimize cooling performance according to their specific operational requirements.
Key Features
- High-Efficiency Mini BLDC Compressor for reliable and energy-efficient cooling.
- Environmentally Friendly Refrigerants – Compatible with R134a or R290.
- Compact Integrated Design for easy installation and system integration.
- Copper Coil Evaporator for efficient heat transfer and stable cooling performance.
- Intelligent Driver Board supporting variable compressor speed control.
- Lightweight and Space-Saving Structure ideal for compact equipment designs.
- OEM-Ready Cooling Subsystem suitable for customized integration.
Typical Applications
The Copper Coil Liquid Chiller is widely used in applications requiring compact liquid cooling solutions, including:
- Medical and laboratory equipment
- Laser and optical cooling systems
- Electronics thermal management
- Portable refrigeration devices
- Analytical instruments
- Industrial automation equipment
- Specialty cooling systems
RIGID Micro Cooling Expertise
At RIGID, we specialize in the development and manufacturing of miniature BLDC compressors and compact refrigeration systems. Our engineering team continuously innovates to deliver advanced micro cooling solutions that meet the demanding requirements of modern equipment manufacturers.
We support both OEM and ODM projects, providing flexible customization options to help our partners integrate efficient and reliable cooling systems into their products.
Standard Products and Custom Solutions
Founded in 2010, RIGID is a leading manufacturer of compact refrigeration and micro cooling systems. Our technologies power many well-known brands in the United States and other global markets. RIGID’s vision is to set the benchmark standard for the micro cooling industry, delivering innovative, reliable, and energy-efficient cooling solutions for modern equipment.
As a China-based manufacturer and global supplier, RIGID works in close cooperation with leading U.S. and European air-conditioning and refrigeration companies. Through strong engineering expertise and advanced manufacturing capabilities, we provide high-performance cooling systems designed for demanding industrial, medical, and commercial applications.
Standard Cooling Products:
RIGID offers a wide range of compact cooling modules and refrigeration systems, including:
- Micro DC Aircon
Ruggedized DC-powered air conditioner modules designed for cooling compact or confined spaces. These systems are ideal for applications such as electrical enclosures, vehicle cabins, electronics cabinets, and mobile equipment. - Liquid Chiller Modules
Compact battery-driven refrigeration systems designed for liquid cooling. These modules can be integrated directly into customer equipment for applications such as laser cooling, medical devices, laboratory instruments, and precision electronics. - DC Condensing Units
Ultra-compact direct cooling refrigeration units are used in small freezers, portable refrigeration systems, and specialized cooling equipment. These units are widely used in medical cooling, laser systems, electronics cooling, and scientific instruments.
Custom Cooling System Development:
Beyond our standard product range, RIGID specializes in custom refrigeration system design. Our engineering team works closely with customers to develop or modify cooling systems tailored to specific application requirements.
Whether you need to optimize cooling performance, reduce system size, improve energy efficiency, or integrate refrigeration into specialized equipment, RIGID can provide a custom-engineered cooling solution.
With years of experience in miniature compressors, micro refrigeration systems, and compact cooling technologies, RIGID supports customers worldwide with both OEM and ODM projects.
- Micro DC Aircon
Frequently Asked Questions (FAQ)
1. What is a Copper Coil Liquid Chiller?
2. How does a micro liquid chiller work?
3. What refrigerants are supported?
4. What are the main applications of the Copper Coil Liquid Chiller?
5. What makes this chiller different from traditional chillers?
6. Is the Copper Coil Liquid Chiller suitable for OEM integration?
7. Can I control the compressor speed?
8. What cooling capacity range is available?
9. Is the system energy efficient?
10. Can the system be customized?
11. What industries use compact liquid chillers?
12. What are the advantages of a copper coil evaporator?
13. Is the chiller suitable for portable or mobile applications?
14. What voltage options are available?
15. How easy is installation?
16. Does the system require external control?
17. What maintenance is required?
18. Can it be used for precision temperature control?
19. Is RIGID able to support ODM projects?
20. How can I choose the right liquid chiller for my application?

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