• Stainless Steel Coil Liquid Chiller

    316 Stainless Steel Exchanger Water Chiller – The World’s Smallest Cooling System

    RIGID’s Stainless Steel Coil Liquid Chiller - the world’s smallest and smartest cooling system engineered for ultimate performance in tight spaces. Built with a 316 stainless steel coil heat exchanger, this powerhouse delivers exceptional corrosion resistance and durability, even in the harshest environments.


    Compact yet mighty, it features a DC mini compressor (12V/24V/48V) and a closed-loop stainless steel design, providing a reliable cooling capacity of 100W~550W in a unit weighing only 3 kg. Designed for seamless integration, it’s the perfect plug-and-play solution for OEMs and innovators who need precision temperature control without sacrificing space or efficiency.


    Ideal for medical devices, laboratory instruments, hydroponics, brewing, cold therapy, and industrial cooling, RIGID’s stainless steel micro chiller redefines what compact refrigeration can achieve. With customization options, energy-efficient operation, and advanced compressor control, it’s not just a cooling unit. It’s a performance upgrade for your product.

    RIGID HVAC provides compact cooling solutions, including mini compressors, portable ACs, and custom refrigeration.

    Compact. Reliable. Powerful.

    The Stainless Coil Liquid Chiller is a fully integrated circulatory cooling subsystem.

    • Weight: 3 kg (6.6 lbs)
    • Refrigerant: R134a / R290
    • Voltage: 12V / 24V / 48V DC
    • Cooling Capacity: 100W~550W
    • Dimension: 275 × 175 × 138 mm
    • Compressor: BLDC mini mompressor
    • Evaporator: Material 316 St. St. coil
    • Cooling type: Closed-loop liquid chiller
    • Drive board: Sinewave PCB with speed 2500~6000RPM.
  • Direct Expansion System, DV1910

    Product Model: DV1910E-S

    Capacity: 450W (1,535Btu)

    • Voltage: DC 12V
    • Capacity: 130W (LBP)
    • Compressor: QX1901VDL
    • Refrigerant: R134a or R290
    • Net Weight: 3.0kgs (6.6lbs)
    • Working Amps: 1~8A, (Max 10A)
    • Size: 200x230x148mm (7.87x9.05x5.8 inch)
    Direct Expansion System, DV1920

    Product Model: DV1920E-S

    Capacity: 450W (1,535Btu)

    • Voltage: DC 24V
    • Capacity: 130W (LBP)
    • Compressor: QX1902VDL
    • Refrigerant: R134a or R290
    • Net Weight: 3.0kgs (6.6lbs)
    • Working Amps: 1~7A, (Max 8.5A)
    • Size: 200x230x148mm (7.87x9.05x5.8 inch)
    Direct Expansion System, DV1930

    Product Model: DV1930E-S

    Capacity: 450W (1,535Btu)

    • Voltage: DC 48V
    • Capacity: 130W (LBP)
    • Compressor: QX1903VDL
    • Refrigerant: R134a or R290
    • Net Weight: 3.0kgs (6.6lbs)
    • Working Amps: 1~4A, (Max 7.5A)
    • Size: 200x230x148mm (7.87x9.05x5.8 inch)
    Direct Expansion System, DV1930

    Product Model: DV3220E-S

    Capacity: 550W (1,876Btu)

    • Voltage: DC 24V
    • Capacity: 200W (LBP)
    • Compressor: QX3202VDL
    • Refrigerant: R134a or R290
    • Net Weight: 5.0kgs (11.02lbs)
    • Working Amps: 1~4A, (Max 7.5A)
    • Size: 275x175x138 mm (10.83x6.9x5.4 inch)

  • External Drawing

    Stainless St. Coil Evaporator Chiller Drawing

  • Key Features

    Easy to install, compact, Micro-channel condenser, Stainless Steel Evaporator and more.

    Cooling-fluid Loop Chiller

     

    Compact water chiller: mini compressor, condenser, evaporator; Temperature cools from -25℃ to 20℃.

    Mini refrigeration Expertise

     

    Empowers core cooling, offering endusers unparalleled adaptability for their devices.

    OEM Refrigeration Solutions

     

    Ideal for laser, battery, laboratory, medical devices, electronics, ensuring reliability, and temp stability.

    Small Thermal Solutions

     

    Compact size, minimal weight and industrial-class reliability for various of cooling applications.

  • Stainless Steel Exchanger Water Chiller – The World’s Smallest Cooling System

    Compact. Reliable. Powerful.


    RIGID’s Stainless Steel Coil Liquid Chiller is a compact, closed-loop micro refrigeration system designed to deliver high performance in the smallest footprint. Engineered with 316 stainless steel coil tubing, this miniature chiller is built for demanding environments requiring durability, corrosion resistance, and precision temperature control.

    The Stainless Steel Coil Micro Chiller is used across industries that demand precise temperature control and long-lasting performance:

    Applications:

    • Medical & Laboratory Equipment
    • Cold Therapy & Physiotherapy Devices
    • Aquariums & Hydroponics Systems
    • Brewing & Fermentation Control
    • Laser & Electronics Cooling
    • Anodizing Baths & Industrial Process Cooling

    Key Features:

    • Wide Voltage Options: 12V, 24V, or 48V DC small compressors.
    • Cooling Capacity: 100W to 550W for a wide range of applications.
    • Compact & Lightweight: Only 3 kg (6.6 lbs), size 275×175×138 mm.
    • 316 Stainless Steel Coil Evaporator: Ideal for high-pressure or corrosive environments.
    • Closed-Loop System: Ensures efficient and reliable liquid circulation for stable thermal control.
    • Drive Board: User’s control system can easily connect to the drive board to adjust compressor speed and optimize performance.

  • Typical Applications

    RIGID HVAC provides compact cooling solutions, including mini compressors, portable ACs, and custom refrigeration.
    RIGID HVAC provides compact cooling solutions, including mini compressors, portable ACs, and custom refrigeration.
    RIGID HVAC provides compact cooling solutions, including mini compressors, portable ACs, and custom refrigeration.
    Electric Vehicle Battery Cooling
    RIGID HVAC provides compact cooling solutions, including mini compressors, portable ACs, and custom refrigeration.
    RIGID HVAC provides compact cooling solutions, including mini compressors, portable ACs, and custom refrigeration.
    RIGID HVAC provides compact cooling solutions, including mini compressors, portable ACs, and custom refrigeration.
    RIGID HVAC provides compact cooling solutions, including mini compressors, portable ACs, and custom refrigeration.
    RIGID HVAC provides compact cooling solutions, including mini compressors, portable ACs, and custom refrigeration.
    RIGID HVAC provides compact cooling solutions, including mini compressors, portable ACs, and custom refrigeration.

  • Online Store

    Stainless St. Coil Chiller DV3220E-S (24V)

    Stainless St. Coil Chiller DV3220E-S (24V)

    $490.00
    Product: Compact Refrigeration Unit
    Compressor: QX3202VDL
    Voltage: DC 24V
    Capacity: 200W (LBP)
    Refrigerant: R134A
    Size: 275x175x138 mm
    Weight: 3kgs (6.6lbs)

    Applications:
    Miniature water cycle refrigeration; Portable Cooling System.
    Quantity
    Coming soon
    Stainless St. Coil Chiller DV1910E-S (12V)

    Stainless St. Coil Chiller DV1910E-S (12V)

    $420.00
    Product: Compact Refrigeration Unit
    Compressor: QX1901VDL
    Voltage: DC 12V
    Capacity: 130W (LBP)
    Refrigerant: R134A
    Size: 25x15x17 cm (9.8X6.3X5.3 inch)
    Weight: 2.3kgs (5.1lbs)

    Applications:
    Miniature water cycle refrigeration; Portable Cooling System.
    Quantity
    Coming soon
    Stainless St. Coil Chiller DV1920E-S (24V)

    Stainless St. Coil Chiller DV1920E-S (24V)

    $430.00
    Product: Compact Refrigeration Unit
    Compressor: QX1902VDL
    Voltage: DC 24V
    Capacity: 130W (LBP)
    Refrigerant: R134A
    Size: 25x15x17 cm (9.8X6.3X5.3 inch)
    Weight: 2.3kgs (5.1lbs)

    Applications:
    Miniature water cycle refrigeration; Portable Cooling System.
    Quantity
    Coming soon
    Stainless St. Coil Chiller DV1930E-S (48V)

    Stainless St. Coil Chiller DV1930E-S (48V)

    $440.00
    Product: Compact Refrigeration Unit
    Compressor: QX1903VDL
    Voltage: DC 48V
    Capacity: 130W (LBP)
    Refrigerant: R134A
    Size: 25x15x17 cm (9.8X6.3X5.3 inch)
    Weight: 2.3kgs (5.1lbs)

    Applications:
    Miniature water cycle refrigeration; Portable Cooling System.
    Quantity
    Coming soon

  • Why Choose RIGID

    RIGID is a global leader in miniature DC compressor technology and compact cooling system innovation. We specialize in custom thermal solutions designed to integrate directly into your equipment - reducing size, weight, and cost while maintaining performance.

    Our Advantages:

    • OEM & ODM support for custom cooling designs
    • Proven reliability and energy efficiency
    • Minimal footprint, maximum performance
    • Strong R&D team and in-house manufacturing

  • 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!

    Micro DC Aircon

    Micro DC Aircon

    Ultra Compact & Light Weight

    Plate Liquid Chiller

    Plate Liquid Chiller

    Frame and Plate Evaporator

    Coaxial Type Liquid Chiller

    Coaxial Liquid Chiller

    St. St. Coaxial Evaporator

    Stainless Steel Liquid Chiller

    St. St. liquid Chiller

    Stainless St. Coil Evaporator

    Copper Coil Liquid Chiller

    Copper Liquid Chiller

    Copper Steel Coil Evaporator

    DC Condensing Unit

    DC Condensing Unit

    Ultra Small Direct Cooling

  • Contact Us

    We have our own R&D department and manufacturing facilities. Thereby, we control the complete process from the first idea to the delivery of finished cooling products to customers. If you don’t see what you are looking for in our product lineup, do not hesitate to talk to us about your system.

    Apart from standard cooling systems, RIGID also provides custom solutions. We have developed solutions for medical devices, life science, laboratory, electronics, laser, Lithium battery, and electric vehicle customers.

    We can design a miniature cooling system to meet the requirements of your application. To learn more, go to our Design & OEM page. Or, please contact us for a free evaluation of your application quinn@rigidhvac.com.

  • FAQ

    The Stailess Steel Coil Chiller in your application serves an important purpose – it helps keep your component cool. If you have questions about compact thermal management, we have the answers. Check out some of the most frequently asked questions (FAQ) about chiller systems below to learn more.

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