Compact Liquid Chiller

Battery-Driven DC Chiller Liquid Cooling – Air Cooled & Water Cooled

 

 

 

 

 

  • Laser / Medical / Electronics
  • EV/ Drone / Lithium Battery
  • Battery / Medical / Laboratory

Compact Liquid Chiller Module

As a pioneer in micro refrigeration, RIGID has also developed a range of liquid cooling chillers/modules based on its own mini compressors, to cater to customers who are aiming to use micro refrigeration modules and products in their equipment.

RIGID Compact Liquid Chillers primarily provide core cooling for applications that require portable and compact cooling functions. The compact chiller has 4 main components (Compressor, Condenser, Capillary or Expansion Valve, and Evaporator).

Meanwhile, RIGID Liquid Chiller contains a drive board for the convenience of clients who eventually wish to package and connect refrigeration circuits to their systems.

Currently, RIGID Compact Liquid Chiller (LCM) has been applied in a wide variety of industries including Medical&Aesthetic, Drones, Life Sciences, Vertical Farming, Laboratory Instruments, Electronic Cooling, Laser Cooling, and personal cooling.

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Compact Liquid Chiller Provides Small Water Cool

Plate Liquid Chiller
  • Cooling Approach: Liquid Cooling
  • Evaporator Type: Plate and Frame
  • Temperature Range: ±20℃ (-4~68℉)
  • Core Parts: Compressor, Controller, Condenser, Evaporator, Filter drier

*Feature: The optimum water chiller solutions with a large cooling capacity and the smallest footprint.

Coaxial Liquid Chiller
  • Cooling Approach: Liquid Cooling
  • Evaporator: Stainless Steel Coaxial
  • Temperature Range: ±20℃ (-4~68℉)
  • Core Parts: Compressor, Controller, Condenser, Evaporator, Filter drier

*Feature:  A mobile compact water chiller provides the best cooling performance and the smallest footprint.

Direct expansion unit
  • Cooling Approach: Direct Expansion
  • Temperature Range: -30℃  ~ 5℃
  • Evaporator Type: Excluded (optional)
  • Core Parts: Compressor, Controller, Condenser, Filter drier

*Feature: Direct expansion system offers direct refrigeration with the most simple configurations and smallest size.

St. St. liquid chiller-2
  • Cooling Approach: Liquid Cooling
  • Temperature Range: ±20℃ (-4~68℉)
  • Evaporator Type: Stainless st. coil tube
  • Core Parts: Compressor, Controller, Condenser, Evaporator, Filter drier

*Feature: Small liquid chiller allows the end user to chill fluids directly in his own reservoir or water tank.

Copper coil liquid chiller
  • Cooling Approach: Liquid Cooling
  • Evaporator Type: Copper coil tube
  • Temperature Range: ±20℃ (-4~68℉)
  • Core Parts: Compressor, Controller, Condenser, Evaporator, Filter drier

*Feature:  The best small and mobile water chiller offers direct liquid cooling in a reservoir.

mini water chiller
  • Cooling Approach: Liquid Cooling
  • Evaporator Type: Plate and Frame
  • Temperature Range: ±20℃ (-4~68℉)
  • Core Parts: Compressor, Controller, Condenser, Evaporator, Filter drier

*Feature: Ultra-small liquid chiller allows the end user to adapt to the coolant fittings for ultimate flexibility.

6 Products Found.

Compact Liquid Chiller Features

compact size
Compact Size

The world’s smallest footprint is designed for compact & confined space.

Reliability
High Reliability

Sophisticated manufacturer ensures a high degree of reliability.

High Capacity
High Efficiency

Inverter technology&various speed PCB ensures high efficiency.

Low Weight
Low Weight

The weight of the dc miniature compressor is only 720g / 1.59lbs.

Plate Liquid Chiller

Plate Liquid Chiller uses a plate&frame heat exchanger to transfer heat between two fluids.

 

  • R134a/R290
  • 4kgs/8.8lbs
  • Capacity: 100~550W
  • Voltage: 12V/24V/48V
  • Size: 330x200x138mm
  • The mini dc compressor provides peak performance.

 

Plate Liquid Chiller_RIGID
coaxial liquid chiller

Coaxial Liquid Chiller

Coaxial Liquid Chiller uses stainless st. coaxial heat exchanger to transfer heat between two fluids.

 

  • R134a/R290
  • 4kgs/8.8lbs
  • Capacity: 100~550W
  • Voltage: 12V/24V/48V
  • Size: 330x200x138mm
  • The mini dc compressor provides peak performance.

 

Direct Expansion System

World’s Smallest and Lightest-weight Direct Refrigeration DC Condensing Unit

 

  • R134a/R290
  • 2.5 kgs/5.5lbs
  • Capacity: 100~550W
  • Voltage: 12V/24V/48V
  • Size: 190*160*138mm
  • The mini dc compressor provides peak performance.
DC condensing unit
St. St. liquid chiller-RIGID

St. St. Coil Chiller

Stainless Coil Liquid Chiller uses a stainless coil tube heat exchanger to transfer heat between two fluids.

 

  • R134a/R290;
  • 3kgs/6.6lbs;
  • Capacity: 100~550W;
  • Voltage: 12V/24V/48V;
  • Size: 275x175x138mm;
  • The mini dc compressor provides peak performance.

 

Copper Coil Chiller

Copper Coil Liquid Chiller uses a copper coil tube heat exchanger to transfer heat between two fluids.

 

  • R134a/R290
  • 3kgs/6.6lbs;
  • Capacity: 100~550W;
  • Voltage: 12V/24V/48V;
  • Size: 275x175x138mm;
  • The mini dc compressor provides peak performance.

 

Copper coil liquid chiller
Mini Water Chiller-RIGID HVAC

Mini Water Chiller

Ultra small Plate Liquid Chiller with mini micro-channel condenser.

 

  • R134a only;
  • 2.5 kgs/5.5lbs;
  • Capacity: 100~550W;
  • Voltage: 12V/24V/48V;
  • Size: 200x230x145 mm;
  • The mini dc compressor provides peak performance.

 

Compact Liquid Chiller Application

Laser cutting
Laser Cutting
Hair Removal
Medical Device
EV battery cooling
EV Battery
3D printer
3D Printer

Why Choose Rigid Compact Liquid Chillers

key performance
Outstanding Capacity

Smaller in size, but higher in performance suits laser diodes, beverages, electronics, batteries, coolers, boxes, vans, etc.

high COP
Higher COP

The inverter variable speeds PCB board (2,000 rpm~6,500 rpm) provides a higher Coefficient Of Performance >3.5W/W.

battery charge
DC Power Supply

The DC Power Supply 12V, 24V, and 48V is tailored for mobile and off-grid air conditioning and refrigeration applications.

RIGID HVAC CO., LTD Building
State-of-the-Art Technology of Microclimate Cooling System

RIGID Liquid Chiller Module (LCM) uses miniature dc compressor to cool the liquid. LCM includes Miniature Compressor, Driver Board, Condenser, Evaporator and other cooling parts. It provides core cooling and refrigerant control mode is capillary tube. This subsystem is full charged with R134a and oil and ready to use. It allows end users to adapt to the coolant fittings for ultimate flexibility.

 

Compact Liquid System Specifications PDF

  • Packaged very well in strong wooden container. Great customer service and follow up. Documentation provided separately by representatives. Great product, execution, and delivery!

    - Engineer William, USA
  • Great service, fast and quick shipping 🙂 A+++ seller !

    - Co-founder Manuel, Canada
  • Prompt and helpful staff. Shipping was fast and clean. Not much use for the DIY’er without your own research, staff knowledge about my application was vague and It wasn’t till after my purchase I discovered this project demands a compressor in the 80+ amp range so my mini compressor sits unused waiting for some other future project.

    - Director Jason, USA
  • Grate product works well. Used for chilling water that’s pumped though a cooling vest. Surprisingly quiet even with compressor running on full. Could have done with more documentation for the pinout of control bord and examples of controling using the pwm header and an arduino. But product was grate and was nicely packed and staff were amazingly helpfull in getting my project off the ground. 10/10 would recommend.

    - CEO Tux, USA

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Frequently Asked Questions

  • Extremely small, but high performance
  • DC Rotary Variable speed running on 12V, 24, 48V DC
  • Compact & precise design providing reliable results to cooling and refrigeration
  • Small & light weight configuration is ideal for a wide range of small refrigeration application
  • Variable speed refrigerated dc compressor can operate in battery, vehicle, grid or solar power
1. What’s Liquid Chiller?

Liquid Chiller cooling refers to cooling by means of the convection or circulation of a liquid. It is a method of heat removal from components and devices. As opposed to air cooling, the liquid is used as the heat conductor. Usually, water is the best heat conductor. Water cooling is commonly used for cooling precise instruments, lasers, and lab tests. Recently, small water chillers have also been used for various major components cooling. For example, it is applied inside high-end personal computers such as CPU, GPU, and motherboards. The main mechanism for water cooling is convective heat transfer. It includes:

  • Water cooling
  • Liquid cooling for computers
  • Cooling by convection or circulation of coolant
  • Liquid Cooling and Body Vest Cooling
  • Laser and Precise Instrument Cooling
2. What’s RIGID Compact Liquid Chiller?

RIGID liquid chiller module is an integrated cooling sub-system. It is specially used for small-footprint cooling applications where space and weight are critical. The LCM includes Miniature Compressor, Driver Board, Condenser, Evaporator, and other small cooling parts. It provides core cooling and refrigerant control mode in a capillary tube. This subsystem is fully charged with R134a and oil and is ready to use. It allows end-users to adapt to the coolant fittings for ultimate flexibility.

RIGID liquid chiller module is the world’s lightest weight and very compact footprint. It is particularly designed for small liquid circulatory cooling, such as laser manufacturers, laboratory, hospital labs, large end users, and system integrators.

RIGID patent mini dc compressor drives the refrigerant directly through the heat exchangers. This concept eliminates the need for a water cooling loop (water pump, reservoir and associated tubing) resulting in a greatly simplified cooling system.

The micro LCM serves as a source of chilled water for circulation through liquid pipes. The chilled water of the pipes has direct contact with the heat-producing source to take away the heat.

3. Why RIGID Develop Compact Liquid Chillers?

To meet the growing demand of small cooling systems, RIGID has developed compact liquid chiller modules for several customers. At first, these compact cooling modules are used for portable and compact water chiller and small device cooling. Later, They are widely used in medical, aesthetic, laboratory, military who expressed a need for a compact, lightweight liquid chiller, which would meet the environmental stresses of the harshest environments while still provided sufficient cooling or heating.

The system has both heating and cooling capabilities and circulates thermally regulated (+/- 0.5°C) coolant to a customer cold plate or heat exchanger. The system has a built-in pump and reservoir to circulate the coolant, which allows system to function without the use of a fill kit. The system also has a communication port which allows the user to monitor the system performance and choose the operating temperature.

The compact design gives the user flexibility to design this chiller into their system or have is reside as a separate unit. Also, the cold plate, which ultimately removes heat from the payload, can exist remotely from the chiller and can be designed as appropriate.

The chiller has been designed to meet the requirements of mobile applications where it may be subjected to shock, vibration, and a variety of environmental conditions.

4. How do RIGID Compact Liquid Chillers/Modules Work?

RIGID Liquid Chiller excels at delivering cooling to concentrated heat sources such as laser diodes, laser cooling, and medical device and for delivering cooled fluid such as water into remote or compact locations, where the cooling assembly itself cannot be located.

The basic operation is simple: fluid flows in one tube, it is cooled by a mini refrigerated compressor, and then it flows out the other tube. An external pump is required in the system.

Plus, a mini DC compressor is used to minimize the cooler’s footprint and provides strong capacity at the same time, which is important to a compact liquid cooling system. That is also RIGID’s strong point.

5. How Many Types Of RIGID Compact Liquid Chillers?

At present, RIGID has 6 types of standard DC Liquid Chillers:

  1. Coaxial Liquid Chiller
  2. Plate Liquid Chiller
  3. Mini Water Chiller
  4. Cooper Coil Chiller
  5. Stainless st. Coil Chiller
  6. DC Condensing Unit

Rigid also provides custom cooling solutions to meet clients’ challenging cooling requirements. Many of the cooling systems & modules which Rigid has designed are very well-received by customers.

6. Does RIGID Company Offers Customized Service?

Sure, custom-made and design abilities are RIGID’s strengths.

RIGID specializes in the design of miniature refrigeration systems. We work directly with our customers to provide custom cooling solutions to meet their specific requirements.

Apart from standard HVAC products, we also offer custom cooling systems that can be built to your special demands. Ultimately, RIGID small cooling systems are intended to leverage our refrigeration expertise while giving end users awesome cooling solutions. RIGID continues to exceed customers’ expectations.

7. What're RIGID Compact Liquid Chiller Features?

RIGID compact chillers supply various radiator configurations: Plate&Frame, Coaxial Stainless Steel, and Coil type evaporators (heat exchanger). Those chiller modules can be easily integrated into the customer’s chiller, or directly into their assembly.

Features:

  • Weight: 6.6 lbs / 3.0kgs;
  • 12V 24V 48V DC input;
  • Inverter brushless compressor;
  • 300Btu~1,600Btu cooling capacity.

Key Benefits:

  • Miniature DC compressor;
  • Stationary or portable available;
  • Minimize weight&footprint&noise;
  • Compact completely integrated for precise thermal control;
8. What are RIGID Compact Liquid Chillers Applications?

RIGID Technology has extensive experience in designing compact & mobile cooling modules and water chillers for medical, food, laboratory, laser, telecommunications, commercial, industrial, and most other markets.

Major Applications including:

  • Laser/Chip
  • Laboratory
  • Electronics
  • Life Science
  • Medical Device
  • Electric Vehicles
  • Vertical Farming
  • Drone Docking Station
  • Battery Storage System
  • Mini Water-chilled System
9. What You Can Expect From Compact Liquid Chillers?

RIGID Compact Liquid Chillers and custom/OEM mini HVAC systems are designed to meet your exact, small cooling requirements while minimizing cost, size, weight, and power consumption. This, in turn, helps reduce the size and cost of the power supply making your end product even more competitive!

10. What Factors Should Be Considered by Selecting a Chiller Unit?

1. Cooling Capacity

This is usually defined as the specified nominal cooling capacity at normal working conditions of the system in watts, according to evaporating and condensing temperatures. The capacity is determined by the mass flow rate of the refrigerant, which depends on the condensing unit compressor’s displacement, RPM, and volumetric efficiency. RIGID compact liquid chiller module refrigeration capacity ranges from 100W to 550W. For Large Power Chiller (880W~1,780W), click here!

2. Refrigerant Type

Refrigerant selection can be made on the basis of availability, performance, and ecological considerations. RIGID liquid chiller module has been verified for use with R134a refrigerant.

3. Ambient Temperature

RIGID liquid chiller modules are usually intended for indoor use, and a minimum of +5ºC is required in order for proper lubrication. In 2017, RIGID has successfully developed a T-tropical series mini compressor, which is able to work at 55C degrees ambient temperature.

4. Electrical Power Available

RIGID liquid chiller modules are used in mobile or portable refrigeration systems. Its DC power is produced by batteries, fuel cells, vehicle alternators, solar panels, or an AC inverter power supply. The compressor must be selected for use according to the DC voltage available. RIGID compressors are available in 12V, 24V, and 48V versions.

5. Size and Cooling

RIGID liquid chiller modules are extremely small, and high-performance for end users’ direct refrigeration devices. Its size is only 7.85×6.3×6.7 inches and weighing only 6.6 lbs. Current RIGID liquid chillers produce as much as 100W to 550W.

11. What Parts Are RIGID Compact Liquid Chillers Included?

RIGID Compact Liquid Chiller (LCM) is a compact, hermetically sealed refrigeration system.

It includes a mini compressor (variable speed DC), a drive board (sine wave), a condenser, an evaporator, a capillary tube or expansion valve, a filter drier, blowers and fans, and other small refrigeration parts.

Plus, the compact chiller is fully charged with refrigeration before shipping. It is insulated and mounted to a baseplate to drop directly into the end application.

The user connects their coolant loop to the evaporator and provides airflow over the condenser. The user can interface with the driver board to provide compressor speed control as desired.

12. What's the Difference Between RIGID Mini Compressor and Thermoelectric Systems?

When RIGID Mini Compressor is used in a refrigeration system together with a high-performance condenser and evaporator, the complete refrigeration system can be incorporated within a package as small as 100 in3 (1.64 liters). This allows a major space reallocation in the cabinet, namely much less volume for the refrigeration system and considerably more volume for product storage space. There’s also a weight reduction of approximately 10 lbs (4.54 kg) just from the use of mini-compressors. But for the most part, space savings are usually considered more important than weight savings in most refrigerated appliances.

A small vapor compression cooling system using RIGID miniature compressor would have even larger performance and efficiency advantages over thermoelectric coolers often used in various products in the absence of small compressors before. Above the cooling capacity range of 100W, the vapor compression-based system will be far superior to the thermoelectric systems: ¼ to ½ the weight and volume, and 1/3 to ½ the power consumption compared to thermoelectric systems.

Mini compressor - RIGID

13. RIGID Compact Liquid Chillers Working Principle.

liquid chiller working principle

14. Why Choose RIGID Compact Liquid Chillers?

RIGID circulatory liquid chiller modules are self-contained high-efficient refrigeration compressors with R134A coolant, the smallest condenser and evaporator, filter drier and driver board, etc. All these refrigeration parts are well integrated into one unit, with sophisticated design by our skilled engineers. It serves as a source of chilled water for circulation through the water pipes, and the unit has the smallest footprint and weight making it portable.

  • Extremely small, but high performance
  • DC Rotary Variable speed running on 12V, 24, and 48V DC
  • Compact & precise design provides reliable results for cooling and refrigeration
  • A small & lightweight configuration is ideal for a wide range of small refrigeration application
  • Variable speed refrigerated dc compressor can operate in battery, vehicle, grid, or solar power
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