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Dual Channel Chillers

Advanced dual-channel cooling systems with two independent circuits for precise temperature control of laser oscillators and optical systems, helping protect beam quality and prevent condensation-related issues.
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Introduction

Atcorp offers dual channel chiller solutions for laser cutting, laser welding and other applications requiring two independent cooling temperatures in one compact system. Separate water circuits allow the laser oscillator and optical system to operate at their respective temperature set points, with control precision of up to ±1°C and cooling capacities extending from approximately 1.5 to 55 kW across the referenced range.

Key Benefits

Two Independent Circuits
Laser Protection
Dual High-Pressure Pumps
Precise Temperature Control
Condensation Prevention
Wide Cooling Range

Why Choose Dual Channel Chillers?

Laser systems often have different cooling requirements for the oscillator and optical components. A conventional single-circuit chiller cannot independently maintain two different temperature set points. A dual channel chiller solves this by providing two isolated cooling circuits within one system, allowing each circuit to be controlled according to the needs of the connected component.
Specification Details
Cooling Capacity Range Approx. 1.5–55 kW
Cooling Circuits 2 Independent Circuits
Primary Circuit Laser Oscillator
Secondary Circuit Optical System / Mirror Circuit
Oscillator Liquid Temperature 10–30°C
Optical System Temperature 25–40°C
Optical Temperature Difference Typically ≥5°C above oscillator setting
Oscillator Control Precision Up to ±1.0°C / ±0.5°C on applicable models
Optical Control Precision ±1.0°C
Ambient Temperature Approx. 5–45°C; up to 50°C on applicable models
Oscillator Evaporator SUS316 Brazed Plate Heat Exchanger
Optical Evaporator Stainless Steel Tube Heat Exchanger
Pumps Independent Multistage Centrifugal Pumps
Water Tanks Two Independent Tanks
Refrigerant R410A / R407C depending on model
Compressor Rotary / Scroll, model dependent
Condenser Finned Tube, Forced Air Cooled
Control Hot Gas Bypass / Inverter Control
Communication RS485 Optional
Installation Caster-Mounted

A dual channel chiller uses two independent cooling circuits to provide separate temperature-controlled water streams for the laser oscillator and optical system.

 

Step 1 – Heat Generation
The laser oscillator and optical components generate heat during operation.

 

Step 2 – Independent Water Circulation
Two separate pumps circulate water through their respective cooling circuits.

 

Step 3 – Oscillator Cooling
The primary circuit removes heat from the laser oscillator and maintains its required temperature.

 

Step 4 – Optical Cooling
The secondary circuit independently cools the optical system at a different, typically higher, temperature.

 

Step 5 – Refrigeration
Each circuit transfers heat through its dedicated heat-exchange arrangement.

 

Step 6 – Temperature Control
The chiller continuously regulates both circuits to maintain their individual temperature set points.

 

Step 7 – Continuous Operation
The two circuits operate simultaneously without one circuit compromising the temperature requirements of the other.

 

This configuration is particularly valuable for laser cutting and welding systems where the oscillator and optics have different thermal requirements.

Independent Temperature Control

Two isolated water circuits allow the oscillator and optical system to operate at different temperature set points.

 

Stable Laser Performance

Precise oscillator cooling helps maintain stable operating conditions and supports consistent laser performance.

 

Reduced Condensation Risk

The optical circuit can operate at a higher temperature than the oscillator circuit, helping reduce condensation on lenses and optical components.

 

Dual Pump Configuration

Independent multistage centrifugal pumps provide dedicated circulation for the two cooling circuits.

 

Separate Water Tanks

Two integrated SS304 water tanks maintain independent water circuits within the same chiller package.

 

Durable Heat Exchangers

The oscillator circuit uses SUS316 brazed plate heat exchangers, while the optical circuit uses stainless steel tube heat exchangers.

 

Wide Operating Range

The oscillator circuit supports approximately 10–30°C, while the optical circuit can operate around 25–40°C depending on configuration.

 

Easy Laser Machine Integration

Remote ON/OFF and potential-free status contacts allow the chiller to communicate with the main laser machine.

Core Features

  • Two completely independent water circuits
  • Independent oscillator and optical cooling
  • Two integrated SS304 water tanks
  • Two independent circulation pumps
  • SUS316 brazed plate heat exchanger
  • Stainless steel optical-system heat exchanger
  • High-pressure pump configuration
  • Built-in heaters for low-temperature environments
  • Water-level indication for both circuits
  • Air-cooled condenser
  • Rotary or scroll compressor depending on model
  • Hot-gas bypass / inverter control
  • Remote ON/OFF
  • Potential-free status contacts
  • Dust-filter mesh
  • Caster-mounted construction
  • Powder-coated frame

 

Optional Features

  • RS485 communication
  • Inverter-driven fan motors
  • Model-specific automation and monitoring
  • Application-specific pump and flow configuration

Industrial Applications

Dual channel chillers are primarily suited to laser and precision equipment where separate temperature-controlled cooling circuits are required.
Fiber Laser Cutting
Provides independent cooling for the laser oscillator and optical system.
Laser Welding
Maintains separate thermal conditions for laser generation and optical components.
Sheet Metal Laser Cutting
Supports continuous cooling of high-power laser cutting systems.
Laser Processing
Supports stable thermal conditions for demanding industrial laser applications.
Wire EDM
Dual-temperature cooling can support equipment requiring independent thermal management circuits.

Frequently Asked Questions

Find answers about dual channel chillers, independent cooling circuits, laser temperature control, condensation prevention and industrial applications.
A dual channel chiller contains two independent cooling circuits within a single chiller package. Each circuit can maintain a different temperature, making it particularly suitable for laser systems where the oscillator and optical components have different cooling requirements.
The laser oscillator and optical components can require different operating temperatures. Keeping them on independent circuits allows each component to receive the appropriate cooling without compromising the temperature requirements of the other.
The optical circuit can be maintained at a higher temperature than the oscillator circuit. This temperature difference helps keep optical components above conditions where condensation could form on lenses or mirrors.
The oscillator circuit generally operates between 10°C and 30°C, while the optical circuit can operate approximately between 25°C and 40°C, depending on the model and application.
The referenced range provides approximately ±1.0°C control for both circuits, while certain configurations can provide tighter oscillator control of approximately ±0.5°C.
Yes. Atcorp can help Indian laser-system users evaluate laser power, oscillator heat load, optical cooling requirements, water temperature, flow rate and ambient conditions to identify and supply a suitable dual channel chiller solution.

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