Tag Archive tool cooling

ByKager-Hightemp

KAGER COLDER – Ultra-Cold Air Generator down to -55 °C

Energy-efficient process cooling without electricity, refrigerants or moving parts

High temperatures generated during industrial manufacturing processes often reduce tool life, affect machining quality and damage temperature-sensitive components.

The KAGER COLDER Ultra-Cold Air Generator provides an efficient and reliable solution by converting standard compressed air into ultra-cold air down to -55 °C, without electricity, refrigerants or moving mechanical parts.

The system is based on the proven Joule-Thomson effect, where compressed air cools dramatically during controlled expansion.

The result is an instantly available, maintenance-free and highly efficient spot cooling solution for demanding industrial applications.


How it works

The KAGER COLDER requires only a compressed air supply.

At approximately 7 bar compressed air pressure and an inlet temperature of around 20 °C, the 190-75 SV model generates cold air down to -55 °C.

No electrical power, refrigerants or additional gases are required, making it an environmentally friendly and highly reliable cooling system.


Key Benefits

  • Ultra-cold air down to -55 °C
  • Operates using compressed air only
  • No electrical power required
  • No refrigerants
  • No moving parts
  • Virtually maintenance-free
  • Immediate cooling effect
  • Precise spot cooling
  • Clean, dry and oil-free cold air
  • Easy integration into existing production systems

Typical Industrial Applications

Metal Machining

The KAGER COLDER efficiently removes heat directly from the cutting zone, increasing machining performance while extending tool life.

Ideal for machining:

  • Titanium
  • Stainless steel
  • Inconel
  • High-strength alloys
  • Magnesium
  • Aluminum

Welding and Soldering

Localized cooling protects adjacent components from overheating while minimizing thermal distortion and residual stress.


Plastics and Glass Processing

Cold air accelerates cooling cycles, improves dimensional stability and reduces production cycle times.


Electronics Manufacturing

Non-contact cooling protects sensitive electronic components during assembly, testing and manufacturing.

Typical applications include:

  • Printed circuit boards (PCBs)
  • Semiconductors
  • Sensors
  • Power electronics
  • Electronic control units

Additional Applications

  • Tool cooling
  • Mold cooling
  • Dry machining
  • Milling
  • Turning
  • Grinding
  • Drilling
  • Laser processing
  • Test laboratories
  • Automation systems

Increase Productivity with Smart Cold Air Technology

By removing heat exactly where it is generated, the KAGER COLDER improves machining quality, extends tool life and increases production efficiency.

Typical benefits include:

  • Lower tooling costs
  • Higher cutting speeds
  • Improved surface finish
  • Reduced downtime
  • Increased process reliability
  • Higher overall productivity

Why Choose KAGER COLDER?

The KAGER COLDER combines proven engineering with exceptional reliability. Without electrical components, refrigerants or moving parts, it delivers an environmentally friendly, maintenance-free and highly efficient cooling solution for modern industrial manufacturing.

It is the ideal choice for companies seeking a cost-effective alternative to conventional cooling systems while improving productivity and process stability.

Learn more about Kager Colder

ByKager-Hightemp

COLDER Cold Air Generator – Powerful Cooling Using Compressed Air Only

The COLDER cold air generator by Kager produces extremely cold air using compressed air only – no electricity and no additional gases required. The system operates based on the Joule-Thomson effect (adiabatic, irreversible expansion), ensuring reliable and energy-efficient cooling.

The COLDER 190-75 SV model generates for example cold air down to −55 °C when connected to a compressed air line or compressor at 7 bar with an inlet air temperature of +20 °C. Installation is simple, maintenance is minimal, and operating costs are low. They are available in 4 different versions.

Typical Applications of COLDER Cold Air

COLDER cold air is widely used for heat elimination in industrial manufacturing processes, especially for:

  • Metal and plastic machining
  • Hard-to-machine materials such as titanium, stainless steel, Inconel
  • High-viscosity materials and thermoplastics
  • Dry machining, e.g. magnesium alloys

Targeted cooling of tools or workpieces results in:

  • increased cutting speeds
  • extended tool life
  • improved process stability

COLDER is also highly effective for cooling:

  • metal molds
  • printed circuit boards (PCBs)
  • semiconductors
  • electrical control and switching components

Precise Temperature Control & Stability

The outlet air temperature is adjusted via a control screw and monitored using a thermometer or sensor. With constant inlet pressure and temperature, the COLDER maintains the cold air temperature within ±0.6 °C, ensuring maximum process reliability.

⚠️ Important: The supplied compressed air must be free of oil and moisture to guarantee optimal performance and durability. They are maintenance-free.

Learn more about KAGER-Colder