Cold Gun – Aircoolant System™

Replace messy mist systems – improve dry machining with clean, cold air!

Kaltluftpistole Cold Gun

What is the Cold Gun Aircoolant System

A new solution to an old problem. Heat build up on dry machining operations reduces tool life and machining rates. The Cold Gun Aircoolant System produces a stream of clean cold air at 50°F (28°C) below supply air temperature. Operation is a quiet 70 dBA and there are no moving parts to wear out. It will remove heat to prolong tool life and increase productivity on machining operations when liquid coolants cannot be used.

The Cold Gun is also an alternative to expensive mist systems. It eliminates the costs associated with the purchase and disposal of cutting fluids and worker related health problems from breathing airborne coolants or slipping on wet shop floors.

EXAIR’s Cold Gun is non-adjustable to prevent freeze-up during use. Cold airflow and temperature drop are factory set to optimize the gun’s cooling capability.

Cold Guns keep parts cool

The Model 5215 Cold Gun keeps the part
cool to the touch and prevents discoloration.

How the Cold Gun Works

Cold Gun How it works

The standard Cold Gun and High Power Cold Gun incorporate a vortex tube to convert an ordinary supply of compressed air into two low pressure streams, one hot and one cold. (For complete information on vortex tube operation, see the “Vortex Tubes and Spot Cooling Products” section of this website.) The Cold Gun’s hot airstream is muffled and discharged through the hot air exhaust. The cold air is muffled and discharged through the flexible hose, which directs it to the point of use. Easy mounting and portability is provided through the use of an attached magnetic base.

Tool Grinding

Cold air eliminates heat cracking of carbide and tool edge burning during grinding and sharpening operations. Increased tool life between regrinds is the result.

Coolant Free Tool Grinding

Model 5215 Cold Gun System

Milling & Drilling

Fly cutters up to 460mm in diameter have been cooled with the Cold Gun. Dissipating heat with cold air extends tool life, increases speeds and feeds, and improves finishes.

Flycutter Cooling

Model 5215J Cold Gun System

Chill Roll

Cooling a roll with 20°F (-7°C) air keeps the material on the surface from bunching up, jamming or tearing. The metal surface transfers the cold temperature to the product.

Coolant Free Tool Grinding

Model 5315J Cold Gun System

Laser Cutting

Cold air cools a laser cut part so it can be handled seconds later. The High Power Cold Gun has twice the cooling capacity of the standard Cold Gun, cooling the part in less time.

Coolant Free Tool Grinding

Model 5230J High Power Cold Gun System

  • Tool sharpening
  • Drill & cutter grinding
  • Routing
  • Plunge and form grinding
  • Milling
  • Surface grinding
  • Drilling
  • Tire grinding
  • Band sawing
  • Plastic machining
  • Improves production rates
  • Prevents burning
  • Extends tool life – reduces breakage
  • Improves tolerance control
  • Prevents smearing of metal and plastics
  • Finished part is dry
  • Eliminates wheel loading
  • Low cost – no coolant or electricity
  • Compact, lightweight, portable
  • No moving parts – maintenance free
  • Quiet (now only 70 dBA!)
Cool a two flute carbide cutter

The Model 5315 Cold Gun cools a two flute
3/8″ carbide cutter on a CNC, increasing
tool life by 50%.

Pressure Supply Air Consumption Sound Level
Model PSIG BAR SCFM SLPM dBA
Cold Gun 5015, 5215J, 5315J 100 6.9 15 425 72
High Power Cold Gun 5030, 5230J, 5330J 100 6.9 30 850 82
BSP Threads Available – Contact Distributor.

Model Description
5215 Cold Gun System (one cold outlet) includes Model 5015 Cold Gun (15 SCFM/425 SLPM), Single Point Hose Kit, 3/8″ (10mm) Cone Nozzle, 1-1/4″ (32mm) Fan Nozzle, and Manual Drain Filter Separator.
5230 High Power Cold Gun System (one cold outlet) includes Model 5030 Cold Gun (30 SCFM/850 SLPM), Single Point Hose Kit, 3/8″ (10mm) Cone Nozzle, 1-1/4″ (32mm) Fan Nozzle, and Automatic Drain Filter Separator.
5315 Cold Gun System (two cold outlets) includes Model 5015 Cold Gun (15 SCFM/425 SLPM), Dual Point Hose Kit, (2) 1/4″ (6mm) Cone Nozzles, (2) 1″ (25mm) Fan Nozzles, and Manual Drain Filter Separator.
5330 High Power Cold Gun System (two cold outlets) includes Model 5030 Cold Gun (30 SCFM/850 SLPM), Dual Point Hose Kit, (2) 1/4″ (6mm) Cone Nozzles, (2) 1″ (25mm) Fan Nozzles, and Automatic Drain Filter Separator.
Cold Gun, Single Point Hose Kit
Modell 5215 Cold Gun System (one cold outlet) (15 SCFM/425 SLPM) includes Cold Gun, Single Point Hose Kit, 3/8″ (10mm) Cone Nozzle, 1-1/4″ (32mm) Fan Nozzle, and Manual Drain Filter Separator.
Cold Gun, Dual Point Hose Kit
Modell 5315 Cold Gun System (two cold outlets) (15 SCFM/425 SLPM) includes Cold Gun, Dual Point Hose Kit, (2) 1/4″ (6mm) Cone Nozzles, (2) 1″ (25mm) Fan Nozzles and Manual Drain Filter Separator.
High Power Cold Gun, Single Point Hose Kit
Modell 5230 High Power Cold Gun System (one cold outlet) (30 SCFM/850 SLPM) includes High Power Cold Gun, Single Point Hose Kit, 3/8″ (10mm) Cone Nozzle, 1-1/4″ (32mm) Fan Nozzle and Automatic Drain Filter Separator.
High Power Cold Gun, Dual Point Hose Kit
Modell 5330 High Power Cold Gun System (two cold outlets) (30 SCFM/850 SLPM) includes High Power Cold Gun, Dual Point Hose Kit, (2) 1/4″ (6mm) Cone Nozzles, (2) 1″ (25mm) Fan Nozzles and Automatic Drain Filter Separator.