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Cold Gun Aircoolant Systems ™

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

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

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 28°C (50°F) below supply air temperature. Operation is quiet 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 optimise the gun’s cooling capability.

How the Cold Gun Works

The standard Cold Gun and High Power Cold Gun incorporate a vortex tube to convert an ordinary supply of compressed air (1) into two low pressure streams, one hot and one cold. (For complete information on vortex tube operation, see Vortex Tubes.) Secondary air is drawn in (2). The Cold Gun’s hot airstream is muffled and discharged through the hot air exhaust (3). The cold air (4) is muffled and discharged through the flexible hose (5), which directs it to the point of use. Easy mounting and portability are provided through the use of an attached magnetic base (6).

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Need More Cooling?

EXAIR’s High Power Cold Gun Aircoolant System produces twice the airflow of the standard Cold Gun, doubling the cooling capability. It produces cold air at 28°C (50°F) below the supply air temperature so the air is as cold as possible without freezing up. Two systems are available: The Model 5230 High Power Cold Gun with Single Point Hose Kit and Model 5330 High Power Cold Gun with Dual Point Hose Kit.

Selecting The Right Model

Cold Gun Aircoolant Systems are available with either a Single Point or Dual Point Hose Kit.

The Single Point Hose Kit (included with the Model 5215 Cold Gun and Model 5230 High Power Cold Gun) is recommended for applications where a concentrated airflow is needed such as drilling and grinding operations. Includes a 3/8” (10mm) cone nozzle and a 1-1/4” (32mm) fan nozzle.

The Dual Point Hose Kit (included with the Model 5315 Cold Gun and Model 5330 High Power Cold Gun) is recommended for applications where the heat is generated over a larger surface area such as band sawing, milling, chill rolls and hot melt adhesives. Includes (2) 1/4” (6mm) cone nozzles and (2) 1” (25mm) fan nozzles.

A Cold Gun System with the Model 5901 Single Point Hose Kit can be easily converted to a dual point system with the purchase of the Model 5902 Dual Point Hose Kit.


Model 5215 Cold Gun System (one cold outlet) includes Cold Gun, Single Point Hose Kit, 3/8″ (10mm) Cone Nozzle, 1-1/4″ (32mm) Fan Nozzle, Manual Drain Filter Separator.


Model 5315 Cold Gun System (two cold outlets) includes Cold Gun, Dual Point Hose Kit, (2) 1/4″ (6mm) Cone Nozzles, (2) 1″ (25mm) Fan Nozzles, Manual Drain Filter Separator.


Model 5230 High Power Cold Gun System (one cold outlet) includes High Power Cold Gun, Single Point Hose Kit, 3/8″ (10mm) Cone Nozzle, 1-1/4″ (32mm) Fan Nozzle, Automatic Drain Filter Separator.


Model 5330 High Power Cold Gun System (two cold outlets) includes High Power Cold Gun, Dual Point Hose Kit, (2) 1/4″ (6mm) Cone Nozzles, (2) 1″ (25mm) Fan Nozzles, Automatic Drain Filter Separator.

Performance

  Pressure Supply Air Consumption Sound Level
Model PSIG BAR SCFM SLPM dBA
Cold Gun
5215, 5315
100 6.9 15 425 70
High Power Cold Gun
5230, 5330
100 6.9 30 850 82

 

Controlling The Cold Air

Cold air eliminates heat cracking of the carbide tool during sharpening.

The EXAIR Cold Gun gives instant cold air when filtered compressed air is supplied to it. Cycling on and off is a good way to save air. For on and off control, use a Model 9012 Manual Shutoff Valve. To turn the Cold Gun on with the machine, a Solenoid Valve, such as Model 9020, may be used and wired through the machine control switch. This method is ideal for hand grinders and drill sharpeners.

The Compressed Air Supply

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

The Cold Gun is designed to use full line pressure of 80-100 PSIG (5.5-6.9 BAR). Temperature drop and flow are reduced when lower input pressures are applied. The use of clean, filtered air is essential to the operation of the Cold Gun. A filter separator that removes moisture, dirt and other particulates from the compressed air is included with each Cold Gun System. An optional Oil Removal Filter is also available.

Applications

  • Tool sharpening
  • Drill & cutter grinding
  • Routing
  • Plunge and form grinding
  • Milling
  • Surface grinding
  • Drilling
  • Tyre grinding
  • Band sawing
  • Plastic machining
  • Laser cutting
  • Chill rolls
  • Setting hot melt adhesives

Advantages

  • 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
  • Compact, lightweight, portable
  • No moving parts – maintenance free
  • Quiet
  • No coolant cost`
  • No electricity

Model 5215 Cold Gun System 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.

Model 5315 Cold Gun System Chill Roll Cooling a roll with -7°C (20°F) air keeps the material on the surface from bunching up, jamming or tearing. The metal surface transfers the cold temperature to the product.

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.

Model 5230 High Power 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.

Application Spotlight

Confirms Benefits of the EXAIR Cold Gun

Tooling costs a lot of money to replace. That’s only part of the problem. As the tools wear out, you can expect:
Slowed production and downtime to change out the tooling.
Poor tolerances and decreased ...

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Dimensions

Models

Cold Gun Aircoolant Systems
Cold Gun Only
Cold Gun Aircoolant Systems
include a Cold Gun, single or dual point hose kit and manual drain filter separator (with mounting bracket)
High Power Cold Gun Only  
High Power Cold Gun Aircoolant Systems include a High Power Cold Gun, single or dual point hose kit and automatic drain filter separator (with mounting bracket)
  Cold Gun Only Model Cold Gun System with One Cold Outlet Model Cold Gun System with Two Cold Outlets Model
Cold Gun BP5015 BP5215 BP5315
High Power Cold Gun BP5030 BP5230 BP5330
Hose Kits
Model Description
5901 Single Point Hose Kit (included with 5215 and 5230)
5902 Dual Point Hose Kit (included with 5315 and 5330)

Accessories

Filters, Regulators, Valves & More

With proper filtration of dirt, moisture and oil from the compressed air supply, EXAIR compressed air products will operate for years with no maintenance required. Use a 5 micron or smaller filter separator on the compressed air supply. To prevent problems associated with oil, use a 0.03 micron or smaller oil removal filter on the compressed air supply. Pressure regulators permit easy selection of the operating pressure, providing infinite control of flow, force and air consumption.

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Installation and Maintenance Sheets

pdf
Cold Gun Aircoolant System

255.33 KB

Cold Gun Aircoolant System PDF Brochure

Vortex Tubes & Spot Cooling PDF Brochure

CAD Drawings

Catalogue Downloads

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