Cold Gun

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 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 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.

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

• Improves production rates
• Prevents burning
• Extends tool life - reduces breakage
• Improves tolerance control
• Prevents smearing of metal or 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

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 5215 Cold Gun System

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 5215 Cold Gun System

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

Model 5215 Cold Gun System

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.

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 completeinformation on vortex tube operation, see page 175 of this catalog.) Secondary air is drawn in (2). The Cold Gun's hot airstream is muffl ed and discharged through the hot air exhaust (3). The cold air (4) is muffled and discharged through the fl exible 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).