Cold gun cools lasers and tool tips

April 2007 Pneumatics & Hydraulics

Exair's high power cold gun produces a stream of -7°C air to reduce heat build in laser cutting and a wide variety of machining operations. The high power gun has greater cooling capability than an ordinary cold gun and operates continuously without freezing up.

The high power cold gun system incorporates a stainless steel vortex tube that converts an ordinary supply of compressed air into cold air. A flexible ball and socket hose that holds its position is used to direct the cold air to the point where the heat is generated. A magnetic base makes the gun easy to mount.

The cold gun is a low cost alternative to expensive mist systems. It eliminates the ongoing costs associated with the purchase, filtration, clean up and disposal of liquid coolants required by mist systems. There are no worker-related health problems that may result from breathing airborne coolants or slipping on wet shop floors. This technology is ideal for cooling associated with laser cutting, tool sharpening, drill and cutter grinding, milling, surface grinding, band sawing, plastic machining and grinding.

For more information contact Rodney Bradley, ETEST, +27 (0)31 702 8302, [email protected], www.etest.co.za

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