Exair FAQ Library

The Cold Gun is an engineered, pre-set vortex tube product that includes heat shielding, sound muffling, and magnetic mount to facilitate use in machining applications. The unit is pre-set for maximum refrigeration. The 5215 and 5315 models will produce 1000 Btu/hr. of cooling power with 100 PSIG input pressure. The 5230 and 5330 models will produce 2000 Btu/hr. of cooling power with 100 PSIG input pressure.

The Adjustable Spot Cooler is very similar in form and function to the Cold Gun. However, it is "adjustable" because the temperature drop that can be achieved is variable with the use of an integral valve that regulates temperature drop. The flow rate consumed by the Adjustable Spot Cooler is also variable with the use of 3 different flow rate adjustments. The cooling power of an Adjustable Spot Cooler can be as high as 2000 Btu/hr. with 100 PSIG input pressure.

The 5200 and 5300 series utilize the same cold air producing Vortex Tube. The only difference is the hose kit that is included with each model. Models 5215 and 5230 are shipped with a single-point hose kit. Models 5315 and 5330 are shipped with a dual-point hose kit to provide chilled air to two points instead of one.

The Vortex Tube is the fundamental component inside all the applied EXAIR products that generate cold airflow. The Vortex Tube is available in 3 different sizes and produces a wide span of cooling capacities. All models shown in the catalog have an adjustable valve at the hot end that can change the proportions of hot and cold airflow to their respective ends. On special order, this valve can be replaced with a preset orifice that will provide a pre-determined amount of temperature drop/rise. The Vortex Tube also contains a series of inserts called “generators” that offer a wide range of flow rates for each Vortex Tube size. These generators size the flow to the application.

Most of the applied products (Cabinet Cooler, Cold Gun, Mini Cooler and Component Cooler) have a fixed total flow capacity that is ideal for that product. The valve has been replaced with a preset orifice that allows the Vortex Tube to deliver the highest cooling capacity available. The exception is the Adjustable Spot Cooler, where the temperature is adjustable and flow rates can be changed by using the interchangeable generators. All of these cold air products include other features that make them easy to mount and keep the noise level low.