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Adjustable Spot Cooler™

Cold air to -34°C from your compressed air supply for spot cooling!

The Adjustable Spot Cooler replaces flood coolant and eliminates hours of clean-up on a cast iron machining operation.

What is the Adjustable Spot Cooler?

A low cost, reliable, maintenance free solution to a variety of industrial spot cooling problems. With the turn of a knob, you can select the temperature best suited to your application. The Adjustable Spot Cooler provides a precise temperature setting from -34°C (-30°F) to room temperature.

The Adjustable Spot Cooler incorporates a vortex tube that converts an ordinary supply of compressed air into cold air.

  • It can produce temperatures from -34°C to +21°C (-30° to +70°F)
  • Parts included for flow rates 15, 25, and 30 SCFM (425, 708, and 850 SLPM). 25 SCFM (708 SLPM) generator is factory installed.
  • It can produce refrigeration up to 2,000 Btu/hr. (504 Kcal/hr.)

A swivel magnetic base provides easy mounting and portability. Flexible tubing that holds its position directs the cold air. No moving parts or CFC’s assures maintenance free operation.

The Adjustable Spot Cooler is quiet (less than 75 dBA), easily set with a thermometer and holds the temperature setting. It’s ideal for applications where mist or liquid cooling cannot be used due to part contamination or cost. Tolerances, product finish and production rates can improve dramatically.

The Adjustable Spot Cooler is available with either a single point or dual point hose kit. The single point system (Model 3825) is recommended for cooling a small surface like solder joints, hot melts or drilled plastics. The dual point system (Model 3925) is recommended when heat is generated over a larger surface area.

How the Adjustable Spot Cooler Works

The Adjustable Spot Cooler incorporates a vortex tube to convert an ordinary supply of compressed air into two low pressure streams, one hot and one cold. With the turn of a knob, the temperature control valve allows some hot air to flow through a muffling sleeve and out the hot air exhaust. The opposite end provides a cold airstream that is muffled and discharged through the flexible hose, which directs it to the point of use. The swivel magnetic base provides easy mounting and portability.

Adjusting the Spot Cooler & Controlling the Cold Air

The Adjustable Spot Cooler System can produce a full range of airflows and temperatures as determined by the knob setting and a small internal part called a generator. The generators control the SCFM (SLPM) of air consumption and are easily interchangeable.

The Adjustable Spot Cooler has a 25 SCFM (708 SLPM) generator installed that produces up to 1,700 Btu/hr. (429 Kcal/hr.). If less cooling is desired, the 15 SCFM (425 SLPM) generator, which delivers 1,000 Btu/hr. (252 Kcal/hr.), can be installed. If more cooling is needed, the 30 SCFM (850 SLPM) generator can be installed for up to 2,000 Btu/hr. (504 Kcal/hr.).

When filtered compressed air is supplied to it, the Adjustable Spot Cooler gives instant cold air. 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 Adjustable Spot Cooler on with the machine, a Solenoid Valve, such as Model 9020, may be used and wired through the machine control switch. The EFC electronic flow control can also be used.

Performance

Pressure Supply Air Consumption Sound Level
PSIG BAR SCFM SLPM dBA
100 6.9 15 425 72
100 6.9 25* 708 73
100 6.9 30 850 74

*25 SCFM (708 SLPM) generator is factory installed. Air consumption is based on generator installed.

Applications

  • Adjusting thermostats
  • Cooling solder
  • Cooling machined plastics
  • Setting hot melts
  • Cooling welding horns
  • Cooling moulded plastics
  • Electronic component cooling
  • Cooling gas samples
  • Cooling environmental chambers

Advantages

  • Adjusting thermostats
  • Cooling solder
  • Cooling machined plastics
  • Setting hot melts
  • Cooling welding horns
  • Cooling moulded plastics
  • Electronic component cooling
  • Cooling gas samples
  • Cooling environmental chambers

PVC hose is cooled at the exit of an extruder so it can be coiled immediately.

The Adjustable Spot Cooler maintains critical tolerances on machined plastic parts.

Model 3825 Adjustable Spot Cooler System includes the Adjustable Spot Cooler, Automatic Drain Filter Separator, single point hose kit with cone and fan nozzle, swivel magnetic base, 15 and 30 SCFM (425 and 850 SLPM) generators. (25 SCFM/708 SLPM generator installed.)

Electronic components stay cool during a soldering operation.

The Model 3825 Adjustable Spot Cooler can produce temperatures from -34° to +21°C (-30° to +70°F).

Model 3925 Adjustable Spot Cooler System includes the Adjustable Spot Cooler, Automatic Drain Filter Separator, dual point hose kit with cone and fan nozzles, swivel magnetic base, 15 and 30 SCFM (425 and 850 SLPM) generators. (25 SCFM/708 SLPM generator installed.)

Application Spotlight

Testing Heat Tape Thermostats

The Problem

A manufacturer of electrical heat tapes had a problem testing thermostats for accuracy. The heat tape is supposed to switch on when the outdoor temperature dips below 4.5°C (40°F) to prevent pipes from freezing or ice f...

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Dimensions

Models

Adjustable Spot Cooler Systems
Model Description
BP3725 Adjustable Spot Cooler Only
BP3825 Adjustable Spot Cooler System with One Cold Outlet
includes the Adjustable Spot Cooler with 25 SCFM (708 SLPM) generator installed, single point hose kit with cone and fan nozzle, swivel magnetic base, 15 and 30 SCFM (425 and 850 SLPM) generators, and automatic drain filter separator (with mounting bracket)
BP3825 Adjustable Spot Cooler System with Two Cold Outlets
includes the Adjustable Spot Cooler with 25 SCFM (708 SLPM) generator installed, dual point hose kit with cone and fan nozzles, swivel magnetic base, 15 and 30 SCFM (425 and 850 SLPM) generators, and automatic drain filter separator (with mounting bracket)
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

EFC Electronic Flow Control
Turn off the compressed air when it isn’t needed

EXAIR’s EFC™ is a user-friendly electronic flow control for compressed air that is designed to minimise compressed air use on blowoff, drying, cooling, conveying and static elimination operations. The EFC combines a photoelectric sensor with a timing control that limits compressed air use by turning it off when no part is present. The timing control permits easy tuning to the application requirements while providing flexibility in sensing distance.

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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 Guides

pdf
Adjustable Spot Cooler

275.11 KB

Vortex Tubes & Spot Cooling PDF Brochure

CAD Drawings

Catalogue Downloads

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