Vacuum Table Presair SwitchesPresairs’ vacuum monitor is a great solution for CNC machines that utilize a vacuum table. The tables are used with flat sheets for metals, woods, papers, foils, and plastics.

Vacuum tables’ generate hold-down force, due to the difference in vacuum under the actual part. There is also atmospheric pressure that’s pushing down from above. Ultimately, keeping a flat surface  when milling, drilling, carving, engraving, or cutting is crucial in order to ensure precise measurements. This is because the slightest drop or spike in vacuum can cause a bowed table surface. The automation capability of a CNC machine is an important specification as it requires no human to operate the machine. Instead, a computer independently performs the job. This avoids down time or automation issues, which saves time and reduces bottlenecks.

Welcome to the perfect notification product for monitoring vacuum! Designed for monitoring negative pressure to notify personnel as soon as loss of vacuum begins to occur or increases. These simple vacuum monitoring solutions feature a flashing light (optional audible alarm) that’s designed to grab the attention anytime vacuum is rising too high or falling too low in a system.   Preventing & fixing issues before they cause significant downtime!

Presair’s vacuum alarm is available as field adjustable or factory set.

Built with a field adjustable vacuum switch, this model can be set directly by the user with a range of 0.25-300 inches of water. It can monitor vacuum rise or fall at a the user’s set point using the stack light to notify light only or light and audible alarm.

Presair offers a factory set version with a smaller foot print than the adjustable vacuum monitor. If the negative pressure in your system drops below or above your specified vacuum, the stack light will notify using the light only or the light and audio.

  • Multiple notification options available
  • Variety of air connections available
  • Pressure range of 0.25 inches of water to 300 inches of water
  • Protective switch housing options for tough environments
  • The adjustable pressure switch is UL & cUL rated for 100,000 cycles at 5 Amps @ 240VAC.
  • Stack light mounting options

How to Learn more about vacuum monitor  Buy vacuum monitor


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Pneumatic Switches

Presair pneumatic switches are great for safe, economical control of consumer, industrial, medical or other products and appliances in wet, chemical or explosive atmospheres, or just for added safety.

High Quality

Presair switches are 100% testing before leaving our facilities.

Made in U.S.A.

Products are designed & manufactured in Eau Claire, Wisconsin, USA.

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