Jun Air Compressors

JUN-AIR: Quiet, compact compressors for continuous use in medical, dental, and laboratory environments. Oil-lubricated or oil-free. High reliability, low vibration. Part of The Gast Group, with a worldwide service and parts network.

What is JUN-AIR?
JUN-AIR stands for low-noise, sustainable compressors that deliver stable pressure with minimal maintenance requirements. Thanks to quiet motors and a low-vibration design, they are suitable for spaces where people work: treatment rooms, laboratories, analysis and measurement rooms. JUN-AIR is part of The Gast Group and benefits from an international service network and extensive engineering expertise.

Why choose JUN-AIR?

  • Low noise – designed for use in close proximity to users and equipment (no separate compressor room required).
  • Reliable – proven components, both oil-lubricated and oil-free versions; long service life under continuous operation.
  • Clean air – can be combined with filtration and adsorption dryers to provide class-compliant compressed air for critical applications.
  • Applications – dental, medical, laboratory, food & beverage, general industry.

Air treatment (recommended)
For dry and clean compressed air, Tech-Air recommends a pre-filter & water separator at the inlet and an adsorption dryer after the compressor. For bulk water removal: nano F1 water separator (up to 99% liquid separation). For constant dew points down to −40 °C: nano D-series (D1/D2/D3) drying systems.

Configuration & selection

  • Oil-free (cleanroom/dental patient environment): minimal emissions; combine with fine filtration and a dryer.
  • Oil-lubricated (general laboratories/industry): higher efficiency and service life; combine with after-treatment to achieve the desired ISO 8573-1 class.
  • Tank options: coated or stainless steel tanks for humid environments; automatic condensate drain.
  • Dryers & filters: nano D-series (−20/−40/−70 °C options) and nano F1 water separator at the front of the air treatment chain.

Installation advice

  • Install on a vibration-free, well-ventilated location; allow sufficient service space around the unit.
  • Use compressed air piping with the correct diameter and an isolatable bypass around dryers/filters.
  • Prevent condensation issues: water separator immediately after the aftercooler, dryer after filtration.
  • Electrical: power supply according to motor specification; voltage drop <10% for reliable starting and operation.

Maintenance (brief)

  • Periodic inspection/replacement of filters (intake and compressed air).
  • Check and automate condensate drainage (preferably a float drain).
  • For oil-lubricated versions: check oil level and follow the oil change interval as specified.
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