Bauer UNICUS® 4i

Model: UNICUS® 4i

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Bulk Price Eligible

Features & Specs


101" x 78" x 38"


4350-4550 lbs


Up to 6000 PSIG (414 BAR)

Charging Rate

13 to 26.4 SCFM (368 to 748 L/MIN)


10 to 20 HP (7.5 to 15 kW)


  • BAUER breathing air purification system with B-SECURUS
  • BAUER 15-inch HMI touch-screen interface
  • Solid-state auto cascade system
  • Compressor low oil pressure and high-temperature safety shutdowns
  • Emergency stop push button
  • Ergonomic system-operations panel
  • Ergonomically designed stainless steel fill adaptors with integral bleed valve
  • Automatic condensate drain system with non-corrosive condensate reservoir and integrated float sensor and automatic “Full” indication and compressor shutdown
  • Two (2) ASME code stamped air cylinders are installed in an integral rack designed to hold four cylinders
  • NFPA 1901 2016 edition compliant 3 position containment fill station accommodates SCBA or SCUBA cylinders up to 31” overall length


  • BAUER Gas-Tek™ CO monitoring system
  • RFID Reader which reads and records data from the RFID equipped cylinders
  • Hose reel for 100’ of high pressure breathing air hose
  • Reg/RF
  • Dual Fill/3 position
  • Tri Fill/3 position
  • Additional air storage cylinders

New Features!

Our auto cascade system has replaced all operations panel-mounted valves and pressure gauges which help reduce human error when filling SCBA and SCUBA cylinders.

All system controls are within the panel-mounted HMI and include:

  1. Air storage controls
  2. Independent SCBA fill pressures
  3. Independent SCBA fill speed
  4. Automatic cascade control system rated for 7000 psi service
  5. A secure and quicker way to log into the unit with a BAUER key fob

Manual cascade bypass control comes standard to fill cylinders in case of a system power loss.

Bauer Breathing Air Catalog

Frequently Asked Questions

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging and must have the original tags attached. Prior to shipping the product back please email us at [email protected] and we will send your further steps on how we can help complete your request. Please click here to see our full Refund and Return Policy.

Orders are usually shipped out within one business day of receipt of payment. Note that all Friday orders will be processed the following Monday. UPS requires a physical address, P.O. Box addresses will not be shipped with this carrier. Shipment notification will be sent via email and tracking information will be included when applicable.