UNICUS® 4i
FULLY-AUTOMATIC, SMART, ALL-IN-ONE COMPRESSOR, STORAGE, AND FILL SYSTEM WITH RFID TECHNOLOGY
Minimizes operator training requirements and reduces opportunity for operator error through fully automatic SCBA filling functionality. We eliminated all manual valves and knobs. Easily access all pertinent process information on the unit's user-friendly HMI touchscreen
Faster, more efficient SCBA filling. The automatic cascade system reduces cylinder fill time with optimized high-pressure storage and fill management.
Effortless, safe, automatic SCBA filling. The UNICUS® 4i automatically detects the allowable fill pressure in each SCBA and fills the cylinder to its maximum-rated pressure. The automatic cascade system reduces cylinder fill time with optimized high-pressure storage and fill management.
Stays ahead of important dates. UNICUS® 4i keeps records of all hydro-testing certificates and SCBA cylinder expiration dates, sending reminders in advance. Automatically alerts operators to prevent filling expired cylinders or when hydro-testing is overdue.
Reduces overall liability exposure for fire departments by keeping departments in compliance with NFPA 1989. The system automatically creates permanent logs in the RFIDPro® app for every SCBA fill (time and date stamp, operator, fill pressure, etc.). Fire department personnel can easily generate NFPA 1989 and OSHA compliant documentation to eliminate handwritten paperwork.
Ready for anything. In the event of a total power failure, the UNICUS® 4i has a manual bypass that allows you to fill your SCBAS directly from storage- no power needed.

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:
- Air storage controls
- Independent SCBA fill pressures
- Independent SCBA fill speed
- Automatic cascade control system rated for 7000 psi service
- 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.
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To see the entire Breathing Air Brochure
SYSTEM FOOTPRINT
DIMENSIONS L X W X H inches (mm)
- 101" x 38" x 80" (2565 mm x 965 mm x 2023 mm)
WEIGHT pounds (kg)*
- 4350-4550 lbs (1973-2064 kg)
*Weights are based on a unit equipped with 4 ASMEs
Compressor Compartment
- Capable of accommodating a 13 to 26 scfm charge rate
- Insulated cabinet design for “against the wall installation”
STANDARD SCOPE OF SUPPLY
- 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
- RFID Reader, which reads and records data from the RFID-equipped cylinders
AVAILABLE ACCESSORIES (Factory Installed):
- CO monitoring system
- H2S monitoring system with audible alarm
- 100 ft high pressure cabinet enclosed hose reel
- Additional air storage cylinders
- Panel mounted remote fill hose connection
- Dual Fill/3 position
- Tri Fill/3 position
- B-VIRUS FREE® (Dealer Installed)
TECHNICAL DATA
Model | Charging Rate1 | Number of Stages | Motor | FAD2 | Purification System | ||
---|---|---|---|---|---|---|---|
SCFM | l/min | HP | kW | ||||
5000 PSIG (345 BAR) | |||||||
UNICUS 4i-26-E3 | 26.4 | 748 | 4 | 20 | 15 | 22 | P5 B-SECURUS |
UNICUS 4i-20-E3 | 21 | 595 | 4 | 15 | 11 | 17.5 | P5 B-SECURUS |
6000 PSIG (414 BAR) | |||||||
UNICUS 4i-13-E1/E3 | 13 | 368 | 4 | 10 | 7.5 | 10.8 | P2 B-SECURUS |
UNICUS 4i-18-E3 | 18 | 510 | 4 | 15 | 11 | 15 | P5 B-SECURUS |
UNICUS 4i-25-E3 | 25.2 | 714 | 5 | 20 | 15 | 21 | P5 B-SECURUS |
1) Based on recharging an 80 cubic foot tank from 500 to 3000 psig.
2) Compressor capacity referenced to standard inlet conditions. Tolerance +/- 5%