7000 PSIG - UNICUS® 4S & 4i
Both BAUER UNICUS® all-in-one packages are designed for simplified installation and single point operations.
The 7000 PSIG UNICUS® package features the same rich scope of supply amenities found on the 5000 or 6000 psig products, but with upgraded system components for enhanced safe and reliable operations at 7000 psig. Each system is available with either a 4 or 5-stage performance-proven BAUER air cooled compressor, built for continuous operations at 7000 psig. BAUER offers two (2) modes of pneumatic operations, either with manual controls incorporated within the UNICUS® 4S, or fully automated controls on the UNICUS® 4i. Whichever platform you select will come as standard with four (4) 7000 PSIG rated ASME air storage cylinders, with each cylinder affixed with its own ASME coded safety relief valve and drain valve, with the latter piped to a convenient package location; just in case you must drain the cylinder(s). Additionally, each model incorporates an intuitive operations panel-mounted HMI, ensuring that the operator can ergonomically control and monitor all system functions. BAUER offers several system options, allowing you to customize the system to meet your department's specific requirements.
When your department is ready to step up to the industry standard all-in-one package, look to BAUER.

Need assistance with selecting the correct solution to meet your specific requirements?
To see the entire Breathing Air Brochure
SYSTEM FOOTPRINT
DIMENSIONS L x W x H inches (mm)
- 101” x 38” x 78” (2565mm x 965mm x 1981mm)
WEIGHT pounds (kg)
- 4350 - 4550 lb (1973 - 2064 kg)
STANDARD SCOPE OF SUPPLY
- BAUER breathing air purification system with B-SECURUS
- BAUER PLC-based controller with HMI operator interface
- NEMA 4-rated electrical enclosure
- Automatic condensate drain system with non-corrosive condensate reservoir and integrated float sensor and automatic “Full” indication and compressor shutdown
- Two (2) 6000 PSIG UN code stamped air cylinders
- NFPA 1901 2016 edition compliant two (2) position containment fill station accommodates SCBA or SCUBA cylinders up to 31” overall length
- Unique diesel drive system incorporating our exclusive automatic belt tensioning system
- Powder coat paint for a hard, durable finish
- Hydraulic surge brakes with breakaway actuator
- Four (4) bank dual-function cascade controls with air direction valve
- Formed structural steel frame designed and built by BAUER
- Hypalon® type cover protection for the operations panel and fill station
- Refill port
- CO monitoring system with calibration kit
- 2” ball hitch
AVAILABLE ACCESSORIES (FACTORY INSTALLED)
- CO monitoring system
- 100 ft high pressure cabinet enclosed hose reel
- Panel mounted remote fill hose connection
- Dual Fill/3 position
- Tri Fill/3 position
- B-VIRUS FREE® (Dealer Installed)
- H2S monitoring system
TECHNICAL DATA
Model | Charging Rate1 | Number of Stages | Motor | FAD2 | RPM | Purification System | ||
---|---|---|---|---|---|---|---|---|
SCFM | l/min | HP | kW | |||||
7000 PSIG (483 BAR) | ||||||||
UN 4S-15/7K | 13 | 368 | 4 | 15 | 11 | 10.8 | 960 | P5 B-SECURUS |
UN 4S-20/7K | 20 | 566 | 5 | 20 | 15 | 17 | 1300 | P5 B-SECURUS |
UN 4i-15/7K | 13 | 368 | 4 | 15 | 11 | 10.8 | 960 | P5 B-SECURUS |
UN 4i-20/7K | 20 | 566 | 5 | 20 | 15 | 17 | 1300 | 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.
E3=Three phase electric, 208/230/460 VAC/60 Hz. Other voltages available on request. Dimensions and weight are approximate and are subject to change.