BOSSAIR 900
When the job demands maximum mobile air power, the BOSSAIR 900 is the only answer. Two BOSS rotary screw airends driven off independent PTOs deliver up to 900 CFM at 150 PSI — all mounted below the truck bed, freeing your entire deck and tow hitch. The dual-speed system runs quiet at 1,500 RPM (750 CFM) and shifts to high-demand mode at 1,800 RPM (900 CFM) for the most demanding vacuum excavation, sewer cleaning, and utility operations.
With exceptional platform, the BOSSAIR 900 offers a low speed and high speed options. At a low, quiet 1500 RPM, the system produces 750 CFM! Switch into high speed at 1800 RPM and the system produces 900 CFM!
Once the PTO’s are engaged, engine torque and horsepower are transmitted to the air compressor via a properly sized tubular drive shafts. The speed control for the compressor modulates according to air demand, which offers fuel savings, as well as, reduces wear and tear on the vehicles engine. When the job is complete, simply disengage the PTO’s and continue to the next job site.
Because the PTO air compressor components become an integral part of the vehicle and are mounted below the bed, it offers many advantages you cannot get when using conventional air compressors.
• Frees up the tow hitch.
• Minimizes bed space – BOSSAIR PTO air compressor are
mounted under deck.
• Fewer parts – Compared to its towable or cross-mount counterparts.
• Light weight – Only 3,100 LBS for both systems.
• Only one engine to maintain – Simplifies preventive maintenance.
• Cost efficient – No need for additional licensing fees or insurance.
Standards
Quantity of one (1) Boss Model 900-UBI PTO drive under deck air compressor(s) to include the following as standard equipment:
- Boss oil flooded, rotary screw air-end designed to produce up to 900 CFM @ 150 PSIG continuously.
- Gear set incorporated into air-end.
- Two-year warranty on the air-end.
- Remote mount vertical oil receiver tank with filler port and lubricant level sight glass. Exterior shell of vessel to be welded so as to be one piece. Bolt-on lid with in tank replaceable coalescing filter element.
- Engine speed & air inlet controls for automatic modulation of engine speed to match air demand.
- Remote mount, self-contained, aerodynamically designed cooling package with automatic thermal sensing control to ensure proper operating temperatures.
- Replaceable spin-on compressor lubricant filter with safety bypass and 25-micron rating.
- Remote mount two-stage, dry-type air intake filter with replaceable filter.
- Instrumentation to include: hour meter, compressor lubricant temperature gauge, and air pressure gauge.
- Hoses, fittings, electrical wire, and hardware necessary for standard installation and operation.
- Safety devices to include: minimum pressure valve, compressor lube hi-temp and hi- pressure safety system, automatic blowdown device, high-pressure relief valve, and necessary warning and information decals.
- Operation, parts and maintenance manual.
Compressor Data and Minimum Chassis Specifications
- Compressor input RPM: 2300
- Compressor HP: 93
- Compressor Torque: 212 lbs/ft (condinuous duty)
Transmission mounted PTO must be capable of 302 lbs/ft intermittent duty and 212 lbs/ft continuous duty. Manual transmissions require the use of a PTO lube pump option with auxiliary lubricant cooler. PTO must be engine rotation.
Engine HP must be capable of running compressor at rated PTO % (i.e.: 140% PTO or 1.4 divided by 2300 compressor input RPM = 1642 engine RPM. Engine must be capable of 93 HP @ 1642 engine RPM).
Back of cab dimensions required for the typical cooler and receiver tank installation is 30.5″.
* Standards & specifications subject to change without notice.

