The Kaeser Mobilair M58 Utility is a 210 CFM at 100 PSI skid-mount diesel rotary-screw air compressor that puts tow-behind-class air on the deck of a service truck. A 48 hp Tier 4 Final Kubota V2403-CR-E4B common-rail diesel drives Kaeser’s SIGMA PROFILE airend, giving Class 6-7 utility, oilfield and bridge crews 200-CFM-class output without pulling a trailer cross-mounted or deck-mounted wherever the truck body allows.

Two 3/4 in. and one 1 in. NPT outlets split the air across a multi-tool circuit enough for two 90 lb breakers plus a lighter tool, or a crew of chipping hammers and rivet busters on bridge maintenance and dropping to the 145 PSI setting still yields 175 CFM for pressure-hungry tools. It shares its multi-port setup with the towable machines in our diesel compressor range, and each drop should run through a hose whip with line oiler to keep the tool lubricated.

• 210 CFM at 100 PSI continuous output; variable setting delivers 175 CFM at 145 PSI
• 48 hp Kubota V2403-CR-E4B four-cylinder common-rail diesel, Tier 4 Final; 2450-2600 RPM full load, 1800 RPM unload
• Skid-mount 84-5/8 x 33-1/8 x 55 in. powder-coated steel cabinet for cross-mount or deck-mount installation; 2,043 lb operating weight
• Air outlets: two 3/4 in. plus one 1 in. NPT for multi-tool distribution from a single deck-mount source
• 28 gal fuel tank for full-shift runtime; 76 dB(A) at 23 ft
• Applications: service-truck breakers and demolition tools, DOT and bridge maintenance, oilfield blast pots and torque tooling, pipeline line testing
• Stocked by Crowder Supply in Denver with Genuine Kaeser service parts; optional 5-year air-end warranty

Mobilair M58 Utility FAQ

What does “Utility” mean on the Kaeser M58?
It is the skid-mount version, built to cross-mount or deck-mount on a Class 6-7 service truck body instead of towing behind it tow-behind-class air without pulling a trailer.

How many air tools can the M58 run at once?
At 210 CFM and 100 PSI, its two 3/4 in. and one 1 in. NPT outlets can feed a multi-tool circuit for example two 90 lb breakers plus a lighter tool. Switching to the 145 PSI setting still delivers 175 CFM for pressure-hungry tools.

Is there a warranty on the airend?
Yes the SIGMA PROFILE airend can be covered by Kaeser’s optional 5-year air-end warranty, and Crowder Supply stocks Genuine Kaeser service parts to keep it in program. If you are still sizing between skid-mount and towable machines, the air compressor buyer’s guide compares the formats.