The CF390MK-10.5 is a trailer-mounted, diesel-powered air compressor designed to supply compressed air for industrial and construction work, including sandblasting. It uses a Cummins diesel engine and delivers a stated airflow of 11 m³/min, or 390 CFM, at a rated pressure of 10.5 bar, or 152.5 PSI. Its towable configuration is intended to support transport between job sites. The compressor includes an airend designed to provide consistent airflow and pressure, an integrated pneumatic control system that adjusts engine speed according to air demand, and controls that monitor operating conditions. The listed design features include optional single-stage airends and variable speed drives, compact packaging for access during maintenance, and components intended to limit leaks. Color can be customized. Typical applications include sandblasting, construction, mining, oil and gas projects, pipeline testing, and operating pneumatic tools, including at remote sites. Operators transport the unit to a work location, connect it to the equipment requiring compressed air, and use the controls to supply air according to demand. CFAIR also offers configuration and customization based on customer requirements.