Our advanced diesel-driven air compressors are engineered to meet this critical need, combining mobility, durability, and oil-free performance for diverse industrial environments. PUFCO Diesel-Powered Oil-Free Air Compressors PUFCO has upgraded its core system to merge the flexibility of diesel mobile air compressors with the purity of oil-free compressor performance. Designed for industrial versatility, these units deliver contaminant-free air for sensitive processes, ensuring consistent operation even in remote or demanding settings. Whether as a primary air source or backup solution, PUFCO’s diesel oil-free compressors offer the reliability that sensitive plant operations require. PUFCO Portable Class 0 Oil-Free Air Compressors Built for long-lasting performance, PUFCO’s portable air compressors bring Class 0 oil-free air directly to where it’s needed most—including oilfields, refineries, and outdoor industrial environments. Engineered for both short-term and long-term use, these compact yet powerful units eliminate the hassle of stationary systems, providing on-site oil-free air that meets the strictest purity standards. Ideal for mobile industrial tasks, PUFCO’s portable oil-free compressors balance portability with uncompromised performance.

Original Germany GHH air end
- Double stage compression
- Superior Sweden SKF element bearings
- A high-power engine model is selected, with adjustable displacement ranging from 65% to 100%, providing substantial torque at low speeds for easy starting.

The use of Cummins diesel engines substantially extends machine life and reduces fuel

The main electronic components are adopted Siemens and other brands, which greatly improves the service life: specialized wiring interfaces, LUO large story blog diagnostic and protection functions, so that the air compressor runs more reliably and saves electricity. 

Microcomputer intelligent monitoring air compressor exhaust pressure, exhaust temperature, diesel engine speed, oil pressure, water temperature, mailbox level and other operating parameters, with automatic alarm and shutdown protection function.

Anti-freeze, anti-rust and anti-boiling coolant can not only prevent the water jacket and water tank of the cylinder block and head from freezing due to freezing in winter, but also can prevent rust and remove scale.

Use a cooling fan with large air volume and high air pressure to draw cold air (ambient temperature) into the unit from the four louvered door panels at the front of the machine.