HDI™ Air Pak™
Stop wasting payload on separate compressor and engine-driven welder units. Simplify your job and fleet with the all-in-one Miller® HDI™ Air Pak™ series. Maximize payload, save space and get more done with a single hydraulically driven unit.
It's Time to Raise Your Standard
Stop wasting payload with a standalone compressor and engine-driven welder — simplify your job and fleet with the hydraulically driven all-in-one Miller® HDI™ Air Pak™ series. Maximize payload, save space and get more done in a single unit.

Simplify Your Fleet With the HDI™ Air Pak™ Series


Make Way for More Room on Your Truck
Powerful Capabilities
Compressed Air
Battery Charge / Crank Assist
Auxiliary Power
Integrated Multiprocess Welding
Key Benefits
The Only Hydraulically Driven Power System You and Your Technicians Need
The HDI™ Air Pak™ all-in-one solutions do the work of two machines and are designed with industry-leading technologies to provide the reliability and support you need on the job, while reducing payload for increased capabilities.
