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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

Simplify Your Fleet With the HDI™ Air Pak™ Series

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Make Way for More Room on Your Truck

Drag the slider to see how the HDI Air Pak maximizes payload and saves space on your truck.

Powerful Capabilities

Compressed Air

Rotary-screw compressor with 40 cfm (265 model) or 60 cfm (325 model) provides air on demand.

Battery Charge / Crank Assist

Up to 150 amps of DC power for 12/24V battery charging. Up to 300 amps for crank assist.

Auxiliary Power

7,000-watt generator can handle most jobsite electrical needs to power electric tools, lights and more.

Integrated Multiprocess Welding

Provides 265 amps (265 model) or 325 amps (325 model) of output.

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.

Smaller and Lighter

Up to 400 pounds lighter and 54 percent smaller footprint over an engine-driven welder and standalone compressor.

Industry-Leading Weld Quality

Best-in-class welding performance, reliability and support.

Auto-Set™ Technology

Predefined weld settings make welding straightforward and accurate for technicians.

Simple Setup

Save time with a single, easy-to-use interface for air compressor, battery charge/crank assist and weld parameter settings.

Modular Remote Panels

Individual panels allow for customized setup for quick, easy access and reduced risk of injuries from climbing onto the truck.

Quieter Operation

Reduced sound levels lessen noise fatigue on the jobsite.