Highlights

Ideal For

• Heavy Equipment Repair: The 240-amp welder provides deep penetration for structural repairs on skidders, processors, and feller bunchers that lighter units can't touch.
• High-Demand Air Tools: With 19.7 CFM @ 175 PSI, this unit produces enough volume to run 1-inch impact wrenches for track maintenance or air-arc gouging for removing old welds.
• Long-Term Service Trucks: The pump runs at a remarkably low 808 RPM, reducing heat and vibration to significantly extend the machine's life compared to high-speed "screamer" pumps.
• Continuous Welding: Features a 100% duty cycle at 130 amps, allowing you to weld continuously on standard repairs without stopping to let the machine cool down.

'Need to Knows'

• Slow-Turning Iron: The compressor features a two-stage solid cast iron pump running at just 808 RPM. This slow speed reduces noise and wear, making it the most durable pump configuration available for service trucks.
• Maximum Welding Power: The DC arc welder puts out up to 240 Amps, giving you the heat needed to weld thick forestry guarding and heavy plating in the field.
• Massive Airflow: Delivering 19.7 CFM, this unit outperforms standard service truck compressors, ensuring you don't run out of air when breaking stubborn lug nuts on logging trailers.
• Reliable Power: Driven by the Honda GX390 engine, featuring an electric start (with recoil backup) and a 12V alternator to keep the onboard battery charged.
• Auxiliary Power: The generator provides 5,000 running watts (5,500 surge) through two 115V outlets and one 230V outlet, perfect for powering grinders, lights, or magnetic drills.

Warranty & Specs

• Tank Safety: Mounted on a 30-gallon horizontal ASME-certified tank with ASME safety valves, ensuring full compliance with jobsite safety regulations.
• Pump Life: The pump utilizes automotive-style insert bearings on the connecting rods and heavy-duty disc and spring valves for maximum efficiency and ease of service.
• Duty Cycle: Rated for 100% duty cycle at 130A and 35% at 240A, giving you professional welding capability in a portable package.
• Connectors: Welder is equipped with universal 50mm quick connectors, allowing for easy lead swaps and secure connections.
• Efficiency: The low-RPM design not only lasts longer but runs quieter and cooler, preventing the "heat fade" common in cheaper, high-RPM aluminum pumps.

Product Info

Castair 30 Gal. 3 in 1 Compressor Generator Welder

Maximum Airflow and Welding Power for Industrial Service Trucks

When you are repairing heavy forestry equipment on a remote landing, standard utility units often fall short. You need a machine that can gouge out old welds, run one-inch impact wrenches, and penetrate thick structural steel without overheating. The Castair 30 Gal. 3 in 1 Compressor Generator Welder is an industrial-grade workstation designed specifically for the service truck that needs to do it all, ensuring you have the power to fix skidders and processors anywhere.

The heart of this system is its massive two-stage cast iron pump. Unlike high-speed consumer units that scream and overheat, this pump runs at a low 808 RPM. This slow rotation significantly reduces heat build-up and wear, extending the life of the machine by years. It delivers a staggering 19.7 CFM, providing the volume needed to run heavy-duty pneumatic tools continuously.

Reliability in the woods is critical, which is why this unit is driven by the Honda GX390 engine. It features an electric start for easy operation in cold weather, along with a recoil backup. The 12-volt alternator keeps the battery charged, ensuring that the Castair 30 Gal. 3 in 1 Compressor Generator Welder is always ready to fire up when a breakdown halts production.

For serious metal fabrication in the field, the DC arc welder offers an impressive range up to 240 Amps. It boasts a 100% duty cycle at 130 Amps, meaning you can weld continuously on standard repairs without stopping to let the machine cool down. Whether you are hard-facing a bucket or repairing a cracked boom, this welder has the thermal mass to get the job done right.

The 30-gallon ASME-certified tank provides a safe and substantial air reserve for high-demand tasks. With a maximum pressure of 175 PSI, you have the force required to break rusted lug nuts on logging trailers or seat beads on large skidder tires. The heavy-duty belt guard and rugged frame protect the components from the vibration and debris typical of off-road transport.

To complete the package, the onboard generator delivers 5,000 running watts (5,500 surge) of clean power. Equipped with two 115V outlets and one 230V outlet, it easily powers angle grinders for weld prep, magnetic drills, or floodlights for night operations. This is not just a compressor; it is a complete mobile repair shop.

Why Choose The Castair 3 in 1 Compressor Generator Welder?

Low-RPM Pump

The solid cast iron pump runs at a remarkably low 808 RPM, reducing heat and vibration to extend the compressor's life far beyond standard high-speed units.

Massive Airflow

Delivers 19.7 CFM @ 175 PSI, providing the high-volume air power needed to run 1-inch impact wrenches for changing tires on logging trucks and skidders.

Structural Welding Power

Features a powerful DC arc welder with a range up to 240 Amps, allowing you to penetrate thick steel on heavy forestry attachments that lighter welders can't touch.

Continuous Duty Cycle

Rated for 100% duty cycle at 130 Amps, meaning you can weld continuously on standard repairs without stopping to let the machine cool down.

Honda Reliability

Powered by the commercial-grade Honda GX390 engine, known for starting reliably in cold weather and surviving the abuse of remote logging sites.

Space-Saving Design

Combines a generator, welder, and compressor into a single 30-gallon horizontal footprint, freeing up critical deck space on your service truck for fuel and rigging.

Industrial Components

Built with automotive-style insert bearings and heavy-duty disc valves, making this fully rebuildable pump a lifetime investment rather than a disposable tool.

Specifications

Castair 3 in 1 Compressor Generator Technical Specifications