Dynaflux R4000 Welding Water Cooler | 55,000 BTU | 25-Gal Stainless Tank | 1PH

The Dynaflux R4000 (often referred to as the R4000G) is an industrial-grade, high-capacity water recirculator designed to handle the thermal loads of the most demanding welding environments. Built with a 25-gallon stainless steel reservoir, this unit is engineered to eliminate the risks of electrolysis and mineral buildup that can plague lesser aluminum or plastic systems.

Whether you are cooling a high-amperage TIG setup, a heavy-duty MIG station, or a resistance welder, the R4000 provides the consistent, high-volume flow necessary to protect your equipment and extend the life of your torches.

Key Features

• Massive Cooling Capacity: Rated at 55,000 BTU/hr, providing enough thermal management for TIG/MIG systems up to 1,500 Amps or resistance welders up to 300 KVA.
• Stainless Steel Construction: The 25-gallon tank and vital internal components are stainless steel, ensuring a rust-free environment and superior coolant purity.
• Heavy-Duty Rotary Gear Pump: Features a rebuildable gear pump that delivers a consistent 10.0 GPM at 50 PSI, adjustable to meet specific torch requirements.
• Industrial Radiator: Equipped with a high-efficiency copper-core radiator and a high-CFM fan to ensure rapid heat dissipation even during 100% duty cycle operations.
• Visible Monitoring: Includes a clear liquid level sight glass and a front-mounted pressure gauge for "at-a-glance" system health checks.

Included in This Package

• Dynaflux R4000G Power Unit: (Please specify if 115/230V Single Phase or 460V Three Phase).
• Integrated Wheeled Chassis: Heavy-duty frame with casters for easy shop mobility.
• Pressure Gauge: Factory-installed for monitoring pump performance.

Technical Specifications

• Reservoir: 25 Gallons (Stainless Steel)
• BTU Rating: 55,000 BTU/hr
• Dimensions: 34" L x 21" W x 32" H
• Shipping Weight: ~180 lbs (Dry)
• Pump: 10.0 GPM @ 50 PSI
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Dealer Note

"The R4000 is the 'Big Block' of welding coolers. It is specifically designed for shops that cannot afford downtime caused by overheating. Because this unit uses a stainless steel tank, it is a one-time investment that will outlast multiple welding power sources. This unit has been pressure-tested and is ready to be plumbed into your production line."