K1813-1 - Lincoln Cool Arc 40 115V Welding Water Cooler

Reliable Cooling for High-Performance Welding

The Lincoln Electric Cool Arc 40 Water Cooler (K1813-1) is engineered to provide consistent, reliable cooling for water-cooled MIG, TIG, and plasma cutting applications. Designed for industrial environments where equipment uptime is critical, this unit integrates a rugged Pro-Con internal water pump. Known as the industry standard for welding water coolers, the Pro-Con pump ensures a steady flow and pressure, which is essential for maintaining the thermal stability of your welding torches and extending consumable life. The pump's widespread adoption in the industry also means that service and maintenance are straightforward, ensuring your operations remain productive with minimal downtime.

One of the standout engineering features of the Cool Arc 40 is its vibration management. The unit utilizes a powerful "muffin-style" tube axial fan that not only provides efficient heat dissipation but does so with exceptionally low noise and smooth operation. By minimizing the vibration generated by the cooler, the system prevents unnecessary mechanical noise from transferring to the welding torch, thereby aiding in operator comfort and arc stability during precision welding tasks.

Durability and longevity are addressed through the use of a 2-gallon (7.6 L) plastic reservoir. Unlike metal tanks that can degrade over time, this non-corrosive reservoir eliminates the possibility of rust contaminating the coolant lines or the pump itself. Despite its robust capacity, the reservoir design keeps the unit lightweight; the Cool Arc 40 weighs only 60 lbs when fully loaded. This makes it manageable to move or reposition within a workshop environment. Furthermore, the unit is designed for versatility in installation. It can be mounted and operated either horizontally or vertically, allowing fabricators to optimize their floor space or integrate the cooler into custom welding carts with a minimal footprint.

Compatibility is a key advantage of the K1813-1 model. It is designed to work seamlessly with all Lincoln Electric water-cooled systems, including the complex Cobramatic water-cooled push-pull torches. The coolant connections are standard female CGA-style (5/8-18 left-hand thread) and are color-coded for error-free setup. For standard indoor shop environments, no special coolant is required—tap water is sufficient. However, for environments subject to freezing temperatures, the system is fully compatible with a mixture of pure ethylene glycol and water.