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The latest addition to the Lincoln Water Cooler range, the COOLARC 60 is designed specifically for the new Speedtec SP line of MIG welders. The COOLARC 60 boasts LED lights from within the reservoir to highlight the coolant level and give the operator better visibility. An inlet is installed on the front for easy fill-up and a flow sensor is implemented for gun protection. Now with 3 modes of operations and being fully controllable from the power source, the COOLARC 60 is the most advanced Lincoln Water Cooler yet.
Specifications
Practical answers on choosing, connecting and looking after water coolers designed to work with one maker's welding equipment.
Not always. Some coolers are designed to work with particular power sources: they are supplied or switched through a control socket and cable, and the welder reads the flow sensor. Maker manuals for this type of cooler say it must be used with a power source that lists it as an approved accessory.A cooler with its own mains lead and plain hose connections may suit other equipment, but it may not give the welder the flow signal that stops the arc on a fault. Check the welder's manual for the coolers it lists, and the cooler's data plate for voltage and connections, before connecting anything.
Use only the coolant the manual for that particular cooler specifies, because makers differ. Some specify their own ready-mixed glycol coolant; others allow clean tap or distilled water where there is no risk of frost, with a water and pure ethylene glycol mixture below freezing. Several makers specifically warn against automotive antifreeze and against pre-packaged welding coolants, which can damage the pump and block the heat exchanger.Do not mix types or brands, and do not top up with something just because it looks similar. If you do not know what is in the tank, drain it and refill as the manual says.
Check the coolant level before use, as makers advise a daily check, and keep it topped up, especially after disconnecting the hoses or changing the torch. Look over the hoses, couplings and torch for damage, kinks or leaks, check the cables and connections, and keep the fan and air slots clear of dust.Periodically, with the unit switched off and isolated, clean dust from the cooling element and case, and flush or change the coolant if growth appears. Intervals vary by maker and workshop. Hot coolant can burn, so let it cool before servicing.
Many coolers have a flow sensor that stops the welding output when coolant flow is low or absent, to protect the torch. Some have a switch to turn it off, intended for short-term use such as priming a new system with coolant. With the sensor off, a missing flow is not detected, so a torch can overheat and be damaged quickly.Switch it back on before welding. If it keeps tripping, look for the cause instead of bypassing it: low level, a kinked hose, a blocked or leaking torch line, or a torch rated too low for the current.
