TC-W100A Thermocouple Welder

The TC-W100A thermocouple welder is a specialized welder designed specifically for the challenging task of welding the delicate wires that are used in thermocouples. Built in the USA, the TC-W100A welds thermocouple wires together to form a uniform bead junction, consistent in size and quality, without detrimental oxide layers. The TC-W100A thermocouple welder will make thermocouples of all commercially available thermocouple alloys.

A thermocouple is a temperature sensor created by joining two dissimilar metals. The metals are typically fine gauge wires which are welded at a point, typically in the shape of a rounded bead.  Thermocouple welding can be challenging with standard resistance or micro TIG welding equipment due to the thermal characteristics of the alloys and the size of the wire, which is usually 20 AWG or less.

The shape of the finished, welded bead at the junction of the thermocouple wire can also have an impact its ability to accurately measure temperature.  An oversized or malformed bead, for example, could negatively impact the sensor’s response time.