Images are representations only.
The melt-bolt thermocouples are used on extruders and injection molding machines to directly measure the melt temperature of plastic as it moves down the extruder barrel. These melt-bolts are made with 300 series stainless steel and are constructed using a metal-sheathed MgO element. The fixed tip style consists of an MgO element brazed to the bolt at a specified tip length and is supplied with a grounded junction as standard.
Pyromation's Precision Tip Re-adjustable MeltBolt Thermocouples come standard with a fast response exposed junction. The precision tip is manufactured from hardened stainless steel and creates a positive shut off to prevent the back flow of plastic into the bolt.
MgO and Adjustable Tip Melt-Bolt Thermocouples
MgO Extension "B"
Fiberglass Melt-Bolt Thermocouple
Nozzle-Melt Thermocouple and RTD
Melt Bolt Thermocouple - TC47-MB
WIKA Instruments Ltd.
MgO Insulated Thermocouples with Sheath Termination
General-Purpose Tube and Wire Thermocouple
Penetration Style Thermocouple Sensor