Hot runner full product matrix is divided into core thermal control sensors (thermocouple series), heating execution components and complete hot runner system assemblies, with thermocouples classified by structure, alloy type and application position as standardized spare parts matching all mainstream systems. Thermocouple product categories cover five core series: manifold patch thermocouples, nozzle inserted MI thermocouples, spring loaded surface sensors, dual-point high-precision thermocouples and miniature micro thermocouples for micro molds. Manifold patch thermocouples adopt flat welded J/K-type contacts with 1–3m braided shielding wires, designed for mounting on hot manifold outer surfaces, available in SS316 and Inconel sheath materials for low and high-temperature environments separately. Nozzle MI thermocouples feature slim 0.8–2mm mineral insulated metal tubes, inserted into pre-machined holes of hot nozzle bodies, supporting single and dual loop sensing for long needle valve nozzles prone to uneven heat distribution.
Spring loaded thermocouples integrate stainless steel compression springs behind sensing tips, maintaining zero-gap contact with moving nozzle assemblies under thermal expansion and mold vibration, widely used in frequent cycle automotive multi-cavity molds. Dual-point thermocouple products embed two independent thermoelectric circuits within one sheath, outputting two real-time temperature signals simultaneously to temperature controllers, standard configuration for medical transparent parts requiring ultra-uniform melt temperature control. Micro thermocouples with 0.5mm ultra-thin sheaths target micro injection molds for electronic connectors and insulin pen components, compatible with EWIKON, GÜNTHER miniature nozzle series for sub-0.1g tiny molded parts. By alloy type, all thermocouples offer interchangeable Type J and Type K options; customized Type N high-temperature sensors are supplied for super engineering plastic molding exceeding 450℃.
Supporting hot runner heating products matched with thermocouples include coil spring heaters, tubular manifold heaters and cartridge nozzle heaters, each pre-installed with embedded thermocouple wiring ports for plug-and-play assembly. Complete hot runner systems split into open gate and valve gate assemblies, both pre-equipped factory-calibrated matched thermocouples before delivery. Open gate systems apply patch J-type thermocouples for low-cost packaging mass production; valve gate systems adopt dual-point K-type MI thermocouples for high-precision automotive and medical molding. Auxiliary thermal control products include multi-zone temperature controllers, extension thermocouple cables, wiring junction boxes and replacement sensor repair kits. Spare part thermocouple kits pack commonly used 1m/2m wire length J/K sensors, sheath replacement tubes and spring preloading accessories to simplify on-site maintenance.
Customized thermocouple products serve special industrial demands: corrosion-resistant PTFE coated thermocouples for PVC and flame-retardant plastic molding releasing acidic volatiles; high-vibration reinforced wire thermocouples for large vertical injection molding machines; food-grade polished sheath thermocouples for disposable food packaging molds complying with FDA standards. Domestic and international brand product differentiation lies in thermocouple modularization: multinational brands sell thermocouples as exclusive proprietary spare parts with non-universal wiring terminals, while Chinese manufacturers adopt unified industry standard terminals compatible with all global hot runner brands, lowering client spare part procurement costs. Standardized thermocouple serial production reduces delivery cycles from 15 working days to 3–5 days, supporting mold manufacturers' rapid prototype and mass production project schedules.
