Description
The Aavad J-Type Bayonet Thermocouple (Model AJES-6×65) is designed for reliable temperature measurement on plastic injection molding machines, extrusion equipment, and other industrial machinery that uses a bayonet-style sensor mount. It features a 2-pin locking bayonet cap with a 15.5 mm outside diameter, providing secure installation on equipment designed for this mounting standard.
The sensor incorporates a J-Type (Iron-Constantan) thermocouple element in a simplex configuration, offering dependable temperature measurement from 0°C to 400°C. Its 6 mm OD SS316 stainless steel sheath and 65 mm sensing tip provide good mechanical strength and corrosion resistance for demanding industrial environments.
The stainless steel braided cable protects the sensor from abrasion, vibration, and mechanical wear, making it well suited to continuous operation around molding machines and extrusion equipment. The bayonet mounting system allows the sensing tip to remain firmly positioned against the heated surface or barrel, helping maintain stable temperature monitoring during machine operation.
This thermocouple is widely used as an OEM replacement sensor for compatible plastic processing equipment, particularly machines that use the 15.5 mm two-pin locking bayonet style. While this mounting style is often associated with imported equipment from various manufacturers, the critical selection criterion is matching the bayonet dimensions and locking mechanism, rather than the machine’s country of origin.
Key Features
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Standardized 15.5mm Chinese Bayonet Cap 2-pin twist-lock mechanism provides direct-fit compatibility with Chinese-manufactured plastics machinery.
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J-Type (Iron/Constantan) Thermocouple Element Calibrated specifically for plastics processing equipment requiring J-Type input signals.
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Spring-Loaded Tip Pressure Holds continuous tip contact against the machine barrel to eliminate insulating air gaps and reduce measurement lag.
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Heavy-Duty SS316 Stainless Steel Sheath Rigid 6mm OD probe withstands high melt pressures and harsh physical wear around nozzle zones.
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3-Meter Stainless Steel Braided Lead Wire Flexible armored outer braid protects inner conductors against mechanical abrasion, pinching, and hot polymer splatters.
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Broad Thermal Range (0°C to 400°C) Engineered for continuous polymer processing, runner temperature control, and die heating.
Applications
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Chinese Injection Molding Machines Direct replacement sensor for imported plastic molding equipment and hot runner systems.
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Plastic Extrusion Lines Barrel zone and die head temperature tracking on single and twin-screw extruders.
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Blow Molding & Thermoforming Machinery Precise mold and nozzle temperature control for hollow plastic containers.
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Hot Runner & Manifold Systems Compact temperature sensing in dense multi-cavity plastic tooling setups.
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Plastics Machinery Retrofits Direct OEM replacement for maintenance and replacement inventory in processing plants.
Datasheet
FAQs
1. What is a J-Type Bayonet Thermocouple?
A J-Type Bayonet Thermocouple is a temperature sensor featuring a spring-loaded bayonet mounting system that provides secure and consistent contact with the measurement surface. It is widely used on plastic injection molding machines, extrusion equipment, packaging machinery, and industrial heating systems for accurate process temperature monitoring.
2. What is a Bayonet Thermocouple used for?
Bayonet thermocouples are commonly used to measure the temperature of barrels, nozzles, dies, molds, heated plates, and process equipment in plastic processing, packaging, rubber manufacturing, textile machinery, and other industrial heating applications where fast response and reliable sensor positioning are required.
3. What does the 2-Pin Locking Bayonet Connection do?
The 2-pin locking bayonet connection securely holds the thermocouple in position while the spring mechanism maintains constant pressure against the measurement point. This ensures consistent thermal contact, improves measurement accuracy, reduces vibration-related movement, and allows quick installation and sensor replacement during maintenance.
4. Why is a J-Type Thermocouple used in Plastic Processing Equipment?
J-Type thermocouples are widely specified for plastic injection molding and extrusion machinery because they provide reliable, repeatable, and cost-effective temperature measurement within the typical operating range of these processes. They offer fast response and stable performance, making them suitable for controlling barrel, nozzle, and die temperatures.
5. What is the Operating Temperature Range of a J-Type Bayonet Thermocouple?
A typical J-Type Bayonet Thermocouple operates over a temperature range of approximately 0°C to +600°C, making it suitable for plastic processing, packaging machinery, industrial heaters, and many general-purpose industrial temperature measurement applications.
6. Which industries commonly use J-Type Bayonet Thermocouples?
These thermocouples are widely used in plastic injection molding, extrusion plants, packaging machinery, rubber processing, textile manufacturing, food processing equipment, OEM machinery, industrial heaters, and automation systems where compact, spring-loaded temperature sensing is required.
7. Why Choose Aavad Instrument J-Type Bayonet Thermocouples?
Aavad Instrument Pvt. Ltd. J-Type Bayonet Thermocouples are precision-engineered for accurate and dependable temperature measurement in plastic processing and industrial heating applications. Manufactured with high-quality J-Type sensing elements, durable SS316 protective sheaths, robust 2-pin locking bayonet assemblies, and heat-resistant cables, our thermocouples provide excellent accuracy, fast response, and long service life. We also offer customized sheath diameters, insertion lengths, spring lengths, cable lengths, bayonet cap sizes, and termination options to suit OEM and industrial process requirements.
