Description
The Rotating Bayonet J-Type Thermocouple is a spring-loaded temperature sensor designed for accurate and reliable temperature measurement in plastic extrusion, injection molding, industrial heaters, packaging machinery, and OEM process equipment. Its rotating bayonet holder allows the cable to be positioned in the desired direction after the bayonet cap is locked into place, making installation easier in confined spaces and helping reduce cable twisting and mechanical stress during operation.
Manufactured with a J-Type (Iron-Constantan) thermocouple element, a durable SS316 stainless steel sheath, and a welded spring-loaded construction, this thermocouple provides dependable temperature sensing in applications operating from 0°C to +400°C, with customized versions available for temperatures up to 600°C. The spring-loaded probe maintains consistent contact with the measuring surface, improving measurement stability even in equipment exposed to vibration or thermal expansion.
The rotating holder design is particularly suitable for plastic extrusion barrels, injection molding machines, nozzle heaters, hot runner systems, heating elements, and industrial processing equipment, where flexible cable orientation simplifies installation and maintenance. It is available in simplex or duplex configurations and can be customized with different probe lengths, spring lengths, bayonet cap sizes, cable lengths, insulation materials, and thermocouple types to meet specific application requirements.
Key Features
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360° Free-Rotating Bayonet Cap ($15.5text{mm}$ OD, 2-Pin) Allows the cable to rotate freely and exit at any orientation after locking onto the mounting stud, preventing internal wire twisting.
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Spring-Loaded Constant Thermal Contact High-tensile $6text{mm}$ OD spring exerts continuous pressure on the $30text{mm}$ tip, ensuring complete metal-to-metal contact inside adapter wells despite equipment vibration.
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Rugged SS316 Welded Sensing Tip ($5text{mm}times 30text{mm}$) Precision-machined, corrosion-resistant stainless steel probe housing withstands physical impact, thermal shock, and polymer melt residue.
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High-Sensitivity Type J Thermocouple Calibration Iron / Constantan (Fe/Cu-Ni) calibration delivers fast response times and precise thermal tracking across 0°C to 400°C (up to 600°C optional).
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Armored 3-Meter Stainless Steel Braided Cable Flexible internal wire insulation protected by an outer stainless steel wire mesh resists chafing, sharp metal edges, and high machinery temperatures.
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Versatile Element Configurations Available in standard simplex (single loop) or duplex (dual loop) circuits, as well as RTD (Pt100) configurations upon request.
Applications
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Plastics Extrusion & Injection Molding Machines Precise temperature monitoring along extruder barrels, nozzle tips, and mold platens.
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Hot Runner Systems & Die Assemblies Compact thermal control in multi-cavity plastic molds and manifold heating blocks.
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Industrial Blow Molding Equipment Continuous barrel heating zone control for bottle and container production machinery.
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Packaging Machinery & Heat-Sealing Jaws In-line temperature sensing for hot melt glue units, packaging sealers, and shrink tunnels.
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OEM Machinery & Retrofit Upgrades Ideal drop-in replacement sensor for standardized European and Asian plastic processing equipment.
Datasheet
FAQs
1. What is a Rotating Bayonet J-Type Thermocouple?
A Rotating Bayonet J-Type Thermocouple is a spring-loaded J-Type temperature sensor featuring a rotating bayonet holder that allows the cable to be positioned in the desired direction after installation. It provides accurate temperature measurement while simplifying installation in industrial machinery and molding applications.
2. Why is a Rotating Holder used in a Bayonet Thermocouple?
The rotating bayonet holder allows flexible cable orientation, making installation easier and reducing cable stress, twisting, and bending in confined spaces or around machine components. This improves cable life and installation convenience.
3. What is the advantage of a Bayonet Mounting?
Bayonet mounting provides secure sensor positioning, quick installation, and easy replacement while maintaining consistent contact with the measurement point. It is widely used in applications requiring reliable, repeatable, and efficient temperature monitoring.
