Core Value
The Right Angle Bayonet Thermocouple Temperature Sensor is an essential surface and blind-hole thermal measurement solution designed for low-clearance machinery, plastic extrusion barrels, blow molding dies, and packaging sealing equipment. Featuring a rigid 90-degree elbow bend at the probe transition, this sensor routes lead wires parallel to the equipment surface, protecting cables from tight machine guards, physical crushing, and sharp bending stress.
Engineered with a heavy-duty spring-loaded bayonet fitting, the probe compresses firmly against the bottom of blind drilled holes when locked into a standard bayonet adapter. This constant spring pressure eliminates air insulation gaps, guaranteeing direct tip-to-metal thermal contact, rapid heat conduction, and continuous PID signal stability even under high-frequency barrel vibration. Calibrated in industry-standard Type J (ideal for plastics) and Type K, these sensors feature a stainless steel braided lead wire built to withstand abrasive factory environments. BACKED BY EXTENSIVE SENSOR MANUFACTURING EXPERIENCE and engineered for seamless OEM machinery integration, every unit UNDERGOES MULTIPLE RIGOROUS QUALITY CHECKS to ensure flawless spring tension, exact thread/bayonet dimensions, and zero signal intermittence.
- ✓ 90° Low-Profile Elbow Design: Directs lead wires parallel to mounting surfaces, saving spatial clearance in tight machine enclosures.
- ✓ Spring-Loaded Constant Pressure: Adjustable bayonet spring forces the probe tip firmly against the hole bottom, eliminating dead-air insulation space.
- ✓ Adjustable Insertion Depth: Twist-lock bayonet cap slides along the spring body, allowing easy custom depth adjustment across different mold plates.
- ✓ Rapid Thermal Response: Precision-ground probe tip with a grounded thermocouple junction provides instant temperature tracking.
- ✓ Heavy-Duty SS Overbraid: Stainless steel braided armor protects internal conductors from oil, abrasion, and mechanical snagging.
- ✓ Type J & Type K Availability: Type J iron-constantan standard for plastic processing; Type K for high-temperature extrusion and heat treating.
- ✓ Reliable Quality: Built to withstand constant thermal cycling and heavy machinery vibration without signal drift.
- ✓ Quality Assured: UNDERGOES MULTIPLE RIGOROUS QUALITY CHECKS including millivolt output verification, bayonet cap locking tests, and insulation resistance checks.
Technical Specifications & Performance Data
| Parameter | Standard Value | Customizable Range | Notes |
| Sensor Calibration | Type J / Type K | Type T, E, or RTD (PT100) | Type J is most widely used in plastic extrusion & molding |
| Temperature Range | 0°C to 400°C (32°F to 752°F) | Up to 600°C for special builds | Governed by wire insulation and junction type |
| Probe Tip Diameter (Ø) | Ø 4.7 mm / Ø 6.0 mm | Ø 3.0 mm to Ø 8.0 mm | Matches standard drilled thermometer holes |
| Probe Tip Length | 10 mm / 15 mm / 20 mm | Custom tip lengths available | Solid 304 SS tip housing |
| Elbow Angle | 90° Right Angle | Custom 45° or 135° bends | Rigid stainless steel transition elbow |
| Bayonet Cap ID | 11.0 mm / 12.3 mm / 15.0 mm | Single pin or Double pin slots | Fits standard M10, M12, and 1/8″ NPT bayonet adapters |
| Spring Length | 150 mm / 200 mm | 100 mm to 500 mm adjustable | Provides spring tension and wire bend relief |
| Lead Wire Material | Fiberglass + Stainless Steel Braid | Teflon (PTFE), Armor Conduit | SS braid offers superior flexibility and abrasion resistance |
| Lead Wire Length | 1000 mm / 2000 mm | Custom lengths up to 10 m | Bare leads, spade lugs, or standard mini plugs |
| Junction Type | Grounded (Fast Response) | Ungrounded (Isolated) | Grounded junction delivers maximum thermal speed |
Industrial Applications & Solutions
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Plastic Extrusion Barrels: Installed into adapter blocks and barrel zones to maintain precise polymer melt temperatures.
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Injection Molding Machines: Threaded into die plates and hot runner manifolds where overhead clearance is restricted.
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Packaging & Heat-Sealing Jaws: Low-profile cable routing prevents wire fatigue during continuous high-speed jaw actuation.
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Blow Molding & Tooling: Monitoring temperatures inside narrow mold pockets and blow pin assemblies.
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Rubber Vulcanizing Presses: Right-angle profile keeps wiring protected from hydraulic platen movement and hot oil splatter.
High-Performance Sensors vs Standard Market Options
| Feature | Our Right-Angle Bayonet Sensors | Standard Market Sensors | Your Advantage |
| Elbow Transition | Solid Reinforced SS Transition | Thin Bent Tube / Loose Shrink | Prevents wire shorting or snapping at the 90° bend during installation. |
| Bayonet Spring | Heavy-Gauge High-Temp Alloy | Soft / Low-Tension Spring | Maintains strong downward pressure over time without heat softening. |
| Cap Locking | Precision CNC Slotted Brass/SS | Rough Stamped Caps | Glides smoothly onto adapter pins and locks securely into place. |
| Junction Welding | Precision TIG Welded Tip | Hand-crimped / Rough Weld | Instant thermal conduction with zero millivolt output drift. |
| Quality Assurance | MULTIPLE RIGOROUS QUALITY CHECKS | Basic visual check only | ZERO DEFECT DELIVERY, ensuring immediate production reliability. |
Installation & Handling Guidelines
- Bayonet Adapter Setup: Screw a matching bayonet adapter bolt (e.g., M12 or 1/8″ NPT) into the drilled hole on your machine block.
- Depth Adjustment: Slide the slotted bayonet cap up or down the flexible spring to adjust the insertion depth. Ensure the spring compresses slightly (approx. 5mm to 10mm) when locked to create firm tip pressure against the hole bottom.
- Locking Mechanism: Push the bayonet cap onto the adapter pins, compress the spring, and twist 90 degrees until the cap pins lock securely into the slot recesses.
- Cable Alignment: Rotate the 90-degree right-angle elbow so that the flexible lead wire points toward your cable tray or wiring channel, avoiding sharp bends near moving machine parts.
- Polarity Wiring: Connect according to color standards: Type J standard ANSI is White (+) and Red (-), IEC standard is Black (+) and White (-). Always confirm controller input settings prior to startup.
Customer Success Stories
Case 1:
Plastic Film Extrusion Machinery OEM (Turkey)
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Application: Barrel temperature zone monitoring on multi-layer blown film extrusion lines.
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Challenge: Straight bayonet sensors were sticking out too far from the barrel insulation jackets, causing operators to bump into wires and break sensor connections.
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Solution: Type J Right Angle Bayonet Thermocouples with 90° SS elbows and heavy-duty SS braided lead cables.
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Results: ZERO ACCIDENTAL WIRE DAMAGE. “The 90-degree low profile keeps wires snug against the barrel insulation. Operators no longer snag cables, and temperature readings are perfectly stable.”
Case 2:
Automotive Injection Molding Plant (Mexico)
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Application: Temperature control on multi-cavity automotive bumper molds.
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Challenge: Inconsistent spring tension on cheap sensors created air gaps, causing temperature readings to lag by up to 8°C during fast cycle times.
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Solution: Precision Right Angle Bayonet Type K Sensors with high-tension alloy compression springs and CNC slotted caps.
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Results: CYCLE TIME & YIELD IMPROVED. “The strong spring pressure keeps the probe tip pinned to the mold steel. Thermal response is immediate, allowing us to tighten our PID loops and boost production speed.”
Pricing & Procurement Options
- Standard Production: Low MOQ available for standard 11mm/12.3mm bayonet cap sizes. Tiered volume discounts available for B2B machinery OEMs and mold manufacturers.
- Lead Times: Standard Catalog Items (Type J/K, 12.3mm cap, 2m wire): In stock, 3-5 days. Custom spring lengths, special tip diameters, or armored conduit leads: 7-10 days.
- Global Logistics: Coiled neatly and protected in shock-absorbing export packaging to ensure spring coils and right-angle elbows remain pristine during express air freight.
- Sample Orders: Available upon confirmation of bayonet adapter dimensions and tip diameter. Every sensor UNDERGOES MULTIPLE RIGOROUS QUALITY CHECKS prior to dispatch.
Global Certifications & Compliance
- CE Marking
Fully compliant with European safety and environmental standards. - LVD Compliance
Low Voltage Directive tested for continuous thermal load safety. - RoHS Compliant
Constructed using environmentally safe, lead-controlled brass alloys. - ISO 9001
Certified quality control covering CNC machining, coil pressing, and electrical testing.
Quality Documentation: Certificate of Conformity (COC) and insulation resistance test reports included.
Comprehensive After-Sales Support
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- Warranty: 1-Year Comprehensive Warranty covering internal heating element and built-in sensor.
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Technical Support: Application engineers available for wattage distribution calculation, thermocouple calibration, and nozzle fitting assistance.
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Global Response Network: BACKED BY 30+ YEARS MANUFACTURING EXPERIENCE with technical inquiry feedback within 2 hours.
Ready to Optimize Your Injection Molding?
Next Steps:
- 📧 Request Custom Quote – Send your nozzle dimensions, wattage, voltage, and HT-CLW-450 drawing requirements.
- 🔧 Free Design Consultation – Work with our thermal engineers to optimize heat distribution and lead insulation.
- 📦 Order Test Samples – Evaluate thermal performance on your injection molding machine.
- 📞 Contact Hot Runner Experts – Response within 2 hours
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