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K type M6 M8 screw thermocouple for 0-600℃

K-type screw thermocouples are contact sensors that attach a nickel-chromium/nickel-silicon measuring junction to the top or side of a metal screw. Using the threaded structure (such as M6, M8), they are screwed into pre-drilled holes in the object to be measured. Through high contact pressure, thermal resistance is significantly reduced, achieving high-precision and fast-response measurements of solid surface temperatures. They are easy and secure to install, vibration-resistant, and do not fall off, requiring no adhesive or welding. They are widely used in injection molds, hot presses, rollers, engine housings, and battery modules, making them an ideal choice for monitoring metal surface temperatures in industrial settings. They are usually made of stainless steel or Inconel to suit different temperature ranges.

    Working Principle

    The K-type screw thermocouple is a compact, threaded-mount K-type thermocouple designed for measuring the temperature of object surfaces, small equipment chambers, or scenarios requiring fixed installation. Its core operates based on the Seebeck effect and is a commonly used compact temperature sensor in industrial sites and equipment temperature measurement.

    Product Features

    1. Easy and Secure Installation
    The threaded connection requires no additional fasteners and can be directly installed on equipment housings, molds, heating plates, and other parts. It is not prone to falling off and is suitable for vibrating environments.
    2. Accurate and Reliable Temperature Measurement
    The sensing end is in direct contact with the measured object, minimizing heat transfer loss, and providing superior accuracy and stability compared to non-contact temperature measurement.
    3. Strong Adaptability
    Its compact design allows temperature measurement in narrow spaces, and the thread specifications can be customized to meet the installation requirements of different equipment.
    4. Cost-Effective
    With a simple structure and low production cost, it is suitable for mass deployment and is easy to maintain and replace.

     application  scenarios

    1. Temperature measurement of injection molding machines, extruder heating rings, barrels, and flanges
    2. Surface temperature measurement of molds, hot press machines, heating plates, and edge banding machines
    3. High-temperature monitoring of motors, bearing housings, valve bodies, and cylinders
    4. Industrial ovens, conveyor line heating equipment, and automated temperature control systems
    5. Woodworking machinery, packaging machinery, and rubber & plastic equipment

    Product detail

    K-type M6 M8 screw thermocouple for 0-600℃- (1)K-type M6 M8 screw thermocouple for 0-600℃- (2)

    Technical Specifications

    Product Name

    Screw thermocouples

    Degree number

    K

    Probe diameter

    M6*1 / M8*1.25

    Installation method

    Screw thread

    Probe material

    Metal

    Measuring range

    K:0-600℃

    E:0-400℃

    Cable material and length

    Metal shielding wire /cotton covered

    Wiring Definition

    This is a paragraph

    1. Black, White - Power
    2. Green - Ground
    3. Yellow - Common (COM), Blue - Normally Closed (NC), Red - Normally Open (NO)

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