L Spring rotate thermocouple sensor

L Spring Rotate Thermocouple Sensor is a temperature sensor designed for plastic processing machinery where accurate and stable temperature measurement is required.

It is commonly used in injection moulding machines, extruders, blow moulding machines, hot runner systems, nozzles, barrels and industrial heating zones. The sensor is made with a spring-loaded probe that can be positioned properly inside the machine to measure temperature at the required location.

The rotating design makes installation and adjustment easier. The spring-loaded construction helps the sensor maintain proper contact with the measuring surface, even when the machine is running, vibrating or moving.

This sensor is available in different types such as K, J, E and RTD. It can be supplied with different tip diameters, tip lengths, wire lengths and grounded or ungrounded junction options as per application requirement.

B. Working Principle

The L Spring Rotate Thermocouple Sensor works on the thermoelectric effect.

A thermocouple is made from two different metal wires joined at one sensing point. When this sensing point is exposed to heat, a small voltage is generated. This voltage changes according to temperature.

The thermocouple signal is sent to a temperature controller, indicator, PID controller or control panel. The controller then displays the temperature and controls the heater output according to the set value.

In plastic machinery, the sensing tip is placed near the barrel, nozzle, die, hot runner or heating zone. The spring mechanism keeps the probe in proper contact with the measuring surface. The rotating holder allows flexible positioning of the sensor during installation.

This helps the machine maintain stable temperature during plastic melting, moulding and extrusion processes.

C. Why It Is Used

L Spring Rotate Thermocouple Sensor is used because plastic machinery requires accurate temperature monitoring at different heating zones.

If the temperature is too low, plastic material may not melt properly. If the temperature is too high, the material can burn, degrade or cause poor product quality. A proper thermocouple sensor helps maintain the correct temperature and improves process stability.

It is used for:

Accurate temperature measurement in plastic machinery
Stable barrel and nozzle temperature control
Better contact with machine surface
Reduced error due to machine vibration
Flexible sensor positioning with rotating holder
Improved plastic melting and processing quality
Consistent product output
Reduced material wastage
Reliable performance in high-temperature applications

The spring-loaded and rotating design makes this sensor suitable for dynamic industrial environments where normal fixed sensors may not maintain proper contact.

D. Suitable Buyers

This product is suitable for customers working with plastic processing machines and industrial heating applications.

Suitable buyers include:

Plastic injection moulding machine users
Plastic extrusion machine users
Blow moulding machine users
Plastic processing plants
Hot runner system users
PVC pipe manufacturers
Cable and wire extrusion plants
Packaging material manufacturers
Industrial heater manufacturers
Machine maintenance teams
OEM machine builders
Control panel manufacturers
Temperature controller users
Industrial automation suppliers
Thermocouple dealers and traders
Maintenance engineers and plant engineers

This sensor is also suitable for buyers who need customized thermocouples based on tip size, wire length, sensor type, junction type and machine mounting requirement.

Product Specifications

Type: K, J, E and RTD
Temperature Range: 35 to 600°C
Tip Diameter: 5 mm or 6 mm
Tip Length: 100 mm, 150 mm and 200 mm
Slot Size: 12.5 mm and 14.5 mm ID with single or double slot
Wire Length: 0.5 meter to 10 meter
Junction: Grounded and Ungrounded

FAQ

1. What is an L Spring Rotate Thermocouple Sensor?

An L Spring Rotate Thermocouple Sensor is a temperature sensor used in plastic machinery for measuring barrel, nozzle, die and heating zone temperature. It has a spring-loaded and rotating design for better contact and flexible installation.

2. Where is this thermocouple used?

It is used in injection moulding machines, extruder machines, blow moulding machines, hot runner systems, plastic processing machines, industrial heaters and other high-temperature machinery.

3. Why is it called spring rotate thermocouple?

It is called spring rotate thermocouple because it has a spring-loaded design for proper contact and a rotating holder design for easy positioning during installation.

4. What is the benefit of the spring-loaded design?

The spring-loaded design helps the sensor maintain firm contact with the measuring surface. This reduces temperature reading errors caused by vibration, movement or loose fitting.

5. What is the benefit of the rotating holder?

The rotating holder allows flexible positioning of the thermocouple during installation. It helps adjust the sensor direction according to the machine mounting requirement.

6. Which thermocouple types are available?

This sensor is available in K type, J type, E type and RTD options. The selection depends on temperature range, accuracy requirement and controller compatibility.

7. What is the temperature range of this sensor?

The temperature range is 35 to 600°C, making it suitable for plastic machinery, extrusion machines and industrial heating applications.

8. What wire length is available?

The wire length is available from 0.5 meter to 10 meter. The correct wire length can be selected based on the distance between the sensor and the control panel.

9. What is grounded and ungrounded junction?

In a grounded junction, the sensing element is connected to the probe sheath, which gives faster response. In an ungrounded junction, the sensing element is insulated from the sheath, which gives better electrical isolation and reduces signal interference.

10. Is this sensor suitable for injection moulding machines?

Yes, this sensor is suitable for injection moulding machines. It can be used for barrel temperature, nozzle temperature and heating zone temperature measurement.

11. Is this sensor suitable for extruder machines?

Yes, it is suitable for extruder machines. It helps monitor and control barrel temperature during plastic melting and extrusion.

12. Can this thermocouple be customized?

Yes, this thermocouple can be customized based on sensor type, tip diameter, tip length, wire length, slot size, junction type and application requirement.