Melt Pressure Transducers

Melt Pressure Transducers

Melt pressure transducer is mainly used for pressure measurement and control of molten materials under high temperature conditions. Melt pressure sensors are widely used in high-temperature fluid media such as chemical fiber plastics, spinning, polyester, plastics, rubber, extrusion equipment, etc.

Our Sino-Inst Melt pressure transducers support customization. Including pressure range: 0 ~ 300MPa, probe temperature resistance 400 ℃. 0-5V, 0-10V, 4-20mA and other signal outputs are optional. There is even an optional anti-corrosion and wear-resistant coating, which is suitable for pressure measurement of high-concentration rough media and can increase the service life by 3 to 5 times.

Features of Melt Pressure Transducers

  • Internal 80% calibration signal, maximum temperature resistance 400℃;
  • 17-4PH diaphragm material, long service life;
  • Equipped with anti-interference circuit, the signal output is stable;
  • Excellent stability and repeatability;
  • Mainly used in pressure measurement in plastics, rubber and other extrusion industries;
  • Can be customized to increase temperature and measure simultaneously;

working principle

The working principle of the melt pressure sensor is that the pressure of the medium acts directly on the diaphragm of the sensor, causing the diaphragm to produce a micro-displacement that is proportional to the pressure of the medium, causing the resistance of the sensor to change. This change is then detected using electronic circuits. And convert and output a standard signal corresponding to this pressure.

Melt Pressure Transducers Technical Parameters

Pressure range0~25MPa~80~300MPa
Comprehensive accuracy±0.5%FS, ±1.0%FS (including linearity, repeatability and hysteresis)
Supply voltage24(12~36)VDC
Insulation resistance200MΩ@100VDC
Diaphragm material15-5PH coated stainless steel; 17-4PH coated stainless steel
Electrical connectionsFive-core and six-core aviation connectors, or customized.
temperature drift≤0.2MPa/100℃
overload pressure150%FS
output signal4-20mA, 0-10V, 0-5V
Internal self-calibration80%FS±1%
Diaphragm temperature resistantCan withstand 400℃
Temperature modelJ, K, E, PT100 (optional customization)
process connection1/2”-20UNF, M14 x 1.5, M18 x 1.5, M22 x 1.5, G3/4

Different types of Melt Pressure Transducers


High-temperature melt pressure sensors are used in high-temperature equipment such as chemical fiber spinning, polyester, rubber and plastic machinery, etc.
Pressure measurement and control of warm fluid media.

● Melt blown fabric, non-woven fabric, chemical fiber drawing equipment
● Plastic and rubber manufacturing equipment
● Medicine, food processing, packaging and other equipment
● Pressure monitoring of other high temperature fluids

extrusion pressure transducer for rubber and plastic extrusion machinery

In plastic and rubber extrusion production lines, melt pressure sensors play an important role in improving melt quality, improving production safety and protecting production equipment. At the same time, the melt pressure sensor is a very sensitive component. Only proper installation and maintenance can its role be fully utilized.

High temperature melt pressure sensor applications

During the extrusion production process, some quality standards of the product (such as dimensional accuracy or surface flatness of holiday mineral filler parts, etc.) require optimal control of the extrusion pressure. Melt pressure sensor is an important component to achieve this requirement.

By setting the melt pressure sensor and pressure control device at the mold inlet connection. It can make the product more stable and reduce the waste of materials.

In addition, measuring the pressure across the filter and melt pump is also very important to ensure production safety and optimal performance of the equipment. If the flow of melt into the mold is blocked, a sensor under the filter will sound an alarm (which can be implemented through an instrument) to alert the operator. When a sensor upstream of the filter sounds an alarm, it indicates that the pressure inside the extruder is too high and may cause excessive wear on the screw.

For manufacturers who use melt pumps, it is necessary to measure the inlet and outlet pressure of the melt medium to ensure that the melt medium can continuously flow into the mold. Because any obstruction may cause the melt pump to be blocked.

The pressure sensor equipped on the extrusion line can only measure the pressure at one point, or it can be a series of sensors used to measure the entire production line. The melt pressure sensor is connected to the data recorder and audio alarm device. The processing parameters of the extruder can be adjusted using the processing control system.

More Featured Pressure Transmitters

High-temperature melt pressure sensors are used for pressure measurement and control of high-temperature fluid media in chemical fiber spinning, polyester, rubber and plastic machinery and other equipment. Pressure and temperature can be measured at the same point. 4-20mA amplified signal output, which can be directly entered into the PLC control panel.

We at Sino-Inst supply various types of melt pressure transducers. The products are similar to high temperature melt pressure transmitters such as Dynisco and GEFRAN. Widely used in petrochemical, chemical fiber spinning machinery, non-woven fabrics, non-woven fabrics, plastics, rubber, extrusion equipment and other industries. It has the advantages of high accuracy, good stability, large output signal, good dynamics, and strong versatility.

If you need to purchase melt pressure transducers or have related technical questions, please feel free to contact us.

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    Melt Pressure Transducer for High Temperature Extrusion Equipment

    Melt pressure transducer is mainly used for pressure measurement and control of molten materials under high temperature conditions. Melt pressure sensors are widely used in high-temperature fluid media such as chemical fiber plastics, spinning, polyester, plastics, rubber, extrusion equipment, etc.

    Product SKU: Melt Pressure Transducers

    Product Brand: Sino-Inst

    Product Currency: USD

    Product Price: 269

    Price Valid Until: 2029-09-09

    Product In-Stock: InStock

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