Industries
Plastic
Featured events:
CHINAPLAS 2026
National Exhibition and Convention Center (NECC), Hongqiao, Shanghai, PR China
SPS ITALIA 2026
Fiere di Parma, Parma, Italy
Smart solutions to shape the plastic of the future
A solid application know-how, the result of over 50 years of experience in the sector, makes Gefran the reference point for the people who operate in extrusion, injection and blowing processes. Our solutions are born from listening to the real needs of the market and combine precision sensors, advanced automation and digital technologies into an integrated and scalable ecosystem. Process reliability, energy efficiency and simplicity of integration: every Gefran proposal is designed to offer concrete and sustainable value to the people who transform plastic into innovation.
Applications of our products
Extruder
Learn about the extrusion process: a key technology for the continuous transformation of polymers, from the melting of granules to the precise and homogeneous forming of profiles, tubes, sheets or films.
Requirements:
Enhancing Production Data
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Control of the extrusion process
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Temperature control
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Melt temperature measurement
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Flow control through the melt pump
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Dirty filter detection
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Requirement:
Enhancing Production Data
In today’s industrial context, companies aim to leverage data to improve efficiency, prevent failures, and reduce energy consumption.
Requirement:
Control of the extrusion process
Synchronous and centralised regulation of critical parameters (speed and synchronisation with the other motors of the screw line, temperatures, melt pressure) to guarantee process stability, the rheological quality of the product and operational efficiency.
Solution:
Requirement:
Temperature control
Thermal stability of the molten polymer in every heating zone to ensure constant viscosity, dimensional consistency and surface quality.
Requirement:
Melt temperature measurement
Accurate monitoring of the temperature of the molten polymer before forming to ensure correct viscosity and process stability.
Solution:
Requirement:
Flow control through the melt pump
Adjustment of the flow rate of the molten polymer downstream of the extruder to obtain dimensional consistency of the product and constant quality.
Solution:
Requirement:
Dirty filter detection
Upstream/downstream pressure monitoring of the extruder filter to control the pressure on the device, in order to define manual or automated cleaning interventions.
Solution:
GRZ-H
Three-phase solid-state relays, 10 A to 75A
- Zero-crossing voltage switching (ZC)
- Overtemperature protection
- Compact designs
WPA-A
Contactless linear position transducer with HYPERWAVE magnetostrictive technology
- Strokes from 50 to 4000 mm
- High precision and long life, aluminum profile with minimal footprint for industrial applications
- Analog output interface (voltage or current), up to 2 cursors for position and speed measurement
G-Mation P6
Modular automation controller
- Modular PLC based on IEC61131-3 standard
- Integrated web server for local and remote visualization
- Supports Docker architecture – advanced PLC functions, Industrial IoT connectivity, open-source applications
IE PLc
MELT pressure transmitter with IMPACT piezoresistive technology and no filling fluid
- Performance Level “C”
- Thick diaphragm and robust mechanics for long life and high reading stability
- RoHS compliant, integrated Autozero function, accuracy up to ±0.25% FS
