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Process Control Equipments used in Food or Dairy Industries

By PMG Engineering ·

 

Introduction

Process control equipment plays a vital role in modern food manufacturing plants, ensuring that critical variables are continuously monitored, managed, and adjusted to maintain consistent product quality, food safety, and production efficiency. These systems include sensors, actuators, and transducers that gather data and interact with programmable control systems in real-time.

As a leading food industry consultant, PMG Engineering integrates state-of-the-art control systems into food factories to meet GMP, HACCP, and FSSC standards.

 

Objective

The implementation of process control equipment aims to:

  • Reduce energy consumption
  • Enhance manufacturing efficiency
  • Ensure SOP compliance
  • Lower pneumatic valve air usage
  • Maintain consistent product output

These improvements align with the goals of food processing consultants and food factory project managers who strive to build smarter and sustainable operations.

Types of Sensors in Food Industry Applications

Sanitary Sensor:

Hygienic Adapter Systems (Fluid-less Type)

Uses corrosion-resistant duplex stainless steel and requires no silicon oil.

Digital Remote Sensors (DRS)

Measures differential pressure with high precision.

Diaphragm Seal Systems

Ensures safe pressure readings in sensitive environments.

 

 

Distributed Temperature Sensor

Monitors temperature distribution up to 50 km.

Ideal for fire detection, preventive maintenance, and equipment protection.

Tunable Diode Laser Spectrometers (TDLS)

Enables real-time gas analysis under extreme conditions.

Non-contact and process-isolated, ideal for food-grade environments.

Sushi Sensor

Enables real-time gas analysis under extreme conditions.

Non-contact and process-isolated, ideal for food-grade environments.

Level sensor:

Controls liquid levels, acid/alkali inputs, and gas flow.

Critical for ingredient dosing and process consistency.

 Coriolis Mass Flowmeters

Recognized for highest accuracy in flow measurement.

Used in batching, dosing, blending, precision coatings, and more.

Actuators in Food Processing and Packaging

Types of Actuators

Electric Actuators

  • Widely used in conveyor systems, packaging robotics, and bread robots.
  • Benefits: hygienic, corrosion-resistant, fluid-free.

Pneumatic Actuators

  • Powered by compressed air for fast, clean, and reliable motion.
  • Suitable for material handling, palletizing, and automated systems.

Key Benefits

  • Fluid-free operation
  • Speed and efficiency
  • Hygienic and robust design
  • Cost-effective maintenance

As part of food technology consulting, actuator selection is crucial for both high throughput and regulatory compliance.

Piezoelectric Transducer

Converts mechanical stress into electrical signals.

Used for monitoring pressure, strain, and temperature in food systems. 

 

Magnetostrictive Transducer

Produces high-frequency vibrations for ultrasonic cleaning and machining.

Valuable in precision food processing equipment.

Conclusion

Process control equipment forms the backbone of modern food factory automation. From sensors and actuators to advanced laser spectrometers and flow meters, each element plays a critical role in delivering safe, consistent, and efficient food products. PMG Engineering, as a trusted food processing consultant and engineering design partner, offers expert integration of these systems in world-class food manufacturing facilities.

Reference

 1)   https://www.yokogawa.com/industries/food-beverage/#Overview

2)    https://www.deeterelectronics.com/

3)    https://www.venturemfgco.com/blog/

4)    https://www.mecvel.com/portfolio-item/

Frequently asked
What do we actually gain by investing in process control equipment in a dairy plant?
Process control equipment in food and dairy plants continuously monitors, manages and adjusts critical variables to hold consistent product quality, food safety and production efficiency. The practical gains PMG Engineering targets are reduced energy consumption, enhanced manufacturing efficiency, assured SOP compliance, lower pneumatic valve air usage and consistent product output, all achieved by sensors, actuators and transducers feeding data to programmable control systems in real time.
Which sensor gives the highest accuracy for dosing and blending liquids?
Coriolis mass flowmeters are recognised for the highest accuracy in flow measurement and are used in batching, dosing, blending and precision coating applications in food and dairy processing. Where liquid level, acid or alkali inputs and gas flow must be regulated, level sensors are the appropriate choice, as they are critical for ingredient dosing and overall process consistency.
Should we specify electric or pneumatic actuators for our packaging line?
Electric actuators are widely used in conveyor systems, packaging robotics and bread robots, offering hygienic, corrosion-resistant and fluid-free operation. Pneumatic actuators run on compressed air for fast, clean and reliable motion and suit material handling, palletizing and automated systems. Actuator selection matters for both high throughput and regulatory compliance, so PMG Engineering matches the type to the duty on each line.
What sanitary sensor options avoid contamination risk from fill fluids?
Hygienic adapter systems of the fluid-less type use corrosion-resistant duplex stainless steel and require no silicon oil, removing fill-fluid concerns. Digital Remote Sensors (DRS) measure differential pressure with high precision, and diaphragm seal systems ensure safe pressure readings in sensitive environments. Tunable Diode Laser Spectrometers are non-contact and process-isolated, which makes them suited to food-grade environments.
How can we monitor temperature over long distances for fire detection and equipment protection?
A distributed temperature sensor monitors temperature distribution up to 50 km, making it suitable for fire detection, preventive maintenance and equipment protection across a food or dairy facility. PMG Engineering incorporates such sensing into factory control architecture so that temperature excursions along extended runs are detected early rather than at a single point measurement.
Which standards does PMG Engineering design control systems to meet?
PMG Engineering integrates state-of-the-art process control systems into food factories to meet GMP, HACCP and FSSC standards. Sensors, actuators, transducers, laser spectrometers and flow meters are selected and engineered together so that the plant delivers safe, consistent and efficient food products while supporting documented SOP compliance and regulatory requirements.
CITE THIS

PMG Engineering. (2023). Process Control Equipments used in Food or Dairy Industries. PMG Engineering. https://pmg.engineering/Article/164/process-control-equipments-used-in-food-or-dairy-industries/

https://pmg.engineering/Article/164/process-control-equipments-used-in-food-or-dairy-industries/