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How does a self labeller work?

Sep 25, 2025

As a reputable self labeller supplier, I've witnessed firsthand the growing demand for efficient and reliable labelling solutions across various industries. In this blog post, I'll delve into the inner workings of self labellers, exploring their components, operating principles, and the benefits they offer.

Components of a Self Labeller

A self labeller is a complex machine composed of several key components, each playing a crucial role in the labelling process. Understanding these components is essential for grasping how a self labeller functions.

  • Label Dispenser: The label dispenser is responsible for holding and feeding the labels onto the product. It typically consists of a label roll holder, a tension control system, and a label peel plate. The label roll holder securely holds the label roll, while the tension control system ensures that the labels are fed smoothly and evenly. The label peel plate separates the labels from the liner, preparing them for application.
  • Product Conveyor: The product conveyor transports the products through the labelling station. It can be a belt conveyor, a roller conveyor, or a chain conveyor, depending on the type of products being labelled and the specific requirements of the application. The conveyor speed can be adjusted to match the labelling speed, ensuring accurate and consistent label placement.
  • Labelling Head: The labelling head is the heart of the self labeller. It applies the labels to the products with precision and accuracy. There are several types of labelling heads available, including pressure-sensitive labelling heads, hot melt labelling heads, and cold glue labelling heads. Pressure-sensitive labelling heads are the most commonly used type, as they offer fast and efficient labelling with minimal maintenance.
  • Control System: The control system manages the operation of the self labeller. It includes a programmable logic controller (PLC), a human-machine interface (HMI), and various sensors and actuators. The PLC controls the movement of the label dispenser, the product conveyor, and the labelling head, ensuring that the labelling process runs smoothly and efficiently. The HMI allows the operator to set the labelling parameters, such as label size, label position, and labelling speed, and monitor the operation of the machine. The sensors and actuators detect the presence of products, labels, and other critical components, and provide feedback to the control system to ensure accurate and reliable labelling.

Operating Principles of a Self Labeller

The operating principles of a self labeller can vary depending on the type of labelling technology used. However, the basic process typically involves the following steps:

  1. Product Feeding: The products are loaded onto the product conveyor and transported to the labelling station.
  2. Label Dispensing: The label dispenser feeds the labels onto the labelling head. The labels are separated from the liner and held in place by the labelling head.
  3. Label Application: The labelling head applies the labels to the products. The label is pressed onto the product surface with a specified amount of pressure, ensuring that it adheres securely.
  4. Product Ejection: The labelled products are ejected from the labelling station and transported to the next stage of the production process.

Types of Self Labellers

There are several types of self labellers available, each designed to meet the specific needs of different industries and applications. Some of the most common types include:

  • Pressure-Sensitive Labellers: Pressure-sensitive labellers are the most widely used type of self labellers. They use pressure-sensitive labels, which are pre-coated with an adhesive on the back. The labels are applied to the products by pressing them onto the surface, without the need for additional adhesives or heat. Pressure-sensitive labellers are fast, efficient, and versatile, making them suitable for a wide range of products and applications.
  • Hot Melt Labellers: Hot melt labellers use hot melt adhesives to apply the labels to the products. The adhesive is heated to a liquid state and applied to the back of the label using a hot melt gun or a roller. The label is then pressed onto the product surface, where the adhesive cools and solidifies, bonding the label to the product. Hot melt labellers are ideal for applications where a strong and permanent bond is required, such as in the food and beverage industry.
  • Cold Glue Labellers: Cold glue labellers use cold glue adhesives to apply the labels to the products. The adhesive is applied to the back of the label using a glue roller or a spray gun. The label is then pressed onto the product surface, where the adhesive dries and bonds the label to the product. Cold glue labellers are suitable for applications where a high-quality and aesthetically pleasing label is required, such as in the pharmaceutical and cosmetic industries.

Benefits of Using a Self Labeller

Using a self labeller offers several benefits for businesses, including:

  • Increased Efficiency: Self labellers can label products at a much faster rate than manual labelling, reducing labour costs and increasing productivity. They can also operate continuously, 24 hours a day, 7 days a week, ensuring a consistent and reliable labelling process.
  • Improved Accuracy: Self labellers can apply labels with a high degree of accuracy, ensuring that the labels are placed in the correct position and orientation on the products. This reduces the risk of mislabelling and improves the overall quality of the products.
  • Enhanced Flexibility: Self labellers can be easily adjusted to accommodate different label sizes, shapes, and materials, making them suitable for a wide range of products and applications. They can also be integrated with other production equipment, such as filling machines and capping machines, to create a fully automated production line.
  • Cost Savings: Self labellers can reduce the cost of labelling by eliminating the need for manual labour and reducing the amount of wasted labels. They can also improve the efficiency of the production process, reducing the overall cost of production.

Applications of Self Labellers

Self labellers are used in a wide range of industries, including:

  • Food and Beverage Industry: Self labellers are used to label food and beverage products, such as bottles, cans, jars, and cartons. They can apply labels with product information, nutritional facts, barcodes, and other important details, ensuring compliance with regulatory requirements and providing consumers with essential information.
  • Pharmaceutical Industry: Self labellers are used to label pharmaceutical products, such as tablets, capsules, vials, and syringes. They can apply labels with product names, dosages, instructions for use, and other critical information, ensuring the safety and efficacy of the products.
  • Cosmetic Industry: Self labellers are used to label cosmetic products, such as bottles, tubes, jars, and compacts. They can apply labels with brand names, product descriptions, ingredients, and other marketing information, enhancing the visual appeal of the products and attracting consumers.
  • Consumer Goods Industry: Self labellers are used to label consumer goods products, such as household cleaners, personal care products, and electronics. They can apply labels with product information, usage instructions, and safety warnings, providing consumers with essential information and ensuring the proper use of the products.

Conclusion

Self labellers are essential tools for businesses in various industries, offering increased efficiency, improved accuracy, enhanced flexibility, and cost savings. By understanding how a self labeller works and the benefits it offers, businesses can make informed decisions when choosing a labelling solution that meets their specific needs.

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If you're interested in learning more about our self labelling solutions or have any questions, please feel free to contact us. We'd be happy to discuss your requirements and provide you with a customized labelling solution that meets your needs.

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