What kind of bundling materials does a Carton Bundling Machine use?
Jun 20, 2025
In the packaging industry, carton bundling machines play a crucial role in efficiently securing and packaging cartons. As a reputable supplier of Carton Bundling Machine, I am often asked about the types of bundling materials these machines can use. In this blog post, I will explore the various bundling materials suitable for carton bundling machines, their characteristics, and applications.
Plastic Strapping
Plastic strapping is one of the most commonly used bundling materials for carton bundling machines. It is available in different types, including polypropylene (PP) and polyester (PET) strapping.
Polypropylene (PP) Strapping
PP strapping is lightweight, flexible, and cost - effective. It is suitable for light to medium - duty bundling applications. PP strapping is available in a variety of widths and thicknesses, allowing for customization based on the specific requirements of the cartons.
One of the advantages of PP strapping is its ease of use. It can be easily tensioned and sealed using a heat - sealing or friction - welding method. PP strapping is also resistant to moisture and chemicals, making it suitable for a wide range of environments. However, it has a relatively low tensile strength compared to other strapping materials, which limits its use in heavy - duty applications.
Polyester (PET) Strapping
PET strapping, on the other hand, is stronger and more durable than PP strapping. It has a high tensile strength, which makes it suitable for heavy - duty bundling applications. PET strapping is also less likely to stretch or creep over time, ensuring a more secure and long - lasting bundle.
PET strapping can be sealed using a variety of methods, including heat - sealing, friction - welding, and notch - sealing. It is resistant to UV radiation, moisture, and chemicals, making it suitable for outdoor and harsh environments. Although PET strapping is more expensive than PP strapping, its superior strength and durability often justify the higher cost, especially for high - value or heavy cartons.
Paper Strapping
Paper strapping is an environmentally friendly alternative to plastic strapping. It is made from recycled paper and is biodegradable, making it a sustainable choice for companies looking to reduce their environmental impact.
Paper strapping is suitable for light to medium - duty bundling applications. It has a relatively low tensile strength compared to plastic strapping, but it is still strong enough to secure most cartons. Paper strapping can be sealed using an adhesive or a mechanical seal.
One of the advantages of paper strapping is its ability to conform to the shape of the cartons, providing a more aesthetically pleasing bundle. It is also quieter to use than plastic strapping, which can be an advantage in noise - sensitive environments. However, paper strapping is more susceptible to moisture damage than plastic strapping, so it may not be suitable for outdoor or humid environments.
Steel Strapping
Steel strapping is the strongest and most durable bundling material available. It is suitable for heavy - duty applications where a high level of security is required, such as bundling large or heavy cartons.
Steel strapping has a very high tensile strength and is resistant to cutting and abrasion. It can be sealed using a variety of methods, including crimping, welding, and notch - sealing. Steel strapping is also resistant to heat and cold, making it suitable for a wide range of environments.
However, steel strapping is more expensive than other bundling materials and is heavier, which can increase shipping costs. It also requires special tools for tensioning and sealing, which can add to the overall cost of the bundling process.
Tape
Tape is another commonly used bundling material for carton bundling machines. It is available in different types, including pressure - sensitive tape and hot - melt adhesive tape.
Pressure - Sensitive Tape
Pressure - sensitive tape is easy to use and does not require any special equipment for application. It is suitable for light to medium - duty bundling applications and can be used to seal the edges of cartons or to secure multiple cartons together.
Pressure - sensitive tape is available in a variety of widths and strengths, allowing for customization based on the specific requirements of the cartons. It is also available in different colors, which can be used for identification or branding purposes.


Hot - Melt Adhesive Tape
Hot - melt adhesive tape is a stronger and more durable alternative to pressure - sensitive tape. It is applied using a hot - melt adhesive applicator, which melts the adhesive and applies it to the tape.
Hot - melt adhesive tape has a high bonding strength and is resistant to moisture and chemicals. It is suitable for heavy - duty bundling applications and can be used to secure large or heavy cartons. However, it requires special equipment for application, which can add to the overall cost of the bundling process.
Choosing the Right Bundling Material
When choosing a bundling material for your carton bundling machine, several factors need to be considered, including the weight and size of the cartons, the environment in which the cartons will be stored and transported, and the budget.
For light to medium - duty applications, plastic strapping (especially PP strapping) or tape may be the most cost - effective choice. For heavy - duty applications, PET strapping or steel strapping may be required to ensure a secure bundle. If environmental sustainability is a concern, paper strapping may be a suitable option.
As a supplier of Carton Bundling Machine, I can provide you with professional advice on choosing the right bundling material for your specific needs. Our machines are designed to work with a wide range of bundling materials, ensuring that you can find the most suitable solution for your packaging requirements.
If you are interested in our Cardboard Box Packing Machine or Mono Carton Packing Machine, or if you have any questions about bundling materials, please feel free to contact us. We are always ready to assist you in finding the best packaging solutions for your business.
References
- Packaging Machinery Manufacturers Institute (PMMI). Packaging Machinery: A Guide to Selection and Application.
- Association for Packaging and Processing Technologies (PMMI). Best Practices in Packaging Materials Selection.
