Plastic or Steel Strapping?

Strapping materials come in three variations: steel, polyester (PET) and polypropylene (PP).

Steel was previously the most popular strapping material, favoured as it was the strongest, most durable and cost effective option available at the time. It is still used in a small amount of applications where there are no viable plastic options including awkward-shaped pipes and tubing and strapping temperature-sensitive products that may radiate heat through the strap.

However, plastic (PET) strapping is now the most  favoured product across all applications. PET strap is a safe, strong, effective and recyclable option that complies with all Australian operational standards and regulations

PP strapping is another type of plastic material strapping  that can be used to secure lighter items including small boxes, packaging cartons and small pallets. Due to its stretchy nature, it is not recommended for compressing large items or heavy products.

What Type of Strapping Machine is Right For Me?

FROMM engineers a range of strapping machines and tools for various industries and applications. 

  • Automatic Strapping Machines: These machines are operatorless, with pallets or loads arriving by conveyor belt systems. They remove the need for manual labour and be categorised into two distinct types;

    • Automatic machines for inline applications such as boxes totes.

    • Automatic machines for large items such as pallets ( bricks, timber, roof tiles etc).

Automatic strapping machines feature automated processes for feeding, tensioning and cutting the strap, making them ideal for a high production environment.

  • Semi-Automatic Strapping Machines: These strapping machines still require an operator to place and insert the strap, but the machine will correctly tension and seal the package. When choosing a semi-automatic strapping machine, flexibility and ease of use of operators are the largest benefits.

  • Horizontal Strapping Machines: Horizontal machines strap cargo around their width, unitising tall column stacked loads. 

  • Vertical Strapping Machines: Automated vertical strapping machines apply straps around the load and sometimes through a pallet to unitise larger products.

  • Hand-Held Strapping Tools: Can be used across a range of applications in various industries. These tools can be ordered to suit PP, PET or steel strap and can be manual, battery or pneumatic powered.

Related Content 

See here for more information on how to properly apply and tension plastic strapping. If you are using PET or PP materials, you may also be interested in turning your plastic strap waste into a recyclable asset.

If you are using pallet strapping equipment in your business, check out our blog on the top seven pallet packing tips.

Discover how various strapping materials and methods have been used across different industries. Find out more > 

Strapping FAQs

The choices for strapping equipment can be categorised based on the type of strapping process in your business. There are three primary types of strapping processes: manual, semi-automatic, and automated. 

 

Manual Strapping: This method uses hand tools like tensioning devices and sealing tools, along with a buckle or clip to secure the strap. It's best suited for those strapping occasionally and requires purchasing separate tools.

 

Semi-Automatic Strapping: Battery operated strapping tools have made this process much easier. The strapping material (PP, PET or Steel strap) is both tensioned and sealed with the push of a button. Modern batteries can support over 400 cycles per charge, and these tools are lightweight and ergonomic, making them very popular. 

 

Automated Strapping: Common in manufacturing and processing facilities like timber mills, steel and aluminium smelters, automated systems are ideal when the load does not fit on a pallet. These systems are increasingly used in logistics and distribution to enhance load stability and security. 

Strapping tools include manual strapping tools or semi-automatic strapping tools. These tools are hand held and require the operator to apply the strapping around the product and then use the tools for tensioning and sealing. Manual strapping tools require the use of multiple tools for tensioning, sealing and cutting. Whilst semi-automatic tools can tension, seal and cut with the press of a button or lever. Semi-Automatic strapping tools are battery or pneumatic powered. 

 

A strapping machine includes technology that places the strap around the product, applies tension, seals the strap joint and cuts off the remaining strap. These can be simple semi-automatic PP strapping machines, designed to bundle together light cartons and newspapers. Alternatively, they can be more complex automatic PET or steel strapping machines that are part of a process or manufacturing line. These advanced machines may include automatic options such as bearer inserters, top and bottom corner protectors, and top or side compression to square the load. 

When determining the appropriate tension for your load, a few key factors should be considered. For strapping bulky industrial items, it is generally advisable to ensure the strap is very tight. This helps to unitise and secure the product, preventing it from telescoping, rattling, or coming loose.

The right strapping system considers a combination of pre-tension, break strength, and the number of straps used. As a general guideline, PET strap should be pre-tensioned to about half of its break strength. 

When bundling items together or securing them to pallets, maintaining a tight strap is still important, but care must be taken to avoid damaging the product, denting, cutting through it, or breaking the boards of the pallet. In these situations, additional packaging materials, such as stretch film, may be used to help unitise the product, allowing for less pre-tension on the strap. Ancillary items like corner protectors can also be beneficial. 

Battery powered strapping tools, and automated equipment can ensure consistent and repeatable control of the applied strap tension, enhancing the reliability and safety of your strapping process. 

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