Seals for PET and PP strapping

The strapping can be sealed with different tools: battery strapping tool (friction seal using the friction welding method), manual tool (sleeve seal), stationary strapping machine (with thermal element/sealing tongue). No additional seals are required for the friction welding process.

• Reliability: The seals offered by Sandax are designed to provide high breaking strength to ensure that strapping holds securely even under extreme conditions.
  
• Versatility: With a variety of seal types and sizes, Sandax offers solutions for a wide range of applications, from light to heavy loads.
  
• Quality: All seals are manufactured from high quality materials and are subject to stringent quality controls to ensure the highest levels of safety and efficiency.
  

Overview of closure types

• High strength: The melting and welding of the material creates a connection that is highly resilient.
  
• No additional materials: No additional sleeves or clips are required, which reduces material costs and waste.
  
• Automation: Friction seals can be used in automated strapping machines, which increases efficiency in industrial applications.
  

Sleeve seals

• Easy to use: Sleeve seals are easy to use and require no specialised equipment.
  
• Cost effective: These seals are cost effective and ideal for smaller applications.
  
• Flexibility: They are available in different sizes to support different belt widths and thicknesses.
  

Magazine seals

• Automation: They are ideal for use in automated systems and enable fast strapping.
  
• High strength: Stainless steel offers excellent breaking strength, which is required for heavy loads.
  
• Efficiency: Automated feeding of the cores speeds up the strapping process and reduces labour costs.
  

Specifications and applications

• Use: Friction fasteners for PET straps
  
• Advantage: High strength and resistance to weathering secure heavy machinery and building materials during transport.
  

• Application: Sleeve fasteners for PP straps
  
• Advantage: Cost-effective and easy to use for securing boxes and pallets in the warehouse.
  

• Application: Magazine seals for PP strapping
  
• Advantage: Efficient and fast strapping of large quantities of products in industrial packaging systems.
  

• Efficiency: The friction lock offers extremely high strength as the belt is welded by friction, creating a permanent joint without additional materials.
  
• Cost: The initial investment for machines using friction fasteners can be high, but costs can be saved in the long term by eliminating sleeves and clips.
  
• Applications: Ideal for heavy loads and industrial applications where high loads and extreme conditions prevail.
  

• Efficiency: Sleeve fasteners are less efficient than friction fasteners, but offer sufficient strength for light to medium duty applications.
  
• Cost: These closures are less expensive and do not require expensive machinery, making them a budget-friendly choice for smaller operations.
  
• Applications: Best suited for manual applications and smaller packaging processes that do not require extremely high breaking strength.
  

Advantages and disadvantages of the closure types

• Advantages: High strength, no additional materials, ideal for heavy loads.
  
• Disadvantages: High initial investment, requires specialised machinery or equipment.
  

• Advantages: Inexpensive, easy to handle, ideal for manual applications.
  
• Disadvantages: Less efficient, not suitable for extremely high loads.
  

Decision-making aids for selecting the right type of closure

• Load: What load will be placed on the strapping? Friction seals or magazine seals are more suitable for heavy loads.
  
• Cost: What budget do you have available? Sleeve seals offer a cost-effective solution, while friction seals can offer long-term cost savings.
  
• Application: Will the fastener be used in a manual or automated environment? Combination tensioners and magazine caps are ideal for automated processes, while sleeve caps are better suited to manual applications.
  
• Environmental conditions: Under what conditions is the strapping used? Friction seals and magazine seals offer high resistance to extreme conditions.
  

• PET strapping: These straps are known for their high tensile strength and resistance to weathering. They are particularly suitable for heavy loads and outdoor applications.
• PP strapping: These straps are more flexible and easier to handle, making them ideal for light to medium loads and indoor applications.
  

• Heavy loads: For applications where high tensile strength is required, such as in the heavy-duty industry, stainless steel friction locks or magazine seals are ideal.
  
• Light to medium loads: For less demanding applications, sleeve fasteners or combination tensioners may be sufficient.
  

• Cost-conscious options: Sleeve latches are generally less expensive and a good choice for smaller operations or less critical applications.
  
• Long-term investment: Friction fasteners and magazine catch sleeves offer greater strength and longevity, making them a cost-effective choice for long-term investments.
  

• Automated processes: If your packaging processes are automated, magazine seals are the best choice as they ensure fast and efficient strapping.
  
• Manual processes: For manual strapping, tube seals or combination tensioners are a suitable choice.
  

Recommendations for specific applications

• Recommended seals: Friction seals for PET strapping
  
• Advantages: High tensile strength and resistance to weathering, ideal for outdoor use and extreme conditions.
  

• Recommended closures: Sleeve closures for PP straps
  
• Advantages: Cost-effective and easy to handle, suitable for securing boxes and pallets in warehouses.
  

• Recommended closures: Magazine seals for PP and PET straps
  
• Advantages: Efficient and fast strapping, high breaking strength, ideal for large production lines.
  

Purchasing advice steps

1. Analyse the requirements: Determine the specific requirements of your strapping application, including the type of strapping, the load and the environment.
   
2. Compare the options: Compare the different types of seals in terms of their efficiency, cost and suitability for your specific requirements.
   
3. Advice and testing: Take advantage of expert advice from Sandax to ensure you select the best seal for your needs. Test different closure types to find the optimum solution.
   
4. Long-term planning: Consider long-term costs and efficiencies, especially when investing in automated systems. The right choice can lead to long-term cost savings and increased security.
   

• Friction closures: These offer high strength through the friction welding process and are ideal for heavy loads and industrial applications. They eliminate the need for additional materials such as sleeves, providing a cost-effective and environmentally friendly solution.
  
• Sleeve closures: These are cost-effective and easy to use, making them the ideal choice for light to medium duty applications and manual strapping processes.
  
• Magazine seals: These are perfect for automated strapping processes in large industries and offer the high breaking strength required for heavy loads.