What is High Frequency Welding (HF Pressing)?
High frequency welding, also known as radio frequency (RF) or high frequency (HF) pressing, is a process commonly used for bonding thermoplastic materials such as PVC, PU, EVA, and synthetic leather. It works by applying a high-frequency electromagnetic field (usually 27.12 MHz or 40.68 MHz) to the material, causing the molecules to vibrate, generate heat, and fuse together under pressure.

Key Features of HF Welding:
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1.Strong Bonding – Produces firm and durable joints that are difficult to separate.
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2.High Efficiency – Fast heating and short welding cycles make it suitable for mass production.
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3.Wide Applicability – Works well with PVC, PU, EVA, and other thermoplastic materials.
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4.Neat and Attractive Finish – Weld lines are smooth, and the process can include embossing or trimming.
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5.Eco-Friendly – No need for chemical adhesives, making it safer and more sustainable.
Common Applications:
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*PVC or PU packaging boxes
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*Stationery items (card holders, binders, name card albums)
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*Inflatable toys, swimming rings, air beds
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*Medical products (IV bags, blood bags)
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*Automotive interiors and synthetic leather products
Conclusion:
High frequency welding is a reliable, efficient, and eco-friendly method of bonding plastic and synthetic materials. It not only ensures durability but also enhances product appearance, making it widely used in packaging, medical, and consumer goods industries.
FAQs
What services do you provide?
We offer one-stop packaging solutions, including design, printing, and handicraft processing for electronic boxes, plastic boxes, paper boxes, paper bags, and book printing.
What types of packaging do you specialize in?
We specialize in electronic packaging, plastic boxes (PVC/PET/PP), paper boxes, paper bags, and custom book printing.
How do you ensure product quality?
We maintain strict quality control at every stage, from material selection to final production, ensuring high-quality standards.
About us
Leading time for samples production?
Normally we need 3-7 days for samples making, 10-12 days to complete your orders,but the delivery time more depends on the order QTY.
What is the box size and structure?
1. All boxes are customized and all detailed requirements can be provided by clients, we are definitely your OEM service supplier.
2. If you have no idea about the measurements and structure on your products, our professional design team can suggest and solute for you .
CR custom vape packaging cardboard boxes are specially designed child-resistant packaging solutions crafted to ensure safety, protection, and premium presentation for vape products. Made from sturdy cardboard materials, these boxes balance regulatory compliance with brand aesthetics.
Our luxury pre-roll packaging boxes are designed to combine elegant presentation with top-tier safety features. Featuring a child-resistant mechanism and a custom paper tray insert, these boxes ensure secure storage while delivering a premium unboxing experience for pre-roll products.
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