Glue-free Velcro welding solution

Ultrasonic Velcro tape welding machine VietSonic – Strong, clean, neat and consistent welds

The ultrasonic Velcro tape welding machine is designed for workshops producing hook-and-loop tape, straps, garment accessories, medical products, backpacks, bags and other products that require clean and neat welds. Ultrasonic technology helps bond materials quickly without glue or sewing at the welding area, while reducing smearing, scorching and burrs on the surface.

Representative image of ultrasonic Velcro strap welding machine

What is an ultrasonic Velcro tape welding machine?

This is a device that uses high-frequency ultrasonic vibration to generate localized heat at the contact area of the Velcro tape. When the welding horn presses down, ultrasonic energy softens the thermoplastic fibers on the material surface and bonds them together within a very short time.

Unlike glue bonding or manual sewing methods, ultrasonic welding creates a direct bond on the material itself. As a result, the finished product has a cleaner, neater surface and is suitable for production lines that require stable repeatability.

  • No glue, solvent or glue-drying process required.
  • Neat and clean welds with reduced plastic spreading.
  • Suitable for repeated mass production.
  • The welding horn and fixture can be designed according to the actual tape size.
Ultrasonic VELCRO strap welding machine

Ultrasonic Velcro strap welding machine – designed according to real production requirements.

Why use ultrasonic welding for Velcro tape?

Velcro tape is commonly used in products that require adhesion, tensile strength and an aesthetic finish. If the welding is uneven, the product may peel at the edges, look rough or lose quality after long-term use.

1

Strong welds

Ultrasonic energy is concentrated at the welding area, allowing two layers of material to bond firmly without additional glue or sewing thread.

2

Clean and neat surface

The weld can be shaped according to the welding horn design, creating sharp welding lines while reducing burrs and excess glue.

3

Higher productivity

Fast welding cycles and simple operation make it suitable for workshops that need to produce many Velcro tape parts every day.

4

Cleaner and safer

Eliminating glue helps keep the working area cleaner, reduces solvent odors and lowers dependence on consumable materials.

5

Easy parameter control

Welding time, pressure, amplitude and power can be adjusted to suit different tape types, thicknesses and widths.

6

Customized to samples

VietSonic supports sample testing and provides consultation on welding horns, anvils and fixtures to achieve the required weld strength and appearance.

Working principle of the ultrasonic Velcro tape welding machine

The machine operates based on 20 kHz ultrasonic vibration. Mechanical energy is transmitted through the welding horn to the contact area of the tape, creating micro-friction and localized heat to form the bond.

Place the tape into the fixture

The Velcro tape is positioned correctly to ensure the weld is not misaligned, wrinkled or inconsistent between products.

The welding horn presses down

The ultrasonic welding horn contacts the material with the preset pressing force. The fixture keeps the tape stable throughout the welding cycle.

Ultrasonic waves create the bond

High-frequency vibration locally melts the thermoplastic fibers on the Velcro surface, which then cools quickly to form a strong weld.

Velcro strap

Velcro tape/hook-and-loop tape before welding or custom processing.

Video of the ultrasonic Velcro tape welding machine

The video should be placed after the working-principle section so customers can easily understand the actual operation, welding speed and weld appearance after pressing.

Practical applications of the ultrasonic Velcro tape welding machine

The machine is suitable for products using Velcro tape in garments, medical products, sports items, accessories, packaging and industrial manufacturing.

Garments, backpacks and bags

Welding hook-and-loop tape, straps, accessory straps, fixing details on backpacks, bags, wallets, footwear and textile products.

Medical products

Used for fixing straps, fastening bands, support braces and Velcro-based products that require a clean surface and limited chemical adhesive use.

Sports and outdoor products

Suitable for straps in protective gear, sports accessories, tool bags and products that require durable welds with good tensile strength.

Velcro strap weld detail

Velcro tape weld detail after pressing with ultrasonic technology.

Reference technical specifications

Specifications may vary depending on tape width, material thickness, weld requirements and the level of automation required by each workshop.

ItemReference information
Working frequency20 kHz
PowerUp to approximately 2000W, depending on tape width and machine configuration
Suitable materialsVelcro tape, hook-and-loop tape, woven straps containing thermoplastic materials
ApplicationsEnd welding, overlap welding, spot welding and accessory detail welding
Welding horn/fixtureCan be designed according to tape size and weld shape
Operation typeTabletop machine, manual or semi-automatic operation depending on requirements

When should you choose an ultrasonic Velcro tape welding machine?

  • When the product requires strong welds without using adhesive glue.
  • When the workshop wants to reduce sewing, gluing or manual heat-pressing processes.
  • When clean and neat welds are required with minimal impact on the surrounding material area.
  • When producing multiple Velcro tape models with different sizes and requirements.
  • When sample testing is needed to evaluate weld strength, appearance and mass-production feasibility.

How does VietSonic support customers?

  • Consultation on power, frequency and machine configuration based on product samples.
  • Sample testing support for Velcro tape before finalizing the investment plan.
  • Design of welding horns, anvils and fixtures according to actual dimensions.
  • Guidance on operation, parameter setting and basic maintenance.
  • After-sales technical support during machine operation.

Frequently asked questions

Can the machine weld all types of Velcro tape?

The machine is most suitable for Velcro tape containing thermoplastic materials. For tapes with special woven structures, greater thickness or blended materials, sample testing is recommended first.

Does ultrasonic welding require additional glue or sewing thread?

Usually, no. Ultrasonic technology creates a direct bond on the material, helping reduce the need for glue, solvents or sewing thread at the welding area.

Can the welding horn be made according to the tape size?

Yes. VietSonic can provide consultation on welding horns, anvils and fixtures based on tape width, weld shape and product appearance requirements.

Should samples be tested before purchasing the machine?

Sample testing is recommended to determine whether the material is suitable for ultrasonic welding and to find the optimal welding parameters before production.

Need to weld Velcro tape quickly, firmly and without glue?

Send your Velcro tape sample or product requirements to VietSonic for consultation on the suitable machine configuration, welding horn and fixture for your actual production needs.

Hotline: 0938 49 33 66
Email: info.vietsonic@gmail.com
VietSonic – Industrial ultrasonic solutions