Ultrasonic Sewing Machine — Double Feed
Viking Sônica Continuous welding of heavy, dense materials, with no thread or needle
Welds tarps, multilayer materials and dense fabrics by ultrasonic vibration — with a dual-wheel system that ensures high feeding precision. No thread, no needle and no consumables.
What is Ultrasonic Sewing — Double Feed
Ultrasonic sewing for heavy, dense materials
The Viking do Brasil Ultrasonic Sewing Machine — Double Feed uses a dual-wheel feeding system that grips the material at two simultaneous points during welding.
This system ensures greater feeding precision and prevents the material from slipping — essential for thicker, multilayer or heavier fabrics, which tend to slip in single-feed machines.
The result is a seam with high alignment and uniformity, even on dense materials such as tarps, covers and multilayer structures — with no thread, needle or glue.
How it works
- 1
The generator converts electrical energy into high-frequency mechanical vibration (ultrasound)
- 2
The material is guided by two feed wheels, which grip the fabric at two points
- 3
This dual support prevents slipping, even on heavy or multilayer materials
- 4
Molecular friction fuses the layers with high uniformity along the seam
- 5
Clean, aligned finish, ready for immediate use — no needle holes
Compatibility
Materials compatible with ultrasonic sewing
The machine welds heavy, dense heat-sealable synthetic materials with high feeding precision. See examples of products made with each material:
Not sure if the material you work with is compatible with our machine? Send us a sample and we’ll run a free test. We’ll get back to you with the results so you can check the weld strength and finish quality before deciding.
Check out the Ultrasonic Sewing Machine — Single Feed
Recommended for TNT, nylon, synthetic leather and light-to-medium synthetic fabrics.
Applications
Where Ultrasonic Sewing — Double Feed is used
From industrial covers to inflatable structures: Double Feed ensures uniformity even on heavy, multilayer materials.
Tarps and Covers
PVC tarps and industrial covers welded with high strength and uniform alignment.
- Awnings and tents
- Industrial covers
- Truck tarps and structures
- Heavy protective covers
Inflatable Structures
Multilayer materials for inflatable structures and equipment that require reinforced welding.
- Industrial inflatable structures
- Professional equipment
- Textile-reinforced tarps
- Reinforced technical covers
Awnings and Retractable Structures
Dense fabrics for retractable awnings and covers that require high alignment in the seam.
- Retractable awnings
- Heavy covers
- Multilayer structures
- Productions requiring high alignment
Why choose
Advantages of Ultrasonic Sewing — Double Feed
The dual-wheel system delivers more precise feeding and a more uniform seam on materials that require greater control.
See it in action
Ultrasonic Sewing — Double Feed in operation
See the machine welding heavy material in practice. More videos coming soon.
Part of the AALOK Group — over 40 years in industrial ultrasound
Viking do Brasil has been manufacturing ultrasonic machines since 1980 in Minas Gerais. The Sônica ultrasonic sewing line follows the same quality standard as our full product line, with technical support and parts available directly from the manufacturer.
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