Ultrasonic Sewing Machine — Single Feed
Viking Sônica Continuous welding of light synthetic materials, with no thread or needle
Welds PVC, nylon, synthetic leather and synthetic fabrics by ultrasonic vibration — with no thread, no needle and no consumables. Equipment built for continuous use, easy operator adaptation and low maintenance cost.
What is Ultrasonic Sewing — Single Feed
Straight stitching by ultrasonic welding, with no thread or needle
The Viking do Brasil Ultrasonic Sewing Machine — Single Feed joins heat-sealable synthetic materials by ultrasonic vibration — with no thread, needle or glue.
High-frequency ultrasonic vibration generates localized heat through molecular friction, fusing the material at the contact points and creating a continuous, strong weld along the entire seam, with a uniform finish.
It’s designed for standard production and light-to-medium materials, built for continuous use, with easy adaptation for straight-stitch operators and low maintenance cost — with no consumables in the process.
How it works
- 1
The generator converts electrical energy into high-frequency mechanical vibration (ultrasound)
- 2
The synthetic material is guided between the sonotrode and the single feed wheel
- 3
Molecular friction heats and fuses the material layers in continuous contact
- 4
The seam advances continuously, creating a firm, uniform weld
- 5
Clean finish, no needle holes or thread — ready for immediate use
Compatibility
Materials compatible with ultrasonic sewing
The machine welds light-to-medium heat-sealable synthetic materials. 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 — Double Feed
Recommended for tarps, covers and multilayer materials that require greater feeding precision.
Applications
Where Ultrasonic Sewing — Single Feed is used
From hospital garments to bags and accessories: ultrasonic sewing joins light synthetic materials with a strong, continuous weld.
Hospital Garments
Hospital garments, mattress covers and raincoats with a continuous, strong weld and no needle holes.
- Hospital garments and raincoats
- Hospital and gym mattress covers
- Rain capes
- Motorcycle gear
Bags and Accessories
Bags, backpacks, toiletry cases and eco bags in nylon, TNT and synthetic materials, with a uniform, durable seam.
- Bags and backpacks
- Toiletry cases and organizers
- Eco bags
- Curtains and light structures
Technical Textiles
Synthetic technical fabrics with a strong ultrasonic weld, suitable for continuous use.
- Synthetic fiber fabrics
- Materials with up to 35% natural fiber
- Synthetic leather upholstery
- Technical textile structures
Why choose
Advantages of Ultrasonic Sewing — Single Feed
Ultrasonic welding delivers a stronger, more cost-effective seam than traditional thread-and-needle methods.
See it in action
Ultrasonic Sewing — Single Feed in operation
See the machine welding different materials in practice, straight from our YouTube channel.
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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