Portable Gun for Ultrasonic Plastic Welding
Viking PoliWeld Maintenance, repair and manufacturing of thermoplastics
Welds PP, PC+ABS, PA, PE and PVC with no glue, no odor and no disassembly. Ideal for welding, repairing and maintaining automotive parts, tanks, tarps and inflatables — 100% Brazilian manufacturing.
What is the Viking PoliWeld
Portable ultrasonic machine for plastic welding
The Viking PoliWeld is a portable ultrasonic machine designed to weld thermoplastics with precision — joining, fusing and rebuilding parts with no glue, no solvent and no external heat.
High-frequency ultrasonic vibration generates localized heat through molecular friction, melting the thermoplastic at the contact points. With light manual pressure, the parts bond in seconds, creating a permanent molecular weld that is homogeneous and clean-finished.
Because it welds with such precision, the Viking PoliWeld has also become the ideal tool for maintenance and repair of existing plastic parts — widely used by auto repair shops to rebuild cracked or broken automotive components.
How it works
- 1
The generator converts electrical energy into high-frequency mechanical vibration (ultrasound)
- 2
The gun transmits this vibration to the sonotrode in contact with the thermoplastic
- 3
Molecular friction heats and melts the material at the contact points in seconds
- 4
Light manual pressure joins the parts. Once cooled, the weld is firm and permanent
- 5
Clean finish, no burrs or residue — the part is ready for immediate use
Compatibility
Materials compatible with ultrasonic welding
The Viking PoliWeld welds the main thermoplastics and laminated materials used in the automotive industry, packaging, tanks and flexible structures.
Bumpers, automotive panels, packaging and tanks
Headlights, taillights, fenders and exterior panels
Automotive technical parts and high-resistance components
Liquid tanks, reservoirs and rigid packaging
Rigid structures, profiles and various plastic components
Industrial tarps, inflatables, tents and covers
Compatibility may vary depending on the thickness, formulation and condition of the material. If you have questions about a specific material, contact our technical team.
Interchangeable tips
4 sonotrode options for every type of weld
The Viking PoliWeld comes with 4 tip (sonotrode) options, each designed for a specific finish and application — simply swap the tip according to the result you need.
Round knurled
Greater adhesion and pressure distribution — indicated for wider weld areas.
Round
Precision spot welding, ideal for details and hard-to-reach areas.
Rectangular knurled
Greater mechanical grip between parts, indicated for joints that require more strength.
Rectangular
Smooth, even finish, ideal for linear welds and flat surfaces.
The generator
Full control over the welding process
The Viking PoliWeld gun is connected to the generator, where you adjust the frequency, the cooling time and the welding time — fine-tuning the process according to the material and the result you want.
The panel also includes test buttons and a tuning indicator, ensuring the equipment works perfectly on every application.
It’s a brand-new piece of equipment, built on more than 40 years of Viking do Brasil‘s tradition in ultrasonic generators.
- Frequency:
- Fine-tuned according to the thermoplastic.
- Cooling time:
- Controls the cycle between one weld and the next.
- Welding time:
- Sets the duration of the ultrasound application.
- Test buttons and tuning indicator:
- To check the equipment before each use.
Applications
Where the Viking PoliWeld is used
From manufacturing to maintenance: the Viking PoliWeld welds, repairs and rebuilds plastic parts across different sectors.
Auto Repair Shops
Weld and repair plastic vehicle parts without replacement, reducing cost for the customer and increasing the shop’s margin.
- Bumper — PP (Polypropylene)
- Headlights and taillights — PC and PMMA (acrylic)
- Fenders and exterior panels — PC+ABS
- Door trim and interior finishes
- Parts in PA (Polyamide/Nylon)
Liquid Tanks
Weld tanks with cracks or holes without having to replace the reservoir — for water or compatible chemical products.
- PE (Polyethylene) residential tanks
- Industrial plastic reservoirs
- Compatible chemical product tanks
- Watertight weld, in the field, no need to remove the tank
Tarps and Inflatables
Weld tarps and flexible PVC structures with no glue and no deformation, restoring strength and water-tightness.
- Laminated PVC and polyester-reinforced PVC
- Inflatable toys and pools
- Tents, covers and industrial tarps
- Professional and recreational inflatables
Why choose
Viking PoliWeld advantages
Ultrasonic welding delivers results that glue and hot welding can’t — without the drawbacks of conventional chemical or thermal processes.
See it in action
Viking PoliWeld videos in use
See the ultrasonic welding being applied 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 Viking PoliWeld follows the same quality standard as our full product line, with warranty, technical support and parts available directly from the manufacturer.
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