Forsstrom Hot-Wedge Welding Machines
Our Hot-Wedge Welding Machines
Industrial Welding Solutions for PVC, TPU, PU & PE
A hot-wedge welding machine is a reliable and energy-efficient solution for joining thermoplastic materials in demanding industrial production. Designed for controlled seam formation and consistent weld strength, hot-wedge technology is widely used in the manufacturing of tarpaulins, tents, inflatable structures, truck covers, signage, and technical textiles.
Forsstrom develops industrial hot-wedge welding machines for global manufacturers requiring high production speed, repeatable seam quality, and low operating costs.
Our systems are engineered for PVC, TPU, PU, and PE foils — from thin films to multilayer reinforced materials.
What Is Hot-Wedge Welding?
Hot-wedge welding is a thermal joining process where a heated wedge precisely fuses overlapping thermoplastic materials under controlled pressure. Unlike hot-air welding, the heat is applied directly through the wedge, enabling:
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Stable and repeatable seam quality
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Reduced energy consumption
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Minimal compressed air usage
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Lower noise and cleaner working environments
For many applications, a hot-wedge welding machine provides an efficient alternative to high-frequency welding. In other production setups, both technologies work together — HF welding for complex shapes and details, hot-wedge welding for long, straight seams and high-volume panel joining.
Selecting the right method depends on material type, seam design, and production flow.
Why Choose a Forsstrom Hot-Wedge Welding Machine?
Precision seam control
Servo-driven foil fusion and digital roller pressure regulation ensure uniform weld strength across long production runs.
High production speed
Welding speeds up to 30 m/min support efficient industrial manufacturing.
Energy efficiency
Compared to conventional hot-air systems, energy consumption can be reduced by up to 92% and compressed air usage by up to 99.5%, lowering total cost of ownership.
Intelligent automation
Route Mode automatically adjusts speed and drive when welding curves or complex geometries, improving repeatability and reducing operator dependency.
Industrial control system
Built on Siemens components with a 10.1” HMI multi-touch interface for real-time parameter monitoring and stored production settings.
Stationary or Travelling Hot-Wedge Welding Machine?
Forsstrom offers two industrial configurations to match different production requirements.
HW-WS
Stationary Hot-Wedge Welding Machine
The HW-WS is designed for fixed production environments requiring stable and controlled welding conditions. Its stationary configuration ensures predictable seam quality across repeatable industrial runs.
Typical use cases:
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Awnings and sun protection systems
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Billboards and signage
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Sports and leisure products
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Inflatable structures
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Tarpaulins and truck covers
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Tents and lightweight constructions
The HW-WS is well suited for manufacturers with defined workflows and consistent panel sizes.
HW-WT
Travelling Hot-Wedge Welding Machine
The HW-WT features a travelling welding head and extended welding table, making it ideal for joining large or heavy panels with high accuracy.
Typical use cases:
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Large industrial covers
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Technical textile structures
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Tents and halls
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Inflatable products
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Signage and façade systems
The travelling design supports large-scale production while maintaining precise seam control.
Applications of Hot-Wedge Welding
Hot-wedge welding machines are widely used in global industrial production of:
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PVC and TPU tarpaulins
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Truck and trailer covers
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Tents and membrane structures
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Inflatable boats and air-supported products
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Billboards and printed textiles
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Lightweight architectural fabrics
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Technical textile enclosures
This method is particularly effective for overlap seams, hems with pockets, reinforced edges, and long straight welds.
Configurable for Industrial Production
Forsstrom hot-wedge welding machines can be configured with:
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Heating wedges in multiple widths (10–50 mm)
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Standard or high-speed wedge versions
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Silicon or stainless-steel rollers
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Adjustable guiding tools for hems and overlap welding
Silver heating wedges offer extended service life compared to aluminum, supporting continuous production environments.
Hot-Wedge Welding and High-Frequency Welding
Hot-wedge welding and high-frequency welding each serve distinct industrial purposes.
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Hot-wedge welding is often preferred for long seams and high-volume panel joining.
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High-frequency welding is well suited for detailed geometries, three-dimensional shapes, and airtight seams.
In many production facilities, both technologies operate together to optimize efficiency, seam quality, and manufacturing flexibility.
Forsstrom supports manufacturers globally with both solutions, helping define the most effective welding strategy for each application.
Industrial Welding Solutions for Global Manufacturers
Forsstrom hot-wedge welding machines combine precision mechanics, servo technology, and energy efficiency to meet the demands of modern industrial production.
Whether you require a stationary hot-wedge welding machine for controlled workflows or a travelling system for large-scale panel welding, our team can configure a solution aligned with your materials, seam design, and production goals.
Contact Forsstrom to discuss your application requirements or request a tailored configuration for your production line.