Welding geomembrane details in corners, perimeter reinforcements, repair patches, and areas where continuous hot wedge welders cannot reach requires a manual hot air blower with stable airflow, adjustable temperature control, and ergonomics designed for prolonged on-site use. This hot air welding machine—also known as a hot air welder, industrial hot air blower, or manual heat fusion gun—is manufactured by KORWINS with 1600 W of power, designed for geomembrane installation contractors, professional waterproofing technicians, synthetic roofing specialists, and for on-site repairs in civil and industrial construction.
Key Benefits
- Stable airflow under continuous work: The system maintains a constant flow during long shifts, a necessary condition for homogeneous fusion in long seams without thermal variations that compromise watertightness.
- Precise adjustable temperature: Fine heat control allows working with thin membranes (1-1.5 mm), 2 mm thick HDPE, PVC, TPO, and various synthetic materials without scorching the material or under-fusing.
- Balanced ergonomics for prolonged use: Compact structure with a handle designed to reduce operator fatigue during continuous workdays, a differentiating factor compared to low-budget equipment that tires the operator in a few hours.
- Compatible with interchangeable nozzles: The head design accepts flat, round, and speed welding nozzles, allowing the tool to adapt to the project's geometric joint type.
- Construction for industrial work: Resistant metal casing against dust and occasional impacts, motor sized for intensive use in construction with continuous loads for years.
Typical Applications and Uses
- Welding geomembrane details: corners, pipe junctions, perimeter reinforcements, and areas inaccessible to continuous hot wedge welders.
- Sealing synthetic membranes on roofs: PVC, TPO, EPDM on industrial and commercial roofs.
- Repairing installed geomembranes with reinforcement patches and refusion of defective seams.
- Manufacturing and repairing transport tarpaulins, inflatable tarpaulins, industrial tents, and custom waterproofing elements.
Quality and Durability
An inexpensive hot air gun fails in two areas: the blower motor is underpowered or weakly constructed (burning out or losing flow after a few weeks of continuous use) and the temperature control is imprecise (leading to irregular fusion with weak seams). KORWINS works with a motor sized for 1600 W of industrial operation and calibrated thermal control, which distinguishes a professional hot air welder from a generic gun that cannot withstand large-scale work.
What kinds of projects is this hot air welder sized for?
Professional industrial and civil waterproofing work with synthetic membranes. Typical applications include oxidation lagoons, agricultural reservoirs, landfills, tunnels and hydraulic structures with PVC, HDPE or LLDPE geomembrane; sealing of industrial roof systems with PVC and TPO on commercial roofs; manufacturing and repair of tarpaulins for heavy transport and protection covers. For small residential work or occasional hobbyist use, lower-power equipment is available at lower cost; this model is sized for professional contractors with intensive use over years.
Can it be used to repair installed geomembranes with damage and leaks?
Yes — it is the standard tool for repairing installed geomembranes. It allows reinforcement patches in zones with perforation, abrasion from sediment buildup, point damage from impacts during filling, or original seams with failure detected in leak-tightness testing. Standard technique: cut a patch with at least 10 cm overlap around the damage, round the corners to avoid stress concentration, heat the perimeter and press with a roller. For damage that exceeds patching capacity, replace the full section.
Is it compatible with different nozzles depending on the type of weld?
Yes. The head accepts industry-standard nozzles: flat (40 mm standard) for general geomembrane seam, round for point details and small reinforcements, and speed-welding nozzles for extensive linear sealing with PVC or HDPE filler rod. Compatibility with standard nozzles allows progressively expanding equipment by project. To verify compatibility with specific brands, check the head diameter in the data sheet before buying third-party accessories.
Still have questions?
Ask us and we will gladly help you with whatever you need.
| Dimensiones y formato | |
|---|---|
| Product dimensions | 40 x 13 x 13 cm (15.75 x 5.12 x 5.12 in) |
| Gross weight | 3 kg (6.61 lb) |
| Net weight | 2 kg (4.41 lb) |
| Resistencias y rendimiento | |
| Wind pressure | 3000 Pa (0.435 psi) |
| Durabilidad y protección | |
| Temperature range | 40-650°C (104-1202°F) |
| Sistema eléctrico y motor | |
| Voltage | 220V |
| Frequency | 50Hz |
| Power | 1600W |
| Light insulation | 3750V |
| Air volume | 14 m³/h (494.41 ft³/h) |
| Machine: Weight | 3.0 kg |
|---|
Official KORWINS warranty
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