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.

Also known as: Technical: hot air welder, industrial hot air welding machine, manual heat fusion gun, geomembrane hot air welder, hot air blower for PVC. In DR and Caribbean: pistola de calor, soldadora de aire caliente, soplete industrial, pistola de aire caliente. In other countries: hot air welder (USA), heat gun welder (USA), pistolet à air chaud (FR), pistola de aire caliente (LATAM, ES), soldador por aire caliente (LATAM), heat welder (USA).

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)

KORWINS® Hot air welding machine

1600 W

Features

Packaging dimensions

KORWINS^® Hot air welding machine