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The geomembrane welder, known as a geomembrane welding machine, is a specialized tool creates durable, watertight seals by joining geomembrane sheets, ensuring the integrity of liners in applications like landfills, water reservoirs, and mining operations.
Geomembrane welders made by BPM Geosynthetics consist of eight series, including PVC/TPO waterproofing membrane welders, geomembrane (waterproofing sheet) welders, banner/tarpaulin welders, plastic floor welders, plastic extrusion welders, hot air guns, and geomembrane testing tools. These machines are extensively utilized in roofing and garage waterproofing projects, as well as in tunnels, subways, cultivation, water conservancy, refuse landfills, and chemical and mining sewage treatment initiatives. They are also ideal for various industrial waterproof and anti-seepage applications. With high-tech quality and professional service, we are committed to continuously providing the best products to customers worldwide. Our dedication ensures reliability and performance in every project we undertake.
A geomembrane welder is a precision-engineered device designed to fuse geomembrane sheets, creating seamless, impermeable seals that prevent fluid or gas leakage. Utilizing advanced thermal fusion techniques—hot wedge, hot air, or extrusion welding—the geomembrane welder joins materials like high-density polyethylene (HDPE), polyvinyl chloride (PVC), and linear low-density polyethylene (LLDPE). Models such as the BPM800/800D and BPM900/900D from BPM Geosynthetics feature compact, lightweight designs with hot-wedge structures, delivering seams with ≥85% of the base material’s tensile strength. With adjustable temperatures up to 450°C and welding speeds of 0.5–5 m/min, the geomembrane welder is tailored for applications in tunnels, water conservancy, and construction projects. Its compliance with standards like ASTM D8468 ensures reliability in demanding environments, making it an essential tool for geosynthetic installations.
| No | Specification | Welder BPM800/800D | Welder BPM900/900D | Hand Extruder BPM600 | Hand Extruder BPM610A | Hot Air Blower BPM1600S |
|---|---|---|---|---|---|---|
| 1 | Voltage | 230V | 230V | 230V | 230V | 230V |
| 2 | Frequency | 50/60Hz | 50/60Hz | 50/60Hz | 50/60Hz | 50/60Hz |
| 3 | Power / Extruding Power | 800W | 1800W | Drive Motor 800W | Drive Motor 1300W | 1600W |
| 4 | Hot Air Drive Power | — | — | 1600W | 1600W | — |
| 5 | Welding Speed | 0.5–5 m/min | 0.5–5 m/min | 2 kg/h | 2 kg/h | — |
| 6 | Heating Temp. / Wind Temp. | 0–450℃ | 0–450℃ | 20–600℃ / 200–300℃ | 20–600℃ / 200–300℃ | 20–600℃ (steplessly adjustable) |
| 7 | Material Thickness | 0.2–1.5mm | 1.0–3.0mm | — | — | — |
| 8 | Overlap Width | 10cm | 12cm | — | — | — |
| 9 | Welding Width | 12.5mm ×2 / Cavity: 12mm | 15mm ×2 / Cavity: 15mm | — | — | — |
| 10 | Seam Strength | ≥85% base material | ≥85% base material | — | — | — |
| 11 | Welding Rod Diameter | — | — | φ3.0–3.5mm | φ3.0–4.0mm | — |
| 12 | Air Volume | — | — | — | — | Max 180L/min |
| 13 | Air Pressure | — | — | — | — | 2600Pa |
| 14 | Noise Level | — | — | — | — | < 65 dB |
| 15 | Weight | 5kg | 13kg | 6.5kg | 7.0kg | 1.05kg (with 3m cable) |
| 16 | Insulation Class | Class II | Class II | — | — | — |
The geomembrane welder performs several critical functions that enhance the reliability and efficiency of geosynthetic containment systems. Below are its primary roles:
The geomembrane welder fuses overlapping geomembrane sheets to form watertight seams, preventing leakage in applications like landfill liners and water reservoirs. These seams achieve high tensile strength, ensuring long-term durability under environmental stress.
The innovative pressure adjustment mechanism allows for fine-tuning based on the material and thickness of the membrane, ensuring optimal welding results.
Geomembrane welders offer multiple welding methods, including hot wedge, hot air, and extrusion, allowing operators to select the optimal technique for specific materials and project conditions, enhancing versatility.
Advanced geomembrane welders, like the BPM900D, feature mechatronics integration for automatic crawling on tilted, vertical, or inverted surfaces, reducing manual labor and ensuring consistent seam quality.
Equipped with data acquisition systems, the geomembrane welder records welding parameters such as temperature, speed, and pressure, enabling post-weld analysis to verify compliance with standards like DVS 2225-4 and ASTM D8468.
Geomembrane welders are available in various types, each designed for specific applications, material thicknesses, and project scales. Below are the primary types offered by BPM Geosynthetics:
Hot wedge welders, such as the BPM800/800D (800W, 0.2–1.5 mm) and BPM900/900D (1800W, 1.0–3.0 mm), use a heated metal wedge to fuse geomembrane sheets. With welding widths of 12.5–15 mm and overlap widths of 10–12 cm, these geomembrane welders are ideal for HDPE, LLDPE, and PVC in large-scale projects like water conservancy and landfills. The BPM900D’s digital display ensures precise control for thicker materials, with speeds up to 5 m/min and temperatures reaching 450°C.
Hand extruders, like the BPM600 (800W extruding power) and BPM610A (1300W extruding power), deliver molten plastic through a heated barrel for repairs and detailed seams. Operating at 200–300°C with a welding speed of 2 kg/h, these geomembrane welders use welding rods (3.0–4.0 mm diameter) compatible with HDPE and polypropylene (PP), making them suitable for mining and sewage treatment applications.
The BPM1600S hot air blower (1600W, 20–600°C) uses a controlled stream of heated air to bond geomembrane surfaces. Weighing only 1.05 kg with an air volume of 180 L/min and air pressure of 2600 Pa, this geomembrane welder excels in detailed welding of PVC and ethylene vinyl acetate (EVA) for roofing and aquaculture, offering portability and precision with a noise level below 65 dB.
The geomembrane welder offers numerous advantages that enhance project efficiency, durability, and environmental compliance:
Geomembrane welders produce seams with ≥85% of the base material’s tensile strength, ensuring reliable containment under mechanical loads, chemical exposure, and environmental stress.
Using electric heating fusion technology, the geomembrane welder operates without toxic emissions or odors, aligning with environmental regulations and supporting sustainable practices.
With welding speeds up to 5 m/min and automated features, geomembrane welders streamline installation processes, reducing labor costs and project timelines while maintaining high-quality standards.
The geomembrane welder’s ability to handle various materials and thicknesses makes it adaptable to diverse projects, from landfill liners to aquaculture ponds, ensuring broad applicability.
By minimizing field seams and enabling rapid, precise installation, geomembrane welders reduce overall project costs, offering a high return on investment for both small and large-scale applications.
The geomembrane welder is compatible with a wide range of thermoplastic geomembrane materials, ensuring flexibility across various project requirements:
The geomembrane welder supports material thicknesses from 0.2 mm to 3.0 mm, accommodating both thin, flexible liners and robust, heavy-duty sheets.
Operating a geomembrane welder requires precision, safety, and adherence to manufacturer guidelines to achieve optimal results. Below are the key steps for effective operation:
Ensure geomembrane surfaces are clean, dry, and free of debris using a dry cloth or mild cleaner. Maintain an overlap of 10–12 cm for hot wedge welding (e.g., BPM800/900) or 15 cm for extrusion welding to ensure strong seams.
Configure the geomembrane welder’s temperature (e.g., 280–420°C for HDPE, 200–300°C for PVC) and speed (0.5–5 m/min) based on material thickness and ambient conditions. For extruders, load welding rods (3.0–4.0 mm diameter) compatible with the geomembrane material.
Align the geomembrane sheets and guide the welder along the overlap. For hot wedge welders, apply consistent pressure (100–1000 N); for hot air blowers, maintain steady air flow at 180 L/min. Ensure uniform movement to avoid overheating or weak seams.
Perform non-destructive tests, such as air channel testing (ASTM D7177) or vacuum testing, to verify seam integrity. Conduct peel and shear tests to ensure compliance with ASTM D8468, confirming seam strength ≥85% of the base material.
Operators must wear protective gear, including gloves, safety goggles, and heat-resistant clothing. Regularly calibrate the geomembrane welder to prevent malfunctions and ensure stable operation, particularly in extreme weather conditions (-10°C to 40°C).
The geomembrane welder is a versatile tool employed across diverse industries to ensure reliable containment and waterproofing. Below are its primary applications:
Geomembrane welders create impermeable seams for HDPE liners in landfills, preventing leachate from contaminating soil and groundwater, ensuring compliance with regulations like the U.S. EPA’s RCRA.
In reservoirs, canals, and irrigation ponds, geomembrane welders join liners to minimize seepage, enhancing water storage efficiency for agriculture and municipal systems.
Geomembrane welders fuse liners for heap leach pads and tailings storage facilities, containing hazardous chemicals and protecting the environment from contamination.
Hot air blowers weld EVA and PVC liners for fish and shrimp ponds, maintaining water quality and preventing soil contamination, boosting aquaculture productivity.
Geomembrane welders ensure waterproofing in underground structures by joining liners that protect against water ingress, enhancing structural longevity.
Geomembrane welders create liners for wastewater lagoons, preventing groundwater contamination and supporting environmental safety in treatment facilities.
Hot air blowers weld PVC liners for waterproof roofing systems, providing durable protection against moisture in commercial and residential buildings.
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