{"product_id":"maquina-de-soldadura-de-cuna-caliente","title":"Hot wedge welding machine","description":"\u003cp\u003eWelding HDPE or LLDPE geomembranes in large-scale waterproofing projects where the watertight integrity of every meter of seam is audited with pressure testing and required by contractual specification, without resorting to manual sealing with a hot air gun that wastes days on large plots, requires a hot wedge welder with motorized traction, calibrated thermal control, and an air channel for subsequent testing. This hot wedge welding machine—also known as a \u003cstrong\u003ehot wedge welder\u003c\/strong\u003e, double seam welder, or traction heat fuser—is manufactured by KORWINS in two power ratings (800 W and 1800 W), designed for geosynthetic contractors, professional waterproofers, and hydraulic projects with watertightness auditing.\u003c\/p\u003e\n\n\u003ch3\u003eKey Benefits\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDouble seam with air channel for auditing:\u003c\/strong\u003e the wedge melts two parallel lines, leaving a central channel that is subsequently pressurized with a needle manometer to verify the watertightness of the entire seam, a condition audited in professional hydraulic projects and contracts with mining companies or environmental authorities.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMotorized constant advance traction:\u003c\/strong\u003e the roller system pulls the machine over the geomembrane at a uniform calibrated speed, ensuring homogeneous thermal exposure and eliminating human speed variability, a condition for consistent quality welding.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDigital or analog thermal control:\u003c\/strong\u003e calibrated system to maintain wedge temperature within the melting range of the specific material (HDPE 2-2.5 mm requires a different range than thin LLDPE), a critical condition for joints with mechanical resistance of the original sheet.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRobust construction for field work:\u003c\/strong\u003e resistant alloy casing against dust, ambient humidity, and rough handling in quarries or landfills, sized for years of continuous intensive use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTwo power ratings for project scale:\u003c\/strong\u003e 800 W for welding light geomembrane (1-1.5 mm in agricultural applications and small reservoirs) and 1800 W for heavy structural HDPE (2-2.5 mm in dams, landfills, and mining).\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications and Uses\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eInstallation of geomembrane in dams, agricultural reservoirs, artificial lakes, and large-scale water storage.\u003c\/li\u003e\n  \u003cli\u003eSealing of sanitary landfills and landfill cells with environmental auditing.\u003c\/li\u003e\n  \u003cli\u003eWaterproofing of tunnels, wet foundations, and underground hydraulic retention works.\u003c\/li\u003e\n  \u003cli\u003eCovering green roofs, landscaping, and industrial pools with large-format membrane.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eQuality and Durability\u003c\/h3\u003e\n\u003cp\u003eAn economical wedge welder fails in two areas: the wedge temperature is not stable during advancement (which produces areas with insufficient melting that fail the pressure test) and the motorized traction system gives out after a few months of use (which forces the operator back to manual advancement with inconsistent quality). KORWINS works with calibrated thermal control and robust motorized traction, which separates an auditable project hot wedge welder from a generic machine that produces dubious seams.\u003c\/p\u003e\n\n\u003cdiv style=\"background-color: #F3F6F3; padding: clamp(14px, 4vw, 18px); margin-top: 20px; font-size: 0.9em; color: #555555; border-radius: 8px;\"\u003e\n  \u003cstrong style=\"color: #006902;\"\u003eAlso known as:\u003c\/strong\u003e\n  \u003cstrong\u003eTechnical:\u003c\/strong\u003e hot wedge welder, wedge welder, wedge heat fuser, double seam welder with air channel, dual track wedge welder.\n  \u003cstrong\u003eIn DR and Caribbean:\u003c\/strong\u003e soldadora de cuña, soldadora geomembrana, máquina soldar lonas, soldadora impermeabilización.\n  \u003cstrong\u003eIn other countries:\u003c\/strong\u003e hot wedge welder (USA), wedge welder (USA), hot wedge welder (LATAM), thermal wedge welder (ES), HDPE welding machine (LATAM), wedge heat sealer (MX).\n\u003c\/div\u003e","brand":"KORWINS","offers":[{"title":"800 W","offer_id":52387109667144,"sku":"983422","price":300000.0,"currency_code":"DOP","in_stock":false},{"title":"1800 W","offer_id":52387109699912,"sku":"232412","price":600000.0,"currency_code":"DOP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/9751\/2776\/files\/maquina-soldadora-geomembrana-cuna-caliente-rd.png?v=1771612912","url":"https:\/\/dodom.com\/en\/products\/hot-wedge-welding-machine","provider":"Dodom","version":"1.0","type":"link"}