{"title":"KORWINS","description":"\u003cp\u003eHigh-performance machinery. Korwins develops industrial equipment designed to optimize your processes. Our machinery stands out for its power, precision, and reliability, offering you the most robust tools to take your production to the next level without interruptions.\u003c\/p\u003e","products":[{"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"},{"product_id":"maquina-de-soldadura-de-extrusion","title":"Extrusion welding machine","description":"\u003cp\u003eSealing critical points in HDPE geomembranes—pipe outlets, angled corners, repair patches, and perimeter reinforcements—with filler welding rod that restores full structural integrity, without the limitations of hot air without added material, requires a handheld extrusion welding gun with a powerful motor and integrated air preheating. This extrusion welding machine—also called a \u003cstrong\u003ehandheld extruder\u003c\/strong\u003e, extrusion welder, or extrusion welding gun—is manufactured by MOLTEXO with 3400 W of power, designed for professional geosynthetic installers, chemical tank manufacturers, structural plastic ducts, and critical repairs in civil engineering.\u003c\/p\u003e\n\n\u003ch3\u003eKey Benefits\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndependent dual heating system:\u003c\/strong\u003e hot air prepares the surface of the base material while the filler rod simultaneously melts, ensuring molecular fusion in both areas and eliminating thermal stresses that compromise joint watertightness.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e360° swivel head with adjustable shoe:\u003c\/strong\u003e allows welding at any angle and orientation, a critical condition for tank corners, pipe outlets in plants, and restricted access areas where the operator cannot maneuver freely.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3400 W motor for constant flow:\u003c\/strong\u003e the sized power allows continuous extrusion of filler rod without flow drop during long sessions, a condition for heavy industrial work with multi-meter seams without stopping.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSafe cold start system:\u003c\/strong\u003e the motor does not activate until the melting chamber reaches temperature, preventing internal damage to the polymer and the motor itself, a condition that ruins generic extruders in a few months of careless use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInterchangeable Teflon shoes:\u003c\/strong\u003e different geometries (angle, overlap, fillet) according to the type of joint for the project, expanding versatility without investing in multiple tools.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications and Uses\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSealing critical details in geomembrane installation: pipe outlets, corners, perimeter reinforcements, structural interfaces.\u003c\/li\u003e\n  \u003cli\u003eManufacturing and repair of chemical tanks, water reservoirs, and structural plastic ducts with HDPE or PP.\u003c\/li\u003e\n  \u003cli\u003eRepair of cracks and damage in installed geomembranes with filler rod that restores full structural integrity.\u003c\/li\u003e\n  \u003cli\u003eConstruction of special elements on site: containment ponds, sumps, sub-grade tanks, and custom non-standard elements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eQuality and Durability\u003c\/h3\u003e\n\u003cp\u003eAn inexpensive extruder fails in two ways: the motor cannot withstand continuous extrusion of multi-meter rods (it burns out or loses torque within a few weeks) and the cold start system is absent or deficient (which leads to activations with unmelted material that break the motor). MOLTEXO works with a sized 3400 W motor and a safe cold start, which distinguishes a serious industrial-grade extrusion gun from a generic tool that fails in critical work.\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 extrusion welder, handheld plastic extruder, extrusion welding gun, extruder welding gun, HDPE filler welder.\n  \u003cstrong\u003eIn DR and Caribbean:\u003c\/strong\u003e handheld extruder, extrusion gun, geomembrane extruder, extrusion welder.\n  \u003cstrong\u003eIn other countries:\u003c\/strong\u003e extrusion welder (USA), plastic extrusion gun (USA), extrudeuse manuelle (FR), portátil extruder (LATAM), extrusora gun (LATAM, ES), manual plastic extruder (MX).\n\u003c\/div\u003e","brand":"KORWINS","offers":[{"title":"3400 W","offer_id":52387126575432,"sku":"123765","price":510000.0,"currency_code":"DOP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/9751\/2776\/files\/pistola-extrusion-manual-soldadora-geomembrana-equipo-portatil-santo-domingo.png?v=1780242265"},{"product_id":"maquina-de-soldadura-de-aire-caliente","title":"Hot air welding machine","description":"\u003cp\u003eWelding 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 \u003cstrong\u003ehot air welder\u003c\/strong\u003e, 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.\u003c\/p\u003e\n\n\u003ch3\u003eKey Benefits\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStable airflow under continuous work:\u003c\/strong\u003e The system maintains a constant flow during long shifts, a necessary condition for homogeneous fusion in long seams without thermal variations that compromise watertightness.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrecise adjustable temperature:\u003c\/strong\u003e 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.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBalanced ergonomics for prolonged use:\u003c\/strong\u003e 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.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible with interchangeable nozzles:\u003c\/strong\u003e The head design accepts flat, round, and speed welding nozzles, allowing the tool to adapt to the project's geometric joint type.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConstruction for industrial work:\u003c\/strong\u003e Resistant metal casing against dust and occasional impacts, motor sized for intensive use in construction with continuous loads for years.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications and Uses\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eWelding geomembrane details: corners, pipe junctions, perimeter reinforcements, and areas inaccessible to continuous hot wedge welders.\u003c\/li\u003e\n  \u003cli\u003eSealing synthetic membranes on roofs: PVC, TPO, EPDM on industrial and commercial roofs.\u003c\/li\u003e\n  \u003cli\u003eRepairing installed geomembranes with reinforcement patches and refusion of defective seams.\u003c\/li\u003e\n  \u003cli\u003eManufacturing and repairing transport tarpaulins, inflatable tarpaulins, industrial tents, and custom waterproofing elements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eQuality and Durability\u003c\/h3\u003e\n\u003cp\u003eAn 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.\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 air welder, industrial hot air welding machine, manual heat fusion gun, geomembrane hot air welder, hot air blower for PVC.\n  \u003cstrong\u003eIn DR and Caribbean:\u003c\/strong\u003e pistola de calor, soldadora de aire caliente, soplete industrial, pistola de aire caliente.\n  \u003cstrong\u003eIn other countries:\u003c\/strong\u003e 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).\n\u003c\/div\u003e","brand":"KORWINS","offers":[{"title":"1600 W","offer_id":52387141910856,"sku":"982342","price":63300.0,"currency_code":"DOP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/9751\/2776\/files\/soldadora-blower-manual-geomembranas-plastico.png?v=1780242314"},{"product_id":"manometro-con-aguja","title":"Pressure gauge with needle","description":"\u003cp\u003eVerifying the integrity of every meter of seam in installed geomembrane to certify the watertightness of a dam, landfill, or leaching cell under environmental standards requires a needle pressure gauge with a metal body, clear dial reading, and robust construction for continuous field use. This needle pressure gauge —also called an \u003cstrong\u003eair pressure tester\u003c\/strong\u003e, weld channel tester, or air pressure gauge tester— is manufactured by KORWINS with a metal body, stainless steel needle, and ergonomic wooden handle, designed for geomembrane installation contractors, hydraulic works supervisors, and environmental quality control technicians.\u003c\/p\u003e\n\n\u003ch3\u003eKey benefits\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustrial-grade metal body:\u003c\/strong\u003e robust construction sized for continuous field use, ambient humidity, quarry dust, and rough handling in sanitary landfills and mining, without losing calibration accuracy.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrecision stainless steel insertion needle:\u003c\/strong\u003e tip sized to penetrate cleanly into the air channel of the dual weld without compromising the material structure, a critical condition for non-destructive seam testing.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClear, accurate dial reading:\u003c\/strong\u003e visible scale that allows pressure monitoring throughout the test cycle and immediate detection of any pressure drop indicative of a leak, an auditable condition for project certification.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eErgonomic wooden handle:\u003c\/strong\u003e comfortable, firm grip that facilitates the manual force needed for needle insertion and handling during continuous testing cycles on long seams.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnection hose with quick coupling:\u003c\/strong\u003e high visibility and direct connection to portable air pumps or manual compressors, a condition for autonomous field operation without complex pneumatic equipment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical applications and uses\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eQuality control during geomembrane installation: verifying watertightness meter by meter on dual-seam welds.\u003c\/li\u003e\n  \u003cli\u003eEnvironmental auditing of sanitary landfills and leaching cells under ISO 14001 or equivalent certification.\u003c\/li\u003e\n  \u003cli\u003eVerification of waterproofing in dams, reservoirs, artificial lakes, and large-format agricultural water storage.\u003c\/li\u003e\n  \u003cli\u003eInspection of mining projects with leaching cells and chemical containment using structural HDPE or LLDPE.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eQuality and durability\u003c\/h3\u003e\n\u003cp\u003eAn economical field pressure gauge fails on two fronts: the initial calibration loses reliability after a few months of use (which produces false readings that invalidate later audits) and the insertion needle is made of low-grade steel that bends or rusts (which ruins the test on the first intensive use). KORWINS works with a calibrated metal body and a stainless steel needle, which separates a quality-control tester certifiable for auditing from a basic pressure gauge that certifies nothing.\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 air pressure gauge tester, weld channel pressure tester, geomembrane watertightness tester, needle pressure test kit, dual seam pressure tester.\n  \u003cstrong\u003eIn DR and Caribbean:\u003c\/strong\u003e manómetro de aguja, probador de soldadura, manómetro para geomembrana, tester de costura.\n  \u003cstrong\u003eIn other countries:\u003c\/strong\u003e air pressure tester (USA), needle pressure gauge (USA), dual seam tester (USA), tester soldadura HDPE (LATAM), manómetro de aguja (LATAM, ES), probador de canal de aire (MX).\n\u003c\/div\u003e","brand":"KORWINS","offers":[{"title":"Standard","offer_id":52455861518664,"sku":"126342","price":57000.0,"currency_code":"DOP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/9751\/2776\/files\/manometro-prueba-estanqueidad-geomembrana-rd.png?v=1771612888"},{"product_id":"maquina-de-coser-portatil","title":"Portable sewing machine","description":"\u003cp\u003eClosing woven polypropylene, kraft paper, mesh, jute, and industrial packaging bags in the loading area, weighbridge, or warehouse without moving heavy loads to a fixed sewing station requires a lightweight portable machine with chain stitch and reliable feed for slippery bags. This portable sewing machine—also called a \u003cstrong\u003ebag closer\u003c\/strong\u003e, bag closer, or industrial stitcher—is manufactured by KORWINS with a 210 W pure copper motor and aluminum alloy housing, designed for intensive professional use in the agri-food industry, hardware stores, agrochemical companies, supply warehouses, and construction firms that dispatch bulk product.\u003c\/p\u003e\n\u003ch3\u003eKey benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e210 W pure copper motor:\u003c\/strong\u003e wound with real copper (not aluminum) to maintain constant torque and withstand continuous shifts without losing power, a key condition for dispatch operations of several hundred bags per day.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic thread cut at the end:\u003c\/strong\u003e when the machine is separated from the bag, the thread is cut automatically at the outlet, eliminating the step of cutting with scissors and significantly accelerating the cycle per bag.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle-thread chain stitch:\u003c\/strong\u003e firm closure for transport that opens easily at destination by pulling the thread end, a classic condition of industrial packaging where the recipient unstitches the bag to empty the contents.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAluminum alloy housing:\u003c\/strong\u003e lightweight construction (3 kg) resistant to dust and impact from the industrial environment—rice mills, cement warehouses, agrochemical plants with continuous dust—with a careful balance for one-hand operation without tiring the operator.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed system calibrated for slippery materials:\u003c\/strong\u003e the geometry of the presser foot and feed dogs is dimensioned to maintain traction on woven polypropylene bags (which tend to slip in generic machines), guaranteeing a straight stitch line without skips.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated oil lubrication:\u003c\/strong\u003e the lubrication system reaches the internal friction points, extending the service life of cams, connecting rod, and needle in intensive use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTypical applications and uses\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAgri-food industry: closing bags of rice, beans, sugar, flour, corn, coffee, cocoa, and grains in general.\u003c\/li\u003e\n\u003cli\u003eAgrochemical companies and hardware stores: fertilizer, manure, certified seed, urea, sulfate, and other chemical products in bulk bags.\u003c\/li\u003e\n\u003cli\u003eConstruction: cement, mortar, rubble, and granular materials in bags.\u003c\/li\u003e\n\u003cli\u003eWarehouses and distributors: bulk packaging of heterogeneous products for dispatch and wholesale.\u003c\/li\u003e\n\u003cli\u003eCourier and logistics: closing of mailbags, courier sacks, and non-woven packaging.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eQuality and durability\u003c\/h3\u003e\n\u003cp\u003eAn economical portable bag closer fails at two points: the low-amperage motor cannot withstand continuous shifts (it heats up and loses power after a few hours) and the feed system gives way on slippery bags (producing skips in the stitch line and unsafe closures). This machine works with a 210 W pure copper motor sized for continuous use and a feed system calibrated specifically for woven polypropylene. It is the difference between a professional intensive-operation closer and a generic machine that fails in an agri-industrial warehouse on the second shift.\u003c\/p\u003e\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 \u003cstrong\u003eTechnical:\u003c\/strong\u003e portable bag closer, cerradora de sacos portátil, máquina cerradora de sacos, cosereta industrial, máquina selladora de sacos. \u003cstrong\u003eIn DR and Caribbean:\u003c\/strong\u003e cosedora de sacos, cosedora portátil, máquina de coser sacos, cerradora de quintales, cosedora de costales. \u003cstrong\u003eIn other countries:\u003c\/strong\u003e bag closer (USA), bag stitcher (USA), portable bag sewing machine (USA), cerradora de costales (MX), cosedora de sacos (CO), cerradora industrial (ES).\u003c\/div\u003e","brand":"KORWINS","offers":[{"title":"Corded (220 V)","offer_id":52455273791816,"sku":"349832","price":54000.0,"currency_code":"DOP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/9751\/2776\/files\/imagenes-2026-05-31T174300.447.png?v=1780242214"},{"product_id":"desenrollador-de-rodillos-para-geomembrana","title":"Roller unwinder","description":"\u003cp\u003eRolling out heavy HDPE geomembrane rolls over prepared ground —without the liner scratching against the soil, stones or the trench edge, and without wearing out the crew dragging the material by sheer force— calls for a rolling support point that reduces friction during deployment. This roller unwinder —also called a \u003cstrong\u003eroll feeder\u003c\/strong\u003e or deployment guide roller— is a \u003cstrong\u003emotor-free\u003c\/strong\u003e piece of KORWINS equipment, with a 710 × 540 mm aluminum frame and 450 mm rollers (two polyurethane and two stainless steel), designed to lay geomembrane, geotextile, geocomposite and drainage sheets with less effort and without damaging the liner surface.\u003c\/p\u003e\n\n\u003ch3\u003eKey benefits\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLess effort for the crew:\u003c\/strong\u003e the rollers spin freely and the liner advances with minimal push, avoiding the brute-force dragging that tires the crew and throws the layout off.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProtects the liner against abrasion:\u003c\/strong\u003e the material passes over smooth rollers instead of rubbing on soil, gravel or the trench edge, eliminating scratches and micro-perforations that compromise watertightness.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePolyurethane and stainless steel rollers:\u003c\/strong\u003e they combine a soft grip that doesn't mark the membrane with the rigidity of stainless steel, and withstand jobsite weather.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSturdy aluminum structure:\u003c\/strong\u003e a light but rigid frame, easy to reposition along the installation front, with good behavior against water and dust.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo motor, no maintenance:\u003c\/strong\u003e it needs no electricity or fuel; zero consumables and ready to use in the open field.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications and typical uses\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eLaying HDPE\/LLDPE geomembrane in ponds, reservoirs, landfills and canals.\u003c\/li\u003e\n  \u003cli\u003eDeploying geotextile, drainage geocomposite and protection sheets.\u003c\/li\u003e\n  \u003cli\u003eFeeding the liner toward the wedge or extrusion welding area.\u003c\/li\u003e\n  \u003cli\u003eControlled movement of heavy rolls on slopes and the floors of hydraulic works.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eQuality and durability\u003c\/h3\u003e\n\u003cp\u003eA cheap roll feeder fails when the frame flexes under the weight of the roll, when the bearings seize up with dust, or when the roller coating peels off and starts marking the liner. This equipment is built with a reinforced aluminum frame, thick-walled rollers with smooth spin and a water- and dust-resistant finish, conditions to withstand repeated jobsite use without becoming a disposable consumable. Reference dimensions: 710 × 540 mm frame (28 × 21 in) and 450 mm roller (17.7 in).\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 geomembrane unwinder, roll feeder, deployment guide roller, roller cradle, geomembrane roller stand.\n  \u003cstrong\u003eIn the DR and the Caribbean:\u003c\/strong\u003e liner unwinder, roller for pulling geomembrane, roller guide for liner.\n  \u003cstrong\u003eIn other countries:\u003c\/strong\u003e geomembrane unwinder (LATAM), geomembrane pull roller \/ film roller (USA), dévidoir à géomembrane (FR).\n\u003c\/div\u003e","brand":"KORWINS","offers":[{"title":"71 x 54 cm (28 x 21 in)","offer_id":53210608369992,"sku":"681540","price":0.0,"currency_code":"DOP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/9751\/2776\/files\/imagenes-2026-05-31T160852.806.png?v=1780236576"},{"product_id":"pinza-de-arrastre-autoblocante-para-geomembrana","title":"Self-locking pulling clamp","description":"\u003cp\u003ePositioning, tensioning and dragging heavy HDPE geomembrane sheets during installation —without your hand slipping off the edge of the liner or damaging the material with makeshift fixes— calls for a mechanical grip that bites the liner firmly and won't let go under load. This pulling clamp —also called a \u003cstrong\u003epuller\u003c\/strong\u003e, grip or jaw for geomembrane— is a KORWINS tool with a \u003cstrong\u003eself-locking\u003c\/strong\u003e structure and knurled pressure rollers that firmly hold sheets up to 10 mm thick, with a self-locking mechanism designed for a highly reliable grip while the material is pulled.\u003c\/p\u003e\n\n\u003ch3\u003eKey benefits\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSelf-locking grip:\u003c\/strong\u003e the harder you pull, the more it bites; the self-locking mechanism keeps the liner from slipping out under load.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKnurled pressure rollers:\u003c\/strong\u003e the knurling spreads the pressure and grips firmly without piercing or tearing the edge of the membrane.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible up to 10 mm thick:\u003c\/strong\u003e works for thin and heavy-gauge geomembranes, as well as geotextiles and composite sheets within range.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrecise tensioning and alignment:\u003c\/strong\u003e lets you pull sheets to align the overlaps before welding, improving joint quality.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMore safety and less fatigue:\u003c\/strong\u003e replaces the hand grip —slippery and injury-prone— with a firm, repeatable mechanical hold.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications and typical uses\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDragging and positioning HDPE\/LLDPE geomembrane sheets in ponds, reservoirs and landfills.\u003c\/li\u003e\n  \u003cli\u003eTensioning and aligning overlaps before wedge or extrusion welding.\u003c\/li\u003e\n  \u003cli\u003eHandling geotextile and geocomposites during deployment.\u003c\/li\u003e\n  \u003cli\u003eSupport on slopes to hold and reposition the liner without it sliding.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eQuality and durability\u003c\/h3\u003e\n\u003cp\u003eA cheap puller fails when the knurling wears down and starts slipping, when the locking mechanism gives way under tension, or when a poorly designed jaw leaves the liner marked or perforated. This clamp is fitted with knurled pressure rollers and a calibrated self-locking system to hold firmly without damaging the material, conditions for repeated jobsite use with safety for the crew and for the integrity of the membrane.\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 geomembrane puller, pulling clamp, self-locking jaw, pulling grip.\n  \u003cstrong\u003eIn the DR and the Caribbean:\u003c\/strong\u003e grip for hauling geomembrane, clamp for pulling liner, drag clamp.\n  \u003cstrong\u003eIn other countries:\u003c\/strong\u003e puller \/ liner puller (USA), pince de tirage (FR), sheet-pulling clamp (LATAM).\n\u003c\/div\u003e","brand":"KORWINS","offers":[{"title":"Hasta 10 mm (0.4 in)","offer_id":53210608599368,"sku":"681027","price":0.0,"currency_code":"DOP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/9751\/2776\/files\/imagenes-2026-05-31T174804.792_c16d11ef-e8f6-438c-b0c9-e764d293e5a0.png?v=1780242532"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/9751\/2776\/collections\/imagenes_-_2026-06-12T160250.666.png?v=1781273766","url":"https:\/\/dodom.com\/en\/collections\/korwins.oembed","provider":"Dodom","version":"1.0","type":"link"}