{"product_id":"20a-sparkle-welder","title":"20A Sparkle Welder","description":"\u003cp\u003eAchieve fast, clean, flux-free fusion welds on precious metal wires, chain links, and delicate jewelry findings without discoloration or solder flow. The 20A Sparkle Welder (Spot Welding Machine) utilizes high-frequency plasma tip-discharge arc technology to instantly create a localized molten pool at the joint seam. Powered by a 380W motor with dual coarse and fine current adjustment dials, it delivers precise pulse micro-welding up to 2.0 mm metal thickness on gold, silver, platinum, K-gold, and steel.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose the 20A Sparkle Spot Welder\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eHigh-Frequency Plasma Discharge Arc:\u003c\/b\u003e Operates on the principle of needle-tip electrical discharge, creating instantaneous micro-arc heat that melts and bonds seam edges cleanly without solder powder or messy flux.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eDual Power Adjustment Dials (Coarse \u0026amp; Fine Tuning):\u003c\/b\u003e Independent coarse and fine current regulation knobs allow precise energy calibration to match fine chain links (\u003cspan class=\"math-inline\"\u003e0.2 mm\u003c\/span\u003e) up to heavier \u003cspan class=\"math-inline\"\u003e2.0 mm\u003c\/span\u003e wire gauges.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eHands-Free Instant Foot Switch Control:\u003c\/b\u003e Momentary foot pedal activation initiates the pulse spark instantly while keeping both hands steady on the tweezers and workpiece.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eArgon Shielding Compatibility:\u003c\/b\u003e Can be operated with or without inert shielding gas for cleaner, oxidation-free platinum and gold weld beads.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eHeavy-Duty Steel Casing with Active Ventilation:\u003c\/b\u003e Durable sheet metal construction in high-visibility orange with dual side cooling slots to maintain safe internal operating temperatures during long bench sessions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications \u0026amp; Component Matrix\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003eParameter Metric\u003c\/td\u003e\n\u003ctd\u003eCertified Factory Specification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Designation\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e20A Sparkle Welder \/ Jewelry Pulse Spot Welder\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Output Current\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e20A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Power Input\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e380W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAC 220V, 50Hz \/ 60Hz\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Welding Thickness\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to \u003cspan class=\"math-inline\"\u003e2.0 mm\u003c\/span\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Regulation\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDual Dial Controls (Coarse Adjustable + Fine Tuning)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChassis Dimensions\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cspan class=\"math-inline\"\u003e\u003c\/span\u003e300 × 180 × 140 mm (11.81 × 7.08 × 5.51 in)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Unit Weight\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4.85 kg (10.7 lbs)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor Profile\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIndustrial Powder-Coated Orange\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTungsten Needle Spec\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cspan class=\"math-inline\"\u003e\u003c\/span\u003eØ 1.0 mm Pointed Tungsten Electrode\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Kit Components\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cspan class=\"math-inline\"\u003e\u003c\/span\u003e1× 20A Main Console • 1× Momentary Foot Switch • 1× Welding Tweezers • 1× Needle Holder \u0026amp; Acrylic Stand • 1× Tungsten Needle • 1× Power Cord\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eInstallation \u0026amp; Operating Instructions\u003c\/h3\u003e\n\u003col start=\"1\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eTerminal Connections:\u003c\/b\u003e Connect the tungsten needle holder cable into the red output terminal (\u003cb\u003eSeat Needle \/ Negative\u003c\/b\u003e). Plug the clamping tweezers into the black output terminal (\u003cb\u003eFixture \/ Positive\u003c\/b\u003e).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eElectrode Setup:\u003c\/b\u003e Sharpen the tip of the Ø 1.0 mm tungsten needle on a diamond lap\/grinder. Insert the needle into the holder with approximately \u003cspan class=\"math-inline\"\u003e50 mm\u003c\/span\u003e extension.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003ePower \u0026amp; Current Calibration:\u003c\/b\u003e Turn on the main illuminated power rocker switch. Set the coarse and fine knobs according to metal thickness and alloy conductivity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003ePositioning:\u003c\/b\u003e Securely grip the workpiece with the tweezers. Align the joint interface precisely opposite the tungsten needle point at an optimal air gap of approximately 0.5 mm to 1.0 mm (never let the workpiece touch the needle directly).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eTrigger Weld:\u003c\/b\u003e Tap and immediately release the foot switch to trigger the micro-arc discharge.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"LUXGOLDTOOLS","offers":[{"title":"Default Title","offer_id":49055372902500,"sku":"AWAB0001","price":423.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0747\/2902\/9732\/files\/20a-sparkle-welder-spot-welding-machine-workshop.jpg?v=1787542810","url":"https:\/\/luxgoldtools.com\/products\/20a-sparkle-welder","provider":"LUXGOLDTOOLS","version":"1.0","type":"link"}