{"product_id":"duoyi-spot-welder-dent-puller-3800a-110v-compact-6-mode-spot-stud-welder-for-0-6-1-5mm-steel-low-heat","title":"DUOYI Spot Welder Dent Puller 3800A 110V — Compact 6-Mode Spot Stud Welder for 0.6–1.5mm Steel, Low Heat","description":"\u003cp\u003e\u003cstrong\u003eDUOYI Spot Welder Dent Puller is a compact, high-current stud welder designed to weld tiny studs and pull dents on iron car body panels without harming paint or back coating.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis DUOYI dent puller\/welder combines a 3800A high-current output with intelligent microcomputer control to deliver precise, low-consumable spot welding for auto body repair. It supports six welding modes, both automatic and manual operation, and includes welding tongs, pullers, and multiple accessories so you can weld and pull with minimal setup. Built with a cold-rolled steel housing, pure copper cables, and active cooling plus overheat protection, it’s engineered for frequent workshop use on single-sided steel panels 0.6–1.5 mm thick.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this machine create smaller welding spots and protect paint?\u003c\/h3\u003e\n\n\u003cp\u003eThe DUOYI unit uses intelligent induction welding that concentrates current in a very small area, producing minimal weld bead and low thermal spread. That reduces the chance of scorching paint or burning through coatings on the back side of the panel when used correctly.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e3800A super-large current for short, powerful welds\u003c\/li\u003e\n  \u003cli\u003ePrecise microcomputer timing to limit heat-affected zones\u003c\/li\u003e\n  \u003cli\u003eDesigned for single-sided welding on 0.6–1.5 mm steel panels\u003c\/li\u003e\n  \u003cli\u003eLow consumable use: smaller studs and less filler material\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat welding and pulling modes are available and when should I use them?\u003c\/h3\u003e\n\n\u003cp\u003eDUOYI offers six welding patterns—triangular, round, OT, wave line, carbon rod, and single-sided spot—so you can match the weld style to the dent size and metal thickness. The unit also switches between auto and manual welding for repeatable pulls or custom single shots.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eAuto welding for consistent, repeatable stud attachment\u003c\/li\u003e\n  \u003cli\u003eManual mode for fine control on delicate panels\u003c\/li\u003e\n  \u003cli\u003eWave line and OT modes for elongated or irregular dents\u003c\/li\u003e\n  \u003cli\u003eCarbon rod option for different electrode needs and finishes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the machine avoid overheating during long jobs?\u003c\/h3\u003e\n\n\u003cp\u003eThe spot welder includes active cooling and a built-in overheat protection system that pauses operation if temperatures rise too high. Once the transformer cools, the unit automatically resets and resumes work, minimizing downtime and protecting electronics.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eHigh-efficiency radiator and ventilation openings for fast heat dissipation\u003c\/li\u003e\n  \u003cli\u003eThermal alarm indicator alerts before damage occurs\u003c\/li\u003e\n  \u003cli\u003eAutomatic shutdown and restart when safe temperature returns\u003c\/li\u003e\n  \u003cli\u003eDurable cold-rolled steel body for stable heat management\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat accessories and build features improve durability and usability?\u003c\/h3\u003e\n\n\u003cp\u003eThe kit ships with welding tongs, pulling tools, and a selection of studs so you can begin dent removal immediately. Robust construction and high-quality materials—like pure copper cables and a reinforced transformer—extend service life and maintain consistent performance.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eWelding tongs and puller included for combined weld-and-pull workflows\u003c\/li\u003e\n  \u003cli\u003ePure copper input\/output cables for low resistance and less heat\u003c\/li\u003e\n  \u003cli\u003eCold-rolled steel housing resists wear and corrosion in workshops\u003c\/li\u003e\n  \u003cli\u003eHigh-frequency E-type transformer for steady, powerful output\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? This DUOYI spot welder dent puller is tailored for professional auto body technicians, hobbyist restorers, and small-shop mechanics who work primarily on ferrous (iron\/steel) panels and need precise, low-impact spot welding for dent pulling. It’s ideal when you want strong, clean welds with minimal consumables and reliable cooling protection during extended repair sessions. Note: this unit is intended for iron\/steel sheet metal only and requires basic welding knowledge and safety precautions when operating.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can this welder be used on aluminum panels?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. This DUOYI spot welder is designed for iron\/steel panels only and is not suitable for aluminum.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What panel thickness can it weld?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Recommended single-sided welding thickness is 0.6–1.5 mm for optimal results.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"DUOYI","offers":[{"title":"Default Title","offer_id":48079965225118,"sku":"B097QQTF2C","price":394.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/duoyi-front-control-panel.jpg?v=1785777353","url":"https:\/\/northtrailauto.ca\/products\/duoyi-spot-welder-dent-puller-3800a-110v-compact-6-mode-spot-stud-welder-for-0-6-1-5mm-steel-low-heat","provider":"North Trail Auto","version":"1.0","type":"link"}