{"id":12340,"date":"2026-10-21T09:54:16","date_gmt":"2026-10-21T07:54:16","guid":{"rendered":"https:\/\/lclasers.com\/?p=12340"},"modified":"2026-10-21T09:56:24","modified_gmt":"2026-10-21T07:56:24","slug":"laser-welding-thickness","status":"publish","type":"post","link":"https:\/\/lclasers.com\/en\/2026\/10\/21\/laser-welding-thickness\/","title":{"rendered":"How thick can a laser welder weld?"},"content":{"rendered":"

Short answer:<\/strong> a handheld laser welder of 800 to 1500 W welds 3 to 6 mm of steel in a single pass, depending on power. It performs best on thin and medium sheet (0.5\u20134 mm).<\/p>\n

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Thickness by power<\/h2>\n

Look at two figures on the data sheet: the maximum penetration<\/strong>, the limit in a single pass, and the thickness at 100% duty cycle<\/strong>, what it welds continuously. The second is the figure that matters for production.<\/p>\n<\/div>\n

\"LC-WELD<\/div>\n<\/div>\n
\n\n\n\n\n\n\n\n\n\n
Model<\/th>\nPower<\/th>\nMaximum<\/th>\nContinuous<\/th>\n<\/tr>\n<\/thead>\n
LC-WELD NEO 3.0<\/a><\/td>\n800 W<\/td>\n3 mm<\/td>\n2 mm<\/td>\n<\/tr>\n
LC-WELD NEO 4.0<\/td>\n1200 W<\/td>\n4 mm<\/td>\n3 mm<\/td>\n<\/tr>\n
LC-WELD NEO 5.0<\/td>\n1500 W<\/td>\n5 mm<\/td>\n4 mm<\/td>\n<\/tr>\n
LC-WELD SMART<\/td>\n1500 W<\/td>\n5 mm<\/td>\n4 mm<\/td>\n<\/tr>\n
LC-WELD PRO<\/td>\n1500 W<\/td>\n6 mm<\/td>\n5 mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
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\"Laser<\/div>\n
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What else affects thickness?<\/h2>\n