The Tweco Classic No. 4 MIG Gun (SKU: 10401102) is a premier choice for industrial welding applications requiring robust performance and reliability. Known in the industry as a standard-bearer for air-cooled MIG welding, the Classic 4 series is engineered to handle high-amperage welding cycles without compromising on maneuverability or component life. This specific model, the 412-3545, comes equipped with a 12-foot cable assembly, offering an optimal balance between reach and consistent wire feeding performance.<\/p>\n
Rated at 400 Amps at a 60% duty cycle with CO2 gas (or 200 Amps at 60% with mixed gases), this gun is designed for heavy fabrication, structural steel, and manufacturing environments. It features a standard Tweco backend connection, ensuring seamless integration with wire feeders and power sources that utilize the Tweco style adapter. The gun is pre-configured with a liner and contact tip setup for .035″ to .045″ (0.9mm – 1.2mm) wire diameters, making it ready for immediate deployment in common steel welding tasks.<\/p>\n
Maintenance and consumable replacement are straightforward, as the Classic 4 utilizes the widely available Tweco 14 Series contact tips, 24 Series gas nozzles, and 54 Series gas diffusers. The metal-jacketed conductor tube and heavy-duty handle construction provide exceptional resistance to impact and heat, ensuring a long service life even in the most demanding shop conditions. Whether replacing an aging fleet or outfitting a new station, the Tweco Classic 4 remains a top-tier specification for professional operations.<\/p>\n","protected":false},"excerpt":{"rendered":"Heavy-Duty Industrial MIG Gun The Tweco Classic No. 4 MIG Gun (SKU: 10401102) is a premier choice for industrial welding applications requiring robust performance and reliability. Known in the industry as a standard-bearer for air-cooled MIG welding, the Classic 4 series is engineered to handle high-amperage welding cycles without compromising on maneuverability or component life…. View Article<\/a>","protected":false},"featured_media":0,"template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[2042,2043],"product_tag":[],"class_list":{"0":"post-1781948","1":"product","2":"type-product","3":"status-publish","5":"product_cat-mig-accessories","6":"product_cat-mig-guns","7":"pa_amps-400amp","8":"pa_back-end-tweco","9":"pa_brand-tweco","10":"pa_duty-cycle-60-400a","11":"pa_item-mig-gun","12":"pa_length-12-ft","13":"pa_packaging-description-pack-of-1","14":"pa_wire-size-0-035-0-045","16":"first","17":"onbackorder","18":"taxable","19":"shipping-taxable","20":"purchasable","21":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/josefgases.com\/stage\/wp-json\/wp\/v2\/product\/1781948","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/josefgases.com\/stage\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/josefgases.com\/stage\/wp-json\/wp\/v2\/types\/product"}],"wp:attachment":[{"href":"https:\/\/josefgases.com\/stage\/wp-json\/wp\/v2\/media?parent=1781948"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/josefgases.com\/stage\/wp-json\/wp\/v2\/product_brand?post=1781948"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/josefgases.com\/stage\/wp-json\/wp\/v2\/product_cat?post=1781948"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/josefgases.com\/stage\/wp-json\/wp\/v2\/product_tag?post=1781948"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}