The Tweco 21-50 (Stock No. 1210-1110) is a standard MIG welding nozzle designed for precision and durability in light to medium-duty applications. Engineered to handle welding currents up to 180 amperes, this nozzle is a staple for professionals utilizing Tweco MIG guns. The 21-50 features a 1\/2-inch (12.7mm) bore size, which provides excellent gas coverage for standard welding operations, ensuring a clean and stable arc. This specific model offers a recessed contact tip relationship, positioning the tip 0.125″ to 0.156″ back from the nozzle edge. This recess is particularly advantageous for higher heat applications where a longer electrical stick-out is required, or when the nozzle might come into contact with the workpiece during tack or spot welding.<\/p>\n
Tweco’s renowned 3-piece nozzle design sets the standard for longevity and performance. The assembly consists of a nozzle housing cut and formed from 122 DHP copper alloy tubing, known for its superior thermal conductivity and resistance to spatter adhesion. Inside, a machined solid brass alloy insert features internal threads that match the gas diffuser perfectly, ensuring a tight and concentric fit. Crucially, the nozzle insulator is crafted from G7 silicone material, providing robust electrical insulation that prevents arc tracking and protects the gas diffuser. This 3-piece design eliminates the need for additional separate insulators, simplifying maintenance and replacement.<\/p>\n
The Tweco 21-50 is compatible with standard gas diffusers (Part No. 51 and 51-23) and is designed to thread securely onto the gun assembly. The part number is roll-stamped clearly on the outside surface for easy identification in a busy shop environment. With an overall length of 2.224 inches and an outside diameter of 0.750 inches, it offers a compact profile suitable for accessing various joint configurations while maintaining robust performance. This package contains two (2) nozzles, ensuring you have a spare on hand to minimize downtime.<\/p>\n","protected":false},"excerpt":{"rendered":"High-Performance Tweco 21-50 MIG Nozzles The Tweco 21-50 (Stock No. 1210-1110) is a standard MIG welding nozzle designed for precision and durability in light to medium-duty applications. Engineered to handle welding currents up to 180 amperes, this nozzle is a staple for professionals utilizing Tweco MIG guns. The 21-50 features a 1\/2-inch (12.7mm) bore size,… View Article<\/a>","protected":false},"featured_media":0,"template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[2042,2044],"product_tag":[],"class_list":{"0":"post-1782405","1":"product","2":"type-product","3":"status-publish","5":"product_cat-mig-accessories","6":"product_cat-mig-consumables","7":"pa_brand-tweco","8":"pa_item-nozzle","9":"pa_material-122-dhp-copper-alloy","10":"pa_packaging-description-pack-of-2","11":"pa_process-mig-gmaw","13":"first","14":"onbackorder","15":"taxable","16":"shipping-taxable","17":"purchasable","18":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/josefgases.com\/stage\/wp-json\/wp\/v2\/product\/1782405","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=1782405"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/josefgases.com\/stage\/wp-json\/wp\/v2\/product_brand?post=1782405"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/josefgases.com\/stage\/wp-json\/wp\/v2\/product_cat?post=1782405"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/josefgases.com\/stage\/wp-json\/wp\/v2\/product_tag?post=1782405"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}