{"product_id":"tweco-1230-1210-mig-welding-nozzle-450a-0-5-in-bore","title":"Tweco 1230-1210 Mig Welding Nozzle 450A 0.5 in Bore","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe TWECO 1230-1210 is a 23 Series self-insulated thread-on MIG welding nozzle rated for heavy-duty applications up to 450 amps. The nozzle features a 0.5-inch bore, a 3.219-inch length, and a 0.97-inch outer diameter. It threads into the conductor tube assembly via a 9\/16-inch-18 UNC-2B thread and uses a recessed contact tip relationship of 0.125 to 0.156 inches, making it suited for applications requiring longer electrical stick-out or where the nozzle may contact the workpiece. The three-piece construction combines a nozzle housing formed from 122 DHP copper alloy tubing, a solid brass machined insert, and a G7 silicone insulator. Sold as a 2-piece pack. Licensed welders and MIG welding technicians install this nozzle as part of routine front-end consumable maintenance.\u003c\/p\u003e\u003cp\u003eThe TWECO 1230-1210 is designed for standard gas diffuser setups in heavy-duty MIG welding environments. The recessed tip configuration is appropriate for higher-heat applications, tack welding, spot welding, and stitch welding, as well as situations where the nozzle may come into contact with the work surface. The nozzle installs via thread-on connection to the conductor tube assembly, making it compatible with standard Tweco 23 Series front-end configurations. The part number is rolled-stamped on the outer surface for quick field identification during consumable changeouts.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRated for heavy-duty MIG welding up to 450 amps\u003c\/li\u003e\n\u003cli\u003eThree-piece design: 122 DHP copper alloy housing, solid brass machined insert, and G7 silicone insulator — no additional insulator required\u003c\/li\u003e\n\u003cli\u003eRecessed contact tip relationship of 0.125 to 0.156 inches for longer electrical stick-out or workpiece contact scenarios\u003c\/li\u003e\n\u003cli\u003e9\/16-inch-18 UNC-2B thread-on connection to conductor tube assembly\u003c\/li\u003e\n\u003cli\u003ePart number rolled-stamped on outer surface for easy field identification\u003c\/li\u003e\n\u003cli\u003eSold as a 2-piece pack\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with standard Tweco 23 Series gas diffusers and conductor tube assemblies requiring a thread-on self-insulated nozzle with a 0.5-inch bore.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by a qualified MIG welding technician as part of front-end consumable maintenance. Disconnect the welding machine from its power source and allow the front-end components to cool completely before removing or installing nozzles. Thread the nozzle onto the conductor tube assembly by hand until snug, taking care not to cross-thread the 9\/16-inch-18 UNC-2B connection. Inspect the G7 silicone insulator for damage during each consumable changeout.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage Rating\u003c\/strong\u003e: 450 amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore Size\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNozzle Length\u003c\/strong\u003e: 3.219 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Diameter\u003c\/strong\u003e: 0.97 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 9\/16-inch-18 UNC-2B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContact Tip Relationship (Recess)\u003c\/strong\u003e: 0.125 to 0.156 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHousing Material\u003c\/strong\u003e: 122 DHP Copper Alloy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulator Material\u003c\/strong\u003e: G7 Silicone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Type\u003c\/strong\u003e: Thread-On\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 2 per pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.36 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: TWECO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1230-1210\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWECO","offers":[{"title":"Default Title","offer_id":51346532368690,"sku":"1230-1210","price":57.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310545908.jpg?v=1782082954","url":"https:\/\/voomisupply.com\/products\/tweco-1230-1210-mig-welding-nozzle-450a-0-5-in-bore","provider":"Voomi Supply","version":"1.0","type":"link"}