{"product_id":"tweco-1220-1311-slip-on-mig-nozzle-1-2-inch-bore-250a","title":"Tweco 1220-1311 Slip-on Mig Nozzle 1\/2 Inch Bore 250A","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe TWECO 1220-1311 is a slip-on copper MIG welding nozzle designed for use with 250 A Tweco SprayMaster MIG guns. The nozzle features a 1\/2 inch bore and measures 2.273 inches in length with a 0.875 inch outer diameter. It is built as a 3-piece assembly: a nozzle housing cut and formed from 122 DHP copper alloy tubing, a nozzle insert machined from solid brass and crimped in place, and a nozzle insulator constructed from G7 silicone material. The flush contact tip relationship of 0.062 inches suits applications where shorter electrical stick-out is needed. This nozzle is sold in a pack of 2 and is intended for heavy-duty welding service up to 250 amps.\u003c\/p\u003e\u003cp\u003eThis nozzle is used in heavy-duty MIG welding applications running up to 250 A and is designed for use with standard gas diffusers on Tweco SprayMaster MIG guns. The flush tip configuration is suited for applications where a shorter electrical stick-out is preferred, resulting in a tighter arc length and bringing the contact tip closer to the work piece. The slip-on design allows the nozzle to slide over the metal spring of the gas diffuser for quick changeover in production or field welding environments. The part number is rolled and stamped on the outer surface for easy identification at the consumable rack.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1\/2 inch bore with 0.875 inch OD and 2.273 inch length for standard gas diffuser fitment\u003c\/li\u003e\n\u003cli\u003e3-piece design: 122 DHP copper alloy housing, solid brass machined insert, and G7 silicone insulator\u003c\/li\u003e\n\u003cli\u003eFlush contact tip relationship of 0.062 inches suited for shorter electrical stick-out applications\u003c\/li\u003e\n\u003cli\u003eNozzle insert crimped in place to slide over gas diffuser metal spring without additional hardware\u003c\/li\u003e\n\u003cli\u003eG7 silicone insulator provides required electrical isolation from the gas diffuser without a separate insulator component\u003c\/li\u003e\n\u003cli\u003ePart number rolled and stamped on outer surface for fast field identification\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with 250 A Tweco SprayMaster MIG guns with a standard gas diffuser. Flush tip configuration is appropriate for applications requiring shorter electrical stick-out.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by licensed welding professionals or qualified technicians. Disconnect and de-energize the MIG gun and power source before replacing nozzle consumables. Slide the nozzle onto the gas diffuser spring until fully seated before resuming operation. Inspect the nozzle insulator and insert for wear or spatter buildup at each consumable change interval.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore Size\u003c\/strong\u003e: 1\/2 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNozzle Length\u003c\/strong\u003e: 2.273 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Diameter\u003c\/strong\u003e: 0.875 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage Rating\u003c\/strong\u003e: 250 amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContact Tip Relationship\u003c\/strong\u003e: Flush, 0.062 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\u003ePackage Quantity\u003c\/strong\u003e: 2 per pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.13 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: 1220-1311\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWECO","offers":[{"title":"Default Title","offer_id":51344309092658,"sku":"1220-1311","price":58.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310545915.jpg?v=1782033036","url":"https:\/\/voomisupply.com\/products\/tweco-1220-1311-slip-on-mig-nozzle-1-2-inch-bore-250a","provider":"Voomi Supply","version":"1.0","type":"link"}