{"product_id":"tweco-1140-1204-mig-contact-tip-0-045-in-25-pack","title":"Tweco 1140-1204 Mig Contact Tip 0.045 in 25 Pack","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe TWECO 1140-1204 is a heavy-duty MIG contact tip designed for high-amperage welding applications up to 400 amps. It accommodates 0.045-inch wire with a 0.054-inch nominal bore and measures 1.47 inches in length. The tip is machined from 122 DHP copper alloy using extruded or gun-drilled tubing, producing a consistent, smooth inside diameter held to a tolerance of plus or minus 0.003 inches. A 1\/4-28 UNF-2A thread connects the tip to the gun diffuser. Sold in packs of 25, this tip is a standard consumable for professional MIG welding operations requiring reliable current transfer and extended service life.\u003c\/p\u003e\u003cp\u003eThis contact tip is rated for use with 200 to 400 amp Tweco No. 2, No. 3, and No. 4 MIG guns, as well as compatible MIG gun series in that amperage range. It suits heavy-duty production welding environments where tip longevity and consistent arc quality are priorities. The twist-lock design engages the gas diffuser without loose threading, and the tip accepts both slip-on and thread-on nozzle styles, making it adaptable across common gun configurations found in fabrication and manufacturing shops.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e0.045-inch wire diameter, 0.054-inch nominal bore ID with plus or minus 0.003-inch tolerance\u003c\/li\u003e\n\u003cli\u003eMachined from 122 DHP copper alloy for consistent inside diameter surface and strong electrical conductivity\u003c\/li\u003e\n\u003cli\u003eTwist-lock design locks tip in place against the gas diffuser, increasing surface contact area and conductivity\u003c\/li\u003e\n\u003cli\u003eThick-walled construction acts as a heat sink, drawing heat away from the arc source\u003c\/li\u003e\n\u003cli\u003eQuarter-turn clockwise rotation reveals a new wear point, effectively doubling usable tip life\u003c\/li\u003e\n\u003cli\u003ePart number and wire diameter marked on each tip for easy field identification\u003c\/li\u003e\n\u003cli\u003eSold as 25 per pack\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eRated for use with 200 to 400 amp Tweco No. 2, No. 3, and No. 4 MIG guns and compatible MIG gun series. Accepts slip-on or thread-on nozzle styles.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eContact tip replacement is performed by a qualified welder or welding technician. Power down the welder and allow the gun to cool before removing the worn tip. Thread the 1140-1204 into the gas diffuser hand-tight and engage the twist-lock by rotating clockwise until seated. Inspect the nozzle and diffuser for spatter buildup before reinstalling to maintain proper gas shielding and electrical contact.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Diameter\u003c\/strong\u003e: 0.045 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore ID\u003c\/strong\u003e: 0.054 inches nominal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Diameter\u003c\/strong\u003e: 0.283 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 1.47 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-28 UNF-2A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Rating\u003c\/strong\u003e: 400 amps maximum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: 122 DHP copper alloy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eID Tolerance\u003c\/strong\u003e: plus or minus 0.003 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack Quantity\u003c\/strong\u003e: 25 each\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.03 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: 1140-1204\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWECO","offers":[{"title":"Default Title","offer_id":51347565019442,"sku":"1140-1204","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310545790.jpg?v=1782108657","url":"https:\/\/voomisupply.com\/products\/tweco-1140-1204-mig-contact-tip-0-045-in-25-pack","provider":"Voomi Supply","version":"1.0","type":"link"}