Youbest Welding Ltd is one of the leading China open head-tube to tube welding heads toa series manufacturers and suppliers, welcome to wholesale  youbest welding TIG welding machines fushion welding heads from our factory. TOA Open Heads Series: Tube to Tube Welding HeadsTOA open welding head is special designed for tube to tube TIG welding, suitable for carbon steel, stainless steel tube to tube connection, mainly for wire feeding or self-fusion. For thick wall tube to tube orbital welding. Suitable for wall thickness 3～20mm tube installation, wide range of welding with AVC tracking and OSC covering. Product FeaturesSuitable for medium wall thickness carbon steel, stainless steel material;Suitable for connection of tube to tube, tube to flange, tube to elbow, tube to valve and so on;Automatic all position TIG tube to tube welding with/without wire feeding;Compact structure design, stable rotation with small rotating inertia;Water circuit cooling, achieving long time working;Oscillation, multi-passes welding process;Optional of external/integrated wire feeder. Product Specifications    Item No.TOA77TOA130TOA180TOA230TOA320MaterialCarbon steel, stainless steelTube OD（mm）Inner clamp:Φ19.05～Φ45（3/4″～1 3/4″）Inner clamp:Φ38.1～Φ76（1 1/2″～3″）Inner clamp:Φ50.8～Φ114.3（2″～4 1/2″）Inner clamp:Φ120～Φ178（4 1/2″～7″）Inner clamp:Φ150～Φ230（6″～9″）Outer clamp:Φ45～Φ77（1 3/4″～3″）Outer clamp:Φ76～Φ130（3″～5″）Outer clamp:Φ114.3～Φ180（4 1/2″～7″）Outer clamp:Φ178～Φ230（7″～9″）Outer clamp:Φ230～Φ324（9″～12 3/4″）Tungsten diameter（mm）Φ2.4、Φ3.2Φ2.4、Φ3.2Φ2.4、Φ3.2Φ2.4、Φ3.2Φ2.4、Φ3.2Rotation speed（rpm）0.19～3.80.11～2.20.09～1.80.05～1.00.026～0.52Protective gasArArArArArCoolingWaterWaterWaterWaterWaterCooling flow（ml/min）≥600≥600≥600≥600≥600OSC width（mm）2040404040AVC height（mm）4040404040Wire diameter（mm）Φ1.0（standard）Φ1.0（standard）Φ1.0（standard）Φ1.0（standard）Φ1.0（standard）Max wire feeding speed（mm/min）18001800180018001800Clamps（mm）A220300375425550B180235285300315C112～132132～172184～224195～235230～270D92165225250297E82132182232328F320400525570680Weight（kg）5.5(no cable)10.8(no cable)19.5(no cable)21.5(no cable)36(no cable)Dimension(mm)370×220×320435×300×400445×375×525465×425×570430×610×680MOQ1pcExport PortShanghaiWarrantyOne YearAfter-sales ServiceEngineers available to service overseasDelivery Time2-4 Weeks  Packaging 

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