... , the machine is placed on the top of the nozzle tube, the welder moves according saddle curve path to fit the ... -6 times faster than manually welding. For example:Nozzle tube diameter: 330mm,Main tube diameter: 1000mm,Thicknesses of the tubes: 200mm.In ... productsIn the above case, the pass rate is 99%, if well operated the pass rate could scale to 99.6%. Tube joint machine