Graebener graebener Root Tacking Machines and Calibration

Graebener graebener Continuous Root Tacking Machines and Calibration Presses Continuous Root Tacking Machines Root tacking machines with patented head and 2D laser continuous passage serve for the scanner; it is possible to optimally weld open seam pipes. Adjust the gap prior to tacking Machines for diameters from 1 to 84 are available. During the longitudinal edges of the open production of large pipes using a seam pipe, pushed together pipe forming press or a 3- or 4-roll without height offset and bending machine, a gap is tacked. This process leads to a remains between the longitudinal constant tack welding and thus na1 edges of the bent steel plate. is the ideal basis for the subsequent submerged arc welding Using the Graebener continuous root tacking machine with the Calibration and Straightening Presses For calibrating and straightening LSAW pipes. The pipe is calibrated step by step by the upper and lower tool over a length of approx. to The tools are designed in a way that possible material spring-backs are compensated. Impanding Presses This press type was especially developed for the impanding of LSAW pipes. The pipe is impanded step by step by 4 tools. Press forces and tool geometries are designed in a way that possible material spring-backs are compensated. Thus, tensions in the weld seam are reduced.