The through-hole positioner is a device that plays an important role in the field of welding. It has a central through-hole, and the diameter of the through-hole is usually between 45mm and 365mm. When welding a long pipe fitting to a flange, as long as the diameter of the pipe can pass through the through-hole, the length of the pipe will not affect the welding. Long workpieces can be directly welded through the through-hole, which brings many advantages.

First of all, it facilitates the passage of protective gas into the inside of the pipe during the welding process. The shielding gas can effectively prevent the oxidation reaction during the welding process and improve the quality of welding. For example, in some industries with high requirements for welding quality, such as aerospace, automobile manufacturing, etc., this feature of the through-hole positioner is particularly important.

Secondly, the through-hole positioner can adjust various welds of the welded workpiece to the ideal position, avoiding the occurrence of bad welding postures such as overhead welding and vertical welding, thereby improving the quality of welding processing. Compared with traditional welding methods, the through-hole positioner can better meet the welding needs of complex workpieces.

In addition, the through-hole positioner usually adopts a rotary mechanism driven by a DC motor, and the rotation speed of the worktable is steplessly adjustable. This allows the operator to flexibly adjust the rotation speed of the workpiece according to different welding process requirements to achieve the best welding effect. At the same time, the worm gear turning mechanism with self-locking function can realize the stepless turning of the worktable from 0 to 90°, further improving the flexibility and convenience of welding.

There are many models of through-hole positioners to choose from to meet different welding needs. For example, the 50 kg new through-hole positioner has a worktable diameter of 360mm, a through-hole diameter of 45mm in the center of the worktable, and a worktable speed of 0.5-5r/min. The 100 kg through-hole automatic welding positioner has a worktable diameter of 400mm, a through-hole diameter of 45/75/100/140/170mm, and a worktable height of 520mm. Different parameters such as load capacity, worktable diameter, and through-hole diameter provide users with more choices. They can choose the appropriate through-hole positioner model according to the weight and size of the actual welding workpiece.