Casting U-Type Two Axis Welding Positioner with Hollow Shaft The GBS-02-U series is a casting U-type two axis positioner for parts that need to be rotated around a horizontal axis while the robot welds both sides. Its U-shaped cast frame supports a Φ500mm T-slot table that tilts ±115° and rotates ±360°, and the 50mm hollow shaft lets welding cable, air lines and sensor leads pass through the centre of rotation instead of looping outside the fixture. Payload classes are 300kg