Heavy-Duty Pedestal Positioner – High-Capacity, Rigid Platform for Precision Welding of Large Workpieces

The heavy-duty pedestal positioner is a tilting & rotating device designed for automated welding of large and heavy workpieces. Built with a heavy-duty steel box-section base, a large-diameter precision slewing bearing, and a robust reduction drive, it can safely and stably handle loads ranging from several tons to tens of tons. The worktable provides continuous 360° rotation and stepless tilting from 0° to 120°, allowing any seam to be positioned in the optimal “downhand” welding orientation, which greatly improves weld quality and productivity.

Key Features:

• High Load Capacity & Rigidity: Heavy-duty steel structure with stress-relief annealing ensures no deformation under long-term heavy loads; three-row roller slewing bearing and heavy articulated tilting mechanism offer excellent rigidity, effectively suppressing vibration during welding.

• Precise Rotation & Tilting Control: High-torque variable-frequency or servo motor with precision planetary gearbox provides stepless speed adjustment (typically 0.01–1.5 rpm) and high indexing accuracy; hydraulic or electric actuator driven tilting with self-locking function allows any angle setting and maintains position in case of power failure.

• Smart & User-Friendly: Standard wireless remote pendant or touchscreen HMI allows presetting of multiple tilt angles and rotation speeds; optional integration with welding power sources, cross-arm manipulators, and roller beds for fully automated cycles; advanced features like laser seam finding and arc tracking available.

• Comprehensive Safety: Equipped with emergency stop, overload protection, motor overheat protection, tilt limit switches, and anti-overturn devices; T-slots or radial threaded holes on table top facilitate quick fixture mounting.

• Low Maintenance & Long Life: Key rotating parts use oil-bath or centralized lubrication systems with good sealing, minimizing daily maintenance; wear-resistant transmission components ensure a service life of over 20 years.

Typical Applications:

• Girth and longitudinal seam welding of pressure vessels (shells, heads, nozzles)

• Flange and connector welding for wind tower sections

• Heavy structural welding for shipbuilding, pipe elbows, and mining equipment

• Large rotation parts in nuclear, chemical, and metallurgical industries

Specification Range (customizable upon request):

• Rated capacity: 5 tons – 60 tons (larger upon request)

• Rotation speed: 0.01 – 1.5 rpm (stepless VFD control)

• Tilting angle: 0° – 120° (stepless)

• Table diameter: 800mm – 4000mm

• Rotation accuracy: ≤ ±1 arcmin

System Integration:
Often combined with heavy-duty roller supports, cross-arm manipulators, or special welding machines to form an efficient automated welding workstation, suitable for SAW, MIG/MAG, TIG, and other processes.