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OTC Positioner 1PB500

The OTC 1PB500 is a robot-compatible 1-axis positioner for 500 kg loads. Precise, powerful, and ideal for medium to heavy robotic welding.

Robust 1-Axis Positioner OTC DAIHEN® Automation

OTC DAIHEN 1PB500 – Robust 1-Axis Positioner for Medium to Heavy Workpieces

High-Torque Rotational Precision • Coordinated Synchro-Motion

The OTC DAIHEN 1PB500 is a high-performance 1-axis rotary positioner designed to handle medium to heavy-duty workpieces with exceptional rotational precision. Engineered to safely carry dynamic loads up to 500 kg, this positioner delivers highly fluid and synchronized movement for optimized robotic welding accessibility and joint alignment accuracy.

Key Features

• Large Payload Capacity: Rugged design supports medium-heavy industrial parts up to 500 kg.
• Controlled Rotation: Maintains smooth, controlled operation speeds of 120°/s (2.1 rad/s).
• High Torque Handling: Robust internal gearbox withstands rotational twisting forces up to 490 N·m.
• Precision Repeatability: Limits path tolerance to an ultra-tight ±0.1 mm within a 300 mm radius.
• Built-in Cable Routing: Features a hollow center shaft with an integrated 500 A heavy-duty welding terminal.

Technical Specifications

Specification Parameter	Value
Model Designation	1PB500
Axis Configuration	1-Axis Rotary
Maximum Payload	500 kg
Max Rotational Speed	120°/s (2.1 rad/s)
Allowable Torque	490 N·m
Repeatability Tolerance	±0.1 mm @ R = 300 mm
Welding Terminal	500 A Integrated
Unit Dead Weight	170 kg
Control Compatibility	OTC DAIHEN Robot Controllers (FD Series Native)

Ideal Applications

• Automotive chassis, heavy axles, and subframe welding.
• Fabrication lines for medium-scale structural steel sections.
• Precision positioning of heavy process piping, large brackets, and industrial tanks.

Benefits Summary

✓ Provides highly reliable and smooth rotation for mid-to-heavy structural parts.
✓ High repeatability ensures absolute consistency across critical weld seams.
✓ Centralized cable management heavily extends torch pack and internal wire lifespans.