Orbital welding head SATO-220 AVC/OSC

TIGwater-cooledopen

Overview
The SATO-220 AVC/OSC open-head orbital TIG welding head is designed for welding large-diameter tubes and pipes with OD from 1.5 to 8.625 in / 38–220 mm. Intended for oil & gas, power generation and heavy fabrication, the open-head configuration allows access in complex geometries and confined jobsite conditions. The system integrates Automatic Voltage Control (AVC) and axial oscillation (OSC) to support repeatable multi-pass TIG welds on thick-wall joints. The AVC maintains a constant electrode-to-work distance while OSC provides controlled axial movement to improve bead uniformity and penetration. The unit is liquid-cooled and rated 200 A for continuous operation.

Key Features

• Tube OD range: 1.5 – 8.625 in / 38 – 220 mm
• Function: Orbital TIG welding with AVC and OSC
• AVC maintains stable arc voltage and electrode-to-tube distance
• OSC provides motorized axial oscillation with electrode travel ±10 mm (0.39 in) for precise multi-pass welding
• Supports welding with or without filler wire
• 200 A liquid-cooled system with 100% duty cycle at 200 A
• Small rotation sweep for operation in limited-access areas
• Quick clamping system for improved setup repeatability
• Compatible with SAXX power source
• Enables welding of tube wall thicknesses up to 12.7 mm (0.500 in)

Technical Features (liquid cooled)
Description: SATO-220 with AVC/OSC system
Part No. (straight motor): SATO-220E51
Part No. (angled motor): SATO-220E52
Motor: Straight or angled motor option
Diameter range: 1.5 – 8.625 in / 38 – 220 mm
100% duty cycle: 200 A
Electrode diameter: 1/16 in or 3/32 in / 1.6 or 2.4 mm
Cooling system: Liquid-cooled torch
Max operating temperature: 40 °C / 104 °F
Unit weight: 33.1 lbs / 15.1 kg

Technical Specifications

• Model: SATO-220 AVC/OSC
• Diameter range: 1.5 – 8.625 in / 38–220 mm
• Welding system: Orbital TIG with AVC and OSC
• Part numbers: SATO-220E51 (straight motor), SATO-220E52 (angled motor)
• Duty cycle: 200 A at 100%
• Electrode diameter: 1/16 in or 3/32 in (1.6 or 2.4 mm)
• Cooling: Liquid-cooled torch
• Max tube wall thickness: up to 12.7 mm (0.500 in)
• Axial oscillation sweep: ±10 mm (0.39 in)
• Max operating temperature: 40 °C / 104 °F
• Unit weight: 15.1 kg (33.1 lbs)