AMX-170 Closed Orbital Weld Head

TUBE OD RANGE: 1.5 – 6.625″ / 38 – 170 mm
COOLING SYSTEM: Water-cooled

The AMX-170 closed weld head is designed to meet the demanding requirements of large diameter tube applications, delivering reliable, consistent, and repeatable orbital welds. Compatible with multiple industry-standard orbital welding power sources, it provides maximum flexibility for integration into existing welding systems and production environments.

Designed for orbital welding through a simple fusion process without adding filler metal, the AMX-170 is ideal for thin-wall stainless steel tubing from 38–170 mm (1.5–6.625 in.) O.D. It is also well suited for oxidation-sensitive nickel and titanium alloys, making it an ideal solution for pharmaceutical, chemical processing, food and beverage, semiconductor, aerospace, and other demanding industrial applications where weld quality and piping integrity are critical.

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Part No. AMX-170
Description Closed welding head with 8m / 26ft cable. Water-cooled. See the power source compatibility table below.
Tube diameter 1.5 – 6.625″ / 38 – 170 mm
Electrode diameter 1/16″ or 3/32″ / 1.6 or 2.4 mm
Weight with cable 31.97 lbs / 14.5 kg
Duty cycle at 100% 120 A
Max welding current 150 A
Operating temperature +0°C / + 40 °C (32°F / 104°F)
Power supplies AXXAIR SAXX power supplies

POWER SOURCE COMPATIBILITY

BRAND POWER SOURCE directly compatible with adapter
AMI AMI-205 with auto-calibration YES NO
AMI AMI-207 with auto-calibration YES NO
AMI AMI-217 with auto-calibration YES NO
AMI AMI-307 NO YES: SAFS-ADAMI4
AXXAIR AXXAIR SAXX-201 NO YES: SAFS-ADAMI1
AXXAIR AXXAIR SAXX-200 NO YES: SAFS-ADAMI1
AXXAIR AXXAIR SAXX-210 NO YES: SAFS-ADAMI1
AXXAIR AXXAIR SAXX-300 NO YES: SAFS-ADAMI1

The AMX-170 is not compatible with AMI 227, 327, 415, and MAGNATECH Pipemaster 515/516 and Tubemaster 514.

  • Compatible with selected AMI and AXXAIR orbital welding power sources
  • Designed for large-diameter tube applications up to 170 mm (6.625 in.) O.D.
  • Grease-free operation compatible with clean room and high-purity standards
  • Direct gas supply with optimized gas diffusion system (max flow rate: 60 L/min) for superior arc stability and weld penetration
  • Standard aluminum clamping jaws that screw directly onto the machine for strength and stability
  • Water-cooled design for reliable performance during extended welding cycles
  • Easy maintenance and cleaning to reduce downtime
  • 8 m (27 ft) lead length for extended operational reach and flexibility

Two pivoting windows equipped with shade 10 welding glass.

Integrated offset electrode adjustment for precise arc alignment and improved weld quality

Two ergonomic handles for easy handling and precise positioning of the head.

Adjustable clamping pressure system designed to maintain consistent and reliable machine clamping.

Resources for Your AXXAIR Equipment

Explore AXXAIR closed orbital weld head solutions with our product brochure, or download the user manual for detailed installation, operation, and maintenance information.

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AMX: Orbital closed welding heads

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