Automatic Welding Machine for both Circular and Longtitudinal joints

H3660-Series Automatic Welding Machine

Weld Every Angle Circular Seams with Confidence.

Our automatic welding machines are engineered for unmatched flexibility — expertly handling circular seams at any angle. Whether it’s horizontal, vertical, inclined, or overhead, MecaNext delivers precise, consistent welds across all positions.

From pressure vessels to custom pipe assemblies, our solutions adapt to your geometry, not the other way around.

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All-in-One Automatic Welding Machine for Circular & Longitudinal Joints

  • Suitable for welding pipe-to-pipe, pipe-to-elbow, pipe-to-3-way pipe, and pipe-to-high neck flange butt-joint; pipe-to-flange and elbow-to-flange corner joint.
  • Suitable for welding various materials such as carbon steel, low alloy steel, stainless steel, and copper.
  • Ideal for Long Pipes: Extended base models allow seamless welding without repositioning.
Automatic Circular Seam Welding Machine for pipes

Pipe-pipe circumferential seam

Automatic Circular Seam welding of pipe to flange

Pipe-high neck flange circumferential sean

Automatic Welding of pipe to flange

Pipe-flange corner seam

pipe to elbow automatic circular seam welding

Pipe-elbow circumferential seam

Automatic welding on end-cap-elbow corner seam welding

End cap-elbow corner seam

Automatic welding on tank

Barrel longitudinal & circumferential seam

Specification

 

ModelH3661-TH3662-TH3663-T
Welding Component TypePipe, pipe plate circumferential seam welding and pipe plate fillet welding (optional straight seam welding function)
Positioner0° ~ 90° manual positioner; rotation radius: 500mm
SupportSupports Φ50 ~ Φ600mm; Standard with one set (optional for additional sets)
Welding Gun OscillatorOscillation width: 0 ~ 20mm; Oscillation speed: 0 ~ 6mm/s; Arc stop-side dwell time: 0 ~ 5s
Arc Length TrackerTracking range: 0 ~ 40.0mm; Tracking speed: 0 ~ 6mm/s; Tracking accuracy: 0.2mm
TIG Wire FeederApplicable wire: 1.0mm
Welding GunLD400 water-cooled TIG welding gun; Torch tilt angle: 0° ~ 90°
Control systemColor touchscreen controller
StorageCan store 30 welding processes (optional straight seam welding feature with a storage capacity of 40 processes)
Welding LayersAutomatic multilayer welding
Welding Power SourcePanasonic YC-400TX TIG welding power source (optional Panasonic hot wire TIG welding power source)
Dimensions (LxWxH)500 × 900 × 30 mm500 × 900 × 30 mm500 × 900 × 30 mm
Chuck Front-End Travel1000mm2000mm3000mm
Total Weight1100kg1200kg1300kg
Power inputWelding power source: 30KW/380V/50Hz; Control system: 1.0KW/220V/50Hz

Advanced Welding Equipment for Circular & Longitudinal Joints

The MecaNext dual-purpose seam welding machine is designed to handle both circumferential (circular) and longitudinal (straight) seam welding with high precision and automation. This versatile solution supports a wide range of workpieces — from pipes and pressure vessels to flat plates and flanged structures.

With a modular design and multi-axis control system, the machine can quickly switch between welding modes, significantly improving production efficiency while maintaining consistent weld quality.

  • Equipped with TIG welder, arc voltage controller (AVC) and oscillator (OSC).

  • The automatic wire feeder is equipped with automatic wire retraction and impulse wire feeding functions, ensuring precise and accurate wire feeding.

Precision and Reliable Engineering

  • Integrated design with compact and reliable structure; three-jaw self-centering chuck offers precise rotation and positioning.
  • The machine comprises a comprehensive integration of a three-dimensional welding manipulator arm, a positioner, and a welding torch angle adjustment mechanism.
  • This sophisticated combination ensures a seamless transition of various positions and angles for the torch, enabling precise and efficient welding operation.
  • A forced circulation water cooling unit is built into the machine, guaranteeing reliable and uninterrupted operation for extended periods.

User-Friendly Interface

  • The operation system of the machine features a user-friendly touchscreen interface, facilitating effortless programming.
  • The machine features a one-touch operation that automates the entire welding process.
  • It also allows real-time intervention for adjusting welding parameters as needed.
  • With a storage capacity for 30 sets of welding procedures, the system enables direct retrieval of the corresponding elding procedures based on specific weldment specifications.

See How Our H3660S Welding Works

Get Some Inspiration on Our H3660S Welding Works

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