Complete Stud Welding
MARC 3 Nut Welding Machine

MARC 3 Nut Welding Machine

The MARC 3 is an automated nut welding machine engineered for pad welding using rotating arc technology. Designed for high-strength, gas-tight connections, this system is suitable for welding nuts and hollow cylindrical components across a wide range of industrial applications.

Its programmable controls, inverter-based power source, and linear motor-driven welding head provide precise process management while minimizing heat input and material distortion.

  • Rotating Arc Nut Welding Technology
  • Welds M4 Through M18 Components
  • Programmable Welding Parameters
  • Linear Motor Driven Welding Head

MARC 3 Nut Welding Machine Specifications

Welding Range: 5/16" to 1.26" (8 mm to 32 mm), M4 to M18
Pad Height Range: 0.16" to 1.18" (4 mm to 30 mm)
Welding Current: 300 to 1,000 A, Stepless Control
Welding Time: 5 to 2,000 msec, Stepless Control
Primary Power: 480 V, 16 A
Power Source: Inverter Technology
Air Pressure Connection: 6 bar / 1/4" (6 mm)
Welding Head: Linear Motor Driven

MARC 3 Nut Welding Machine Features

The MARC 3 was developed to provide a highly controlled nut welding process for manufacturers requiring strong, leak-tight welded connections. Its rotating arc technology creates uniform weld formation while maintaining low thermal impact on the surrounding material.

Rotating Arc Welding Process

The system utilizes a rotating arc welding method specifically designed for pad welding applications. This process creates a continuous welded connection around the entire component, producing excellent mechanical strength and sealing performance.

Broad Nut Welding Capacity

With the ability to weld components ranging from M4 to M18, the MARC 3 supports a wide variety of manufacturing applications. The system accommodates both external diameters and internally threaded components, providing flexibility across multiple production environments.

Programmable Process Control

Operators can independently program welding current, welding time, motion profiles, welding piston functions, and shielding gas parameters. This flexibility allows manufacturers to optimize the process for different materials and production requirements.

Linear Motor-Driven Welding Head

The integrated linear motor welding head provides precise movement and repeatable positioning throughout the welding cycle. This contributes to consistent weld quality and improved process stability.

Low Heat Input Technology

One of the key advantages of the MARC 3 is its ability to produce strong welds while introducing minimal heat into the workpiece. Reduced thermal impact helps limit distortion and preserves dimensional accuracy on finished components.

Designed for Gas-Tight Connections

The rotating arc process produces closed, pressure-sealed welds that are well-suited for applications requiring gas-tight performance. The system can be used for manifolds and other assemblies where sealing integrity is critical.

Is the MARC 3 Right for Your Application?

Every production environment has different requirements. We can help you evaluate whether the MARC 3 provides the performance and welding capabilities your operation requires.