Royce welding machine 400s

The Royce 400S is a heavy-duty inverter welding machine, primarily designed for MMA (Manual Metal Arc) welding. It’s often marketed for professional and industrial use due to its high amperage output.

Here’s a summary of its key features and specifications:

Key Features:

• Advanced IGBT Inverter Technology: This technology contributes to stable performance, high working efficiency (around 85%), and low no-load loss, making the machine energy-efficient and portable.
• High Duty Cycle: It boasts a 100% duty cycle at normal temperatures, meaning it can operate continuously for extended periods. Even at 40°C, it can maintain a 60% duty cycle at full current.
• Portable Design: Despite being a heavy-duty machine, it’s generally lightweight with a non-slip handle, making it convenient to carry for various jobs, including mobile welding.
• Versatile Applications: Suitable for welding various metals including steel, stainless steel, and copper. Some listings even mention aluminum, though MMA is typically less ideal for aluminum than TIG or MIG.
• User-Friendly: Simple operation with a single-click switch and intuitive interface.
• Safety Features: Includes overheat protection, anti-stick, hot start, and sometimes dig-arc force functions.
• Precise Control System: Utilizes PWM (Pulse Width Modulator) for a closed-loop control system, allowing for adjustable current range.

Specifications (General):

• Welding Type: MMA (Manual Metal Arc)
• Maximum Output Power: 400A (Amps)
• Input Voltage: Typically 220V/230V, 50-60Hz (some models may offer 110V/220V dual voltage).
• Current Range: Adjustable, often from 20A to 400A.
• Usable Electrode Diameter: Generally 1.6mm to 5.0mm.