OTC VR-400

is a high-performance DC arc welding machine engineered for precision and efficiency in various industrial applications. Incorporating advanced IGBT inverter technology, the VR-400 ensures stable arc performance and minimal spatter, resulting in high-quality welds across a range of metals.​

Key Features:

• IGBT Inverter Control: Provides stable arc and reduces spatter, enhancing weld quality.​

• Perfect Constant Current Characteristics: Ensures consistent welding performance across various applications.​

• Wide Range of Applications: Suitable for welding with cellulose-coated electrodes in all positions.​

• Automatic Remote Control Box Recognition: Facilitates easy setting of welding conditions for enhanced usability.​

• Stackable Design: Allows two machines to be stacked, optimizing workspace.

• Protection Features: Includes input over-voltage, low-voltage, and lack-phase protection circuits.

• Dust-Proof Structure: Enables operation in harsh environments.​

• Electric Shock Preventing Device: Enhances operator safety.​

Technical Specifications:

• Model: VR-400​

• Power Source Voltage: 380V ±10%, 415V ±10%

• Number of Phases: 3​

• Rated Frequency: 50/60 Hz​

• Rated Input Power: 18.8 kVA (16.4 kW) / 19.1 kVA (16.5 kW)​

• Rated Output Current: 400A​

• Rated Load Voltage: 36V​

• Output Current Range: 10–400A​

• Output Voltage Range: 20.4–36V​

• No-load Voltage: 66.9V / 73.0V

• Rated Duty Cycle: 60%​

• Insulation Class: Main Transformer: Class C; DC Reactor: Class 200°C​

• Usable Temperature Range: -10°C to +40°C

• Protection Rating: IP21S​

• Dimensions (W x D x H): 329 x 608 x 598 mm​

• Weight: 56.2 kg​

• Input and Grounding Cable: 8 mm² or more

• Fuse/Breaker Capacity: 40A​

Applications:

The OTC VR-400 is ideal for:​

• Metal Fabrication: Suitable for welding steel, stainless steel, and other conductive metals in fabrication shops.​

• Automotive Industry: Used for precise welding of vehicle components and chassis parts.​

• Construction: Applicable in welding structural steel elements for buildings and infrastructure.​

• Shipbuilding: Efficiently welds thick metal plates used in ship hulls and other marine structures.​

Advantages:

• Enhanced Productivity: High output current and duty cycle enable prolonged welding operations without overheating.​

• Versatility: Supports a wide range of welding applications across multiple industries.​

• Durability: Robust construction ensures reliable performance in demanding work environments.​

• Safety: Incorporates multiple protection features to safeguard both the operator and the equipment.​

In summary, the OTC VR-400 DC Arc Welding Machine combines advanced technology, high performance, and user-friendly features, making it an excellent choice for professionals seeking reliable and versatile welding solutions.