Plasma Torch Vacuum Arc Furnace for High-Temperature Melting of Metals and Alloys

Product Overview

This plasma torch vacuum arc furnace is a high-performance melting system engineered for processing high-melting-point metals, alloys, ores, and industrial waste. By harnessing a plasma torch, the furnace generates an arc core temperature reaching 10,000°C, enabling rapid and efficient melting of refractory and reactive elements under precisely controlled vacuum or inert gas conditions.

Ideal for material science research, metallurgical development, and pilot-scale production, this equipment serves laboratories and R&D departments in aerospace, nuclear energy, electronics, and advanced manufacturing. It excels in producing high-purity alloys for demanding applications, smelting ore concentrates to assess mineral composition, recycling valuable metals from industrial waste, and synthesizing novel materials for emerging technologies.

Engineered for demanding continuous operation, the furnace incorporates a robust vacuum system, precise electrode positioning, and durable chamber construction. Every component is selected for longevity and consistent performance, ensuring reproducible results even in the most challenging thermal environments.

Key Features

• Ultra-High Vacuum Environment: The system achieves a cold-state limit vacuum below 6.7×10⁻³ Pa through a robust pumping package consisting of a TRP-48 mechanical pump, a KT-150 diffusion pump, and a network of three high-vacuum valves. This level of vacuum effectively removes atmospheric gases, permitting the melting of high-purity and reactive metals without oxidation or contamination.
• Extreme Temperature Plasma Arc: The plasma torch generates an intensely hot arc, with a core temperature reaching 10,000°C and an outer flame near 4,000°C. This exceptional thermal energy melts even the most refractory metals rapidly, increasing throughput while minimizing energy loss.
• Precise Electrode Control: An electric lifting mechanism with a travel range of under 150 mm provides precise electrode positioning, allowing operators to maintain optimal arc length and heat input. This repeatable control is essential for achieving consistent alloy compositions and reducing melt variability.
• Bottom Crucible Lift System: The bottom-mounted crucible lift simplifies loading and unloading of materials. With a travel under 200 mm, it provides easy access while maintaining a sealed vacuum environment, reducing operator fatigue and cycle time.
• High-Frequency Ignition: Reliable arc starting is ensured by a high-frequency ignition system, eliminating the need for mechanical contact and allowing for clean, repeatable starts even under high vacuum.
• Large Observation Window: A wide-diameter viewport integrated into the chamber wall gives operators clear visibility of the melt pool, enabling real-time process monitoring and adjustments without compromising vacuum integrity.
• Versatile Melting Capability: The single-station design accommodates a crucible of D200 mm × 60 mm (H), suitable for processing small batches ranging from research samples to pilot-scale production. Works with a wide array of metals including iron, copper, nickel, cobalt, precious metals, and rare earths, making it a go-to tool for diverse metallurgical research.
• Durable Chamber Construction: The vertical cylindrical chamber is built for longevity, with a top-opening door and robust sealing mechanisms that withstand repeated thermal cycling and vacuum conditions.

Applications

Technical Specifications

Why Choose This Product

• Engineered Reliability: Every component, from the diffusion pump to the chamber seals, is sourced from proven suppliers and tested to endure thousands of cycles, ensuring minimal downtime and consistent operation over years of service.
• Precision Manufacturing: The electric lift system and high-frequency ignition are calibrated for sub-millimeter electrode positioning and reliable arc initiation, delivering repeatable melt conditions and high-quality outputs.
• Superior Vacuum Performance: The combination of a high-capacity mechanical pump and oil diffusion pump achieves a clean vacuum level that rivals more complex systems, protecting sensitive materials from contamination.
• Customization & Support: Our engineering team works closely with customers to tailor the furnace layout, crucible size, or automation features to specific needs, and provides comprehensive installation and training support.
• Safety and Ease of Use: The bottom-loading design, large viewport, and intuitive controls simplify operation while built-in safety interlocks protect both the operator and the equipment.

Contact us today to discuss your melting requirements and receive a customized quote for a system configured to your exact specifications.