Vacuum Annealing Furnace for Copper Tubes
- Temperature Uniformity:±3℃~±5℃
- Ultimate Vacuum:6.7×10⁻⁴ Pa ~ 7×10⁻¹ Pa
- Atmosphere Types:High Vacuum / N₂ / Ar / H₂
- Application:Stainless steel, Ti alloy, Superalloy, Tool steel, Non-ferrous metals
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Customized Vacuum Solutions
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High Thermal Efficiency
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Ultra-Clean Vacuum Environment
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Stable & Repeatable Results
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Industry-Grade Safety Design
Redefine Your Copper Tube Quality
Purpose-built for copper tube annealing under vacuum conditions, this furnace delivers oxidation-free results, exceptional surface finish, and precise thermal control — all in one fully automated system. With a maximum operating temperature of 900°C and control accuracy of ±1°C, it sets a new standard for copper tube processing in demanding industries.
Why Leading Manufacturers Choose Us
✦ Oxidation-Free Vacuum Environment
Keep every copper tube bright and clean. Our fully sealed vacuum system completely eliminates surface discoloration and hydrogen embrittlement — delivering results that traditional hydrogen atmosphere annealing simply cannot match. No oxidation. No compromise.
✦ Siemens PLC Smart Control — Operate with Confidence
A 10-inch color touchscreen puts full control at your fingertips. Program up to 30 custom process curves, export production data via USB, and run the entire annealing cycle with a single touch. The system supports up to 72 hours of unattended operation, freeing your team to focus on what matters.
✦ High-Efficiency, Energy-Saving Design
OCr25Al5 high-oxidation-resistant heating elements combined with a dual-layer ceramic fiber chamber structure minimize heat loss and extend equipment lifespan — reducing energy consumption without sacrificing performance.
✦ Rapid Cooling for Higher Throughput
Water-cooled sealing paired with nitrogen back-blowing technology achieves cooling rates of ≤10°C/min, dramatically shortening cycle times and enabling continuous, high-volume production.
✦ Triple Safety Protection — Run 24/7 with Peace of Mind
Automatic alarms for over-temperature, abnormal pressure, and thermocouple failure — backed by integrated circuit breakers and leakage protection. Safety is never an afterthought.
Key Technical Specifications
Parameter | Specification |
Furnace Chamber Size | φ360 × 6400 mm |
Maximum Operating Temperature | 900 °C |
Continuous Operating Temperature | 850 °C |
Rated Power & Voltage | 248.2 kW, 380V / 3-Phase / 50Hz |
Temperature Control Accuracy | ±1 °C |
Temperature Uniformity | ±5 °C |
Thermocouple | K-type, PID continuous control |
Heating Element | OCr25Al5 resistance wire |
Vacuum System | 2X-70 rotary vane pump + cold trap + valve assembly |
Cooling System | Flange-type water-cooled sealing with imported sealing rings |
Standard Process Flow
Loading → Vacuum Evacuation → Nitrogen Purge → Heating → Oil Smoke Exhaust → Soaking → Heating Complete → Cooling → Gas Compensation → Unloading
Every step is fully automated and monitored — ensuring consistent results batch after batch.
Built for High-Precision Industries
Industry | Application |
Power | Annealing of copper tubes for cables and transformers |
Refrigeration | Heat treatment of condenser tubes for AC and refrigeration systems |
Electronics | Precision processing of heat sinks and electrical connectors |
Aerospace | Manufacturing of high-purity copper conduits |
New Energy | Copper tube processing for solar modules and battery systems |
