Aluminum Brazing Furnace
Product Details
1. Product Overview
Our Continuous Controlled Atmosphere Brazing (CAB) Furnaces are the industry-leading solution for high-volume production of aluminum heat exchangers. Utilizing the NOCOLOK® flux brazing technology, our lines ensure perfect, leak-free joints for automotive radiators, condensers, evaporators, and industrial oil coolers. With precise nitrogen atmosphere control and uniform heating, we deliver superior brazing quality and consistent surface finishes.
2. Key Features & Benefits (Optimized for Efficiency)
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Precision Atmosphere Control: Maintains an ultra-pure nitrogen environment with oxygen levels below 10ppm, ensuring oxide-free brazing and high first-pass yields.
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Exceptional Temperature Uniformity: Multi-zone heating control ensures a temperature tolerance of ±2°C at the brazing peak, preventing core melting while ensuring full braze flow.
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Stable Conveyor System: High-quality stainless steel mesh belt with variable frequency drive (VFD) for smooth, vibration-free transport of delicate aluminum cores.
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Integrated Flux Management: Available with matching flux spray chambers and drying ovens for a fully automated, seamless production line.
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Energy-Efficient Design: High-performance refractory lining and optimized muffle design reduce nitrogen consumption and heating costs.
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Advanced Scrubber System: Equipped with effective exhaust scrubbing to handle flux vapors and ensure a clean factory environment.
3. Technical Specifications
Structured for B2B procurement evaluation.
| Feature | Specification |
| Furnace Type | Continuous Mesh Belt CAB Line |
| Max Temperature | 700°C (Typical Brazing at 600°C) |
| Atmosphere | High-Purity Nitrogen (99.999%+ N₂) |
| Oxygen Concentration | < 10 ppm |
| Dew Point Control | < -45°C |
| Heating Method | Electric (Radiant Tubes) or Gas-Fired |
| Effective Width | 400mm – 1500mm (Customizable) |
4. Typical Applications
Our CAB lines are optimized for the manufacturing of:
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Automotive Components: Radiators, heaters, condensers, and intercoolers.
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HVAC Systems: All-aluminum microchannel heat exchangers and coils.
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New Energy Vehicles (NEV): Battery cooling plates and chillers.
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Industrial Cooling: Oil coolers for heavy machinery and power electronics.
5. Why Choose Our CAB Lines?
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Turnkey Solutions: We provide the entire process chain, including degreasing, fluxing, drying, brazing, and cooling.
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Reliability: Engineered for 24/7 continuous operation with minimal maintenance downtime.
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Expert Support: Specialized process consulting to help you optimize your flux application and temperature profiles for new product development.
6. FAQ
Q: What is the advantage of CAB brazing over vacuum brazing?
A: CAB brazing (Controlled Atmosphere Brazing) is significantly more efficient for high-volume production. It offers faster cycle times, lower capital investment per unit, and is the global standard for automotive aluminum heat exchanger production using NOCOLOK flux.
Q: How do you maintain the nitrogen purity inside the furnace?
A: We use a combination of precision-engineered curtains, atmosphere sampling ports, and high-quality muffles to ensure that the nitrogen environment remains stable and free from oxygen or moisture ingress.



Zhejiang Wannengda Furnace Industry Co., Ltd