Controlled Atmosphere Aluminum Brazing (CAAB®)
AFC-Holcroft CAAB® – Energy-efficient aluminum brazing systems for heat exchangers
Product details
- Process CapabilityControlled atmosphere flux brazing of aluminum heat exchangers
- ApplicationsRadiators, heater cores, condensers, evaporators, charge air and oil coolers
- Heating SystemGas or electric with radiant or convection heat transfer
- Conveyor SystemContinuous mesh belt or tray-based transport
- System Configuration & Control Traditional or energy-saving designs with PLC or PC-based control and atmosphere monitoring
Patented energy-saving CAAB® design – efficiency and quality redefined
Built on decades of experience, AFC-Holcroft’s CAAB® furnaces are available in both traditional and energy-saving configurations. The new design eliminates the conventional full muffle, integrates a stainless steel internal shroud extended beyond the braze zone, and ensures complete flux activation within the controlled atmosphere. These innovations, combined with modular access and quick-change heating elements, deliver major energy reductions, faster startups, and easier maintenance — without compromising brazing quality.
Additional technical features
Up to 40% reduction in energy consumption in normal production
Startup to operating temperature in only 3 hours from cold start
Extended internal stainless steel shroud for improved flux activation
Curtains at both ends maintain low oxygen levels with minimal nitrogen use
Multiple access doors for maintenance convenience
Quick-change heating elements — replaceable without full line shutdown
Elimination of muffle — no “hump clean-out” due to flux buildup
Air or water jacket cooling zones divided for precise control
Key Benefits for Your Operation
Energy efficiency – Up to 40% energy savings with patented furnace design.
Rapid startup – Reduced warm-up time from hours to only 3 hours.
Low operating cost – Comparable nitrogen consumption with reduced power draw.
Simplified maintenance – No muffle cleaning; easy access through multiple hatches.
Reliable performance – Proven to match or exceed traditional CAAB® brazing quality.
Sustainable operation – Smaller substation requirements and lower installation costs.
CAAB® Furnace Specifications
The following table outlines key system specifications and configuration options.
Reliable service throughout your entire system lifecycle
We support our customers throughout the entire lifecycle of their systems – from commissioning and ongoing operation through modernization and digital integration.
FAQ – AFC-Holcroft CAAB® Aluminum Brazing Systems
Connect With Our Team - Talk to an AFC-Holcroft Specialist
Get guidance on equipment selection, process requirements, upgrades, or technical support for your application.