The furnace control system is the heart of modern heat treatment facilities. It enables precise control and monitoring of temperature profiles, hold times, and furnace atmospheres. With intelligent process controllers and integrated process control systems, the entire plant can be operated efficiently, safely, and with reproducible results—a crucial factor for product quality and cost-effectiveness.
The Importance of Furnace Control for Industrial Heating Processes
The control of furnaces is a central component of many thermal manufacturing processes—from hardening and annealing to sintering. It ensures that process parameters are precisely maintained, thereby laying the foundation for consistently high-quality results. In combination with high-performance process controllers and digital control systems such as prosys/2 from Demig, an intelligent platform is created for controlling, visualizing, and analyzing the entire process. At the same time, prosys/2 ensures that all relevant data is archived in compliance with standards.
Technical Requirements for Modern Control Systems
A modern kiln control system must meet complex requirements. These include, among others:
- Zone-specific temperature control for different furnace areas
- Recipe management and sequence control to ensure consistent process flows
- Integration of modern interfaces (e.g., OPC UA) for connection to MES or ERP systems
Demig relies on modular platforms such as the DE-CP controller series, which can be flexibly adapted to individual furnace configurations and industry standards.
Process Integration and Digitalization
In industrial production, kiln control is closely integrated with other processes. The overarching goal is end-to-end digitalization, which not only simplifies operation and monitoring but also improves quality and traceability. Modern systems collect process data in real time, centrally visualize processes, and automatically report critical conditions. This enables a rapid response to deviations and contributes to process reliability—especially in regulated industries such as the automotive, medical technology, food, and aerospace sectors.
Retrofit: Modernizing Existing Systems
Many existing kiln systems are mechanically reliable but have outdated control systems. A targeted retrofit ensures their future viability and makes investments sustainable. Typical measures include:
- Replacement of traditional controllers with modern process control technology
- Addition of visualization and centralized user interfaces
- Integration into digital production and control systems
Demig offers modular solutions for this purpose that are individually tailored to existing plants and processes.
Conclusion
The furnace control system is much more than just temperature control—it is the link between plant engineering, process reliability, and digital production. With integrated solutions comprising process controllers and process control systems, Demig supports companies in implementing highly available, energy-efficient, and future-proof heat treatment processes.