Cyber Resilience in Modern Machining: Insights from Zimmermann
Today, Zimmermann’s state-of-the-art portal milling machines have evolved into intricate digital systems.
Ensuring the security of control systems, industrial PCs, and internal networks is paramount, preventing malware threats and protecting adjacent corporate networks.
In this context, cyber resilience is rapidly emerging as a foundational element of contemporary machine tools.
Distinct from machine security, which safeguards operators from the inherent dangers of the systems, cyber security pertains to the comprehensive digital framework of machinery.
All networked components equipped with IP addresses must be fortified against unauthorized external access.
As Christian Gaarz noted, Such intrusions could disrupt operational processes, precipitate production failures, and result in dire consequences like data loss or erroneous production parameters.
This is particularly critical for components destined for safety-sensitive sectors, such as commercial and military aviation.
With approximately four years at Zimmermann, Mr. Gaarz leads a team dedicated to the digital revitalization of the company’s portal milling machines.
This includes everything from drive mechanisms to sensor technologies and software solutions. His responsibility is to ensure that mechanical parts converge into a cohesive, reliable solution, all while prioritizing security.
Headquartered in Germany, Zimmermann operates under the leadership of Managing Director Frieder Ganzle, who ardently supports the integration of cyber resilience into the firm’s machines.
The regulatory landscape is becoming increasingly stringent. The Cyber Resilience Act (CRA) defines the security paradigms for digital products and systems.
In tandem with the Machinery Regulation (EU) 2023/1230 and the NIS 2 Directive, a coherent legal framework is being constructed within Europe.
Mr. Gaarz emphasized, “For us as a mechanical engineering firm, cyber resilience is no longer an optional enhancement, but a mandated requirement. We must comply with this binding framework by 2027.”
These stipulations commence at the machine development phase, significantly influencing design, software architecture, and documentation, underpinned by the principle of “security by design.”
This philosophy dictates that safety considerations are embedded from the outset, rather than retrofitted post-development.
Zimmermann’s methodical approach ensures preparedness to meet these requirements. The company engages in numerous industry specialist working groups and collaborates closely with control manufacturers such as Heidenhain and Siemens, alongside external experts.
Mr. Gaarz remarked, “For a medium-sized mechanical engineering entity like Zimmermann, consolidating regulatory expertise is essential for crafting pragmatic solutions. Simultaneously, we are recalibrating internal processes and providing targeted training for our workforce.”
A closer examination of Zimmermann’s development procedures reveals their pragmatic implementation of these requirements.
Initially, the company assesses which regulations are pertinent to the specific machine configurations. Following this, network architectures are scrutinized, segmented, and fortified with appropriate security mechanisms.
The integrity of industrial PCs and the primary CNC on the machine is safeguarded, and software vulnerabilities are meticulously evaluated with clearly defined processes for updates and documentation.
Mr. Gaarz explained, “We aim to minimize digital attack surfaces without compromising the dynamics or precision of our machinery.”
In special machine construction, the complexity remains substantial. Although each system is based on an existing series from Zimmermann, specifications often diverge due to factors like milling heads, peripherals, automation, or unique motion and material handling equipment.
Consequently, each system is configured individually, leading to a tailored electrical plan and topology that encompasses multiple channels, axes, drives, and safety functions.
Each axis necessitates precise parameterization, as mechanical variations directly influence control behavior. Thus, cyber security must be seamlessly integrated into existing frameworks without inhibiting machine performance.
While enhancing cyber resilience is critical, Zimmermann also seeks to capitalize on efficiency potentials.
The manufacturer plans to employ digital twins—virtual environments that enable collision assessments, parameter adjustments, and software modifications to be conducted proactively.
This approach reduces the time spent on commissioning at the factory floor, as many evaluations occur digitally beforehand. Risks are diminished, and processes become more stable, yielding tangible benefits for the customer.
Additionally, pre-emptive training for operators is facilitated, and in instances of service needs, fault conditions can be replicated within the digital model for expedited diagnosis.
Moreover, artificial intelligence (AI) plays a significant role in this evolution. Zimmermann is developing an internal knowledge repository, which will be analyzed via AI technologies.
As Mr. Gaarz stated, “Through pilot projects with control manufacturers, we are exploring how AI can expedite programming or error message analysis. In the future, we anticipate that routine tasks will be streamlined, and proposed solutions will be generated.”
However, the technical accountability remains with engineers, as Zimmermann regards AI as an auxiliary tool, necessitating validation and transparency.
The guiding principle “Beyond Precision” encapsulates this ambition, illustrating how Zimmermann reinterprets conventional precision in an interconnected industry—characterized by the interplay of mechanics, intelligence, and digital accountability.
Cornelius Kiesel, North American President of Zimmermann, remarked, “This progression signifies our commitment to technical responsibility.”
When crafting components designated for highly sensitive applications, this holistic philosophy accentuates the paramount importance of comprehensive precision.
Through the integration of cyber resilience, simulation, and AI, the manufacturer is solidifying its position as a technological partner for high-precision, large-scale machining, thereby establishing a foundation for sustainable investment in an increasingly interconnected landscape.
Mr. Kiesel concluded, “We perceive precision not merely as a mechanical attribute, but rather as a comprehensive ethos intertwining cyber safety, digitalization, and engineering expertise.”
Source link: Machinery-market.co.uk.
