Industrial Automation
Control systems, user interfaces, and drives are modernized. Sustainable, energy-efficient, and compliant with the latest safety standards.
Autexis as Your Retrofit Partner
Your Partner for Modernizing Your Plants
Modernize what needs to change while retaining what still works. Upgrade control, drive, and safety systems while preserving proven mechanical equipment wherever possible.
We assess the existing system, develop a detailed modernization concept, and implement the retrofit within planned downtime windows. Existing mechanical equipment, control cabinets, and wiring are retained wherever technically and economically practical.
Control systems, HMIs, drives, and safety systems are upgraded where required, improving efficiency, energy performance, and maintainability.
The result: longer plant service life, improved spare-parts availability, greater efficiency, and a production system that can be maintained and expanded for years to come.
What Is a Retrofit?
Retrofit Means Modernization Instead of New Plant Construction
A retrofit replaces obsolete control, drive, and safety technology while retaining proven mechanical equipment wherever possible. Modernization is carried out within planned downtime windows to minimize disruption to production.
1
Sustainability
Existing mechanical equipment is retained. Only what is outdated is renewed.
Spare Parts Availability
Discontinued systems such as SIMATIC S5 and PLC-5 are migrated to current, supported platforms.
2
Safety to the Latest Standards
Safety systems and cybersecurity are updated in line with current standards and requirements.
3
Energy Efficiency
Modern drives and control systems reduce energy consumption while improving overall plant performance.
4
Our Offering
Retrofit Solutions
Modernization with planning, precision, and foresight. Step by step. Sustainable, safe, and energy-efficient through to implementation during downtime.
Retrofit Services
- Existing-system assessment: hardware, software, control cabinets, and safety systems
- Migration strategy tailored to your plant and requirements
- Electrical installation engineering and on-site technical supervision
- HMI modernization with intuitive operation, modern visualization, and integrated diagnostics and analytics
- Drive system modernization: variable-frequency drives, servo drives, and motion control
- Control cabinet engineering and coordination with implementation partners
- Commissioning and production handover within the planned downtime window
- Operator and maintenance training for the new system
Complementary Services
- Safety system upgrades in accordance with current standards using established safety platforms
- MES and ERP integration via the Autexis Digital Factory Platform
- Remote maintenance using Siemens, Ewon, or customer-specific solutions
- 24/7 support with service-level agreements tailored to your requirements
Impact
Up to 50% lower capital investment compared with a new plant
Minimal downtime, resource-efficient, and sustainable
10+ years of spare parts availability on modern platforms
Approach
From Concept to 24/7 Operation
One partner throughout the entire lifecycle—from consultation through planning to service.
Needs Analysis
Sparring
Solution Design
Feasibility
HW and SW
PLC / PCS / EPLAN
Qualification
Validation
On-Site Commissioning
SAT
Hypercare
Handover
Support & Maintenance
SLA 7×24×365
User Requirements Specification
Functional Specification
Architecture
Program
Acceptance,
Test Report
Acceptance
SAT Protocol
Checklist and Handovers
KPI Dashboard
In Time・In Cost・In Quality
Our References
One Partner.
Proven in Practice.

How a New Tank Farm Increases Production Flexibility
At its Bilten 1 production site, Läderach manufactures high-quality chocolate products for distribution to other company locations. Autexis integrated a new tank farm using its extensive process engineering expertise and experience in chocolate production.
Control System at End of Lifecycle, but the Mechanical Components Are Still Running?
Our engineering team will show you the best path to a modern plant.