Production Machine Retrofit
We retrofit production machines that are mechanically sound but technologically outdated. We replace unsupported PLCs and HMIs, legacy drives, control panels and wiring, and upgrade safety circuits to current standards. We design a new ergonomic HMI, add traceability and SCADA/MES integration, and preserve or improve the machine's functionality. A retrofit extends the useful life of existing equipment at significantly lower cost and downtime than a full replacement — while bringing the line up to a modern technical baseline.
The problem we solve
Machines running on unsupported PLCs, scarce spare parts, outdated safety, inability to integrate with modern traceability systems or poor diagnostics. Full replacement is often not justified — but the status quo creates continuous availability risk.
Typical applications
- PLC upgrade from legacy to modern platforms (e.g. S5/S7)
- HMI replacement and screen redesign
- New control panels and wiring
- Safety upgrade per EN ISO 13849
- Traceability and SCADA integration
ENOTECH's scope
- Technical assessment of the existing machine
- New control system and safety design
- Panel build and wiring
- Logic porting/redesign to new PLC
- Testing, training and documentation
- Technical support under SLA
Technologies we integrate
Related case studies
Filling machine retrofit
Full PLC/HMI/safety upgrade on an existing filling line.
FAQ
How much downtime does a retrofit require?+
We pre-fabricate and pre-wire off-machine so on-site downtime is minimal — typically a few days to two weeks.
Is original functionality preserved?+
Yes — while also improving ergonomics, diagnostics and safety.
Is CE conformity covered?+
When the retrofit is substantial we update the technical file and declaration of conformity.
Can we add traceability?+
Yes — barcode/RFID integration, electronic batch records and MES/ERP connectivity.
Do you provide training?+
We train operators and maintenance technicians on the new system.
Related services
Special Purpose Production Machines
Engineering and manufacturing of special purpose production machines with PLC, HMI, servo and vision. Mechanical design, FAT/SAT, commissioning and SLA-based support.
PLC, HMI & SCADA
PLC and HMI programming (Siemens, Mitsubishi, Schneider), SCADA, OPC UA and MES integration — with structured code, operator-focused HMI and documentation.
Servo, Motion Control & Indexing
Servo and motion control engineering: indexing, electronic cam, gearing and high repeatability on special machines and production lines.
Discuss your project with our engineers
Send us your technical requirements and we will revert with a proposed approach.