Service · Portugal & Europe

Industrial Retrofit
Upgrade and Modernisation of Production Equipment

Prodiginvulgar retrofits production machines in Portugal and Europe — replacing obsolete control systems, modernising electrical installations and extending equipment working life without the cost of full machine replacement. Over 30 years of hands-on experience in automotive and aerospace environments.

All Services

What is an industrial retrofit?

An industrial retrofit is the upgrade or modernisation of existing production equipment — typically replacing obsolete control systems, worn mechanical components or outdated safety systems — without replacing the entire machine. The mechanical structure is kept and reused while the electrical, control and safety systems are replaced with modern equivalents. Retrofit extends the working life of production equipment, restores reliability, improves safety compliance and enables integration with modern factory systems — at a fraction of the cost of new equipment. In automotive and aerospace environments, retrofit also avoids the production disruption and validation work associated with introducing a completely new machine.

Industrial Retrofit Services

Machine modernisation that restores reliability and extends working life — practical retrofit for real production environments.

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Control System Replacement

Replacement of obsolete PLCs, relay logic panels and proprietary control systems with modern PLC hardware. Program migration from legacy systems, new HMI configuration and full recommissioning of the machine with updated documentation.

Electrical Installation Modernisation

Rewiring and modernisation of machine electrical panels, cable runs, terminal blocks and sensor wiring. Replacement of degraded components, improvement of cable management and update of electrical documentation to current standards.

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Safety System Upgrade

Replacement of outdated safety systems with modern safety PLCs, light curtains, safety mats and door interlocks. Risk assessment and safety validation documentation to bring machines into compliance with current machinery safety directives.

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HMI and Operator Interface Upgrade

Replacement of obsolete operator panels and monochrome displays with modern touchscreen HMIs. New screen design with improved operator guidance, alarm management and production data visualisation — connected to the new or existing PLC system.

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SCADA and Factory Network Integration

Integration of retrofitted machines with factory SCADA systems and production networks. Connection of modernised PLC systems to plant-level monitoring, production data collection and alarm management platforms.

Common Questions

What is an industrial retrofit?

An industrial retrofit is the upgrade or modernisation of existing production equipment — typically replacing obsolete control systems, worn mechanical components or outdated safety systems — without replacing the entire machine. Retrofit extends the working life of production equipment and restores reliability, often at a fraction of the cost of new equipment. The mechanical structure is retained and reused while electrical, control and safety systems are replaced with modern equivalents.

When should a machine be retrofitted instead of replaced?

A machine should be considered for retrofit when the mechanical structure is still sound but the control system is obsolete, spare parts are no longer available, or the safety system no longer meets current requirements. If the machine produces good parts but is unreliable due to control or electrical problems, retrofit is almost always more cost-effective than full replacement. A technical assessment of the specific machine is the right first step.

Can obsolete PLCs be replaced without losing the original program?

In most cases the original machine logic can be recovered and migrated to a modern PLC. If the PLC is still functional, the program can be read and converted. If it is no longer accessible, the machine sequence can be reverse-engineered from electrical drawings, relay diagrams and operational knowledge of the machine. The result is a modern PLC program that replicates the original machine behaviour with improvements where apprópriate.

How long does an industrial retrofit project take?

Retrofit project duration depends on the complexity of the existing machine, the scope of the upgrade and the available production downtime window. Simple control system replacements on straightforward machines may take days to a few weeks. Complex multi-axis machines with full PLC, HMI, safety system replacement and SCADA integration can take several weeks. Planning the retrofit around planned production shutdowns or maintenance windows is essential to minimise production impact.

What safety upgrades are typically included in a machine retrofit?

Safety upgrades in a machine retrofit typically include replacement of outdated safety relays with modern safety PLCs, addition of light curtains or safety mats where required by the risk assessment, updated emergency stop circuits, door interlock systems, guarding improvements and risk assessment documentation to demonstrate compliance with current machinery safety directives. Safety is always part of the retrofit scope — not an optional add-on.