Checklist

Pharma Machine Retrofit Checklist

A practical checklist for engineering and maintenance teams reviewing whether a proven machine should be renewed instead of replaced.

Retrofit Decision 7 min technical read

Who this is for

Engineering, maintenance, QA/validation and procurement teams reviewing modernization or pre-owned machinery decisions.

Executive summary

A retrofit decision should start with the machine's current production value, not only its age. Many pharmaceutical machines remain mechanically useful while their PLC, HMI, servo drives, safety architecture, documentation or spare-part access become the real risk.

The checklist below is written for engineering, maintenance, QA and procurement teams preparing a validation-led modernization discussion. It helps separate urgent obsolescence from broader lifecycle renewal.

The goal is not to promise a fully compliant machine after retrofit. The goal is to create a controlled technical basis for the customer's own QA, CSV and validation process.

Technical guide

Decision points to review before scope is locked.

Start with machine identity and operating context

Confirm the exact manufacturer, model, serial number, current installed location, production role and product family handled by the machine.

Record the current PLC, HMI, drive, servo, safety and communication platforms before discussing replacement parts or software changes.

List repeated alarms, failure modes, rejected batches, difficult start-up behavior and maintenance interventions from recent production history.

Review automation, documentation and data integrity

Check whether software backups exist, whether they are version controlled and whether the customer can recover the machine after a hardware failure.

Review HMI usability, alarm clarity, recipe handling, user access levels, audit trail readiness and electronic record expectations.

Identify which data is created, stored, exported or manually transcribed. This is often where legacy machines create hidden validation pressure.

Define shutdown and commissioning constraints early

A strong retrofit plan should show what can be prepared before shutdown, what must happen during machine downtime and what evidence is needed after restart.

FAT, SAT, training, spare-part handover and documentation delivery should be planned before the technical scope is frozen.

Minimum planned downtime is a planning discipline, not a guarantee. It depends on access, machine condition, spare availability and site readiness.

Checklist

Use this before the first technical scope meeting.

Machine identity, serial number, current line role and production criticality are documented.PLC, HMI, drive, servo, safety and communication platforms are identified.Software backups, electrical drawings and maintenance records are available or listed as gaps.Alarm structure, recipe handling, user access and data export are reviewed.Spare-part exposure and vendor support status are understood.Shutdown window, FAT/SAT expectations and validation-support needs are defined.

Risk note

Keep the scope evidence-based.

Avoid starting with a component-shopping list. A retrofit scope should be built from risk, production value, validation impact and lifecycle support needs.

Related machine platforms

Tablet Presses & Tableting

Blister, Packaging & Cartoning Lines

Solid Dose Processing

Next step

Turn the guide into a machine-specific assessment.

Use this checklist before requesting a retrofit assessment so the first technical discussion can focus on risk, scope and controlled transition.

Contact or book a meeting

Use direct department emails, Phone / WhatsApp, or request an online appointment with your preferred date and time.

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