How to Ensure a Smooth Electronics Manufacturing Transfer

How to Ensure a Smooth Electronics Manufacturing Transfer — Step by Step

Changing your EMS provider may seem like a straightforward process, but in practice it requires careful preparation. One of the biggest risks is not the production process itself, but the loss of project knowledge: engineering change history, process settings, test results, or detailed information about the components used.

That is why a well-managed transfer starts long before the project reaches the production line.

Step 1: Documentation and BOM audit

The first stage is to verify the completeness of the technical documentation. We review, among other things, the BOM, assembly documentation, test specifications, and engineering change history.

This stage may reveal outdated part numbers, EOL components, inconsistencies in the documentation, or missing information required to prepare the production process correctly.

If an alternative component is needed, its selection and qualification are carried out in consultation with the customer.

Step 2: Securing components and existing inventory

A production transfer often also involves components and materials remaining at the previous EMS provider. Depending on the project, we analyze the possibility of taking over or purchasing these stocks in order to reduce the risk of duplicate costs and help ensure production continuity.

At this stage, component availability and potential sourcing risks are also reviewed.

Step 3: Production process preparation and validation

Once the documentation has been organized, we move on to preparing the production process.

Elhurt EMS operates three SMT lines, two of which have been comprehensively modernized. In our quality control processes, we use technologies including SPI and AOI, as well as Flying Probe for selected projects, particularly in low-volume production where preparing a dedicated ICT fixture would not be economically justified.

Depending on the project requirements, dedicated test solutions may also be prepared or further developed.

Step 4: Pilot batch

The first batch after the transfer is used to validate the entire process under conditions as close as possible to serial production.

We verify, among other things, compliance with the documentation, test results, assembly quality, and any process deviations. Only after reviewing the results do we decide whether the project is ready to move into stable serial production or whether the process still requires adjustments.

Skipping this stage increases the risk that problems will only become visible at higher production volumes.

Step 5: Clear responsibility and continuity of communication

Throughout the transfer process, the customer has clearly assigned contacts responsible for the project, supported by a dedicated team covering the individual implementation stages.

This helps prevent project knowledge from becoming fragmented and allows decisions regarding documentation, components, testing, and production to be made efficiently and with full technical context.

As Sławomir Tkacz, Managing Director of Elhurt EMS, explains:

“We do not tell the customer: here is a catalogue of our capabilities, see if there is something that suits you. As an EMS company, we need to understand exactly what the customer expects.”

In a production transfer, this approach has very practical value: the better we understand the project at the beginning, the lower the risk of problems at later stages.

What we do not promise

A production transfer does not eliminate all project risk and does not replace the customer’s R&D team if the product requires design changes.

Elhurt EMS focuses on preparing the project for production, implementation, process optimization, assembly, testing, and integration. Designing electronics from scratch is not the core scope of our EMS activity and may be delivered through design capabilities available within the Group.

Our goal is not to promise a “problem-free transfer”, but to reduce risk through a structured process, validation, and clear responsibility at every stage.

When is the right time to discuss a transfer?

If you are considering changing your EMS provider, it is best to start the discussion before cooperation with your current supplier comes to an end. The earlier the documentation, BOM, engineering change history, and available inventory can be reviewed, the easier it is to plan the transfer without unnecessary production downtime.

Discuss your production transfer with the Elhurt EMS team.