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Case Study: Expansion Tank Supply for a marine equipment dealer in Eastern Europe

Source:Case / Time:2026-09-18

Expansion Tank for A marine equipment dealer in Eastern Europe

A marine equipment dealer came to us with a expansion tank programme for Eastern Europe. The brief was ordinary and unforgiving at the same time: a fixed launch window, a landed cost that had to survive freight and duty, and a part that had to match an existing sample. This case records what was specified, what went wrong in sampling and how the bulk order landed.

The starting point

  • Packing that arrived crushed at the port
  • Reorders that did not match the approved sample
  • Premature wear on the first batch

Expansion Tank case study

What was specified

PartExpansion Tank
ClientA marine equipment dealer
MarketEastern Europe
Volume2,000 pieces across 2 specifications
Base materialChromed Steel
Sampling rounds2
Delivery window10 weeks from PO to ex-factory
ComplianceE-mark

How it was resolved

  1. The specification was rebuilt around Chromed Steel and the tolerance locked before bulk.
  2. A pre-production sample was approved and kept as the golden reference.
  3. Production ran with in-line inspection and a mid-run photo report.
  4. Cartons were packed to the client's own barcode and ratio specification.
  5. Documentation shipped with the goods instead of after them.

Expansion Tank production run

Result

  • 2,000 pieces delivered inside the 10-week window.
  • Unit cost held within 2.0% of the original quotation.
  • Inspection-related rejection stayed under 0.5%.
  • The specification is on file, so reorders reproduce the approved sample.

What we would repeat

Lock the material standard before sampling. Once the base changes, every downstream approval has to be redone and the calendar slips.

Planning something similar?

Share a sample or a drawing and we will quote against a written specification, not against a photograph.

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