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Case Study: Expansion Tank Supply for a wholesale group in Europe

Source:Case / Time:2026-09-18

Expansion Tank for A wholesale group in Europe

A wholesale group came to us with a expansion tank programme for 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

  • A supplier who changed material without saying so
  • Documentation that arrived after the container shipped
  • Reorders that did not match the approved sample

Expansion Tank case study

What was specified

PartExpansion Tank
ClientA wholesale group
MarketEurope
Volume2,000 pieces across 6 specifications
Base materialCeramic Composite
Sampling rounds2
Delivery window6 weeks from PO to ex-factory
ComplianceCCC

How it was resolved

  1. The specification was rebuilt around Ceramic Composite 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 6-week window.
  • Unit cost held within 3.0% of the original quotation.
  • Inspection-related rejection stayed under 1.0%.
  • The specification is on file, so reorders reproduce the approved sample.

What we would repeat

Fix the specification count early. Adding variants after production starts is the most expensive change a client can request.

Planning something similar?

Tell us the model, the fitment and the quantity and we will hold a production slot for you.

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