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Case Study: Expansion Tank Supply for an agricultural cooperative in North America

Source:Case / Time:2026-09-18

Expansion Tank for An agricultural cooperative in North America

An agricultural cooperative came to us with a expansion tank programme for North America. 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

  • Documentation that arrived after the container shipped
  • Packing that arrived crushed at the port
  • Lead time that slipped twice before bulk started

Expansion Tank case study

What was specified

PartExpansion Tank
ClientAn agricultural cooperative
MarketNorth America
Volume50,000 pieces across 3 specifications
Base materialCeramic Composite
Sampling rounds4
Delivery window10 weeks from PO to ex-factory
ComplianceE-mark

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

  • 50,000 pieces delivered inside the 10-week window.
  • Unit cost held within 1.5% of the original quotation.
  • Inspection-related rejection stayed under 1.5%.
  • 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?

Ask for the current catalogue and the specification sheet for this line.

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