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Case Study: Rack End Supply for an online marketplace seller in North America

Source:Case / Time:2026-09-18

Rack End for An online marketplace seller in North America

An online marketplace seller came to us with a rack end 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

  • A specification nobody had written down
  • A supplier who changed material without saying so
  • Reorders that did not match the approved sample

Rack End case study

What was specified

PartRack End
ClientAn online marketplace seller
MarketNorth America
Volume20,000 pieces across 3 specifications
Base materialSintered Metal
Sampling rounds3
Delivery window5 weeks from PO to ex-factory
ComplianceIATF 16949

How it was resolved

  1. The specification was rebuilt around Sintered Metal 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.

Rack End production run

Result

  • 20,000 pieces delivered inside the 5-week window.
  • Unit cost held within 2.0% 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

Approve a pre-production sample made from the actual bulk material. Substitute material behaves differently in service.

Planning something similar?

Send the part number, the annual volume and the target market, and we will come back with a specification and a sampling plan.

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