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Case Study: Side Mirror Supply for a mining contractor in North America

Source:Case / Time:2026-09-18

Side Mirror for A mining contractor in North America

A mining contractor came to us with a side mirror 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

  • Premature wear on the first batch
  • Documentation that arrived after the container shipped
  • A specification nobody had written down

Side Mirror case study

What was specified

PartSide Mirror
ClientA mining contractor
MarketNorth America
Volume10,000 pieces across 3 specifications
Base materialNylon 66
Sampling rounds2
Delivery window8 weeks from PO to ex-factory
ComplianceCCC

How it was resolved

  1. The specification was rebuilt around Nylon 66 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.

Side Mirror production run

Result

  • 10,000 pieces delivered inside the 8-week window.
  • Unit cost held within 4.5% 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?

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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