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Case Study: Knock Sensor Supply for a regional distributor in West Africa

Source:Case / Time:2026-09-18

Knock Sensor for A regional distributor in West Africa

A regional distributor came to us with a knock sensor programme for West Africa. 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
  • Lead time that slipped twice before bulk started
  • Documentation that arrived after the container shipped

Knock Sensor case study

What was specified

PartKnock Sensor
ClientA regional distributor
MarketWest Africa
Volume2,000 pieces across 4 specifications
Base materialBrass
Sampling rounds4
Delivery window6 weeks from PO to ex-factory
ComplianceE-mark

How it was resolved

  1. The specification was rebuilt around Brass 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.

Knock Sensor 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

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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