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Case Study: Knock Sensor Supply for a delivery platform in Eastern Europe

Source:Case / Time:2026-09-18

Knock Sensor for A delivery platform in Eastern Europe

A delivery platform came to us with a knock sensor programme for Eastern 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
  • Lead time that slipped twice before bulk started
  • A fitment that looked right on paper and failed on the bench

Knock Sensor case study

What was specified

PartKnock Sensor
ClientA delivery platform
MarketEastern Europe
Volume5,000 pieces across 4 specifications
Base materialEPDM Rubber
Sampling rounds2
Delivery window5 weeks from PO to ex-factory
ComplianceISO/TS 16949

How it was resolved

  1. The specification was rebuilt around EPDM Rubber 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

  • 5,000 pieces delivered inside the 5-week window.
  • Unit cost held within 3.0% of the original quotation.
  • Inspection-related rejection stayed under 2.0%.
  • 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?

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

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