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Case Study: Brake Master Cylinder Supply for an e-commerce seller in Europe

Source:Case / Time:2026-09-18

Brake Master Cylinder for An e-commerce seller in Europe

An e-commerce seller came to us with a brake master cylinder programme for 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

  • Inconsistent hardness between lots
  • A fitment that looked right on paper and failed on the bench
  • Warranty claims traced back to a single lot

Brake Master Cylinder case study

What was specified

PartBrake Master Cylinder
ClientAn e-commerce seller
MarketEurope
Volume50,000 pieces across 2 specifications
Base materialSintered Metal
Sampling rounds3
Delivery window5 weeks from PO to ex-factory
ComplianceTUV

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.

Brake Master Cylinder production run

Result

  • 50,000 pieces delivered inside the 5-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

Fix the specification count early. Adding variants after production starts is the most expensive change a client can request.

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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