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Case Study: Leaf Spring Supply for a delivery platform in Southeast Asia

Source:Case / Time:2026-09-18

Leaf Spring for A delivery platform in Southeast Asia

A delivery platform came to us with a leaf spring programme for Southeast Asia. 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
  • Lead time that slipped twice before bulk started
  • A specification nobody had written down

Leaf Spring case study

What was specified

PartLeaf Spring
ClientA delivery platform
MarketSoutheast Asia
Volume50,000 pieces across 2 specifications
Base materialHigh Density Foam
Sampling rounds2
Delivery window5 weeks from PO to ex-factory
ComplianceISO/TS 16949

How it was resolved

  1. The specification was rebuilt around High Density Foam 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.

Leaf Spring production run

Result

  • 50,000 pieces delivered inside the 5-week window.
  • Unit cost held within 4.5% of the original quotation.
  • Inspection-related rejection stayed under 0.5%.
  • 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?

Ask for the current catalogue and the specification sheet for this line.

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