Welcome to Auto, Motorcycle Parts & Accessories official website!

Case Study: Coil Spring Supply for a workshop chain in Oceania

Source:Case / Time:2026-09-18

Coil Spring for A workshop chain in Oceania

A workshop chain came to us with a coil spring programme for Oceania. 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

  • Warranty claims traced back to a single lot
  • A specification nobody had written down
  • Packing that arrived crushed at the port

Coil Spring case study

What was specified

PartCoil Spring
ClientA workshop chain
MarketOceania
Volume20,000 pieces across 4 specifications
Base materialZinc Plated Steel
Sampling rounds4
Delivery window6 weeks from PO to ex-factory
ComplianceISO 9001

How it was resolved

  1. The specification was rebuilt around Zinc Plated Steel 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.

Coil Spring production run

Result

  • 20,000 pieces delivered inside the 6-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 specification you are working to and we will confirm what we can match, what we would change and why.

Online customer service
WeChat contact
Customer service
Scan code to add Wechat (same mobile phone number)
Telephone consultation
Back to top