Case Study: Coil Spring Supply for a construction contractor in the Caribbean

Coil Spring for A construction contractor in the Caribbean

A construction contractor came to us with a coil spring programme for the Caribbean. 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
• Documentation that arrived after the container shipped
• A specification nobody had written down

What was specified

How it was resolved

1. The specification was rebuilt around Carbon Fibre Composite 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.

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 1.5%.
• The specification is on file, so reorders reproduce the approved sample.

What we would repeat

Keep one accountable owner on both sides. Most delays come from hand-offs, not from machines.

Planning something similar?

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