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Case Study: Idler Pulley Supply for a construction contractor in North Africa

Source:Case / Time:2026-09-18

Idler Pulley for A construction contractor in North Africa

A construction contractor came to us with a idler pulley programme for North Africa. 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

  • Reorders that did not match the approved sample
  • Warranty claims traced back to a single lot
  • Documentation that arrived after the container shipped

Idler Pulley case study

What was specified

PartIdler Pulley
ClientA construction contractor
MarketNorth Africa
Volume2,000 pieces across 2 specifications
Base materialCeramic Composite
Sampling rounds3
Delivery window6 weeks from PO to ex-factory
ComplianceECE R90

How it was resolved

  1. The specification was rebuilt around Ceramic 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.

Idler Pulley production run

Result

  • 2,000 pieces delivered inside the 6-week window.
  • Unit cost held within 2.0% 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

Approve a pre-production sample made from the actual bulk material. Substitute material behaves differently in service.

Planning something similar?

Send the part number, the annual volume and the target market, and we will come back with a specification and a sampling plan.

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