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Case Study: Power Window Motor Supply for a construction contractor in Central America

Source:Case / Time:2026-09-18

Power Window Motor for A construction contractor in Central America

A construction contractor came to us with a power window motor programme for Central America. 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

  • Packing that arrived crushed at the port
  • Premature wear on the first batch
  • Lead time that slipped twice before bulk started

Power Window Motor case study

What was specified

PartPower Window Motor
ClientA construction contractor
MarketCentral America
Volume50,000 pieces across 2 specifications
Base materialHigh Density Foam
Sampling rounds2
Delivery window10 weeks from PO to ex-factory
ComplianceREACH

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.

Power Window Motor production run

Result

  • 50,000 pieces delivered inside the 10-week window.
  • Unit cost held within 2.0% of the original quotation.
  • Inspection-related rejection stayed under 2.0%.
  • 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?

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

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