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Case Study: Gearbox Solenoid Supply for a mining contractor in Southeast Asia

Source:Case / Time:2026-09-18

Gearbox Solenoid for A mining contractor in Southeast Asia

A mining contractor came to us with a gearbox solenoid 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

  • Documentation that arrived after the container shipped
  • Reorders that did not match the approved sample
  • Lead time that slipped twice before bulk started

Gearbox Solenoid case study

What was specified

PartGearbox Solenoid
ClientA mining contractor
MarketSoutheast Asia
Volume2,000 pieces across 3 specifications
Base materialSintered Metal
Sampling rounds2
Delivery window4 weeks from PO to ex-factory
ComplianceE-mark

How it was resolved

  1. The specification was rebuilt around Sintered Metal 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.

Gearbox Solenoid production run

Result

  • 2,000 pieces delivered inside the 4-week window.
  • Unit cost held within 1.5% 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?

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

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