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Auto Oil Separator Specification Example for Assembly Programmes: Long Life Version

Source:Car Door Assembly / Time:2026-09-18

Auto Oil Separator Specification Example for Assembly Programmes: Long Life Version

This is a worked specification for auto oil separator in a long life version programme. It is the document we would send a buyer who asks what exactly they are getting: the material, the dimensions that are actually controlled, the finish, and the checks that happen before anything is packed.

The long life version version exists because the duty cycle on assembly programmes is not the same as on a showroom vehicle. Where the two are specified identically, something fails later — usually lead time that slipped twice before bulk started.

Auto Oil Separator

Example specification

ItemAuto Oil Separator
ApplicationAssembly Programmes
VersionLong Life Version
Base materialEPDM Rubber
Controlled dimensions5 key dimensions, recorded per lot
Tolerance band±0.5 mm
Finishas machined
MOQ200 pieces per specification
Sampling10 working days, 3 days per revision
ComplianceISO 9001

How the example is built up

  1. Start from the duty cycle, not from the catalogue photograph.
  2. Fix the base material in writing — EPDM Rubber, in this example.
  3. List the dimensions that are actually controlled and the tolerance on each.
  4. Name the finish and what it has to survive.
  5. State the inspection level and who pays when a lot fails.

Auto Oil Separator example

Processes involved

  • die casting
  • CNC machining
  • powder coating
  • electroplating
  • anodising
  • rubber vulcanisation

Where this example applies

Programmes that run long life version most often specify this build for assembly programmes. Related applications include dealership service, workshop replacements, municipal fleets, scooter fleets, trailer axles.

Checks before packing

  • Dimensional report against the approved drawing.
  • AQL 2.5 sampling on the finished lot.
  • Finish inspection under agreed lighting.
  • Carton drop test on the first lot of a new packing specification.

Questions buyers ask

What happens if a lot fails inspection?

The lot is re-inspected against the golden sample, and replacement pieces ship on the next available booking at our cost.

Can you match an existing sample?

Send a sample and we will reverse-engineer the specification, then produce a counter sample for approval before any bulk starts.

Can the specification be held on file?

Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the ISO 9001-compliant build instead of a fresh interpretation.

How is packing specified?

Individual packing, inner box quantity and carton marking are confirmed at quotation stage so the cartons arrive ready for your warehouse.

Share a sample or a drawing and we will quote against a written specification, not against a photograph.

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