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Semi Truck Axle Specification Example for Courier Fleets: Folding Type

Source:Off-Road Bumper / Time:2026-09-18

Semi Truck Axle Specification Example for Courier Fleets: Folding Type

This is a worked specification for semi truck axle in a folding type 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 folding type version exists because the duty cycle on courier fleets is not the same as on a showroom vehicle. Where the two are specified identically, something fails later — usually documentation that arrived after the container shipped.

Semi Truck Axle

Example specification

ItemSemi Truck Axle
ApplicationCourier Fleets
VersionFolding Type
Base materialPowder Coated Steel
Controlled dimensions5 key dimensions, recorded per lot
Tolerance band±0.1 mm
Finishpowder coated
MOQ1,000 pieces per specification
Sampling10 working days, 3 days per revision
ComplianceSGS

How the example is built up

  1. Start from the duty cycle, not from the catalogue photograph.
  2. Fix the base material in writing — Powder Coated Steel, 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.

Semi Truck Axle example

Processes involved

  • electroplating
  • surface grinding
  • gravity casting
  • anodising
  • die casting
  • CNC machining

Where this example applies

Programmes that run folding type most often specify this build for courier fleets. Related applications include three-wheelers, rental motorcycles, courier fleets, trailer axles, workshop replacements.

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

How long does sampling take?

Samples leave the factory in 10 working days, and each revision round adds about 3 days once you have seen the first piece.

What is the minimum order quantity?

The standard MOQ is 1000 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.

Can the specification be held on file?

Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the SGS-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.

Tell us the model, the fitment and the quantity and we will hold a production slot for you.

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