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Tandem Trailer Axles Specification Example for Dealership Service: Budget Line

Source:Racing Crankshaft Components / Time:2026-09-18

Tandem Trailer Axles Specification Example for Dealership Service: Budget Line

This is a worked specification for tandem trailer axles in a budget line 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 budget line version exists because the duty cycle on dealership service is not the same as on a showroom vehicle. Where the two are specified identically, something fails later — usually packing that arrived crushed at the port.

Tandem Trailer Axles

Example specification

ItemTandem Trailer Axles
ApplicationDealership Service
VersionBudget Line
Base materialSintered Metal
Controlled dimensions6 key dimensions, recorded per lot
Tolerance band±0.5 mm
Finishzinc plated
MOQ1,000 pieces per specification
Sampling14 working days, 5 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 — Sintered Metal, 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.

Tandem Trailer Axles example

Processes involved

  • shot blasting
  • surface grinding
  • gravity casting
  • CNC machining
  • electroplating
  • ultrasonic cleaning

Where this example applies

Programmes that run budget line most often specify this build for dealership service. Related applications include aftermarket retail, delivery vans, city buses, export programmes, passenger cars.

Checks before packing

  • Dimensional report against the approved drawing.
  • AQL 1.5 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

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.

Do you handle mixed containers?

Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 1000 pieces per line.

What testing is included?

Standard lots ship with dimensional and hardness reports. ISO 9001 documentation is issued with the shipment when your market requires it.

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.

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

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