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Fuel Storage System Specification Example for Trailer Axles: Racing Spec

Source:Adjustable Rear Suspension / Time:2026-09-18

Fuel Storage System Specification Example for Trailer Axles: Racing Spec

This is a worked specification for fuel storage system in a racing spec 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 racing spec version exists because the duty cycle on trailer axles is not the same as on a showroom vehicle. Where the two are specified identically, something fails later — usually a fitment that looked right on paper and failed on the bench.

Fuel Storage System

Example specification

ItemFuel Storage System
ApplicationTrailer Axles
VersionRacing Spec
Base materialCarbon Steel
Controlled dimensions4 key dimensions, recorded per lot
Tolerance band±0.05 mm
Finishas machined
MOQ200 pieces per specification
Sampling10 working days, 3 days per revision
ComplianceE-mark

How the example is built up

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

Fuel Storage System example

Processes involved

  • precision stamping
  • electroplating
  • gravity casting
  • sintering
  • robot welding
  • shot blasting

Where this example applies

Programmes that run racing spec most often specify this build for trailer axles. Related applications include courier fleets, three-wheelers, agricultural trailers, dealership service, fleet maintenance.

Checks before packing

  • Dimensional report against the approved drawing.
  • AQL 4.0 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 testing is included?

Standard lots ship with dimensional and hardness reports. E-mark documentation is issued with the shipment when your market requires it.

Do you handle mixed containers?

Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 200 pieces per line.

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.

Can the specification be held on file?

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

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

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