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Universal Roof Rack Specification Example for Export Programmes: Fixed Type

Source:USB Car Charger Adapter / Time:2026-09-18

Universal Roof Rack Specification Example for Export Programmes: Fixed Type

This is a worked specification for universal roof rack in a fixed 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 fixed type version exists because the duty cycle on export programmes 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.

Universal Roof Rack

Example specification

ItemUniversal Roof Rack
ApplicationExport Programmes
VersionFixed Type
Base materialAluminium Alloy
Controlled dimensions6 key dimensions, recorded per lot
Tolerance band±0.1 mm
Finishanodised
MOQ200 pieces per specification
Sampling14 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 — Aluminium Alloy, 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.

Universal Roof Rack example

Processes involved

  • rubber vulcanisation
  • surface grinding
  • heat treatment
  • gravity casting
  • ultrasonic cleaning
  • injection moulding

Where this example applies

Programmes that run fixed type most often specify this build for export programmes. Related applications include agricultural trailers, long-haul trucks, emergency vehicles, courier fleets, workshop replacements.

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

What testing is included?

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

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.

How long does sampling take?

Samples leave the factory in 14 working days, and each revision round adds about 3 days once you have seen the first piece.

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.

Send the part number, the annual volume and the target market, and we will come back with a specification and a sampling plan.

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