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Sport Bumper Specification Example for Workshop Replacements: Vented Design

Source:Steel Wheel Hub / Time:2026-09-18

Sport Bumper Specification Example for Workshop Replacements: Vented Design

This is a worked specification for sport bumper in a vented design 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 vented design version exists because the duty cycle on workshop replacements is not the same as on a showroom vehicle. Where the two are specified identically, something fails later — usually inconsistent hardness between lots.

Sport Bumper

Example specification

ItemSport Bumper
ApplicationWorkshop Replacements
VersionVented Design
Base materialNeoprene
Controlled dimensions5 key dimensions, recorded per lot
Tolerance band±0.1 mm
Finishas machined
MOQ2,000 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 — Neoprene, 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.

Sport Bumper example

Processes involved

  • surface grinding
  • precision stamping
  • sintering
  • assembly line testing
  • robot welding
  • die casting

Where this example applies

Programmes that run vented design most often specify this build for workshop replacements. Related applications include city buses, racing teams, trailer axles, rental motorcycles, utility trailers.

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 is the minimum order quantity?

The standard MOQ is 2000 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.

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.

Do you handle mixed containers?

Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 2000 pieces per line.

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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