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Off-Road Bumper Specification Example for Racing Teams: Adjustable Type

Source:Engine Assembly / Time:2026-09-18

Off-Road Bumper Specification Example for Racing Teams: Adjustable Type

This is a worked specification for off-road bumper in a adjustable 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 adjustable type version exists because the duty cycle on racing teams is not the same as on a showroom vehicle. Where the two are specified identically, something fails later — usually premature wear on the first batch.

Off-Road Bumper

Example specification

ItemOff-Road Bumper
ApplicationRacing Teams
VersionAdjustable Type
Base materialPolypropylene
Controlled dimensions4 key dimensions, recorded per lot
Tolerance band±0.5 mm
Finishas machined
MOQ3,000 pieces per specification
Sampling7 working days, 3 days per revision
ComplianceECE R90

How the example is built up

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

Off-Road Bumper example

Processes involved

  • die casting
  • anodising
  • ultrasonic cleaning
  • precision stamping
  • gravity casting
  • surface grinding

Where this example applies

Programmes that run adjustable type most often specify this build for racing teams. Related applications include workshop replacements, agricultural trailers, export programmes, scooter fleets, three-wheelers.

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

Do you handle mixed containers?

Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 3000 pieces per line.

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.

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.

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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