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Off-The-Road (OTR) Tires Specification Example for Emergency Vehicles: Upgraded Version

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

Off-The-Road (OTR) Tires Specification Example for Emergency Vehicles: Upgraded Version

This is a worked specification for off-the-road (otr) tires in a upgraded version 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 upgraded version version exists because the duty cycle on emergency vehicles is not the same as on a showroom vehicle. Where the two are specified identically, something fails later — usually a specification nobody had written down.

Off-The-Road (OTR) Tires

Example specification

ItemOff-The-Road (OTR) Tires
ApplicationEmergency Vehicles
VersionUpgraded Version
Base materialNeoprene
Controlled dimensions5 key dimensions, recorded per lot
Tolerance band±0.5 mm
Finishpowder coated
MOQ500 pieces per specification
Sampling7 working days, 3 days per revision
ComplianceTUV

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.

Off-The-Road (OTR) Tires example

Processes involved

  • powder coating
  • heat treatment
  • precision stamping
  • shot blasting
  • assembly line testing
  • anodising

Where this example applies

Programmes that run upgraded version most often specify this build for emergency vehicles. Related applications include assembly programmes, aftermarket retail, boat trailers, city buses, long-haul trucks.

Checks before packing

  • Dimensional report against the approved drawing.
  • AQL 2.5 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

How long does sampling take?

Samples leave the factory in 7 working days, and each revision round adds about 3 days once you have seen the first piece.

Do you handle mixed containers?

Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 500 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 is the minimum order quantity?

The standard MOQ is 500 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.

Send the specification you are working to and we will confirm what we can match, what we would change and why.

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