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Hydraulic Piston Specification Example for Municipal Fleets: Quick Fit Version

Source:Otr Tire Truck / Time:2026-09-18

Hydraulic Piston Specification Example for Municipal Fleets: Quick Fit Version

This is a worked specification for hydraulic piston in a quick fit 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 quick fit version version exists because the duty cycle on municipal fleets is not the same as on a showroom vehicle. Where the two are specified identically, something fails later — usually documentation that arrived after the container shipped.

Hydraulic Piston

Example specification

ItemHydraulic Piston
ApplicationMunicipal Fleets
VersionQuick Fit Version
Base materialHigh Density Foam
Controlled dimensions3 key dimensions, recorded per lot
Tolerance band±0.1 mm
Finishanodised
MOQ2,000 pieces per specification
Sampling7 working days, 3 days per revision
ComplianceSAE J431

How the example is built up

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

Hydraulic Piston example

Processes involved

  • surface grinding
  • CNC machining
  • assembly line testing
  • injection moulding
  • robot welding
  • cold forging

Where this example applies

Programmes that run quick fit version most often specify this build for municipal fleets. Related applications include emergency vehicles, utility trailers, municipal fleets, city buses, export programmes.

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 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 testing is included?

Standard lots ship with dimensional and hardness reports. SAE J431 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.

Do you handle mixed containers?

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

Ask for the current catalogue and the specification sheet for this line.

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