Welcome to Auto, Motorcycle Parts & Accessories official website!

Car Cooling System Specification Example for Utility Trailers: Two-Piece Construction

Source:Steel Spoke / Time:2026-09-18

Car Cooling System Specification Example for Utility Trailers: Two-Piece Construction

This is a worked specification for car cooling system in a two-piece construction 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 two-piece construction version exists because the duty cycle on utility trailers 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.

Car Cooling System

Example specification

ItemCar Cooling System
ApplicationUtility Trailers
VersionTwo-Piece Construction
Base materialCast Iron
Controlled dimensions3 key dimensions, recorded per lot
Tolerance band±0.1 mm
Finishpowder coated
MOQ3,000 pieces per specification
Sampling14 working days, 3 days per revision
ComplianceE-mark

How the example is built up

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

Car Cooling System example

Processes involved

  • laser cutting
  • cold forging
  • robot welding
  • surface grinding
  • sintering
  • gravity casting

Where this example applies

Programmes that run two-piece construction most often specify this build for utility trailers. Related applications include light trucks, rental motorcycles, fleet maintenance, scooter fleets, emergency vehicles.

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

Do you handle mixed containers?

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

What testing is included?

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

What is the minimum order quantity?

The standard MOQ is 3000 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.

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.

Share a sample or a drawing and we will quote against a written specification, not against a photograph.

Online customer service
WeChat contact
Customer service
Scan code to add Wechat (same mobile phone number)
Telephone consultation
Back to top