Welcome to Auto, Motorcycle Parts & Accessories official website!

Electric Gasoline Engine Specification Example for Delivery Vans: Sealed Unit

Source:Durable Electric Bicycle Tire / Time:2026-09-18

Electric Gasoline Engine Specification Example for Delivery Vans: Sealed Unit

This is a worked specification for electric gasoline engine in a sealed unit 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 sealed unit version exists because the duty cycle on delivery vans is not the same as on a showroom vehicle. Where the two are specified identically, something fails later — usually a fitment that looked right on paper and failed on the bench.

Electric Gasoline Engine

Example specification

ItemElectric Gasoline Engine
ApplicationDelivery Vans
VersionSealed Unit
Base materialReinforced Nylon
Controlled dimensions6 key dimensions, recorded per lot
Tolerance band±0.5 mm
Finishas machined
MOQ3,000 pieces per specification
Sampling7 working days, 5 days per revision
ComplianceSGS

How the example is built up

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

Electric Gasoline Engine example

Processes involved

  • precision stamping
  • cold forging
  • CNC machining
  • anodising
  • ultrasonic cleaning
  • gravity casting

Where this example applies

Programmes that run sealed unit most often specify this build for delivery vans. Related applications include trailer axles, rental motorcycles, racing teams, city buses, camper conversions.

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

How long does sampling take?

Samples leave the factory in 7 working days, and each revision round adds about 5 days once you have seen the first piece.

What testing is included?

Standard lots ship with dimensional and hardness reports. SGS 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 3000 pieces per line.

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

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