The process
Goods receipt and identification: the core is assigned to the part number and checked for completeness and housing damage. This is where it is decided whether it goes into production.
Disassembly: complete breakdown into individual parts. Housing, rotor, stator, regulator, rectifier and bearings are separated.
Cleaning: housing and mechanical parts are blasted, washed and degreased. Corrosion and deposits disappear.
Inspection and sorting: every part is measured and tested. Housing, rotor and stator are usually reusable; bearings, brushes, regulator and rectifier are always replaced.
Assembly: rebuild with new wear parts to OE specification, in some cases with updated components that fix known weaknesses.
Test bench and packaging: every exchange part is tested under load, documented and packed with a warranty.
What this means for cores
Because housings, shafts and castings are reused, exactly these parts of the core must be undamaged. Wear parts such as bearings, brushes, seals and pistons are replaced anyway, so their condition is irrelevant. That explains the acceptance criteria: housing intact, not opened, electronics present.
Remanufacturing is not repair
| Remanufacturing | Repair | |
|---|---|---|
| Scope | Complete disassembly, all wear parts new | Only the fault is fixed |
| Quality | OE specification, test bench, warranty | Depends on the workshop |
| Process | Industrial, in series | Case by case |
| Result | Exchange part as new | Repaired used part |
The role of the core broker
The remanufacturer needs a steady inflow of cores in the right variant. Deposit schemes cover part of that, but not all. The core broker closes the gap: he sources on the market, identifies, inspects and delivers type-sorted. Without this supply, the line stands still.
Frequently asked questions
Is a reman part as good as a new part?
It is rebuilt to OE specification and tested on the test bench. Known weaknesses are often fixed with improved components. Manufacturers give the same warranty as on new parts.
Why is it cheaper than new?
Because the most expensive parts, housings and castings, are not newly made. Studies by the European Remanufacturing Network put the typical market price at 60–80% of the new part price.