Junker
Erwin Junker Machinery, Inc. of Elgin, Illinois is the US arm of Germany’s Junker Group — a specialist in high-speed CBN production grinding for automotive and supplier plants.
Independence note. Grinding Advisor is not affiliated with Junker. This page summarizes public information to help buyers evaluate the line.
Fast facts
| Headquarters | Erwin Junker Maschinenfabrik GmbH, Nordrach, Germany |
|---|---|
| US presence | Erwin Junker Machinery, Inc., Elgin, IL |
| Machine types | High-speed CBN cylindrical (OD/ID), centerless, non-cylindrical (cam/crank), profile and flute grinding; Zema corundum line |
| Official site | junker-group.com |
The company
Erwin Junker Machinery, Inc. (Elgin, IL) is the US arm of Erwin Junker Maschinenfabrik of Nordrach, Germany — a specialist in high-speed CBN production grinding: cylindrical, centerless, and non-cylindrical cam and crankshaft machines for automotive and supplier plants. The group’s Zema line covers corundum-wheel grinding.
What they build
US presence & contact route
Erwin Junker Machinery in Elgin, IL is the US route for new machines, applications work, parts and service.
What buyers ask
- CBN or corundum economics — at our volumes and wheel prices, which wins?
- Non-cylindrical work (cam, crank): what profile accuracy do we actually need?
- Junker CBN line or the Zema corundum line for our part mix?
- What does the test-grind process look like before a production commitment?
Grinding Advisor is an independent advisory service. It is not affiliated with, endorsed by, or a dealer or representative of any manufacturer listed here. Company and product names are trademarks of their respective owners and are used only to identify those companies and their products. Directory information comes from public sources and was last checked October 2026 — confirm specifications and contact details with the manufacturer.