Private company

Westfalia Dinnendahl Gröppel

Logo: Unknown author Unknown author, Public domain, via Wikimedia Commons3

Defunct German mechanical engineering company

Westfalia Dinnendahl Gröppel (WEDAG; formerly Eisenhütte Westfalia, R.W. Dinnendahl AG, and Fr. Gröppel, C. Lührigs Nachf) was a German mechanical engineering company founded in 1872. It was primarily known for manufacturing coal and water processing plants used in the mining industry.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

  • Industryvehicle construction1
  • HeadquartersBochum1
  • Legal formAktiengesellschaft1
Ekof Bochum
Photo: Cschirp, CC BY-SA 3.0 de, via Wikimedia Commons4

Westfalia Dinnendahl Gröppel (WEDAG; formerly Eisenhütte Westfalia, R.W. Dinnendahl AG, and Fr. Gröppel, C. Lührigs Nachf) was a German mechanical engineering company founded in 1872. It was primarily known for manufacturing coal and water processing plants used in the mining industry. In 2001, the company merged to KHD Humboldt Wedag.2