Eschweiler is a German town in the state of North Rhine-Westphalia . It lies on the river Inde , near the German-Belgian-Dutch frontier , and about 15 km east of Aachen and 50 k west of Cologne . Eschweiler is a municipality in the district of Aachen in North Rhine-Westphalia in Germany on the river Inde , near the German-Belgian-Dutch frontier , and about 15 km east of Aachen and 50 km west of Cologne .