Bearing lubricators on vibrating screens save up to 450,000 euros

By investing in an intelligent lubrication system for vibrating screen bearings, a crushed rock producer in Austria is saving up to 450,000 euros per year in maintenance costs and production downtime.

Located in Bad Deutsch-Altenburg in Austria, Hollitzer Baustoffwerke Betriebs-Gesellschaft mbH is part of the CEMEX Group. The Hollitzer quarry employs around 30 staff and specialises in crushed rock production for ready mixed concrete.

The quarry uses a combination of double and single platform circular vibrating screens to sieve the rocks prior to crushing. In the past, these vibrating screens have caused problems at the plant and have frequently had to be shut down due to bearing failure caused by insufficient bearing lubrication.

The latest vibrating screen was installed at the quarry in August 2006. After only a short time in operation, this machine suffered a bearing failure due to insufficient lubrication. The bearings support the screen arms, which have to perform heavy continuous oscillating movements. The screens must also withstand the very harsh, dusty conditions.