Gebr Pfeiffer has been awarded its first contract to supply MVR mills to Indonesia. The mills will be set up at Grobogan cement plant located close to Semarang in Central Java.

The package includes two MVR 5000 C-4 mills for cement grinding and one MVR 5000 R-4 for raw material grinding and a MPS 3350 BK mill for grinding lignite.

The cement mills, each featuring a drive power of 4000kW, will be capable of grinding 190tph of OPC at 3600 Blaine or PPC at 4000 Blaine. The mills will also be suitable for grinding blastfurnace cements. 

The MVR 5000 R-4 with a drive power of 4300kW is guaranteed to achieve a capacity of 500tph of raw meal ground to a fineness of 12 per cent R90µm.

Furthermore, Gebr Pfeiffer will deliver an MPS 3350 BK mill with a drive power of 800kW for the grinding of lignite. The lignite to be processed has a high feed moisture (37 per cent), which is typical for Indonesia. The inherent moisture content in the lignite is 14 per cent. The mill will dry the material to a surface moisture content of one per cent while at the same time grinding it at 50tph to a fineness of 15-25 per cent R90µm.

The order also includes a spare parts package for two-year operation. The essential modules of all three MVR mills will have the same design and therefore, are interchangeable.

The order was placed by the Chinese general contractor Nanjing Kisen and commissioning of the mills is scheduled for the first half of 2019.