Germany/Nigeria: United Cement Company of Nigeria (UNICEM) has ordered the largest Loesche mill to date, a LM 70.4+4. The new LM 70.4+4 will have an output of 370t/hr at 4,700 Blaine in UNICEM's new line in Calabar, Nigeria. The delivery period is 14 months.
The 4+4 concept follows mill types with 2+2 and 3+3 rollers. The 4+4 grinding concept is intended to allow high throughput capacity or it can run in 2+2 roller operation, generating a mill output of 60%.
Loesche will use the Cope gearbox, which was developed in cooperation with Renk and offers a redundancy of up to eight motors at the motor end. With all eight motors in operation, a capacity totaling 8.8MW is achieved. The new Cope gearbox contributes the feature of working without a variable speed drive and operating with a reduced number of motors