Model ZM1600 Mill Gear Drive Unit
| Original manufacturer |
Mafa Dessau, GDW |
| Used for |
Cement mills |
| Rating / Motor rating |
1,600 kW |
| Design factor / Factor KA |
1.6 (no standardised design method) |
| Driving speed |
1,000 rpm |
| Transmission ratio |
58.79 and 54.10 |
| Bearings fitted |
Plain journal bearings |
| Weight of gear drive unit |
approx. 80,000 kg (without auxiliary drive) |
| Rehabilitation capability of the original gear drive |
Expensive because of bulky and heavy components. Gears with hardened and tempered teeth and not designed to meet fatigue strength requirements. |
Variant 1 Replacement:
Vakoma 1606V-1 Gear Drive Unit
| Rating |
1,600 kW |
| Factor KA |
2.0 (designed to DIN 3990) |
| Driving speed |
1,000 rpm |
| Transmission ratio |
57.975 |
| Bearings fitted |
Antifriction bearings |
| Weight |
approx. 54,000 kg
With baseframe to suit the foundation. |
Variant 1 Replacement:
Vakoma 1606V-2 Gear Drive Unit
| Rating |
1,600 kW |
| Factor KA |
2.0 (designed to DIN 3990) |
| Driving speed |
1,000 rpm |
| Transmission ratio |
54.497 |
| Bearings fitted |
Antifriction bearings |
| Weight |
approx. 54,000 kg |
Note
The ZM1600 gear drive would be replaced with Vakoma 1606V-1 und Vakoma 1606V-2 gear drive units equipped with gears designed to meet fatigue strength requirements. Antifriction bearings designed for > 100.000 h (approx. 14 years). Output shaft with or without throughhole. Minor modifications necessary so as to suit the foundation; relevant co-ordination is recommended. It would be appropriate to have a replacement gear drive unit delivered with a new auxiliary gear drive. An output-end membrane clutch could be accommodated in the design.
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