Coal Pulveriser Solutions
Renold Gears has a unique replication program to provide interchangeable replacements for existing CE/Alstom coal pulverisers installed worldwide.
The worm gears can be manufactured from original drawings or by utilising an on-site 'profile plug lifting' technique using a two-part epoxy putty to produce a plug from the original manufacturer's worm shaft.
When hardened, the profile plug measurements are input into Renold profile-generating software to replicate the original profile, allowing the manufacture of a master worm, thread-milling cutter, thread-grinding wheel profile and gear-hobbing tool.
Replacement Worm Gears for CE Coal Pulverisers:
| Worm Gear Size Centre Distance | Gear Ratio | Mill Size CE Mill Numbers |
| 54.010" | 14 2/7 | 1003, 983, 963 |
| 48.010" | 13 3/7 | 943, 923, 903, 883 |
| 18 3/5 | 863, 843, 823 | |
| 41.010" | 17 1/5 | 803, 783, 763 |
| 36.010" | 13 5/6 | 753, 733, 713 |
| 15 1/5 | 703, 683 | |
| 16 1/5 | 743, 723 | |
| 30.010" | 12 2/5 | 673 |
| 14 2/5 | 663, 643 | |
| 27.010" | 10 4/5 | 633, 613, 593 |
| 13 1/2 | 623, 603, 583 | |
| 21.847" | 9 2/5 | 573 |
| 11 3/4 | 563, 543 | |
| 13 3/4 | 533, 533A | |
| 15 | 523, 503 |
