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