19-inch Disc Cutter
AssemblyA back-loading single-disc cutter with a 483 mm (19 in) ring. The ring rolls on the rock face under a load of up to 311 kN and crushes it under the tip, and the cracks spreading between neighboring tracks break off chips. It is sealed, filled with lubricant and changed as one unit from inside the cutterhead. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for 19-inch Disc Cutter
7 top-level lines as of r193923| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Disc Cutter Ring | main-beam-tbm-cutter-ring | 1× | 1 | · | part |
| 2 | Disc Cutter Hub | main-beam-tbm-cutter-hub | 1× | 1 | · | part |
| 3 | Disc Cutter Shaft | main-beam-tbm-cutter-shaft | 1× | 1 | · | part |
| 4 | Disc Cutter Tapered Roller Bearing | main-beam-tbm-cutter-bearing | 2× | 2 | · | part |
| 5 | Disc Cutter Metal Face Seal | main-beam-tbm-cutter-seal | 2× | 2 | · | part |
| 6 | Disc Cutter End Cap | main-beam-tbm-cutter-end-cap | 2× | 2 | · | part |
| 7 | Cutter Ring Retainer | main-beam-tbm-cutter-ring-retainer | 1× | 1 | · | part |