Cutterhead
AssemblyThe rotating steel wheel at the front of the machine. It presses its disc cutters against the rock face, picks up the broken rock with buckets at its rim and drops it into the muck chute, and sprays water at the face to keep down dust. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Cutterhead
11 top-level lines as of r193933| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Cutterhead Structure | main-beam-tbm-cutterhead-structure | 1× | 1 | · | part |
| 2 | 19-inch Disc Cutter 7 parts | main-beam-tbm-disc-cutter | 38× | 38 | 0 | assembly |
| 3 | 17-inch Center Cutter | main-beam-tbm-center-cutter | 8× | 8 | · | part |
| 4 | Cutter Housing | main-beam-tbm-cutter-housing | 46× | 46 | · | part |
| 5 | Cutter Wedge Lock | main-beam-tbm-cutter-wedge-lock | 46× | 46 | · | part |
| 6 | Muck Bucket | main-beam-tbm-muck-bucket | 8× | 8 | · | part |
| 7 | Bucket Lip | main-beam-tbm-bucket-lip | 8× | 8 | · | part |
| 8 | Bucket Grill Bars | main-beam-tbm-bucket-grill-bars | 8× | 8 | · | part |
| 9 | Cutterhead Wear Plates | main-beam-tbm-wear-plates | 1× | 1 | · | part |
| 10 | Face Spray Nozzle | main-beam-tbm-face-spray-nozzle | 16× | 16 | · | part |
| 11 | Cutterhead Rotary Union | main-beam-tbm-rotary-union | 1× | 1 | · | part |