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Cutterhead

Assembly

Rotating steel wheel carrying disc cutters, driven by a ring of electric motors through a main bearing and reduction gearing. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Cutterhead parts and their functions

19 top-level parts · 3,447 parts in total · full bill of materials below
Cutterhead parts diagram: 1 cutting wheel structure, 2 disc cutter, 3 cutterhead drive motor, 4 main bearing, 5 gearbox housing, 6 helical gear pair, 7 main bearing seal assembly, 8 scraper tool, 9 bucket lip, 10 wear plate, 11 cutter housing bolt, 12 ring gear & bearing bolt, 13 foam injection nozzle, 14 rotary union, 15 copy cutter, and 4 more. 3,447 parts in 19 top-level items.
Cutterhead parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Cutting Wheel Structure 1× Welded cutting wheel
2 Disc Cutter 4 parts 38× Disc cutters
3 Cutterhead Drive Motor 4 parts 8× Cutterhead drive motors
4 Main Bearing 3 parts 1× Main slewing bearing
5 Gearbox Housing 8× Drive reduction gearboxes
6 Helical Gear Pair 16× Pinion / ring gear pairs
7 Main Bearing Seal Assembly 2 parts 1× Main bearing seal
8 Scraper Tool 160× Carbide-tipped scraper bolted to the cutting wheel face.
9 Bucket Lip 40× Hardened lip on a muck bucket opening of the cutting wheel.
10 Wear Plate 220× Replaceable hardfaced plate protecting the cutting wheel structure and rim.
11 Cutter Housing Bolt 608× 16 per disc cutter
12 Ring Gear & Bearing Bolt 320× Large bolt fastening the ring gear and main bearing to the cutterhead and shield.
13 Foam Injection Nozzle 12× Nozzle in the cutting wheel face injecting conditioning foam into the excavated soil.
14 Rotary Union 1× Multi-passage rotary joint feeding foam, water and grease into the rotating cutterhead.
15 Copy Cutter 2× Hydraulically extended cutter that enlarges the bore in curves.
16 Grease Line & Fitting 60× Grease line and fitting of the main bearing and seal lubrication system.
17 Heavy Structural Bolt 240× drive and gearbox mounts
18 Hex Nut 600× Heavy hex or nyloc nut mating the bolts.
19 Washer 600× Hardened flat or spring washer.

3D model

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Build & assembly graph

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Bill of materials for Cutterhead

19 top-level lines · 39 rows shown · 3,447 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Cutting Wheel Structure tbm-cutterhead-structure 1× 1 · part
2 Disc Cutter 4 parts tbm-disc-cutter 38× 38 6 assembly
2.1 Cutter Ring tbm-cutter-ring 1× 38 · part
2.2 Cutter Hub & Shaft tbm-cutter-hub 1× 38 · part
2.3 Ball Bearing ball-bearing 2× 76 · part
2.4 Oil Seal oil-seal 2× 76 · part
3 Cutterhead Drive Motor 4 parts tbm-drive-motor 8× 8 25 assembly
3.1 Stator Assembly 3 parts stator-assembly 1× 8 3 assembly
3.1.1 Stator Core (laminations) stator-core 1× 8 · part
3.1.2 Copper Winding copper-winding 1× 8 · part
3.1.3 Slot Insulation stator-insulation 1× 8 · part
3.2 Rotor Assembly 4 parts rotor-assembly 1× 8 19 assembly
3.2.1 Rotor Shaft rotor-shaft 1× 8 · part
3.2.2 Rotor Core rotor-core 1× 8 · part
3.2.3 Neodymium Magnet neodymium-magnet 16× 128 · part
3.2.4 Ball Bearing ball-bearing 1× 8 · part
3.3 Motor Housing motor-housing 1× 8 · part
3.4 Ball Bearing ball-bearing 2× 16 · part
4 Main Bearing 3 parts tbm-main-bearing 1× 1 123 assembly
4.1 Bearing Race tbm-bearing-race 2× 2 · part
4.2 Roller Element tbm-bearing-roller 120× 120 · part
4.3 Slew Ring Gear tbm-bearing-gear 1× 1 · part
5 Gearbox Housing gearbox-housing 8× 8 · part
6 Helical Gear Pair gear-pair 16× 16 · part
7 Main Bearing Seal Assembly 2 parts tbm-cutterhead-seal 1× 1 8 assembly
7.1 Oil Seal oil-seal 4× 4 · part
7.2 O-Ring Set oring-set 4× 4 · part
8 Scraper Tool tbm-scraper 160× 160 · part
9 Bucket Lip tbm-bucket-lip 40× 40 · part
10 Wear Plate tbm-wear-plate 220× 220 · part
11 Cutter Housing Bolt tbm-cutter-housing-bolt 608× 608 · part
12 Ring Gear & Bearing Bolt tbm-ring-gear-bolt 320× 320 · part
13 Foam Injection Nozzle tbm-foam-nozzle 12× 12 · part
14 Rotary Union tbm-rotary-joint 1× 1 · part
15 Copy Cutter tbm-copy-cutter 2× 2 · part
16 Grease Line & Fitting tbm-cutter-lubrication 60× 60 · part
17 Heavy Structural Bolt tbm-heavy-bolt 240× 240 · part
18 Hex Nut tbm-hex-nut 600× 600 · part
19 Washer tbm-washer 600× 600 · part

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Where the cutterhead is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Tunnel Boring Machine

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $0.50–$100. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳Foxconn
foxconn.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Flex (Singapore)
flex.com ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks
🇮🇳Dixon Technologies
dixoninfo.com ↗ 		Noida, IN Electronics contract mfg 1,000 pcs 6–10 wks
🇨🇳BYD Electronics
bydelectronic.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Venture Corp
venture.com.sg ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks