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Trailing Gantry

Assembly

Multi-car backup train towed behind the shield carrying power, hydraulics and material supply. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Trailing Gantry parts and their functions

22 top-level parts · 11,208 parts in total · full bill of materials below
Trailing Gantry parts diagram: 1 gantry frame car, 2 gantry support wheel, 3 power & service lines, 4 gantry rail section, 5 service pipe section, 6 pipe flange & gasket, 7 ventilation duct section, 8 ventilation fan, 9 dust scrubber, 10 walkway & platform plate, 11 handrail section, 12 stair & ladder, 13 HV cable reel, 14 hose reel, 15 refuge chamber, and 7 more. 11,208 parts in 22 top-level items.
Trailing Gantry parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Gantry Frame Car 5× Gantry frame cars
2 Gantry Support Wheel 2 parts 20× Gantry support wheels
3 Power & Service Lines 3 parts 1× Power & service lines
4 Gantry Rail Section 60× Rail section on which the trailing gantry rolls over the lining invert.
5 Service Pipe Section 320× Flanged pipe section of the water, air, grout or bentonite line along the gantry.
6 Pipe Flange & Gasket 340× Flange pair with gasket and bolts joining two pipe sections.
7 Ventilation Duct Section 90× Flexible or rigid duct section with cassette carrying fresh air to the face.
8 Ventilation Fan 2× Axial booster fan on the gantry.
9 Dust Scrubber 1× Wet scrubber cleaning the air returning from the face.
10 Walkway & Platform Plate 260× Grating or plate walkway section inside the shield or on the gantry.
11 Handrail Section 180× Tubular handrail section with posts.
12 Stair & Ladder 14× Access stair or ladder between gantry decks.
13 HV Cable Reel 1× Motorised reel paying out the trailing high-voltage cable.
14 Hose Reel 2× Reel for the trailing water or air supply hose.
15 Refuge Chamber 1× Sealed rescue chamber with breathing air for the crew.
16 Workshop & Store Container 2× Container on the gantry holding tools, spares and consumables.
17 Crew Room & Toilet 1× Crew break room and toilet module on the gantry.
18 Fire Suppression Unit 3× Detection and extinguishing system for the transformer, drives and hydraulics.
19 Cable Tray Section 240× Galvanised tray or ladder section carrying cables along shield and gantry.
20 Hex Bolt 3200× High-strength hex bolt, M12 to M36, used throughout the shield, gantry and equipment mounts.
21 Hex Nut 3200× Heavy hex or nyloc nut mating the bolts.
22 Washer 3200× Hardened flat or spring washer.

3D model

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Build & assembly graph

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Bill of materials for Trailing Gantry

22 top-level lines · 27 rows shown · 11,208 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Gantry Frame Car tbm-gantry-frame 5× 5 · part
2 Gantry Support Wheel 2 parts tbm-gantry-wheel 20× 20 3 assembly
2.1 Ball Bearing ball-bearing 2× 40 · part
2.2 Wheel Tread tbm-wheel-tread 1× 20 · part
3 Power & Service Lines 3 parts tbm-supply-line 1× 1 26 assembly
3.1 Wire Bundle wire-bundle 1× 1 · part
3.2 Service Hose Reel tbm-hose-reel 1× 1 · part
3.3 Connector connector 24× 24 · part
4 Gantry Rail Section tbm-gantry-rail 60× 60 · part
5 Service Pipe Section tbm-service-pipe 320× 320 · part
6 Pipe Flange & Gasket tbm-pipe-flange 340× 340 · part
7 Ventilation Duct Section tbm-ventilation-duct 90× 90 · part
8 Ventilation Fan tbm-vent-fan 2× 2 · part
9 Dust Scrubber tbm-dust-scrubber 1× 1 · part
10 Walkway & Platform Plate tbm-walkway 260× 260 · part
11 Handrail Section tbm-handrail 180× 180 · part
12 Stair & Ladder tbm-gantry-stair 14× 14 · part
13 HV Cable Reel tbm-cable-reel 1× 1 · part
14 Hose Reel tbm-water-hose-reel 2× 2 · part
15 Refuge Chamber tbm-refuge-chamber 1× 1 · part
16 Workshop & Store Container tbm-workshop-container 2× 2 · part
17 Crew Room & Toilet tbm-mess-room 1× 1 · part
18 Fire Suppression Unit tbm-fire-suppression 3× 3 · part
19 Cable Tray Section tbm-cable-tray 240× 240 · part
20 Hex Bolt tbm-hex-bolt 3200× 3,200 · part
21 Hex Nut tbm-hex-nut 3200× 3,200 · part
22 Washer tbm-washer 3200× 3,200 · part

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Where the trailing gantry 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