Tunnel Boring Machine - Series II0 pages

Tunnel Boring Machine - Series II
• Fully Sealed Drive System For Cutter Head •
• 3 Point Hydraulic Steering To Maintain Line & Grade •
• Bi-Directional, Variable Speed Cutter Head Rotation •
• Improved Hydraulic Controls For Ease of Operation •

420 TBM Series II

FEATURES
• Tunnel Boring Machines (TBM) are suitable where manned entry is permitted.
• Operator station pilot valves control TBM steering and spoil removal process. Also allows constant
monitoring of spoil conditions and line and grade accuracy.
• High torque hydraulic motors capable of 5,000 psi (with on-board power pack) rotate the inner drum and t t
cutter face to excavate soils.
• Three point hydraulic steering control to maintain line and grade.
• Sealed steering joint allows the TBM to be articulated and hydraulically steerable in any direction.
• Target on the face of the TBM provides strict line and grade with laser system (customer supplied).
• Cutter head can be accessed from the front of the TBM and the face of the bore for ease of obstruction
removal, changing the cutter head and to perform routine maintenance, all while underground.
• Torque wings provide an anti-roll function.
• Equipped with a methane gas detection system.
• Standard cutter heads: dirt/carbide and sand shelves.
• Optional closed face attachment is available for unstable ground conditions.
• Increase kits are available to match specific pipe OD.
SPECIFICATIONS
t TBMt
Wallt
Pipet Machinet
Cuttingt
D
t rive Motorst
Cuttingt t
t Modelt Thicknesst
IDtt
ODt t
Diametert
t 30 CID)t

Torque (ft-lbs)t *t
*
t
t
t
tt
t t
t t
Stdt t Max
t 48SCt
*t
N/At
48”tt
49.5”tt
3ttt
24,500tt
ttttttttttt
4t
33,000tt
t 420t
Bt
42”t
51”tt
52.5”tt
3ttt
26,000tt
ttttttttttt
4t
35,000tt
t 480t
Bt
48”t
58”tt
59.5”tt
4ttt
40,000tt
ttttttttttt
6t
61,000tt
t 540t
Bt
54”t
65”tt
66.5”tt
4ttt
48,500tt
ttttttttttt
6t
72,500tt
t 600t
Bt
60”t
72”tt
73.5”tt
5ttt
69,000tt
ttttttttttt
6t
83,000tt
t 660t
Bt
66”t
79”tt
80.5”tt
5ttt
76,500tt
ttttttttttt
6t
92,000tt
t 720t
Bt
72”t
86”tt
87.5”tt
6ttt
103,500tt
ttttttttttt
9t
155,000tt
t 780t
Bt
78”t
93”tt
94.5”tt
6ttt
115,000tt
ttttttttttt
9t
172,500tt
* steel casing wall thickness is typically 1/2”tt based on 3,000 psi operating pressure.
**

Cutting Speed
CW & CCW
0-16.3 rpm @60gpm
0-24.4 rpm @90gpm
0-15.5 rpm @60gpm
0-23.5 rpm @90gpm
0-19.7 rpm @120gpm
0-13.2 rpm @120gpm
0-16.6 rpm @120gpm
0-11.1 rpm @120gpm
0-14.5 rpm @120gpmt
0-9.6 rpm @120gpm
0-13.1 rpm @120gpmt
0-8.7 rpm @120gpm
0-7.7 rpm @120gpm
0-5.2 rpm @120gpm
0-7.0 rpm @120gpm
0-4.6 rpm @120gpm
TBMseriesII