Selection Criteria

Cutters

DH Machine

DH-FS Machine

DH-L Machine

DH-U Curved Machine

DT Machine

BM EPB Segmental 

Slurry Pumps

Guidance Systems

Jacking Systems

Rasa Island

Thrust Reducer

Jacking Layout

Treatment Systems

Beachwalk Project

Microtunneling, Inc. are exclusive agents in North and South America for Rasa 

MTBM, TBM, EPB, Slurry Shields, and Segment Shields.

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Unicorn Slurry Pipe Jacking Machine for
Boulder and Rock Layer Applications

Model DH 600 - 2600mm

Rasa DH Machine Drawing

Three Outstanding Features

1. Powerful Crushers
The primary and secondary crushing mechanisms that are driven by large torque power are provided.
2. Greater Applicability
With a variety of cutter disks available, the machine can be used for excavating through various types of soils.
3. Economy
Its simple construction and remote control for various functions will reduce the running cost to a minimum.

Rasa DH Roller Bit

Rasa DH Unicorn Machine

Applicability of Cutter Size to Maximum Gravel Size

Specifications of DH Type Machine

I.D. Dimensions (mm) øDxL Weight (t) Power (kWxset) Torque (kN·m) Revolution (min-1) Steering Jack (kNxstxset) Hydraulic Unit (kW) Piping in Shield Body (mm)
50Hz 60Hz 50Hz 60Hz
ø600 790 x 2485 3.6 7.5 x 2 19 16 7.6 9.1 160 x 20 x 4 0.75 100
ø700 910 x 2575 4.0 11 x 2 33 28 6.4 7.6 270 x 30 x 4 0.75 100
ø800 990 x 2575 5.0 7.5 x 3 42 35 5.2 6.2 270 x 30 x 4 0.75 100
ø900 1110 x 2585 6.7 11 x 3 73 60 4.3 5.2 370 x 30 x 4 2.2 100
ø1000 1230 x 2600 8.0 11 x 3 80 66 4.0 4.8 420 x 30 x 4 1.5 100
ø1100 1340 x 2860 9.5 15 x 3 101 84 4.2 5.1 420 x 30 x 4 1.5 100
ø1200 1460 x 2860 12.0 15 x 3 122 101 3.5 4.2 420 x 50 x 4 1.5 100
ø1350 1630 x 3015 13.0 22 x 3 201 168 3.1 3.8 750 x 50 x 4 2.2 150
ø1500 1810 x 3105 17.0 22 x 3 250 209 2.5 3.0 750 x 50 x 4 3.7 150
ø1650 1980 x 3150 21.0 22 x 3 314 262 2.0 2.4 1000 x 50 x 4 3.7 150
ø1800 2150 x 3320 25.0 18.5 x 4 411 342 1.7 2.1 630 x 50 x 8 3.7 150
ø2000 2375 x 3495 28.0 22 x 4 557 464 1.5 1.8 750 x 100 x 8 3.7 150
ø2200 2610 x 3920 37.0 30 x 3 561 467 1.5 1.8 1000 x 100 x 8 3.7 150
ø2400 2840 x 3990 41.5 30 x 4 758 632 1.5 1.8 1000 x 100 x 8 5.5 150
ø2600 3070 x 3990 47.0 30 x 4 850 730 1.3 1.6 1000 x 100 x 8 5.5 150

Contact Timothy Coss, President, Microtunneling, Inc.

timcoss@microtunneling.com

Phone +1 303-444-2650

Fax     +1 303-444-0889