Equipment

Akkerman Inc.

Akkerman center drive slurry microtunnel systems (SLC) are designed to deliver maximum power directly to the rotating cutterhead and crushing chamber where it is needed. These systems use a proprietary water-cooled, variable frequency driven motor that is horsepower rated at the motor output coupled to a robust planetary gearbox for maximum torque while maintaining cutterhead speed.

Features:
  • All SLC series microtunnel systems are remotely controlled and can be operated by one common Akkerman Microtunnel Control Center (MCC).
  • Sizing kits available to accommodate multiple diameters with one MTBM.
  • Interchangeable cutterhead types: Soft Ground, Mixed Face, Rock
  • Selectable high pressure jetting nozzles to assist ground flow and cutting in cohesive soils.
  • Variable flow slurry routing to control hydrostatic balance to cutting head or plenum chamber based on encountered ground conditions.
  • Sealing system to 3 bar capacity.  Underwater retrieval compatible.
  • Mechanical and hydrostatic balancing with remote monitoring.
  • Active MTBM monitoring and report generation including gas detection, roll, slurry monitoring, steering position, guidance, electrical connectivity, and more.
  • All SLC systems compatible with Akkerman TGS guidance system.  SL60C and larger also compatible with Akkerman AZ100 guidance system.

MTBM SL30C
MTBM SL34C
MTBM SL36C
MTBM SL38.5C
MTBM SL44C
MTBM SL46C
MTBM SL51C
MTBM SL60C
MTBM SL74C

Specifications
ModelPower /
Torque
Diameter /
Cut Dia.
Est. Weight
SL30C75 hp /
38,000 ft-lbf
30 in /
31.5 in
13,000 lbs
SL34C75 hp /
44,000 ft-lbf
34 in /
35.5 in
16,000 lbs
SL36C75 hp /
61,000 ft-lbf
36 in /
37.5 in
18,000 lbs
SL38C75 hp /
61,000 ft-lbf
38.5 in /
40 in
18,500 lbs
SL44C75 hp /
61,000 ft-lbf
44 in /
45.5 in
21,500 lbs
SL51C125 hp /
86,000 ft-lbf
51 in /
52.5 in
25,500 lbs
SL60C250 hp /
213,000 ft-lbf
60 in /
62 in
36,000 lbs
SL74C250 hp /
213,000 ft-lbf
60 in /
62 in
42,000 lbs
  • Weights dependent on configuration of final unit.
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Testimonials

Engineering and Construction Innovations, Inc

At ECI, we perform a wide range of specialty services. We own and rent specialty drilling, tunneling, digging, grouting and pumping equipment from manufacturers all over the world. Akkerman is second to none, across all disciplines. We at ECI look forward to each and every project we get to work with Akkerman on.

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Tunneling