Equipment

Akkerman Inc.

Akkerman periphery drive slurry microtunneling systems (SLP) are designed to deliver powerful performance for extended distances and curved alignments.  These units include an on-board power pack with remotely selectable torque ranges to conquer changing ground conditions.  Like all Akkerman microtunneling systems, the SLP lineup is fully remote-controlled from the surface and offers face access for cutterhead inspection, tool replacement, or obstruction removal.

Features:
  • All SLP series microtunneling systems use the same Akkerman Microtunnel Control Container (MCC) as SLC models with the addition of a remotely controlled periphery drive power booster container.
  • Airlock kits available for pipe diameters of 78in ID and larger per PVHO and OSHA standards.
  • 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 encounter ground conditions.
  • Sealing system to 3 bar capacity.  Underwater retrieval compatible with sealed adapters.
  • 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 SLP systems compatible with Akkerman TGS guidance system.

MTBM SL60P
MTBM SL74P
MTBM SL82P
MTBM SL86P
MTBM SL100P
MTBM SL114P

Specifications
ModelPower /
Torque
Diameter /
Cut Dia.
Est. Weight
SL60P250 hp /
185,000 ft-lbf
60 in /
62 in
32,000 lbs
SL74P400 hp /
300,000 ft-lbf
74 in /
76 in
40,000 lbs
SL82P400 hp /
350,000 ft-lbf
82 in /
84 in
48,000 lbs
SL86P400 hp /
404,000 ft-lbf
86 in /
88 in
53,000 lbs.
SL96P500 hp /
500,000 ft-lbf
96 in /
98 in
60,000 lbs
SL114P500 hp /
600,000 ft-lbf
114 in /
116 in
80,000 lbs
  • Weights dependent on configuration of final unit.
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Testimonials

Pacific Boring, Inc.

Akkerman has proven to be the “go-to” manufacturer of American Made TBM’s, GBM’s, and pipejacking systems. This is not just based on the 13+ years I’ve been doing business with them, but the nearly 40-years of successful partnering between Pacific Boring and Akkerman, a relationship I look forward to continuing.

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Tunneling