Tunnel boring machine (TBM)
ø 2 438 - 4 267 mm Akkerman

Akkerman's manned Tunnel Boring Machines (TBM) are the epitome of pipejacking power, control and accuracy in an array of soil conditions. TBMs are suitable where manned entry is permissible. Akkerman TBMs can be used with any jacking pipe up to 14-feet (4.3 m) in diameter and a multitude of drive lengths. Designed for unequaled ease of set-up, the Akkerman system can typically be set up and ready to launch in one day. Excavator Shields removes obstacles at the face of the bore with a backhoe-type excavator. Excavator Shields are appropriate for 96-168-inch (2,438-4,267 mm) OD traditional pipejacking, liner plate and ring-beam and laggign tunnel buidling projects.

Tunnel Boring Machine (TBM) Series I & II
Akkerman offers various types of TBMs that range in size from 44" - 168" O.D.The dirt cutter head, carbide cutter head and sand shelves come standard with each TBM purchase. Exclusive to Akkerman, these three cutter head configurations can be changed underground. A closed face attachment is available for boring in unstable ground conditions.