The GBM 240A is the industry-leading pilot tube system for accurately guiding horizontal auger bore equipment. With hundreds of systems being used globally, industry leaders rely on the accuracy and versatility that the 240A adds to their trenchless toolbox.
Features:
- Establish line and grade accuracy critical for gravity flow installations.
- Adjustable base frame adapter fits all major auger bore machines.
- Minimize project cost by reduced casing diameter requirements.
- Achieve longer auger bore installations with straight alignments.
- Avoid tripping augers to survey alignment and adjust for deviations during standard boring.
- Probe for obstructions or detail changing ground conditions along the alignment during the pilot tube installation.
- Utilize for several other trenchless installations such as guided pipe ramming, guided reaming, probing, pipe roofing, foundation securing, geothermal, etc.
- Utilize as a stand-alone system in a 10-ft shaft to direct install product pipe up to 24in OD.
- Installs pilot tubes in a wide range of ground conditions including rock.

GBM 240A Jacking Frame
Specifications
Model | Torque | Thrust/Pullback | Weight |
---|---|---|---|
240A | 10,500 ft-lbs. | 100/50 ton | 4,500‐lbs. |
Model | HP | Hydraulic | Control |
---|---|---|---|
P4075D | 75hp Diesel | (2) – Variable Piston | Remote Pendent |
P100E | 100hp Electric | (2) – Variable Piston | Remote Pendent |
Model | HP | Pump | Capacity |
---|---|---|---|
1525B/D | 20hp Diesel | 10gpm / 2,500 psi | 525 gal. |
1525B/E | 20hp Electric | 10gpm / 2,500 psi | 525 gal. |
1325B/G | 14hp Gas | 6gpm / 2,500 psi | 325 gal. |
Testimonials
We have been using Akkerman trenchless equipment for as long as we’ve been in the game. From TBMs to GBMs and related equipment, there is no other manufacturer in our opinion. The technology and equipment capabilities continue to advance. Akkermans after market
support always takes the time to assess and provide solutions to any challenges we’ve encountered.
