GBM 308A & 339A Jacking Frame - Akkerman

Equipment

Akkerman Inc.

The 308A and 339A GBM systems are ideal pilot tube systems for the direct installation of sewer and water infrastructure when space is limited. These latching style frames are designed for pilot tube microtunneling while decreasing social, environmental, and economic costs associated with other installation methods.

Features:
  • Minimize launch shaft requirements.
  • Direct install 1m long product pipe using Akkerman Powered Cutter or Reaming Heads.
  • Extendable base frame options for longer pipe.
  • Utilize in round or box shaft configurations.
  • Versatile GBM system can be used for several Pilot Tube applications
  • Hi-flow hydraulic valving with PCH controls standard.
  • Works with all existing Akkerman Dual Wall Pilot Tubes.
  • Ideal GBM system for manhole-to-manhole sewer applications.

Specifications
ModelThrust / TorqueMin ShaftMax Pipe OD
308A100 ton / 10,500 ft-lbs.8 ft28.5-in
339A100 ton / 10,500 ft-lbs.9 ft31.5-in

Power Pack Options

ModelHPHydraulicControl
P4075D75hp Diesel(2) – Variable PistonRemote Pendent
P100E100hp Electric(2) – Variable PistonRemote Pendent

Lube Pump Options

ModelHPPumpCapacity
2325B/D30hp Diesel6 & 10 gpm / 2,500 psi(2) – 325 gal.
2325B/E30hp Diesel6 & 10 gpm / 2,500 psi(2) – 325 gal.
1325B/G14hp Gas6 gpm / 2,500 psi325 gal.
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Testimonials

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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