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GBM Product Guide 48 Series System0 pages
GUIDED BORING - 48 SERIES SYSTEM
The GBM 48 Series was made essential with GBM projects
trending towards 400-ft. + (122 m) installations. The GBM 48
Series jacking frames features 30% more rotational torque
than other GBM jacking frame models. They operates in
0-10,500-ft-lbs. and 0-26,000-ft-lbs. ranges of force to match
tooling requirements. Each torque range offers two rotational
drive speed options with 35 and 50-rpms in low and 23 and 35
rpms in high torque. The frame features 100-ton fast and 265-
ton slow jacking force speeds with 100 tons of pull-back force.
GBM 48 Series frames are able to install up to 48-in. (1,219 mm)
OD pipe in 8-ft. (2.4 m) lenghts for a minimum 15-ft. (4.6 m)
shaft. Frame skid base extensions are available for 10 and 20-
ft. (3,6 m) pipe lengths. The frame's 7.5-in. (191 mm) cylinders
have either a 30-in. (762 mm) or 40-in. (1,016 mm) stroke, and
latch on center every 12-in. (305 mm).
Two power pack systems are available to operate the GBM
48 Series jacking frame. The P250D Power Pack features a six-
cylinder, liquid-cooled, 250 HP (186 kW) diesel engine. The
P150Q has a four-cylinder, liquid-cooled 154 HP (115 kW)
diesel engine. It has three hydraulic-circuits for independent
control of the auger and cutter bit drives and jacking thrust.
Both power packs meet tier three standards and operate with
an in-shaft remote pendant.
The PCH upsizing tool offers more flexibility in soil conditions
for rapid and accurate bores. The jetting ports in the cutter
face attach to a single hose that distributes water to its four
nozzles. There are three pipe lubrication ports located in the
rear of the machine. All PCHs feature independent cutter face
and auger drive motors for lower jacking force and a faster
advance rate. A P250D power pack is required to operate the
48 Series Jacking Frames with PCH tooling.
Specifications
Product | Min. Shaft Size | Max. Thrust | Max. Torque | Weight |
48 Series | 15' (4.6 m) | 265 ton (240 mt) | 26,000 Ibf-ft (36,251 N-m) | 13,000 lbs (5.897 kg) |
Note: Akkerman standard sizes can be customized to suit project needs.
*Bolt-on increase kits are available to meet specific pipe diameters.
"60-inch (1,524 mm) pilot tubes are available upon request.
Product | Min. Shaft Size | Max. Pipe OD | Max. Torque | Weight |
PCH 36 | 12' (3.7 m) | 36" (914 mm) | 20.000 Ibf-ft (27,120 N-m) | 7,300 lbs (3,319 kg) |
PCH 44 | 12' (3.7 m) | 44- (1,118mm) | 20.000 Ibf-ft (27,120 N-m) | 11,000 lbs (5,000 kg) |
Product | HP | Fuel Tank Capacity | Hydraulic Reservoir | Weight |
PI 50Q | 154 HP (HSkW) | 100 gal (378 L) | 50 gal (189 U | 8,500 lbs (3,855 kg) |
P250D | 250 HP (186kW) | 275 gal (1,041 L) | 80 gal (303 L) | 15,500 lbs (7,031 kg) |
Product | Length | OD | Max. Thrust/ Torque | Assembly Weight |
16" HD Notched Thrust Casings | 39.6' (1 m) | 16-00 (406 mm) | 200 ton (181 mt) | 278 lbs (126 kg) |
30 Pilot Tubes" | 30" (762 mm) | 4.1- (104 mm) | 12.000 Ibf-ft (16,272 Nm) | 1,050 lbs (476 kg) |
The GBM 48 Series Jacking Frame is capable of
installing up to 48-inch (1,219 mm) pipe, two-
meters in length. It features independent jacking,
rotation and cutter bit operation.
The P250D Power Pack features a six-cylinder,
liquid cooled, 275 HP (205 kW) diesel engine with
three variable piston pumps for independent
operation of the jacking, rotation and PCH.
The P150Q Power Pack features a four-cylinder,
liquid cooled, 154 HP (115 kW) engine with three
variable-piston pumps for independent operation
of the jacking, rotation and PCH.
The large diameter PCH 36 and PCH 44 reduce
jacking force and lubricate spoils at the face of the
bore for ease in removal.
All PCHs feature independent cutter face and
auger drive motors for lower jacking force and a
faster advance rate.
The notched thrust casing assembly features
symmetrical notched connections that are secured
with a casing collar and common hardware.
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