4812A Jacking Frame0 pages

Thrust Frame - 4812A
Part No. FA40034F
• Designed To Work In 144” Minimum ID Or Trenchbox Shafts •
• Independent Jacking, Rotation & Cutter Bit Operation •
• Capable Of Installing Pipe up to 48” OD & Two Meters In Length •
FEATURES
• Assembly consists of the frame, drive swivel adapter, alignment adapter, make up tool, and wrench set.
• Two speed hydraulic operator controlled thrust block advancement.
• One stage operation provides 67 inches (1,702 mm) of continuous thrust block advancement.
• Dual staging operation allows 87 inches (2,210 mm) of thrust block advancement.
• Dual rotation pressure control (0 to 10,500 ft-lbs, 0 to 20,000 ft-lbs).
• Hydraulic pressure gauges for monitoring jacking, auger rotation, and cutter bit system pressures.
• Quick coupler connections with lock for easy and secure hydraulic hose installation.
• Jacking functions 0 to 26 gpm @ 6,000 psi.
• Rotation functions 0 to 60 gpm @ 5,000 psi.
• Independent cutter bit function 50 gpm @ 5,000 psi.
• Independent control for hydraulic make-up tool.
• Powered Cutter Head (PCH) hydraulic control package included.
• Four adjustable legs with leveling screws for ease of frame height adjustment and leveling.
SPECIFICATIONS
Dimensions (width x length x height)
..... 84 x 137 x 84 in. (2,134 x 3,480 x 2,134mm)
Assembly Weight .............. 19,000 lbs. (8,636 kg)
Staging Position ....................... 20 in. (508 mm)
Cylinder Stroke ..................... 33.5 in. (851 mm)
Operating Pressure (Max.)
Jacking ..................... 6,000 psi ( 41,369 kPa)
Rotation .................... 5,000 psi ( 34,474 kPa)
Elevation* ......... 39 to 45 in. (991 to 1,143 mm)
* From shaft floor to drive center
Operating Grade (Max.) ............................... 10%
Rotational Torque .............. 10,500/20,000 ft-lbs
...................................... (14,238/27,120 N•m)
Jacking Force ....... 100/200 Ton (91/181 mt)
Pull Back Force ................. 100 Ton (91 mt)
Hydraulic Motor Speed ...................... 0 - 38 rpm
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GBM_4812, FA40034F