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The renavator


GRUNDOBURST 1250G

The best thing for pipe renewal

QUICKLOCK BURST RODS

  • Quick locking couplings without thread (QuickLock), no lubrication required, therefore no time consuming screwing together required
  • Quick rod insertion and removal
  • The rods are connected faster than threaded rods
  • Absolutely push and pull resistant
  • Able to negotiate bends
  • Integral production, therefore highly resistant to stress
  • Robust, low-wear as clamping is not required
  • No slipping back of the rods, due to direct force transmission
  • Rod system with convenient rod accessories
  • Longer service life than screwed rods
QuickLock bursting rods are available from 35 mm diameter for pipes from ND 50.
Other rod diameters: 54 mm, 75 mm, 100 mm, 120 mm and 140 mm.
  • Compact dimensions for small pits
  • Can be applied from a pit in both directions
  • Fast operating cycles and high output
  • Rapid rod pushing through old pipe and during new pipe installation
  • Quick to get started
  • All machine models have remote control
  • Low weight for easy transport
  • Accessories specific to the procedure
  • Stable and job-site specific construction to withstand the highest of loads and strain
  • Long service life and low maintenance effort
  • Ergonomic operation and high level of work safety
  • CE-certified

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TECHNICAL SPECIFICATIONS



From GRUNDOBURST1250G upwards a new power class begins. The GRUNDOBURST1250G generates a max. pulling force of 285,956.92 lbf (127.2 t). Depending on the method, it can renew damaged pipes from ND 5.90 to 23.62 inches in lengths of 984.25 ft up to approx. ≤ 3,280.84 ft can be pulled in if relining is applied. Furthermore, greater installation depths demand extreme pulling forces for displacing the soil. To meet these needs, the rods are manufactured with lengths of 66.93 inches they weigh 187.39 lbs each. Inserting and breaking away the rods is performed with a hoist from rig type 1250G upwards.

TECHNICAL SPECIFICATIONS

PERFORMANCE DATA
GRUNDOBURST 1250G
Dimensions of rig LxWxH [mm]:
90.55 x 43.31 x 34.45
Weigh of rig [kg]:
6,883.34
Thrust [kN]:
88,799.52
Pulling force at 250 bar [kN]:
285,956.92
Pit size LxW [mm]:
255.91 x 66.93
Axle height [mm]:
14.17
Recommended hydraulic station:
TT-B110
Drive output [kW]:
73.89 at 2,300 rpm
Hydr. operating pressure [bar]:
3,625.95
Old pipe Ø [mm]:
ND 5.91 - ND 23.62
For pipe materials:
VCP, PVC, PE, grey/ductile cast iron, AC, GFRP, steel
New pipe Ø [mm]:
up to OD 24.80
For pipe materials:
PE, PP, VCP, lead, ductile cast iron, GFRP, steel
Bursting rod Ø [mm]:
3.94
Bursting rod weight [kg]:
187.39
Effective bursting rod length [mm]:
66.93

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