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    • GRUNDOBURST 1250G

    THE RENOVATOR

    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

    PULLING FORCE MEASUREMENT GRUNDOLOG

    • Monitoring and logging of pulling force imparted on new pipe during installation
    • Performance categories: 150kN, 400kN, 1,250kN, 2,500kN
    • Self-sufficient storage and live transfer of data possible
    • 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
    TECHNICAL SPECIFICATIONS

    From GRUNDOBURST 1250G upwards a new power class begins. The GRUNDOBURST 1250G 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 TT B110 metrical GRUNDOBURST 1250G TT B110 imperial
     Dimensions of rig LxWxH:  2.300 x 1.100 x 875 mm  90.55 x 43.31 x 34.45 in
     Weight of rig:  3.120 kg  6,883.34 lbs
     Thrust:  395 kN  88,799.56 lbf
     Pulling force at 250 bar:  1.272 kN  285,957.05 lbf
     Pit size LxW:  6.500 x 1.700 mm  255.91 x 66.93 in
     Axle height:  360 mm  14.17 in
     Drive output at 2,000 rpm • 2,300 rpm • 3,000 rpm:  – • 55,1 • – kW  – • 73.89 • – hp
     Hydr. operating pressure:  250 bar  3,625.95 psi
     Old pipe Ø:  ND 150 – ND 600 mm  ND 5.91 – ND 23.62 in
     For pipe materials:  PVC, PE, stoneware, ductile/grey cast iron, AC, GFRP, steel  PVC, PE, stoneware, ductile/grey cast iron, AC, GFRP, steel
     New pipe Ø:  up to OD 630 mm  up to OD 24.80 in
     For pipe materials:  PVC, PE, stoneware, grey cast iron, GFRP, steel  PVC, PE, stoneware, grey cast iron, GFRP, steel
     Bursting rod Ø:  100 mm  3.94 in
     Bursting rod Ø alternative:  – mm  – in
     Bursting rod weight:  85 kg  187.39 lbs
     Effective bursting rod length:  1.700 mm  66.93 in

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