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    • GRUNDOBURST 2500 G

    THE RENOVATOR

    GRUNDOBURST 2500G
    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
    • The GRUNDOBURST 2500G sets the benchmark for trenchless pipe renewal. It generates a maximum pulling force of 573,262.70 lbf (255 t). This allows the renewal of old pipes from ND 11.81 to ND 47.24 inches.
    • ΤαThe rods are 86.61inches long and weigh 462.97 lbf each. For steel pipe relining projects, mains lengths up to 4,199.46 ft can be pulled in.

    RENEWAL OF A COMBINED SEWER PIPE WITH GRUNDOBURST 2500G

    The town of Wiehl, located in the Oberbergisch District is not exactly large in terms of area and population, but nevertheless has quite a few interesting sights to offer. For instance, a public stalactite cave with an 868 m long tunnel system, a 13,4 km length panorama trail (the so-called “Beer Trail”), the “Axle, Wheel and Carriage” Museum, which presents the 5.500 year history of the automobile industry and a wildlife park with a 1,8 km long nature trail.

    This combined sewer was built about 50 years ago with reinforced concrete pipes with the nominal widths 600 and 700 mm, but now a camera inspection reported a series of cracks, fractures and tree ingrowth. A conventional sanitation was out of the question, as on the one hand, the cross-section had to be upsized and on the other hand, the static load of the damaged reinforced concrete pipes was no longer guaranteed, due to the excess cover, oppressive slope and the country road just above the slope.
    TECHNICAL SPECIFICATIONS
    PERFORMANCE DATA GRUNDOBURST 2500G TT B250 metrical GRUNDOBURST 2500G TT B250 imperial
     Dimensions of rig LxWxH: 2.950 x 1.600 x 1.500 mm 116.14 x 62.99 x 59.06 in
     Weight of rig: 4.100 kg 9,038.94 lbs
     Thrust:  1.055 kN 237,173.50 lbf
     Pulling force at 250 bar:  2.550 kN  573,262.95 lbf
     Pit size LxW: 9.000 x 2.500 mm  354.33 x 98.43 in
     Axle height:  500 mm  19,69 in
     Drive output at 2,000 rpm • 2,300 rpm • 3,000 rpm:  127 • – • – kW  127 • – • – hp
     Hydr. operating pressure:  250 bar  3,625.95 psi
     Old pipe Ø:  ND 300 – ND 1200 mm ND 11.81 – ND 47.24 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 1.200 mm up to OD 47.24 in
     For pipe materials:  PVC, PE, stoneware, grey cast iron, GFRP, steel  PVC, PE, stoneware, grey cast iron, GFRP, steel
     Bursting rod Ø:  140 mm  5,51 in
     Bursting rod Ø alternative:  – mm  – in
     Bursting rod weight:  210 kg  462.97 lbs
     Effective bursting rod length:  2.200 mm  86.61 in

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