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MINIMALLY INVASIVE

With the GRUNDOPIT KS50, gas, water, electricity and FTTH service connections are installed from the main line in the road in the smallest possible, round work pit (keyhole of just Ø 65 cm) or a narrow pit of just 65 cm in width directly into the house or into a small assembly pit in front of the house.
  • Drilling from out of the smallest round work pit, Ø 65 cm keyhole
  • Directional drilling with continuous detection
  • Simple operation via control panel with colour display
  • No pits on private properties, bore directly into the basement
  • Minimum excavating works – the job cannot be done with less
  • Only very small work area required, minor traffic impairment
  • Eco-friendly and gentle installation method
  • Minimal drilling fluid requirements
  • No elaborate asphalting necessary for restoring the keyhole
  • All connection jobs are carried out from the surface
  • Drilling lengths up to 50 m
  • Pipe diameter up to 90 mm

QUICKSTARTER

COMPACT, POWERFUL, PROFITABLE

CONTROL PANEL

  • Fully automatic drilling
  • Operation from the surface
  • Ergonomic mode of operation according to the latest standards
  • Directional detectable bore
  • High safety for the operator
  • Clearly arranged colour display with icons
  • Infinitely variable adjustment of the optimal drilling parameters
  • 01. Integrated machine control fully automatic drilling
  • 02. Fluid-assisted displacement drilling technique No 'flushing out of the bore cuttings'
  • 03. Small space between bore axis and bottom edge of machine direct connection of service pipe to the main line
  • 04. Integrated rod cleaning by means of high-pressure washing jet
  • 05. Minimally invasive drilling from out of the smallest possible working pit, Ø 650 mm 'Keyhole'
  • 06. Closed round frame design stably, flexibly directional (machine can rotate freely inside the keyhole)
  • 07. Integrated hydraulic bracing system short set-up times, safe installation

REQUEST FREE CONSULTATION NOW.

TECHNICAL SPECIFICATIONS



  • Drilling out of the smallest possible working pits, Ø 650 mm keyhole
  • Integrated machine control with fully automatic drilling operation (except steering movements)
  • Infinitely variable adjustment of the drilling parameters
  • Fully automatic rod handling
  • Enclosed round frame design
  • Clearly arranged colour display with icons
  • Rotary drive with hollow shaft
  • Torque-dependent thrust regulation
  • Integrated rod cleaning system
  • Integrated hydraulic bracing system

Demonstation of the Keyhole method for Gasnetz Hamburg

The gas network of the free and Hanseatic city of Hamburg consists of approx. 7,900 km of pipelines and around 160,000 service connections for almost 230,000 network customers. Within the framework of a week-long demonstration the urban operator Gasnetz Hamburg GmbH convinced itself of the benefits of the minimally invasive procedure for the quick and gentle production of gas service connections from a small circular pit with a maximum diameter of 65 cm. Find out more

TECHNICAL SPECIFICATIONS

PERFORMANCE DATA
METRIC
IMPERIAL
Height, diameter:
short version: H = 2.350 mm Ø = 595 mm, long version: H = 2.850 mm Ø = 595 mm
short version: H = 92.5 in Ø = 23.4 in, long version: H = 112.2 in Ø = 23.4 in
Weight:
short version: approx. 550 kg, long version: approx. 620 kg
short version: approx. 1,212.53 lbs, long version: approx. 1,366.85 lbs
Content of rod box:
100 m
328.08 ft
Thrust and pullback force:
50 kN
11,240.45 lbf
Max. torque:
1.200 Nm
885.07 lbf ft
Max. spindle speed:
70 rpm
70 rpm
Pilot bore Ø:
58 mm
2.3 in
Drill rods Ø:
50 mm
2.0 in
Effective rod length:
250 mm
9.8 in
Drill rod weight:
2,4 kg
5.29 lbs
Upsizing Ø:
130 mm
5.1 in
Outer pipe Ø:
90 mm
3.5 in
Bore length:
50 m
164.04 ft
Min. bore radius:
50 m
164.04 ft

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