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Equipment

Dando 150

Low headroom/restricted access rig (Trailer mounted) Capable of drilling to maximum depth of 50m, in certain materials, finishing in 150mm casing To achieve this we would start in 250mm casing, reduce to 200mm casing and then finish the final phase of the borehole in 150mm casing. This particular rig would be used in car parks, warehouses, (one project was in a Victorian greenhouse) or where the width of access is narrower than 2m.

  • Power plant: Lister-Petter PH2 (Twin cylinder)
  • Min Deployed drill width: 1.1m
  • Min Deployed drill height: - 3.0m
  • Max drill depth: 50m
  • Casing diameters: 250mm, 200mm, 150mm
image of Dando 150

Dando 2000 Mk 2

We have five rigs of this type. Mechanical Winch 2 Tonne max lift. Capable of drilling to a maximum depth of 70m finishing in 150mm casing To achieve this depth we would start in 250mm casing, reduce to 200mm casing and then finish the final phase of the borehole in 150mm casing.

  • Power plant: Lister-Petter TR2 (Twin cylinder)
  • Casing diameters: 250mm, 200mm, 150mm
  • Max drilling depth: 70m
  • Min erected rig width: 2m
  • Min erected rig height: 6.5m
  • Min working area: 3.5x6m
image of Dando 2000 Mk 2

Dando 3000 Mk 2

Mechanical Winch 3 Tonne max lift Capable of drilling to depths of 90m finishing in 150mm. To achieve this we would start in 300mm casing, reduce to 250mm casing, reduce again to 200mm and then finish the final phase of the borehole in 150mm casing.

  • Power plant: Lister-Petter TR3 (Three cylinder)
  • Casing diameters: 300mm, 250mm, 200mm, 150mm
  • Max drilling depth: 90m
  • Min site access width: 2m
  • Min erected height: 6.5m
  • Min working area: 3.5m x 6m
image of Dando 3000 Mk 2

De-mountable Rig (transported disassembled in secure trailer)

Capable of drilling to depths of 50m, in certain drilling materials This rig can be disassembled and carried through buildings, up or down stairs using a Stair Climber and then assembled at the borehole position. Again this rig is used in basements, warehouses and difficult to access projects. We have full 30m+ of fume extraction to accompany this rig when required To achieve this depth the borehole would be cased to a maximum depth of 25m then open holed to 50m, using 200mm/150mm casing size. In the right drilling conditions 250mm could be used to a max depth of 5m.

  • Diesel PowerPlant: Yanmar 10BH (single cylinder):
    • Requires fume extraction in enclosed spaces, which we supply
  • Electric PowerPlant: Siemens 415v,30amp
    • Requires 3 phase power, either on site or we can hire a generator
  • Min site access width: 600mm
  • Min erected drill height: 2.4m
  • Min erected drill area: 1.6m x 4m
image of De-mountable Rig

Testing Equipment

Down the hole testing can also include:

  • SPT
  • U100
  • UT100
  • D B E
  • Piston sampling
  • Plastic stand pipe
  • Stainless steel stand pipe
  • Wire vibrating Piezometer