CPT Rigs

Nearshore CPT Rigs

Lankelma’s C-5 Jack-up platform, known as Sandpiper, allows for geotechnical drilling, borehole investigation and CPT testing in waters up to 15m depth.


Sandpiper C-5 jack-up

  • Dimensions: 18.3 x 12.2m
  • Leg length: 27.3m total and 22.2m from underside of deck
  • 24/7 operations
  • Downhole CPT (Wison-APB and Top push rams)
  • Dando cable percussion and rotary drill rigs
  • Hydraulic deck-mounted crane and jacking unit power pack
  • Whisperwatt 3‐phase 25kVa Generator
  • Navigation system and VHF radio
  • Air conditioned work units for welfare, storage and workshop facilities

Wison-APB wireline deployable CPT system

  • 90mm downhole wireline tool utilising hydraulic pressure to provide a 1m or 3m CPT push (20mm/sec) or provide a good quality Shelby sample
  • Self-tensioning remote-controlled winch, power pack, mast and sheave block
  • Lowered through the drill string and latched into place at the base of the borehole
  • Both 5cm2 and 10cm2 piezocones can be used to produce a maximum 100 mPa of tip resistance
  • Works in conjunction with CRS XL Dual Sonic and Rotary drill rig or Dando 9000 rotary drill rig

Top Push CPT rams

  • 20 tonne ram capacity
  • Fully self-contained
  • Dedicated hydraulic power pack, generator and logging system, or can be plumbed into the vessel’s hydraulic system
  • Flexible anchorage, including mounting to a static plant, vessel or being beam mounted

Roson 50kN Wheeldrive

  • Compact and lightweight design - suitable for deployment from a small vessel
  • High-quality and reliable data

Other CPT Units

Tracked Rigs

Tracked Rigs

Our tracked mounted CPT rigs are ideal for soft or boggy ground conditions due to their large footprint and low bearing capacities.

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Track-trucks are our most versatile rig. They can be driven on the road, and once on site the tracks can be hydraulically deployed, allowing the rig to undertake site investigation on soft or uneven ground.

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Rail Units

Rail Units

The world’s first dedicated CPT rail truck; site personnel travel within the main cabin reducing movement time and testing within the four-foot. Lankelma’s excavator mounted rig can test on embankments, in the cess, four-foot and six-foot. Both rail units are VAB approved, and can perform multiple tests in a single possession.

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Specialist CPT units

Specialist CPT units

Our specialist rigs allow us to test in tricky environments, whether it’s in a basement, on a jack-up platform or a residential site. These highly mobile rigs can be anchored to the ground to gain a reaction force.

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