Rotary Drilling Rig Fleet

Comacchio GEO305HT

Drilling with the Comacchio GEO305HT Multipurpose Rotary Drilling Rigs.

Medium in size, large in power and performance, the Comacchio GEO305HT is as capable conducting SPT’s as it is drilling 50m rotary cored and open boreholes. The Comacchio GEO305HT rig, weighing in at 5.50-6.00t (variant dependent) is transported to site by ADP Group’s own LGV transport truck and supported by an Iveco 7ton van containing all the drilling equipment and site specific materials.

With the ability to hollow stem augur and dynamic sample to 25m, rotary core and open hole to depths of up to 100m, and undertake a wide variety of geotechnical and environmental in-situ tests, the Comacchio GEO305HT is the answer to all your SI problems. The Comacchio “slide-o-matic” head allows the transition between the high torque, high speed rotary head and the high power hydraulic impact hammer in a matter of seconds – meaning borehole progression, sampling and tests in any geology!

The perfect geotechnical borehole rig is complemented by a rig mounted SPT hammer, not only making the process more efficient but also eliminating the requirement to lift the hammer manually – reducing manual handling onsite! The GEO305HT is equipped with a high pressure mist/wash-down pump and a TR200 (150lpm) mud recirculation pump. In compliance with all HSE and client requirements all of our rotary drilling rigs are fully guarded, giving ultimate protection to all drillers and public.

GEO305HT Rig Dimensions (when working)

Width: 1.63m Length: 4.00m Height: 6.35m (reduced height 4.85m)

Weight: 5.20-5.50 tonne Minimum Working Area: 3m wide x 8m long

Rig Feed: 3.50 tonne Rig Pull Back: 5.00 tonne Engine Power: 75hp

Noise Levels: Engine Idle @ 1m = 88dB / DS Hammer @ 1m = 115dB

Maximum Gradient (access and working): 36% (20 degree)

Rigs in fleet: DR3 & DR10

Rig Capabilities (guide only, subject to geology)

Dynamic sampling – 30m

Conventional coring (T6-H, 116, 131 & 146) – 100m / Geobor-S wireline – 100m

Rotary open hole – 100m

Hollow stem augering (8″ & 10″) – 25m

Casing (PW, SW, 8″ & 10″) – 50m

In-situ testing (rig mounted SPT hammer) – SPT, CPT, U70, U100 & UT100

Other drilling services

  • Industry Sectors

  • Window Sampling

  • Borehole Grouting

Our Certifications