Geotec Bohrtechnik GmbH has been developing and building high-quality vertical drilling rigs for over 25 years. These are primarily used for near-surface geothermal energy extraction, geotechnical engineering, old mining and well construction, but are also ideally suited for dry drilling with casing, cable percussion drilling with casing, suction drilling and core drilling, as well as drilling with endless or hollow stem augers. When it comes to ease of use, functionality, speed and compact design, Rotomax drilling rigs are unique and market leaders in crucial areas. Thanks to very close customer contact, practical relevance and innovative 3D-CAD design, Geotec, with its own production facilities, is in a position to produce excellent series machines that stand for economic success.
For years, Geotec has counted on the reliability of Perkins engines to equip its Rotomax drilling rigs. Particularly the engines of the 1200 series fit the applications of the Rotomax drilling rigs. Due to their exceptionally compact and flexible design, Perkins 1200 Series engines can be found in more than 800 different machine models. Application examples at Geotec demonstrate the flexibility and robustness of this engine series.
For example, Geotec’s Rotomax XL‑B is equipped with a Perkins® 1204J-E44TTA. The engine has an output of 140 kW and 825 Nm and complies with EU Stage V. An application example for the equipment is a geotechnical exploration drilling, which was carried out for the construction of the feeder tunnel from Munich to the Brenner near Kufstein in Tyrol. The drilling point was at 890 m above sea level and pretty much on the border between Austria and Germany. The excavation area was 160 m below ground level. The equipment had to be particularly durable for this operation, as the drilling was carried out in two shifts, 24 hours continuously over a period of 6 weeks at different drilling points.
The products of the Rotomax series are also used for geothermal drilling. For example, the Rotomax XL-GT was used for the geothermal drilling of a housing estate with several solar plants in Wales. Here, the Rotomax XL-GT was also powered by a Perkins® 1204J-E44TTA. The 1204 engine — the 4‑cylinder option of the 1200 series — offers a complete drive solution that meets the latest emission standards and impresses with its particularly robust technology.
Of course, Geotec Rotomax drilling rigs are used especially in well construction. This was also the case in the construction of a service water well for a horse stud farm in Wales. Here, a Rotomax XL-GT Ci with double-head drilling rig was used. The machine is equipped with a 6‑cylinder diesel engine that drives the drilling rig to an output of up to 205 kW and 1257 Nm. The container has a magazine; fully loaded the Rotomax XL-GTCi weighs up to 18 t, runs on rubber tracks and can be transported by tandem trailer. The reliable drilling rig is equipped with a Perkins® 1206J-E70TTA. This is an EU emission level V engine.
“For our drilling equipment, we need consistently reliable, robust and powerful engines, with as little maintenance as possible. In this respect, we are very satisfied with the performance of the Perkins® 1200 series. In addition, we benefit from good advice – no matter whether it’s about choosing the right engine for our drilling equipment, to service and spare parts availability – our Perkins distributor, BU Power Systems, supports us reliably and competently at all times,” says Norbert Zumholz, managing director of Geotec Bohrtechnik.