Note: This feature is in the Nov. TT&C 2018 issue.
Early in 2018, Conrad presented two new foundation machines from the German ABI Group, including the massive Delmag RH 18/200 drill rig and the telescopic leader mast TM13/16 SL. Both models come in the typical Conrad style—really massive, highly functional and with plenty of details. The RH18/200 is especially a nice model addition, as there are not that many models of drill rigs currently available on the market.
The ABI Group is one of the leading companies in drilling and foundation equipment techniques. ABI was founded in 1974 and one year later introduced the first Mobilram system on a standard excavator. Delmag was founded in 1922 and developed the first explosion rammers to compact the earth; the legendary Delmag Frog was introduced in 1934. Delmag has been part of the ABI Group since 2000. Since 2003, the Swedish company Banut has also been part of the ABI Group, producing fixed leader masts and hydraulic impact hammers.
Delmag RH 18/200
The base machine is a SR25E manufactured by the ABI Group. In 2008, the ABI Group started to develop its own series of drilling rig carriers. Previously, it was common to use a standard crawler excavator to carry a drilling rig.
All dimensions are correctly converted, such as the mast height of 39.8 cm or 19.9 meters on the real machine. The width of the HD extendible undercarriage equals 4,400 mm in reality. However, Conrad delivers the model with slightly wider track shoes. Completely rigged, the real machine would weigh 63 tonnes, including the rotary head and Kelly bar.
Both crawlers can easily be extended for maximum stability or a minimum transport width. Even the hydraulic cylinder mechanism to extend the crawlers is nicely copied. The idler is spring-loaded and keeps the tracks well-tensioned.