At 20 in. wide, 62 in. tall (folded), and weighing less than 400 lb., the 420M can be manually lifted and carried to remote sampling locations. It can also be deployed to hard-to-reach and narrow sampling locations. The 420M is powered by a remote hydraulic power source which easily attaches to the machine or by using the auxiliary hydraulics from other Geoprobe machines.
Download the Geoprobe® 420M Manufacturer Specs
Foremost Mobile B-59 Drilling Rig
GTH utilizes a four wheel drive Mobile B-59 drill for hollow stem auger, diamond coring, down hole hammer, air/mud rotary and reverse circulation drilling. With 13,500 ft/lbs of rotary torque and six gears, the B-59 can handle virtually any lithology encountered. With two progressive cavity pumps ranging from 2 gal/min to 100 gal/min and an on-board 350 gallon water tank, this drill is a self contained unit that can handle everything from diamond coring, mud rotary and grouting work. Four winch lines, ready racks, an on-board air compressor and an automatic drop hammer make this machine as safe and productive as it gets.
Download the B-59 Drilling Rig Manufacturer Specs
Geoprobe® 6600 Series
GTH performs Direct-push services using a Geoprobe® 6600 series machines. The 6600 series machines are track and truck mounted, soil probing or “direct-push” machine that uses a small amount of static weight (6000-lbs.) combined with percussion (35,000-lbs.) as the energy for the advancement of push rod. Each machine is equipped with a 3000-ft•lb two speed auger for drilling hole diameters from 2-in. to 15-in. diameters and an overhead winch system with a lifting capacity of 3,000 pounds and a line capacity up to 65 fpm.
Download the Geoprobe® 6600 Manufacturer Specs
Download the Geoprobe® 6620DT Manufacturer Specs