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Astec Underground Astec EarthPro Geothermal Drill Rig
September 16, 2009


The Astec EarthPro Geothermal 4550 (truck-mounted) and 4550X (track-mounted) drill rigs are designed to meet the specialized demands of geothermal system installations. Their field mobility, power, and technology make them ideally suited to high-production drilling applications. Its dual rack & pinion design is adapted from Astec HDD units, ensuring dependable service. There are no chains, cables, or hydraulic cylinders to replace. The three-speed drive motors allow quick trip times with strong 45,000 lbs. pull up and 22,000 lbs. pull down. It provides safe, precise operation and features locking motors, which prevent carriage free falls. With the automated pipe loader system, a single operator can drill and trip out up to 600 feet (183 m) of pipe without winch assistance.