The robust design of the Geoprobe® Model 6620DT has wider tracks and a heavy-duty undercarriage which provides the foundation for the Model 6620DT's robust design. The stronger, wider undercarriage allows this machine to be used on concrete or pavement, and enables the machine to readily negotiate in tight, confining work areas and on offroad, rugged terrain. The machine has 12-inch tracks and the overall width of the machine has increased to 60 inches which means the undercarriage provides a more stable base for probing and drilling operations.

The Model 6620DT is highly productive in both shallow and deep sampling venues. The stronger, wider undercarriage allows this machine to be used on concrete or pavement, and enables the machine to readily negotiate in tight, confining work areas and on offroad, rugged terrain.

The heart of the 6620DT is the GH60 Hammer, which is designed for soil probing applications and hits at over 1,900 blows per minute and delivers forces greater than 80,000 pounds per blow to the top of the probe rod.

A wireless remote control transmitter provides precise control of engine functions as well as track movement.

• 66 in. (1676 mm) probe cylinder stroke allows use of 60 in. (1,524 mm) probe rods
• Over 20 ton pulling capacity for today's larger sampling tools and deeper depths
• Equipped with the powerful GH60 Hammer
• Heavy Duty Undercarriage has a wider track that carries more weight, adds more torque, reduces ground pressure and handles greater tool weight
• Wireless remote control
• Built-in rotary spindle for concrete drilling, augering, and anchoring
• Equipped with a hydraulic winch for handling augers and tripping dual tube sampling tools
• Two-speed probe cylinder cycles from bottom to top in less than 5 seconds
• Powered by a four-cylinder, 54 Hp, liquid-cooled Kubota turbo diesel engine
• Hydraulic movement in all three axes allows easy probe alignment with tool string
• Auxiliary hydraulic ports provide power for remote equipment
• Compatible with Geoprobe® Tooling and Logging Equipment

Auxiliary hydraulic ports provide power for equipment such as a grout machine.

An easy-to-use control panel is located close to probing or augering activities to assist in smooth field operation. A 12-volt outlet on the side of the control panel can power various accessories or accommodate a 110-volt inverter for equipment such as a peristaltic pump.

Overhead Mast and Hydraulic Winch:
Designed to relieve operator fatigue associated with heavy lifting of large tooling and augers. Also helpful for tripping dual tube samplers. Lifting capacity is approximately 3,000 pounds with a line capacity up to 65 fpm. Individual components include a 12-foot overhead mast with swivel tophead, hydraulic winch with 30-feet of wire cable, swivel hook, and quick disconnect hydraulic lines.