The JT4020 All Terrain unit permits effective drilling and steering in extreme conditions such as solid and broken rock, cobble, and solid and rock mixtures. It can effectively make installations to distances of up to 305 metres at a lower cost than is possible with larger, more expensive models which often require mud motors and separate mud recirculation systems.

The All Terrain mechanical, dual-drive drilling system employs an inner rod to drive a rock bit during the bore; an outer pipe thrusts the bit forward while drilling and provides rotary torque for the hole opener during backreaming. The mechanical drilling system delivers maximum downhole horsepower and operates on low volumes of drilling fluid.

In addition to standard all terrain drill pipe, the Ditch Witch organisation also offers drill pipe specifically designed for use in cobble and glacial till conditions. The small footprint of the compact drilling unit permits set up in small areas. The All Terrain unit is productive in almost all types of soils.

Without the All Terrain option, the JT4020 model is an excellent general-purpose drilling system and offers Ditch Witch Mach 1 technology that provides enhanced features and benefits, including simplified Mach 1 electronics with on-board controller, which improves overall machine performance and controls operation of new cruise control and automated pipe loader functions. The cruise control function permits the operator to set drilling and backreaming speeds so the machine controls drilling functions, a feature that improves productivity and increases the operator comfort level, as the operator can release the control handle. Cruise control is especially useful on units equipped with the All Terrain option.

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Other benefits include the heavy-duty, four-point anchoring that holds the drilling unit firmly in place, even in hard rock drilling conditions; an improved pipeloader which provides fast, reliable automated pipe loading and unloading; heavy-duty vise wrenches that grip pipe joints firmly during pipe makeup and breakout and are designed for long-lasting, trouble-free performance, and an improved automated pipe lubricating system which holds a larger supply of contamination-free lubricant.

The self-contained JT4020 Mach 1 has a 185-horsepower (138 kW) turbo-charged diesel engine and develops 40,000 pounds (120 kN) pullback, 5,000 foot pounds (6779 Newton metres) of spindle torque, and spindle speeds to 250 rpm. The operator’s station is designed for maximum efficiency and comfort. The JT4020 Mach 1 uses Ditch Witch Power Pipe™ drill pipe with patented Fluid Miser lining and the Ditch Witch 752 Tracker.

The Ditch Witch organisation specialises in the design and manufacture of high-quality underground construction equipment. The company is a one-stop source for trenchers, vibratory plows, pneumatic piercing tools, backhoes, electronic tracking and locating tools, horizontal directional drilling systems, drill pipe, downhole tools, vacuum excavation systems, mini excavators, excavator-tool carrier and mini skid steers.

All of these products are recognised around the world for their advanced design, rugged construction, long-term durability, ease of use, and reliability. This product line represents the most complete range of equipment for installing utilities underground.