Specialty Equipment


Our projects are frequently located in confined spaces, rugged terrain and environmentally sensitive areas, requiring innovative access solutions. We have significant experience incorporating helicopter or crane support into our projects, and our in-house fabrication shop allows us to tailor equipment to meet individual project needs. Our fleet of customized drill rigs and support equipment has been crucial to the successful completion of numerous logistically challenging exploration and construction projects.

Burley 2500 Geotechnical Drill

The smallest and most lightweight drill in Crux’s inventory. With the ability to be broken down into 750 lb components, this drill can be transported by track vehicle, crane or light-lift helicopter. Features an 8000 lb winch mounted to the undercarriage to aid with access, and can access 2:1 (H:V) slopes in this configuration. This drill provides 2000 ft-lbs of torque, over 1000 RPM of spindle speed and is capable of drilling at any angle.

Burley 4000 Geotechnical Drill

A rubber-tracked drill with capabilities to core, auger and run a DTH under-reamer system. It is comparable in setup time to a truck-mounted drill, but also offers agile and environmentally sensitive features to move over challenging terrain. Equipped on steel tracks with polyurethane pads and a 12,000 lb winch, the 4000 is capable of accessing sites otherwise only accessible by helicopter or crane.


Burley 5500 Geotechnical Drill

Features a unique component setup that allows for a variety of transportation methods, including track vehicle, crane and light-lift helicopter. When set up on a 7-foot wide track undercarriage the 5500 is capable of traversing 2:1 (H:V) slopes. For sites with more challenging access, the drill can be broken down into 1000-lb components and placed in virtually any location using a crane or small helicopter.

Burley 6000 Geotechnical Drill

This truck/component drill rig is set up on a 4x4 Unimog truck and utilizes the vehicle’s engine as a power source in this configuration. The Unimog provides an efficient method of access to locations that require more than a standard truck-mounted drill rig, without compromising the setup and transport speeds typically associated with one. For sites with more challenging access, the drill can be broken down into 1000-lb components and placed in virtually any location using a crane or small helicopter.

DMW 65 Geotechnical Drill

A component track-mounted drill rig that breaks down into 2200-lb components and is portable by crane and helicopter. This drill rig will set up on 2:1 (H:V) slopes with minimal environmental impact and is capable of drilling any orientation. The DMW 65 is predominantly used in difficult alluvial or overburden conditions. It can also be used on deep borings, and was designed to mount to a Marooka undercarriage for easy transportation on projects that necessitate track vehicles.

HTD 10k Geotechnical Drill

Designed and built to drill long-range horizontal boreholes from relatively small diameter shafts. The HTD 10k can be set up in 16-foot-wide shafts or at portal locations on a 16-foot by 25-foot work platform. It is capable of drilling to 3000 feet horizontally with NQ3 wireline tools and to 1000 feet horizontally utilizing downhole hammer tools. Powered by a 150 BHP electric motor, the HTD 10k can safely operate in underground environments. Other key features include a semi-automated (“wrenchless”) rod handling system, significant depth capacity and a compact setup footprint.

Beretta Spin Drills

A fleet of specialized construction drill rigs that can be track-mounted or placed on specialized drill platforms. Lightweight and componentized, the Berettas can be broken down into 4000 lb elements and easily picked by medium-lift helicopter or light-lift crane. These hydraulic rotary drills are equipped with adjustable feed frames to access confined locations, and feature rod clamps capable of handling up to 9-inch diameter material. All Beretta power units are certified by the California Air Resources Board’s Portable Equipment Registration Program, known to hold the most stringent emission requirements. The Berettas are most frequently utilized for micropile installation on a variety of foundation projects.

Marooka MST 1500VD

These rubber track carriers have a ground pressure of only 3.9 psi when fully loaded, enabling them to traverse undulating terrain and poor, unimproved roadways. Crux has customized the carriers to support a mounted drill rig or radio controlled crane, and they are utilized in place of rough terrain forklifts when conditions are appropriate. Marooka carriers are more stable than forklifts on steep slopes and can access a wider range of locations. The availability of a radio controlled crane on the drill site serves to mechanize material and equipment handling, alleviating a number of heavy lifting activities from field employees and increasing overall safety and efficiency.

Barges (30ft and 40ft)

Custom designed barge systems for working in a variety of marine conditions, including 20-foot tide changes, fast current rivers, and water depths up to 275 feet. Each barge is equipped with chambers for ballasting and can float in as little as 18 inches of water. Stabilization at boring locations is achieved through spud systems in shallow waters, and landlines and anchoring systems in deep waters. The barges are equipped with four winches for anchoring, and can be equipped with loading ramps for transporting track-mounted or truck-mounted equipment.

Crux Oriented Borehole Logging (COBL)

Provides clients with a continuous, detailed and oriented 3D color image of the borehole wall. Subsequent interpretation and analysis of this image provides information on dip azimuth and dip magnitude for all identified planar features. The system is applicable in vertical, horizontal and inclined boreholes, and can accommodate additional downhole surveys including caliper, natural gamma, temperature and resistivity. Benefits of the system include azimuth and dip records every 0.01 feet, orientation of planar features intersecting the borehole, and a detailed visual representation of the core. Clients receive a graphic log of the borehole, a color report showing oriented wrapped and unwrapped views, and a feature table listing all identified features.