CZM – LR50M Drilling Rig

The LR50 is a prominent model in the CZM Long Reach series, mounted on a robust CAT 323 Next Gen. This rig’s long reach configuration is tailored for a variety of applications, including constructing sound barrier walls, erecting transmission lines and utilities, drilling on steep slopes, and accessing holes in challenging locations. With Kelly bar options ranging from interlocking to round friction, the LR50 achieves a standard drilling depth of 40 feet and can accommodate a maximum diameter of 8 feet.

Product and Technical Information


The LR50 is built upon the new Cat 323 Next Gen, a purpose-built machine powered by a fuel-efficient U.S. EPA Tier 4 Final C7.1 ACERT engine. The rig is equipped with CAT Vision Link, which provides wireless management monitoring of machine operations and maintenance data, offering insights into location, hours, fuel usage, idle time, event codes, and maintenance schedules.


A reinforced mast constructed from high resistance steel Weldox 700 gives the LR50 the durability needed to withstand the rigors of various drilling projects.

Main Winch:

The main winch system features a special groove for improved cable winding and extended cable life. It includes a press-roller and offers two gears for a balance of high speed and substantial pulling force. The winch operates with automatic gear shifting for smooth, high-production drilling and includes an automatic down-the-hole winch stop. During crowd operations, the winch operates freely, with both hydraulic and mechanical brakes for safety. The cabin’s display of hydraulic pulling force measurements keeps the operator fully informed.


The LR50’s rotary is designed for resilience, with two slewing bearings at the top and bottom, and a robust pinion and main gear. It includes an anti-cavitation and anti-shock system to extend the life of the hydraulic motors. A single group of Hydraulic Motor / Planetary Gear ensures high torque, high speeds, and longevity. The cooling system for hydraulic motors and gearboxes maintains optimal performance. A power-shift feature allows for a high spin-off speed of 120rpm, facilitating efficient soil discharge. With three operational and spinoff speeds, the rotary is optimized for both high torque and rapid speeds. The operator can easily monitor torque via the hydraulic measurement display in the cabin.


The cab of the LR50 is designed for operator comfort and safety, featuring an AM/FM Radio, air conditioning, heating, and ROPS certification with top protection. An LCD monitor connects to the engine and hydraulics computer, providing a comprehensive diagnostic system.

The LR50 drilling rig, available with both Standard Mast and Long Mast configurations, is a versatile and efficient solution, offering unparalleled performance for foundational drilling projects that demand precision, power, and adaptability.

Aksela builds value into everything we do. We are committed to providing our customers with the highest levels of equipment, service, and support. Contact us today to learn more about how our Sales and Rental options can help you tackle your next drilling project with confidence. For outstanding service and expert advice, call us today at (877) 852-0012.

For outstanding service and expert advice, call us today at (877) 852-0012.