Long Reach

The LR50


Standard Chassis: Cat® 323 Next Gen  
Installed Power: 172 hp 128 kW
Maximum Torque: 52,900 ft.lbs 7,340 kg.m
Maximum Diameter: 8 ft 2,500 mm
Drilling Depth: 40 ft 12,200 mm
Crowd Force: 27,000 lbf 12,300 kgf
Crowd Cylinder Stroke: 6 ft 3 in 1,920 mm
Main Winch Line Pull 27,120 lbf 12,330 kgf
Minimum Transport Weight 73,600 lb 33,400 kg
Operation Weight 74,900 lb 34,200 kg
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About the LR50

The LR50 is part of CZM’s Long Reach series and is mounted on a Cat® 323 Next Gen. The long reach configuration makes it ideal to applications such as sound bearing walls, transmission lines and utilities, drilling on a steep slopes, and difficult to reach holes. Kelly bar options vary from interlocking to round friction and have a standard drilling depth of  40ft with a maximum 8ft diameter.
  • The new Cat® 323 Next Gen is a purpose-built machine powered by a fuel-efficient U.S. EPA Tier 4 Final C7.1 ACERT engine.
  • Equipped with Cat® Vision Link that allows management to monitor machine operations and maintenance data online and wireless, providing information such as location, hours, fuel usage, idle time, event codes and maintenance schedule.
  • Reinforced mast, with high resistance steel Weldox 700.
Main Winch:
  • Special groove for better cable winding and longer cable life.
  • Press-roller included.
  • 2 gears allows for both high speed and high pulling force.
  • Automatic gear shifting, for seamless operation, high production.
  • Automatic down the hole winch stop. When Kelly bar reaches the bottom of the hole, winch automatically stops.
  • Freewheeling winch during crowd operation.
  • Hydraulic and mechanical brake.
  • Hydraulic measurement of pulling force displayed in the cabin for operator.
  • Robust design, with 2 slewing bearings on top and bottom, robust pinion and main gear.
  • Anti-cavitation and anti-shock system for longer hydraulic motor life.
  • 1 group of Hydraulic Motor / Planetary Gear for high torque, high speeds and long life.
  • Cooling system for hydraulic motors and gearboxes.
  • Power-shift for High spin-off speed (120rpm) for quick discharge of soil.
  • 3 operation speeds and 3 spinoff speeds. For high torque and high speeds.
  • Automatic gear shifting, for seamless operation, high production.
  • Exchangeable keys, bolted. No need to rebuild keys by welding inside the rotary.
  • Hydraulic measurement of torque displayed in the cabin for the operator.
  • AM/FM Radio, Air conditioning/Heating.
  • ROPS cab & Top protection.
  • LCD monitor for Engine and Hydraulics computer, with diagnostic system.



Technical Drawings


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CZM USA is a specialized foundation equipment manufacturer headquartered in Savannah, GA.

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