Kelly Bar

The EK65HP


Standard Chassis: Cat® 317 Next Gen  
Installed Power: 136 hp 102 kW
Maximum Torque: 67,150 ft.lbs 9,310 kg.m
Maximum Diameter 5 ft 3 in 1,600 mm
Short Mast
Std. Depth Interlocking Kelly (5 El.)
41 ft 1,200 mm
Long Mast
Std. Depth Interlocking Kelly (5 El.)
80 ft 24,400 mm
Crowd Force: 27,060 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 55,000 lb 24,947 kg
Operation Weight 60,000 lb 27,125 kg
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About the EK65HP

The EK65 is the smallest machine CZM builds. It is a cylinder crowd drilling rig mounted on a Cat® 317 Next Gen. It is a very popular model for applications where space and overhead height are limited. It can be easily converted from Long Mast to Short Mast. It is a one load machine, with easy set up, completely self erecting.

  • The new Cat® 317 Next Gen powered by a fuel efficient Tier 4 Final C4.4 ACERT engine.
  • Equipped with Cat® Vision Link that allows management to monitor machine operations and maintenance data online.
  • Caterpillar® fixed undercarriage VH3170/2690/700.
  • 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.
  • Freewheeling winch during crowd operation.
  • Hydraulic and mechanical brake.
  • Hydraulic measurement of pulling force displayed in the cabin.
  • Robust design, with 2 slewing bearings on top and bottom, robust pinion and main gear.
  • 1 group of Hydraulic Motor / Planetary Gears for high torque and long life.
  • Anti-cavitation, anti-shock and cooling system for longer hydraulic motor life.
  • 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.
  • CZM Canbus System for Drilling Monitoring with auto functions.

Video Tour


Technical Drawings


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

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