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HFT250 roller cone drilling rigHFT250 roller cone drilling rigHFT250 roller cone drilling rig
HFT250 roller cone drilling rigHFT250 roller cone drilling rigHFT250 roller cone drilling rig

HFT250 roller cone drilling rig

 

Drilling range: 200-250m

 

Drilling angle: 60-90°

 

Maximum drilling depth: 48M

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overview

The HFT250 roller cone drilling rig has the advantages of large drilling diameter, high efficiency, large production capacity, low operating cost and energy consumption, high degree of mechanization and automation, and is suitable for drilling operations in various hardness mineral rocks from f4 to f20. It is the largest large-scale drilling rig in the world today. and large-aperture blast hole drilling equipment widely used in very large open-pit mines.

Advantages

◆High axial pressure, high torque, high rotation speed, and large hole diameter provide excellent production efficiency for your mining operations.

◆Dual power system of motor and diesel engine, optional high and low dual pressure or low wind pressure air compressor, highly efficient, energy-saving, green and environmentally friendly.

◆Adopts constant power variable electro-hydraulic proportional control system to automatically adjust operating parameters according to the rock formation.

◆Equipped with a three-point floating leveling chassis and a high-strength truss drill frame, it has high reliability.

◆It has two rock drilling modes: cone rotation and down-the-hole impact, with good adaptability to working conditions and wide adaptability to rock formations.

Zhengzhou Hanfa Prospecting Machinery Co., Ltd.Zhengzhou Hanfa Prospecting Machinery Co., Ltd.Zhengzhou Hanfa Prospecting Machinery Co., Ltd.

Technical Data

category project unit Specific parameters
main Drilling range mm 200-250
  Adapt to rock hardness / f4-f20
performance Drill pipe diameter mm 159、178、194
  Drill pipe length m 10m×5
parameter Maximum drilling depth m 48
  drilling angle ° 60-90
  Dust removal method (dry/wet) / Dry type (cyclone + laminar flow), optional wet type
weight Total machine quality t 65
  Length × width × height (drill frame horizontal) m 16.4×5.9×6.6
  Length × width × height (drill frame vertical) m 11.5×5.9×16.7
Chassis Walking speed km/h 1.8
walk minimum ground clearance mm 410
  climbing angle º 20
power engine model / C18
system Engine power kw/rpm 571/1800
  Fuel tank L 1800
air compressor brand / atlas
  model / 255CKD
system work pressure bar 8
  Air volume m³/min 40
  Main pump flow L/min 350
  System pressure MPa 35
Power Head Rotating speed rpm 0-150
  Torque Nm 11800
advance Drill frame length mm 15000
  Advance the itinerary mm 11600
system Propulsion kN 220
  shaft pressure kN 270
  propulsion speed m/min 34
  boost speed m/min 65

 

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