HFT250 roller cone drilling rig
Drilling range: 200-250m
Drilling angle: 60-90°
Maximum drilling depth: 48M
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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.
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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