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HFR320D Rotary Drilling RigHFR320D Rotary Drilling RigHFR320D Rotary Drilling Rig
HFR320D Rotary Drilling RigHFR320D Rotary Drilling RigHFR320D Rotary Drilling Rig

HFR320D Rotary Drilling Rig

Rated Power: 298/2100kW
Max.Drilling Depth: 90m
Max.Drilling Diameter 2500mm

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overview

It adopts dedicated hydraulic retractable crawler chassis and heavy slewing bearing and has high stability.

It adopts the luffing mechanism of large triangle form to ensure the stability of construction of big holes and deep piles in hard formation.

It adopts the front-located single-rope main winch structure to greatly prolong the service life of steel wire rope and lower the use cost.

It adopts the imported Cummins turbo-supercharged engine with three gears. Users can select corresponding gears according to different working conditions to achieve the effect of a drilling rig driven by three engines.

Normal mode and entering-rock mode of unit head are available for operation in soil and rock to improve the construction efficiency.

Winch-pressurized and sleeve-driven functions are available for selection to satisfy various needs of the users.

It is equipped with a centralized lubrication system as standard configuration to provide more convenient maintenance and make the machine a good reliability .

Technical Data

Max.Drilling Diameter Uncased φ2500mm
Cased φ2200mm
  Max.Drilling Depth 90m
Dimension Working condition L × W × H 10480×4800×25155mm
Transportation condition L × W × H 16550×3500×3500mm
Overall Drilling Weight 92.8t
Engine Model CUMMINS QSM11-C400
Rated Power 298/2100kw
Hydraulic System Working pressure 35MPa
Rotary Drive Max. output torque 320KN.m
Rotary speed 5~20r/min
Spin off speed -
Pull-Down Cylinder Max.pull-down piston push 250KN
Max.pull-down piston pull 250KN
Max.pull-down piston stroke 6000mm
Crowd Winch Max.pull-down piston push 330KN
Max.pull-down piston pull 350KN
Max. pull-down piston stroke 16000mm
Main Winch Max.pulling force 280KN
Max. single-rope speed 75m/min
Diameter of the steel wire rope 36mm
Auxiliary Winch Max. Pulling force 100KN
Max. single-rope speed 65m/mim
Diameter of the steel wire rope 20mm
Drilling mast Left/right inclination of mast 42464°
Front inclination of mast
Rotary table slewing angle 360°
Traveling Max. traveling speed 1.5km/h
Max.grade ability 35%
Crawler Track shoe width 800mm
Distance between tracks 3500~4800mm
The length of crawler 5052mm
Average ground pressure 115kPa

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