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HFR91A Rotary Drilling RigHFR91A Rotary Drilling RigHFR91A Rotary Drilling Rig
HFR91A Rotary Drilling RigHFR91A Rotary Drilling RigHFR91A Rotary Drilling Rig

HFR91A Rotary Drilling Rig

Max. Driling Diameter: 2500-3000mm
Max. Drilling Depth: 91-108m
Engine Power: 298-373kW
Max. Output Torque: 320-400KN.m

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overview

Performance Characteristics

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;

The main and auxiliary winches both adopt single-row rope technology. The service life of wire rope is 2-4 times longer than that of multi-layer rope and the cost is lower.

Cummins electric control turbo-supercharged engine is used. It complies with Euro IIl emission standard In addition, it has strong power, which is sufficient to satisfy the construction on the plateau. Its noise is up to the national standard;

Using full electronic control technogy of CAN bus.Improves the reliability of the whole vehicle and simplify hydraulic line.Fully reflects the people,machine.electricity and liquid integration;

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: maintenance is eas.

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Technical Data

Type

Unit

HFR91A

HFR108A

Max. Driling Diameter

mm

∅2500/∅2200*

∅3000/∅2800*

Max. Drilling Depth

m

91

108

 

Engine

 

Model

 

QSM11

QSX15

Rated Power

kw

298

373

 

Rotary Drive

 

Max. output torque

KN.m

320

400

Rotary Speed

r/min

5.5-21

7-21

 

 

Crowd Cylinder

 

Max.pull-down piston push

KN

250

300

Max.pull-down piston pull

KN

250

400

Max. pull-down piston stroke

m

6

6

 

 

Crowd Winch

 

Max.pull-down piston push

KN

330*

300*

Max.pull-down piston pull

KN

350*

400*

Max. pull-down piston stroke

m

16*

16*

 

Main Winch

 

Max. pulling force

KN

280

420

Max.line speed

m/min

75

60

 

Auxiliary Winch

 

Max. pulling force

KN

100

100

Max.line speed

m/min

65

65

Mast Rake

Side/forwards/backwards

°

± 4/5/15

± 5/5/15

 

 

 

Undercarrige

 

Max. traveling speed

km/h

1.5

1.3

Max.grade ability

%

35

35

Track shoe width

mm

800

900

Distance between tracks

mm

3500-4800

3700-5100

Hydraulic system

Working pressure

Mpa

32

32

Overall Drilling Weight

t

95

132

 

Dimension

 

Working dimension

mm

10480 x 4800 x 25155

10530 x 5100 x 28572

Transportation dimension

mm

16500 x 3500 x 3500

18025 x3700 x 3500

Parameters with "*" refer to the ones of crowd winch configuration.

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