China Gp72 Hydraulic Drill for Small Size Tunnel

GP72 Hydraulic drilling jumbo is used for production drilling in non-coal underground mining applications, and adapted cross section is 3.5mx3.5m-4.5mx4.5m.
The jumbo is the first choice for no sill pillar and high-sublevel caving technology. It can meet the specific drilling requirement with versatile positioning function, and features of high mechanization and efficiency, which is especially suitable for small cross section tunnel.

ItemUnit
SpecificationOverall performanceHole dia. mm φ43-φ76Hole depth(length)m25-30Overall sizemm8365x1450x2080(2780)Weight T Approx. 10Max. Gradeability
1:4(14º)Max. traveling speed Km/h ≤10
Drifter
Drifter
DrifterModel
HC50 LRP (France MONTABERT)Shank
T38/R38Percussion power Kw 13.2Percussion frequency Hz 62Percussion pressurebar
210Rotation speed
rpm
210 Rotation torque
Nm
315 Noise level
dB
105Lubrication air consumption
L/s
5
Water consumptionHydraulic system
Max. system pressure
Hydraulic oil tank volume
Low oil alarm
Water cooled hyd. oil cooler
Hydraulic oil filter blocked indicator
Hydraulic control system
Auto anti-jamming mechanism
Air system
Air compressor power
Max. displacement
Max. pressure
Water system
Water pump model
Max. flow
e pressure
Electrical system
Total power
Main motor power
Voltage
Frequency
Overload protection for electric motors
Digital voltage/ampere meter
Phase sequence protector
Charger
Cable reel
Engine
Modelset1 (Sauer U.S.A.)
bar
230L

124
yes
yes
yes
Electrohydraulic control
yes w
4.5L/s10(7bar)
bar
7
CDL4-16
L/min
67/min
bar
2
Kw
62
Kw
55
V
380
Hz
50
yes
yes
yes
yes
m
100
YANMAR 4TNV98T (Japan)Water consumption
L/min
25
FeederTotal length
mm
2700Length of steel rod
mm
1000Feeding force
KN
15
BoomFeeder compensation
mm
900Feeder lifting
°
+18/-90Feeder rotation
°
360Feeder sliding, left & rightmm
Support cylinder extension mm 1500Boom lifting°+|65/-30Boom swinging°±30

Hydraulic systemHydraulic pumpsset 1 (Sauer U.S.A.)Max. system pressure bar 230Hydraulic oil tank volumeL

124Low oil alarm
yesWater cooled hydraulic. oil cooler
yesHydraulic oil filter blocked indicator
yesHydraulic control system
Electrohydraulic controlAuto anti-jamming mechanism
yes
Air systemAir compressor power
Kw
4.5Max. displacement L/s 10(7bar)Max. pressure bar 7
Water systemWater pump model
CDL4-16Max. flow
L/min
67/minMin. Intake pressure
bar
2 Electrical systemTotal power
Kw
62Main motor power
Kw
55Voltage
V
380Frequency
Hz
50Overload protection for electric motors
yesDigital voltage/ampere meter
yesPhase sequence protector
yesCharger
yesCable reel
m
100 EngineModel
YANMAR 4TNV98T(Japan)

Exhaust purification, Water scrubber
and translator of ternary catalysis
(Optional, cost not included in quote,
if customer want, can add and quote separately) Rated power(2200rpm)
Kw
53.1 Rated torque(1650rpm)
N.m
286 Adapted altitude m
≤4500Fuel tank volume
L
60Electrical system
V
24Storage Batteries
2x12V,70Ah
ChassisArticulated turning angle
°
±35Turn method
Hydraulic Fixed front axle
Swing rear axle
°
±7Hydraulic power steering system
Dual pump four-motor hydrostatic four wheel drive
Sauer U.S.A. Tyremodel8.25-15 Approach/departure angle
° 14 Front hydraulic jack
2 pcs, extensibleRear hydraulic jack
2 pcsService brakes
Hydraulic Emergency and parking brakes
Spring pressured, separated hydraulic Central Lubrication
yesTraveling lampW6x70W