China Gp91 Hydraulic Rock Bolter

Hydraulic Bolting Jumbo/Rock Bolter for Tunnel Bolting

Main technical features
1) Advanced hydraulic drilling equipment for small tunnel.
2) Compact structure, energy saving, low noise, multi-function and high efficiency.
3) Separate travelling and drilling power supply, which is easy switch, makes the jumbo move to next site rapidly.
4) This drilling jumbo could be used for metal mine, non-ferrous metal mine, hydro-power station and other underground bolting engineering.

ItemUnitSpecificationsComplete machineLength (working)mm9850mm(11100)Width
1850mmHeight (traveling)
2340mmHeight(Max. roof up)T2940mmWeight
12500KgWheel base
2900mmGround clearance
295mmGradeability
14°Traveling speed
0~14Km/h
Chassis
Engine
YT4B2-22 Luoyang YTOType
Inline water cooling diesel engineRated output powerKw 60 KW/2300RpmMax. torqueN.m295 N.m/1650 RpmFixed seat
yesProtective roof
FOPS-approvedHorn
yesArticulated steering° ±38°Hydraulic power steering system
yesTransmission mechanism
Hydrodynamic transmission gearboxService breaks
Caliper disc brakeEmergency and parking brakes
Hand parkingFixed front wheel
Swinging rear wheel°±8°Tyres
10.00-20Approach and departure angle °14°Front hydraulic jackpc2 ExtensibleRear hydraulic jackpc2Fuel tank, volume L40Electric systemV24Batteries
24V, 195AHTramming lights
8-24V/25WCentral lubrication system
yesFire extinguisher
yesHorn, signal lamp and back up warning light
yes
Hydraulic systemHydraulic pumps
One variable pump for percussion and positioning
One constant flow pump for rotationMax. system pressureBar230Hydraulic oil tank volumeL124Low oil indicator
yesWater cooled oil cooler
yesOil filter indicator
yesOperators control panel
yesHand petrol pump
yesHydraulic drifterModel
HC25Shank
R32/28, R25Height over drill centermm83.5Length (shank not include)mm702Impact powerKw9.75Impact rateHz65Impact pressurebar150Rotation system
Separate rotationRotation speedRpm180Rotation torqueN.m320Rotation pressurebar140Lub. Air consumption (at 3 bar)L/s42Water consumption L/s0.5Weight Kg71FeederFeeder
GP91Total lengthmm2950 HandlerDrill rod lengthmm2200 1800 anchor rod (8 pcs)Hole depth2000mmFeeding force KN15Boom
Feeder compensationmm560Feeder roll-over °±180°Feeder lifting angle °+80°/-25°Boom lifting angle °+50°/-30°Max. Boom swinging angle °±30°Feeder swinging °90°Water systemWater pump
CDL4-16Max. flowL/min67 Min. water inlet pressurebar2 Water pressure gauge
yes
Air system
Air compressor powerKw4.5 Max. capacityL/s10 (7bar)Air pressure gauge
yesElectric system
Total installed powerKw62 Main motorKw55 VoltageV380 FrequencyHz50 Thermal overload protection for electric motors
yesDigital volt/amperage meter
yesPhase sequence indicator
yesBattery charger
yesImpacting timer
yesCable reel m100Control systemDirect hydraulic control system
yesAuto anti-jamming function
yes