Mining Drilling Jumbo

CYTJ45/2 Twin-Boom Mining Drilling Jumbo

The CRCHI CYTJ45/2 is a medium-to-large twin-boom mining hydraulic drilling jumbo for blast-hole and rock-bolt-hole drilling in underground drifts and tunnels. Two parallel-holding hydraulic booms cover a 9 m by 6.8 m maximum working face down to a 4 m by 4 m minimum section, drilling 45 to 89 mm holes to 4 m on a single rod at up to 3 m/min, with a quoted parallel hole-group positioning accuracy of ±0.5° and approximately 10% reduction in positioning time per cycle. The platform runs an articulated four-wheel-drive rubber-tyred chassis with hydrodynamic transmission, wet axle, parking brake and service brake, FOPS/ROPS certified canopy as standard (FOPS/ROPS enclosed cab optional), and a Yuchai 81 kW Tier 4-equivalent diesel as standard with Yuchai 81 kW Tier 3-equivalent, Yuchai 90 kW Euro V and a high-altitude module as options. The CYTJ45/2(Z) variant overlays a fully computerised control system: blast-hole plans built in CRCHI mine design software import directly into the jumbo, an on-board scanner captures the working-face point cloud, drilling executes automatically along pre-defined paths with adaptive anti-jamming and anti-idle-strike, MWD and electronic operation logs are generated per round, and an optional remote-control module supports beyond-line-of-sight operation; the FOPS/ROPS enclosed cab is standard. CRCHI Australia handles commissioning, parts and aftermarket support nationally. The civil counterpart is the ZYS-series tunnel drilling jumbo on the Tunnel Excavation & Support page, sized for larger railway, highway, water and metallurgy tunnel sections. The two-boom ZYS82 sits closest to CYTJ45/2 - same 25 percent gradeability and 4 x 4 m minimum section, but a 13.2 x 8 m maximum face, phi 41 to 140 mm holes and an all-electric tethered chassis.

Used inHard-Rock Drill and Blast Package Mine Development Package

CYTJ45/2 Twin-Boom Mining Drilling Jumbo

CYTJ45/2 Twin-Boom Mining Drilling Jumbo cross-section — Cross-section

Variants

Pick the variant that matches your tunnel section, your operator model and your automation appetite. The cards below summarise each variant on those three drivers.

CYTJ45/2

Hydraulic twin-boom

Hydraulic twin-boom baseline, parallel hole-group accuracy ±0.5°, FOPS/ROPS canopy standard.

Two parallel-holding hydraulic booms with parallel hole-group positioning accuracy of ±0.5° and approximately 10% reduction in positioning time per cycle
FOPS/ROPS certified canopy with 750 mm roof lifting stroke standard; FOPS/ROPS enclosed cab with air conditioning optional
Power supply 380 V / 550 V / 1,000 V at 50 Hz; 80 m standard cable length
Standard 0.8 m³/min 8 bar screw compressor (1.5 m³/min 7 bar plateau type optional)
Self-monitoring electrical system with single-hole drilling log, live equipment camera and an optional intelligent gateway streaming data and video to the mine information system
Boom swing angle +45°/-25°

Overall weight: 21.5 t
Dimensions (L×W×H): 12,300 × 2,250 × 2,380 / 3,130 mm (canopy); 12,300 × 2,250 × 2,900 mm (enclosed cab)
Total power: 123 kW (canopy) / 128 kW (enclosed cab)
Wheelbase: 3,210 mm (canopy) / 3,250 mm (enclosed cab)
Minimum turning radius: Inner 3.3 m / outer 6 m
Cable length: 80 m
Power supply: 380 V / 550 V / 1,000 V at 50 Hz
Cab/canopy: FOPS/ROPS canopy standard; FOPS/ROPS enclosed cab optional
Boom swing angle: +45°/-25°
Hole-group positioning accuracy: ±0.5°

CYTJ45/2(Z)

Intelligent twin-boom

Intelligent twin-boom with digital design import, scanner face capture and automatic drilling.

Fully computerised control system with parametric blast-hole layout import from CRCHI mine design software, MWD, automatic per-round operation log generation and remote real-time monitoring
On-board scanner captures roadway contour and working-face point cloud; automatic drilling executes pre-defined drill paths with high-precision boom control and motion-trajectory planning
Adaptive anti-jamming and anti-idle-strike during automatic drilling; average drilling speed 3 m/min
Optional remote-control module with HD zoom-PTZ cameras and low-latency video for beyond-line-of-sight tramming and drilling
FOPS/ROPS certified enclosed cab with air conditioning standard (no canopy option)
Power supply 380 V / 1,000 V at 50 Hz; 100 m standard cable length
Boom swing angle +40°/-30°

Overall weight: 21.8 t
Dimensions (L×W×H): 12,185 × 2,250 × 2,850 mm
Total power: 125 kW
Minimum turning radius: Inner 3.2 m / outer 6.1 m
Cable length: 100 m
Power supply: 380 V / 1,000 V at 50 Hz
Cab/canopy: FOPS/ROPS enclosed cab with air conditioning standard
Boom swing angle: +40°/-30°
Control system: Fully computerised with blast-hole import, MWD, scanner module and remote control (optional)

Features

Two hydraulic booms with full-range parallel holding, 360° feed roll-over, +65°/-30° max lifting angle and +45°/-25° (or +40°/-30° on the (Z)) boom swing, drilling blast holes and rock-bolt holes from the same set-up; parallel hole-group positioning accuracy of ±0.5° and approximately 10% reduction in positioning time per round on the hydraulic variant

22 kW class hydraulic rock drill: 200 bar max impact pressure, 60 Hz max impact frequency, 410 J max impact energy, 1,000 N·m max rotation torque, 215 r/min max rotation speed, with anti-idle-strike, anti-jamming and automatic retraction; drilling speed up to 3 m/min on 45 to 89 mm diameter holes to 4 m on a single rod

Feed options 12 ft (3.4 m max hole length), 14 ft (4 m, standard), 16 ft (4.6 m), 6+12 ft telescopic (1.6 m / 3.4 m) and 8+14 ft telescopic (2.2 m / 4.0 m), with 1,500 mm feed extension and 1,250 mm boom extension

Articulated four-wheel-drive rubber-tyred chassis on 12.00R20 tyres with hydrodynamic transmission, wet axle, parking brake and service brake; max travel speed 17 km/h, 25% max gradeability, 18° approach / 15° departure, 300 mm minimum ground clearance

Yuchai 81 kW Tier 4-equivalent diesel as standard, with Yuchai 81 kW Tier 3-equivalent, Yuchai 90 kW Euro V and a high-altitude module as options; 80 L diesel tank; 380 V / 550 V / 1,000 V 50 Hz electrical system, 125 kW total installed power across 2 × 55 kW motors (CYTJ45/2(Z) supports 380 V / 1,000 V only)

FOPS/ROPS certified canopy with 750 mm roof lifting stroke standard on CYTJ45/2 (FOPS/ROPS enclosed cab with air conditioning optional); FOPS/ROPS enclosed cab with air conditioning standard on CYTJ45/2(Z)

Self-monitoring electrical system with insulation, phase sequence, leakage protection and motor fault detection; single-hole drilling log (depth, propulsion speed, impact pressure), live equipment camera and an optional intelligent gateway streaming real-time data and video to the mine information system

CYTJ45/2(Z) adds a fully computerised control system: parametric blast-hole layout import from CRCHI mine design software, on-board scanner capture of the working face, automatic drilling along pre-defined paths with motion-trajectory planning, MWD (measurement while drilling), automatic operation log generation, remote real-time construction monitoring and an optional remote-control module with HD zoom-PTZ cameras for beyond-line-of-sight tramming and drilling

Specifications

Standard Configuration
Overall weight	21.5	t
Dimension (L×W×H), canopy	12300×2250×2380/3130	mm
Dimension (L×W×H), enclosed cab	12300×2250×2900	mm
Max working face (W×H)	9×6.8	m
Min working face (W×H)	4×4	m
Total power, canopy	123	kW
Total power, enclosed cab	128	kW
Wheelbase, canopy	3210	mm
Wheelbase, enclosed cab	3250	mm
Maximum climbing capacity	25	%
Minimum turning radius	Inner 3.3 / outer 6	m
Rock drill impact power	22	kW
Maximum drilling depth for a single rod	4.0	m
Drilling diameter	45 ~ 89	mm
Cable length	80	m
Power supply requirement	380V/550V/1000V 50Hz
Water supply pressure requirement	1 ~ 10	bar
Altitude	2000/4500/5300	m
Drifter
Max percussion power	22	kW
Max impact pressure	200	bar
Max impact frequency	60	Hz
Max impact energy	410	J
Max rotation torque	1000	N·m
Max rotation speed	215	r/min
Engine & power
Yuchai 81 kW China national standard IV	Standard
Yuchai 81 kW China national standard III	Optional
Yuchai 90 kW Euro V	Optional
Diesel tank volume	80	L
Applicable module for high altitude area	Optional
Boom
Feed extension	1500	mm
Boom extension	1250	mm
Full-range parallel holding	Standard
Feed roll-over	360	°
Max lifting angle	+65/-30	°
Boom swing angle	+45/-25	°
Compressed air
Screw compressor, standard type, 8 bar	0.8	m³/min
Screw compressor, plateau type, 7 bar (optional)	1.5	m³/min
Transmission
Max travelling speed	17	km/h
Drive	Four-wheel drive, rubber wheel travel
Steering / axles	Front axle fixed, rear axle floating, articulated steering
Tire size	12.00R20
Hydrodynamic transmission, wet axle, parking brake, service brake	Standard
Manual release pump	Optional
Frame assembly
Articulated chassis	Standard
Approach angle / departure angle	18 / 15	°
Min ground clearance	300	mm
Engine compartment automatic fire extinguishing system (optional)	Optional
Electrical system
Voltage 380 V, 50 Hz	Standard
Voltage 550 V, 50 Hz	Optional
Voltage 1000 V, 50 Hz	Optional
Total installed power, motor 2×55 kW	125	kW
Horn, signal light	Standard
380 V cable, 1×(3×95+3×16 mm²) ×80 m	Standard
550 V cable, 1×(3×50+3×10 mm²) ×100 m	Optional
1000 V cable, 1×(3×35+3×6 mm²) ×100 m	Optional
Water system
Water booster pump, standard, 10 m³/h, 5.5 kW, head 133 m	Standard
Water booster pump, plateau, 10 m³/h, 7.5 kW, head 133 m	Optional
Cleaning water pump	Standard
Lubrication
Automatic shank lubrication for rock drill	Standard
Manual centralized lubrication	Standard
Pneumatic grease pump	Standard
Feed
12 ft feed, max hole length 3.4 m	Optional
14 ft feed, max hole length 4 m	Standard
16 ft feed, max hole length 4.6 m	Optional
6/12 ft telescopic feed, hole length 1.6 m / 3.4 m	Optional
8/14 ft telescopic feed, hole length 2.2 m / 4.0 m	Optional
Cabin / canopy
FOPS/ROPS certified canopy	Standard
Roof lifting stroke 750 mm	Standard
FOPS/ROPS certified enclosed cab with air conditioning	Optional
Informatisation / control
Construction log analysis, single-hole report generation and export	Optional
Construction data export (USB)	Optional
Construction data export (wireless)	Optional
Automatic fault alarm (engine, main electric motor, air compressor, sensor, liquid level, lubrication and others)	Optional
Remote real-time monitoring of construction status	Optional
Remote data transmission	Optional

Overview

Applications

A medium-to-large twin-boom drilling jumbo for blast-hole and rock-bolt drilling in underground drifts and tunnels, working face widths from 4 m × 4 m up to 9 m × 6.8 m at 45 to 89 mm hole diameters and 4 m hole depth. Suited to mining adits and development drives, water-conservancy and hydropower headrace and access tunnels, national defence works and other underground rock-drilling applications where two booms drilling in parallel cut round time over single-boom platforms. The hydraulic CYTJ45/2 baseline suits operators specifying conventional manual face mark-out and operator-driven drilling. The intelligent CYTJ45/2(Z) suits operators specifying digital tunnelling design import, scanner-driven face capture, automatic drill-pattern execution and electronic operation logs, with optional remote-control beyond-line-of-sight operation. Commissioning, spares and aftermarket are handled across Australia by CRCHI Australia.

Performance

CYTJ45/2: 21.5 t platform, 12,300 × 2,250 × 2,380 / 3,130 mm (canopy) or 12,300 × 2,250 × 2,900 mm (enclosed cab). Total power 123 kW (canopy) / 128 kW (enclosed cab), wheelbase 3,210 / 3,250 mm, inner turning radius 3.3 m / outer 6 m. CYTJ45/2(Z): 21.8 t platform, 12,185 × 2,250 × 2,850 mm, total power 125 kW, inner turning radius 3.2 m / outer 6.1 m. Both variants share max working face 9 × 6.8 m, min working face 4 × 4 m, 22 kW rock-drill impact power, drilling diameter 45 to 89 mm, drilling depth 4 m on a single rod, drilling speed up to 3 m/min, 25% max gradeability, 17 km/h max travel speed, water supply pressure 1 to 10 bar and altitude configurations 2,000 / 4,500 / 5,300 m. Cable length 80 m on CYTJ45/2 and 100 m on CYTJ45/2(Z). CYTJ45/2 quotes parallel hole-group positioning accuracy of ±0.5° and approximately 10% reduction in positioning time per cycle.

Functions

Twin parallel-holding hydraulic booms with full-range parallel holding, 360° feed roll-over, +65°/-30° lifting and +45°/-25° (CYTJ45/2) or +40°/-30° (CYTJ45/2(Z)) boom swing, each carrying a 22 kW hydraulic rock drill on 12 ft / 14 ft / 16 ft / 6+12 ft / 8+14 ft feed options. Articulated four-wheel-drive chassis with hydrodynamic transmission, wet axle, parking brake and service brake. Yuchai diesel power module, 380 V / 550 V / 1,000 V (CYTJ45/2) or 380 V / 1,000 V (CYTJ45/2(Z)) electrical system at 125 kW total installed power across 2 × 55 kW motors, screw compressor, water booster pump and cleaning water pump, automatic shank lubrication plus manual centralised lubrication and pneumatic grease pump. CYTJ45/2 carries an electrical-system-led informatisation block with single-hole drilling log, equipment camera and optional intelligent gateway. CYTJ45/2(Z) replaces this with a fully computerised control system covering blast-hole layout import, MWD, scanner-driven face capture, automatic operation log generation, remote real-time monitoring, an optional remote-control module and an optional intelligent equipment collaborative management platform.

Benefits

Two booms drilling in parallel from one chassis cut drill-cycle time per round at the same face section without doubling tramming, water, air or operator overhead. Full-range parallel holding and ±0.5° hole-group accuracy on the hydraulic variant tighten pattern conformance and reduce overbreak risk; the intelligent variant takes marking-out and per-hole trajectory planning out of operator hands by executing imported blast-hole plans automatically with high-precision boom control and motion-trajectory planning. Anti-idle-strike, anti-jamming and automatic retraction extend rock-drill life. Centralised lubrication, automatic shank lubrication, a pneumatic grease pump and high component commonality across the CRCHI mining drilling-jumbo line shorten daily maintenance and shop time. The hydraulic variant is the conservative procurement baseline with optional intelligent gateway upgrades; the (Z) variant adds digital design import, automatic drilling, electronic operation logs and an optional remote-control module that lifts personnel off the face.

Used in

Solution package

Hard-Rock Drill and Blast Package

View the full equipment package →

Solution package

Mine Development Package

View the full equipment package →

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