Kaishan Underground Drilling Rigs/Underground Tunnelling (Development) Drilling Rigs
KJ310
KJ310 is a hydraulic tunnelling drilling rig for mining preparation and tunnel development in hard-rock sections of 12-35 m². It drills vertical, inclined and horizontal blast holes and also supports lateral cross-cut and rock-bolting work.
Drilling capability — Tunnel working range
12-35 m²
Drilling capability — Rock drill
HC50 / 18U / HC95LMH/22U
Drilling capability — Hole diameter
HC50: Φ32-76 mm; 18U: Φ42-102 mm; HC95LMH/22U: Φ42-102 mm
Drilling capability — Impact power
HC50: 13 kW; 18U: 18 kW; HC95LMH/22U: 21 kW/22 kW
Overview
KJ310 is a hydraulic tunnelling drilling rig for mining preparation and tunnel development in hard-rock sections of 12-35 m². It drills vertical, inclined and horizontal blast holes and also supports lateral cross-cut and rock-bolting work.
Key highlights
- ✓A self-leveling boom and 360° feed-beam rotation support quick hole positioning.
- ✓The heavy articulated chassis supports flexible movement in the tunnel.
- ✓The layout provides a clear operator view and working space for drilling.
- ✓Automatic functions assist the operator, while protected components remain accessible for maintenance.
Applications: Mining preparation work and roadway/tunnel driving. · Hard-rock sections of 12-35 m². · Drilling of vertical, inclined and horizontal blast holes, lateral cross-cut holes and rock-bolting holes.
Specifications
Request the current specification sheet for this model using the button above.
Drilling capability
| Tunnel working range | 12-35 m² |
| Rock drill | HC50 / 18U / HC95LMH/22U |
| Hole diameter | HC50: Φ32-76 mm; 18U: Φ42-102 mm; HC95LMH/22U: Φ42-102 mm |
| Impact power | HC50: 13 kW; 18U: 18 kW; HC95LMH/22U: 21 kW/22 kW |
| Impact frequency | HC50: 62 Hz; 18U: 57 Hz; HC95LMH/22U: 62 Hz/53 Hz |
| Rod size | R38 / T38 |
| Boom model | K 26F; Self-leveling |
| Boom extension | 1200 mm |
| Feed beam | Rotation 360°; extension 1600 mm |
Engine & drive
| Chassis engine | Cummins B3.9CS4-80C, 59 kW / 2500 rpm |
| Motor power | 75 kW |
| Electrical supply | 380 V; 50 Hz; starting: Star-triangle |
| Cable specification | 3×50+3G10 |
Dimensions & weight
| Dimensions (L × W × H) | 10250 × 1800 × (2000/2730) mm |
| Weight | approx. 13500 kg |
Drive & handling
| Steering & axle | Articulated steering, ±40°; rear axle swing ±10° |
| Parking brake | Wet multidisc brake of reducer |
| Travel brake | Two-circuit hydraulic brake |
| Safety canopy & noise | Lifting roof: FOPS & ROPS certified; noise < 100 dB(A) |
Mud & hydraulic
| Impact/feed/positioning pump | Axial variable displacement piston pump |
| Rotation pump | Gear pump |
| Hydraulic oil system | Tank 240 L; filtration 10 μ; Water cooler |
| Fuel tank | 34 L |
Tooling & air
| Air compressor | DLGF 0.7/8-5.5(B); 0.7 m³/min; 8 bar |
| Water pump | 4 kW / 5.8 m³/h |
| Shank lubrication | Electronic pulse lubrication pump; oil 180-250 g/h; air 0.3 m³/min |
Performance & mobility
| Travel speed | 2.5 km/h |
| Gradeability | 20° |
| Drive system | Closed hydraulic system for four-wheel driving |
Applications
- Underground mining
- Development drilling
- Tunnel face drilling
Recommended packages
Air compressor match
Underground jumbos run on the mine's electric/hydraulic supply — confirm voltage and water/air services at the heading. Where air is needed, match a KSDY electric compressor to the site power.
DTH hammer & bits
Kaishan underground rigs use premium hydraulic rock drills (Montabert HC50/HC95/HC109) for face and production drilling; the KSQ31 DTH model runs K-class hammers. Confirm rock drill model against your tunnel section.
Need a complete drilling package? Request a rig + compressor + tooling quote →
Frequently asked questions
What applications suit the KJ310?
Underground mining, Development drilling, Tunnel face drilling.
Which air compressor pairs with the KJ310?
Underground jumbos run on the mine's electric/hydraulic supply — confirm voltage and water/air services at the heading. Where air is needed, match a KSDY electric compressor to the site power.
Can the equipment be configured to my project?
Send your project details through the inquiry form and we will confirm the available configuration for the selected model before quotation.