Kaishan Underground Drilling Rigs/Underground Tunnelling (Development) Drilling Rigs
KJ212i
KJ212i is Kaishan's intelligent underground development drill rig for automated drilling in hard-rock mines and low roadways. Its operating section range is 3.5 m × 2.4 m to 9 m × 5.8 m.
Drilling capability — Tunnel working range
3.5 m × 2.4 m to 9 m × 5.8 m
Drilling capability — Rock drill
HC50 / 18U / HC95LMH/22U
Drilling capability — Hole diameter
HC50: Φ32-76 mm; 18U: Φ42-89 mm; HC95LMH/22U: Φ42-102 mm
Drilling capability — Impact power
HC50: 13 kW; 18U: 18 kW; HC95LMH/22U: 21 kW/22 kW
Overview
KJ212i is Kaishan's intelligent underground development drill rig for automated drilling in hard-rock mines and low roadways. Its operating section range is 3.5 m × 2.4 m to 9 m × 5.8 m.
Key highlights
- ✓Laser-guided positioning covers the working face; support legs deploy and the carrier levels automatically.
- ✓Working-face scanning builds a 3D model, checks the mine hole layout and determines the drilling sequence.
- ✓The boom and feed beam position automatically for each hole.
- ✓Automatic drilling includes opening, drilling-parameter and anti-jamming adjustment, hole washing and retraction.
- ✓Where the mine network permits, one operator can control several rigs remotely from the ground control room, reducing on-site staffing.
- ✓Drilling-process data is collected and analysed to support process improvement.
Applications: Automated roadway development and excavation in hard-rock mines. · Drilling in low roadways; remote operation where mine network conditions permit.
Specifications
Request the current specification sheet for this model using the button above.
Drilling capability
| Tunnel working range | 3.5 m × 2.4 m to 9 m × 5.8 m |
| Rock drill | HC50 / 18U / HC95LMH/22U |
| Hole diameter | HC50: Φ32-76 mm; 18U: Φ42-89 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 |
| Boom model | K36; Self-leveling |
| Boom extension | 1800 mm |
| Feed beam | Rotation 360°; extension 1600 mm |
Engine & drive
| Chassis engine | Cummins B3.9CS4-80C, 59 kW / 2500 rpm |
| Motor power | 45 kW; 55 kW; 75 kW |
| Electrical supply | 380 V; 50 Hz; starting: Star-triangle |
| Cable specification | 3x35+3G6 / 3x50+3G10 |
Dimensions & weight
| Dimensions (L × W × H) | 12200 × 2050 × 1990/2510 mm |
| Weight | approx. 13000 kg |
Drive & handling
| Steering & axle | Articulated steering, ±40°; rear axle swing ±6° |
| Parking brake | Multidisc 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 | 30 L |
Tooling & air
| Air compressor | DLGF 0.7/8-5.5(B); 0.7 m³/min; 6-8 bar |
| Water pump | 1.5 kW / 3 m³/h; 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 | 10 km/h |
| Gradeability | 25% (14°) |
| 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 KJ212i?
Underground mining, Development drilling, Tunnel face drilling.
Which air compressor pairs with the KJ212i?
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.