Kaishan Underground Drilling Rigs/Underground Production Drilling Rigs
KS311
KS311 is a hydraulic production drilling rig for medium-length blast holes and anchor-cable support in tunnels 3.5-5 m high and wide. The rotating boom support, swing mechanism and translational guide support 360° drilling and parallel drilling within 3 m. Horizontal and downward drilling require additional compressed air for cuttings removal; please consult the manufacturer for details.
Drilling capability — Tunnel working range
Height 3.5-5 m; width 3.5-5 m
Drilling capability — Drilling depth
42 m
Drilling capability — Rock drill
HC95LQw / 22U / HC112LH
Drilling capability — Hole diameter
HC95LQw / 22U: 64-102 mm; HC112LH: 64-127 mm
Overview
KS311 is a hydraulic production drilling rig for medium-length blast holes and anchor-cable support in tunnels 3.5-5 m high and wide. The rotating boom support, swing mechanism and translational guide support 360° drilling and parallel drilling within 3 m. Horizontal and downward drilling require additional compressed air for cuttings removal; please consult the manufacturer for details.
Key highlights
- ✓An automatic rod-changing system stores 27 rods and supports drilling depths up to 42 m.
- ✓Front and rear hydraulic feed supports and a rod-support cylinder help stabilise drilling and maintain hole straightness.
- ✓A trolley-mounted control station provides a clear view; wireless remote control is optional.
- ✓The articulated, closed-circuit four-wheel-drive chassis supports manoeuvring in small and medium-sized tunnels.
- ✓A stepped-piston high-frequency rock drill improves impact-wave transmission and reduces drilling-tool consumption.
Applications: Medium-length production blast holes in underground mines. · Anchor-cable support drilling. · Tunnels 3.5-5 m high and 3.5-5 m wide.
Specifications
Request the current specification sheet for this model using the button above.
Drilling capability
| Tunnel working range | Height 3.5-5 m; width 3.5-5 m |
| Drilling depth | 42 m |
| Rock drill | HC95LQw / 22U / HC112LH |
| Hole diameter | HC95LQw / 22U: 64-102 mm; HC112LH: 64-127 mm |
| Impact power | HC95LQw: 24 kW; 22U: 22 kW; HC112LH: 26 kW |
| Impact frequency | HC95LQw: 57 Hz; 22U: 53 Hz; HC112LH: 46 Hz |
| Rotation torque | HC95LQw: 955 N·m; 22U: 1550 N·m; HC112LH: 1342 N·m |
| Rod thread | HC95LQw / 22U: T38, T45; HC112LH: T51 |
| Beam pitch | Forward 20°; backward 65° |
| Ring angle | 360° |
| Parallel drilling | 1500 mm each side |
| Rod length | 1525 mm; 1830 mm |
| Feed beam length | 1525 mm rod: 3500 mm beam; 1830 mm rod: 3800 mm beam |
| Feed extension | 1200 mm for both listed rod lengths |
| Rod magazine | 27 rods |
Engine & drive
| Chassis engine | Cummins B3.9CS4-80C, 96 kW / 2500 rpm |
| Electric motor (power unit) | 75 kW; 90 kW |
| Electrical supply | 380 V; 50 Hz; star-delta starting |
Dimensions & weight
| Dimensions (L × W × H) | 9700 × 2400 × 3300 mm; travel length 9950 mm |
| Weight | approx. 16000 kg |
Drive & handling
| Drive system | Closed-circuit hydraulic four-wheel drive |
| Steering & axle | Articulated steering ±40°; rear axle swing ±10° |
| Tyres | 12.00-20 |
| Travel brake | Double-circuit hydraulic brake |
| Parking brake | Reducer wet 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 μm; water cooler |
| Fuel tank | 60 L |
Tooling & air
| Air compressor | DLGF 0.7/8-5.5(B); 0.7 m³/min; 6-8 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 | 10 km/h on level ground |
| Gradeability | 25% (14°) |
Applications
- Underground mining
- Production drilling
- Blast-hole 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 KS311?
Underground mining, Production drilling, Blast-hole drilling.
Which air compressor pairs with the KS311?
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.