Kaishan Underground Drilling Rigs/Underground Rock Bolting Drilling Rigs
KM311
KM311 hydraulic rock bolting rig is specially designed for the construction of rock bolts in the pipe seam; it can pass a section 2.5 m wide and 2.2 m high. It is suitable for anchoring operations in tunnels whose section extends to a width of over 3 m and a height of over 3 m.
Dimensions & weight — Overall dimensions (L × W × H)
10700 × 1750 × (2000/3000) mm
Dimensions & weight — Weight
approx. 12000 kg
Dimensions & weight — Tramming speed on flat ground
10 km/h
Dimensions & weight — Maximum climbing capacity
25% (14°)
Overview
KM311 hydraulic rock bolting rig is specially designed for the construction of rock bolts in the pipe seam; it can pass a section 2.5 m wide and 2.2 m high. It is suitable for anchoring operations in tunnels whose section extends to a width of over 3 m and a height of over 3 m.
Key highlights
- ✓Complete functions: the beam has two working stations and is equipped with a magazine having a storage capacity of 10 rock bolt rods, along with the optional protective netting module; it is capable of drilling, netting and installation of rock bolts.
- ✓High safety: operators are protected by the ceiling, far away from the danger area.
- ✓High efficiency: the stepped piston used for the high-frequency rock drill improves the transmission efficiency of impact wave and drilling speed, and reduces the consumption of drilling tools.
- ✓The drill rig provides a good view for the operator; the articulated chassis of four-wheel drive ensures flexible, quick and safe driving in the narrow tunnel.
- ✓Considerable space and automatic functions let the driver concentrate on drilling in a safe, fast and accurate manner; the relevant parts are kept in good protection for easy maintenance.
Applications: Rock-bolt construction in the pipe seam. · Anchoring operations in tunnels wider than 3 m and higher than 3 m. · Drilling, protective netting and rock-bolt installation with the optional netting module.
Specifications
Request the current specification sheet for this model using the button above.
Dimensions & weight
| Overall dimensions (L × W × H) | 10700 × 1750 × (2000/3000) mm |
| Weight | approx. 12000 kg |
| Tramming speed on flat ground | 10 km/h |
| Maximum climbing capacity | 25% (14°) |
Other specifications
| Noise level | < 100 dB(A) |
| Lifting safety roof | FOPS & ROPS certified |
Tooling & air
| Air compressor | DLGF 0.7/8-5.5(B) |
| Capacity of air compressor | 0.7 m³/min |
| Pressure | 6-8 bar |
| Device of shank lubrication | Electronic pulse lubrication pump |
| Oil consumption of lubrication | 180-250 g/h |
| Air consumption of lubrication | 0.3 m³/min |
| Water pump (printed power / capacity options) | Power: 1.5 kW; Capacity: 3 m³/h |
Drive & handling
| Diesel engine | Cummins B3.9CS4-80C, 59 kW / 2500 rpm |
| Drive system | Four-wheel drive system with wet axle (closed travelling system) |
| Travelling braking | Wet brake |
| Parking braking | Multidisc brake |
| Fuel tank | 60 L |
Other specifications
| Model of drill boom | K26F |
| Boom extension | 1200 mm |
Drilling capability
| Rock drill (drilling / bolt-rod installation) | HC25 / HC28 for both functions; rod size R32; impact power 8 kW (HC25) / 10 kW (HC28); impact frequency 55-65 Hz (HC25) / 47-53 Hz (HC28); hole diameter Φ32-51 mm for drilling |
| Beam rotation | 360° |
| Feed extension | 310 mm |
| Applicable height of tunnel (HC25) | About drill-rod length + 1500 mm |
| Applicable height of tunnel (HC28) | About drill-rod length + 1700 mm |
Engine & drive
| Motor | 45 kW |
| Impact / feed / positioning pump | Axial variable displacement piston pump |
| Rotation pump | Gear pump |
| Filter fineness | 10 μ |
| Hydraulic oil tank | 240 L |
| Hydraulic cooler | Water cooler |
| Working voltage | 380 V |
| Frequency | 50 Hz |
| Starting method | Star-triangle |
| Cable specifications | 3×35+3G6 |
Other specifications
| Passable section (W × H) | 2.5 × 2.2 m |
| Anchoring tunnel section | Width over 3 m; height over 3 m |
Applications
- Underground mining
- Roof bolting
- Anchor support
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 KM311?
Underground mining, Roof bolting, Anchor support.
Which air compressor pairs with the KM311?
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.