Kaishan Underground Drilling Rigs/Underground Scaling Rigs (Rock Scalers)
KQ311
KQ311 is a hydraulic scaling rig for scaling operations in tunnels, non-coal mines and underground projects. Its folding arm and hydraulic hammer support work on the face, roof, side walls and floor.
Dimensions & weight — Overall dimensions (L × W × H)
8800 × 1750 × 2650 mm
Dimensions & weight — Weight
12000 kg
Diesel engine
Cummins B3.9CS4-80C; 59 kW / 2500 rpm
Drive & handling — Drive system
Closed travelling system with four-wheel drive
Overview
KQ311 is a hydraulic scaling rig for scaling operations in tunnels, non-coal mines and underground projects. Its folding arm and hydraulic hammer support work on the face, roof, side walls and floor.
Key highlights
- ✓The folding arm and translation mechanism support all-round scaling of the working face, roof, side walls and floor.
- ✓A SOOSAN SB30 hydraulic hammer provides 350 J impact energy at 9-16 Hz with 25-40 L/min drive flow and 90-125 bar working pressure.
- ✓Proportional pilot control, articulated four-wheel drive and compact turning geometry support manoeuvring underground.
- ✓The cab can tilt and lift, while the FOPS & ROPS roof improves operator protection.
Applications: Scaling and rock-clearing operations in tunnels, non-coal mines and underground projects. · Work on the face, roof, side walls and floor in underground projects.
Specifications
Request the current specification sheet for this model using the button above.
Dimensions & weight
| Overall dimensions (L × W × H) | 8800 × 1750 × 2650 mm |
| Weight | 12000 kg |
Other specifications
| Diesel engine | Cummins B3.9CS4-80C; 59 kW / 2500 rpm |
Drive & handling
| Drive system | Closed travelling system with four-wheel drive |
| Swing angle | ±6° |
| Tyres | 11.00-20 |
| Steering angle | ±40° |
| Turning radius (inner / outer) | 3150 / 5610 mm |
| Travelling braking | Wet brake |
| Maximum tramming speed | 10 km/h |
| Maximum climbing angle | 25% (14°) |
| Wheelbase | 3200 mm |
| Wheel tread | 1400 mm |
| Ground clearance | 300 mm |
Other specifications
| Hydraulic hammer | Shuishan SOOSAN SB30 |
| Impact energy | 350 J |
| Impact frequency | 9-16 Hz |
| Drive flow | 25-40 L/min |
| Working pressure | 90-125 bar |
| Swing arm angle | ±30° |
| Translational arm pitch angle | 45° |
| Mid-arm lifting angle | 60° |
| Front-arm pitch angle | 95° |
| Hydraulic hammer pitch angle | 120° |
| Swing-cylinder angle | ±90° |
| Drill arm expansion and contraction | 1200 mm |
| Maximum working height | 8300 mm |
| Maximum working width | 8800 mm |
| Backward angle of cab | 15° |
| Cab lift | 400 mm |
| Water pump power | 0.5 kW |
| Water flow | 2 L/min |
| Lifting safety roof | FOPS & ROPS certified |
Applications
- Underground mining
- Rock scaling
- Ground 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 KQ311?
Underground mining, Rock scaling, Ground support.
Which air compressor pairs with the KQ311?
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.