Kaishan Underground Drilling Rigs/Underground Scaling Rigs (Rock Scalers)
KQ311
KQ311 Hydraulic Scaling Rig is diesel-driven, specially used for scaling operations in tunnels and underground projects, with machine dimensions of 8,800×1,750×2,650mm and weight of 12,000kg. It is equipped with a Shuishan SB30 hydraulic hammer (350J impact energy, 9-16Hz frequency), max working height 8,300mm and max working width 8,800mm, powered by Cummins B3.9CS4-80C engine (59KW).
Engine
Cummins B3.9CS4-80C，59KW/2500rpm
Weight
12000 kg
Overview
KQ311 Hydraulic Scaling Rig is diesel-driven, specially used for scaling operations in tunnels and underground projects, with machine dimensions of 8,800×1,750×2,650mm and weight of 12,000kg. It is equipped with a Shuishan SB30 hydraulic hammer (350J impact energy, 9-16Hz frequency), max working height 8,300mm and max working width 8,800mm, powered by Cummins B3.9CS4-80C engine (59KW).
Key highlights
- ✓All-round operation: folding arm with hydraulic hammer and translation mechanism driven by rotating cylinder for scaling of working face, roof, side walls and floor
- ✓Powerful hydraulic hammer: Shuishan SB30, 350J impact energy, 9-16Hz impact frequency, 25-40L/Min drive flow, 90-125Bar working pressure
- ✓Flexible control: proportional pilot control hydraulic system; parallel arm tilt 45°, middle boom lift 60°, front arm tilt 95°, hammer tilt 120°, boom extension 1,200mm
- ✓Mobility and safety: four-wheel-drive closed travel system, turning radius (inner/outer) 3,150/5,610mm, max travel speed 10km/h, max climbing 25% (14°), FOPS & ROPS certified canopy
- ✓Comfort and reach: cab tilt 15° and lift 400mm, max working height 8,300mm and max working width 8,800mm for large cross-section coverage
Applications: Scaling (rock clearing) operations in tunnels, non-coal mines and various underground projects.
Genuine Kaishan equipment supplied through our authorized distribution channel, with configuration, export coordination, spare-parts and after-sales support.
Specifications
Request the current specification sheet for this model using the button above.
Drilling capability
| Max working height (mm) | 8300 |
| Max working width (mm) | 8800 |
Engine & drive
| Engine power | Cummins B3.9CS4-80C，59KW/2500rpm |
Dimensions & weight
| Dimensions (mm) | 8800×1750×2650 |
| Weight (kg) | 12000 |
Drive & handling
| Swing angle | ±6° |
| Boom extension | 1200mm |
Performance & mobility
| Travel speed | 10km/h |
| Ground clearance (mm) | 300 |
| Gradeability | 14° |
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.