Kaishan Underground Drilling Rigs/Underground Production Drilling Rigs
KSJ21
KSJ21 Hydraulic Mining Drilling Rig is mainly used for blast hole drilling in medium-length hole mining and anchor cable support drilling, applicable to tunnels of 2.9-4m height and 2.8-4.5m width, with economical drilling depth of 35m (25m with automatic rod handling), total weight about 11,000kg and 1,600mm machine width. It is equipped with HC95LQw/22U/HC112LH rock drills (22-26KW impact power, 955-1,550Nm torque), drilling holes of Φ64-127mm, with 75-90kW electric motors.
Hole diameter
64-102 / 64-127 mm
Drilling depth
35 m
Overview
KSJ21 Hydraulic Mining Drilling Rig is mainly used for blast hole drilling in medium-length hole mining and anchor cable support drilling, applicable to tunnels of 2.9-4m height and 2.8-4.5m width, with economical drilling depth of 35m (25m with automatic rod handling), total weight about 11,000kg and 1,600mm machine width. It is equipped with HC95LQw/22U/HC112LH rock drills (22-26KW impact power, 955-1,550Nm torque), drilling holes of Φ64-127mm, with 75-90kW electric motors.
Key highlights
- ✓Medium-deep hole capability: economical drilling depth of 35m, optional 27+1 automatic rod handling module (915mm drill rod, 25m automatic rod depth) for single-person operation
- ✓360° drilling: 360° beam rotation with swing boom and translation function for 360° and parallel drilling, ring working angle 360°, beam tilt 30° forward / 65° backward
- ✓High-impact rock drills: HC95LQw/22U / HC112LH, 22-26KW impact power, 955-1,550Nm torque, hole diameter Φ64-127mm, rod threads T38/T45/T51
- ✓Drilling stability: heavy-duty aluminum-alloy medium-deep-hole beam with front/rear hydraulic center supports and rod oil cylinder for maximum borehole straightness
- ✓Mobility and control: closed-hydraulic articulated mining chassis (±36° steering), 1.6m wide for small and medium tunnels; trolley workbench with good sight, optional wireless remote control
Applications: Medium-length hole blast drilling and anchor cable support drilling in underground mines.
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
| Hole diameter (mm) | 64-102 / 64-127 |
| Tunnel working range | H 2.9-4 × W 2.8-4.5 m |
| Drilling depth (m) | 35 |
| Drilling depth with automatic rod handling (m) | 25 |
Engine & drive
| Chassis engine | Cummins B3.9CS4-80C 59KW/2500rpm |
| Impact power | 24KW/22KW / 26KW |
| Frequency | 57Hz/53Hz / 46Hz |
| Motor power | 75kW / 90kW |
| Voltage | 380V 50Hz |
Drive & handling
| Mast compensation length (mm) | 700 |
Mud & hydraulic
| Fuel tank (L) | 30 |
| Filtration precision | 10μ |
| Hydraulic oil (L) | 240 |
Tooling & air
| Rock drill | HC95LQw/22U / HC112LH |
Performance & mobility
| Travel speed | 10km/h |
| Gradeability | 25%(14°) |
Other specifications
| Noise | <100dB(A) |
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 KSJ21?
Underground mining, Production drilling, Blast-hole drilling.
Which air compressor pairs with the KSJ21?
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.