Kaishan drilling rigs
Underground Tunnelling (Development) Drilling Rigs
Hydraulic tunnelling drill jumbos — KJ Series for face development, from narrow tunnels to two-boom machines.
Applications
- Underground mining
- Development drilling
- Tunnel face drilling
Key features
- ✓One-boom and two-boom jumbos (KJ421/422)
- ✓Narrow-tunnel variant KJ215
- ✓Intelligent models with rock-drilling robotics (KJ212i/KJ311i)
- ✓Hydraulic rock drills with auto rod handling
- ✓Matched to tunnel widths from about 3.2 m
Quick Selection Guide
Use the published hole range, drive arrangement and duty notes to narrow the KJ Series range before opening a model page.
Narrow tunnels (≈3.2 m heading)
Matched to smaller cross-sections (published tunnel-size range).
Not sure which model fits your project? Send your hole diameter, depth, site conditions and compressor requirement — we will confirm the match before quotation.
Full Specification Comparison
Compare all models below. Click any model name to view full specifications and inquiry details.
| Model | Machine | Tunnel working range | Impact power | Rock drill | Travel speed |
|---|---|---|---|---|---|
| KJ314 → | KJ314 Hydraulic Tunnelling Drilling Rig (Secondary Crushing) | work range ≥2.6×2.6 m | 13kW | 1×HC50 / R38 | 10km/h |
| KJ211 → | KJ211 Underground Development Drill Rig | 7-25 m² section | 13/18/21/22KW | HC50 / 18U / HC95LMH/22U | 10km/h |
| KJ212 → | KJ212 Hydraulic Tunnelling Drilling Rig | 3.5×1.8 - 5×4.8 m | 13KW / 18KW | HC50 / 18U | 10km/h |
| KJ212i → | KJ212i Underground Development Drill Rig | 3.5×2.4 - 9×5.8 m | 13KW / 18KW / 21KW/22KW | HC50 / 18U / HC95LMH/22U | 10km/h |
| KJ215 → | KJ215 Hydraulic Tunnelling Drilling Rig (Narrow tunnel) | 5-25 m² section | 13KW / 18KW | HC50 / 18U | 10km/h |
| KJ310 → | KJ310 Hydraulic Tunnelling Drilling Rig | 12-35 m² section | 13/18/21/22KW | HC50 / 18U / HC95LMH/22U | 2.5km/h |
| KJ311 → | KJ311 Hydraulic Tunnelling Drilling Rig | 12-35 m² section | 13/18/21/22KW | HC50 / 18U / HC95LMH/22U | 10km/h |
| KJ311i → | KJ311i Underground Development Drill Rig | 3.5×3.5 - 9×5.8 m | 13KW / 18KW / 21KW/22KW | HC50 / 18U / HC95LMH/22U | 10km/h |
| KJ421 → | KJ421 Hydraulic Tunnelling Drilling Rig | 16-68 m² section | 21KW / 22KW | 2×HC95LMH / 22U | 10km/h |
| KJ422 → | KJ422 Hydraulic Tunnelling Drilling Rig | 16-95 m² section | 21KW / 22KW | 2×HC95LMH / 22U | 10km/h |
Note: Drilling depth (m), Dimensions (mm) parameters are pending verification for part of this range — contact our sales team for the figures on specific models.
Configuration & customization
Each rig can be configured to your project. Standard and optional packages include:
- Wireless remote control
- Auto rod changer
Frequently asked questions
How do I choose between KJ314 and KJ211?
Compare the two rows in the model table above — focus on hole diameter, drilling depth and power against your project conditions. Our team can confirm the match for your site.
What applications is this series suited to?
Underground mining, Development drilling, Tunnel face drilling.
Can the equipment be configured to my project?
Yes — standard and optional packages are listed under Configuration & customization above. Send your project details through the inquiry form and we will confirm the matching configuration.
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