📦 Underground Mining Drilling Rigs
Kaishan KJ314 Hydraulic Tunnelling Drilling Rig
Model: KJ314
Kaishan KJ314 Hydraulic Tunnelling Drilling Rig (official model KJ314). Source: Zhejiang Kaishan Heavy Industry product centre. ｜ 官方中文名：KJ314型矿用液压掘进钻车
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Technical Specifications
| Model | Kaishan KJ314 |
| Drilling Depth | 30 m |
| Hole Diameter | 45–102 mm |
| Drilling Method | Hydraulic Top Hammer |
| Engine Power | 74 kW |
| Weight | 9,500 kg |
| Dimension (L×W×H) | 8,200 × 1,600 × 2,200 mm |
Product Details
Technical Selection
Key parameters for matching this machine to your job. Send us your hole diameter, depth and rock condition and our engineers will confirm the right configuration.
Hole Diameter
45–102 mm
Drilling Depth
30 m
Engine Power
74 kW
Weight
9,500 kg
Dimension (L×W×H)
8,200 × 1,600 × 2,200 mm
Not sure this model fits? Tell us the hole diameter and depth — we will confirm the matching rig, compressor and hammer.
Check with an engineerKey Advantages
Compact and articulated chassis for excellent maneuverability in narrow underground drifts
Powerful hydraulic rock drill delivering high penetration rates in hard rock
Maximum drilling depth of 30 meters and hole diameter range of 45–102 mm
74 kW diesel engine with low emissions and reliable cold-start capability
Ergonomic operator station with joystick controls for reduced fatigue
Four-wheel drive and hydraulic steering for stable tramming on rough roads
Modular hydraulic system with easy access for maintenance and diagnostics
Optional safety features including FOPS canopy and automatic fire suppression
Applications
📍 Underground Metal Mining
Face drilling, roof bolting, and production drilling in hard rock metal mines.
Solution: The KJ314's powerful rock drill and flexible boom enable fast and accurate hole placement, improving cycle times and reducing dilution.
📍 Coal Mine Roadway Development
Drilling blast holes and roof bolt holes in coal mine entries and crosscuts.
Solution: With its compact size and low emission engine, the KJ314 operates safely in coal mines, while the hydraulic system provides reliable performance in demanding conditions.
📍 Tunneling and Civil Construction
Drilling for shotcrete, rock bolts, drainage, and grouting in tunnels.
Solution: The rig's articulated chassis and 360-degree boom rotation allow precise drilling in tunnel faces and walls, enhancing productivity and safety.
📍 Hydropower and Infrastructure
Drilling anchor holes, exploration holes, and consolidation holes in underground caverns.
Solution: The KJ314 delivers consistent drilling performance in challenging geological conditions, supported by Kaishan's global service network for minimal downtime.
Similar Models in This Category
This model is unique in its series — here are similar models from the same category.
| ☑ | Model | Model | Drilling Depth | Hole Diameter | Drilling Method | Engine Power | Inquire |
|---|---|---|---|---|---|---|---|
| KJ314This model | Kaishan KJ314 | 30 m | 45–102 mm | Hydraulic Top Hammer | 74 kW | Get a Quote | |
| KQLG-115 | KQLG-115 | 25 m | 90–152 mm | DTH and Rotary | 78 kW | Get a Quote | |
| KAISHAN KJ310 | Kaishan KJ310 | — | 32-76 mm | Rotary / DTH | 45 kW | Get a Quote | |
| KAISHAN KJ311 | Kaishan KJ311 | — | 32-76mm | Hydraulic percussion + rotation | 93 kW | Get a Quote | |
| KAISHAN KJ311D | Kaishan KJ311 | — | 32–89 mm | Top Hammer / DTH | 45 kW | Get a Quote | |
| KJ422 | Kaishan KJ422 | — | 76-152 mm | DTH / Rotary | — | Get a Quote | |
| KJ421 | Kaishan KJ421 | — | — | Hydraulic percussion | 93 kW | Get a Quote | |
| KM211 | Kaishan KM211 | — | — | Top Hammer / DTH | 60 kW | Get a Quote | |
| KM311 | Kaishan KM311 | — | — | DTH / Rotary | 60 kW | Get a Quote |
Compare 2–3 models? Tick the boxes and send them together — we will quote each one for you.
Tip: select multiple models and click “Inquire All” — the selected models are added to the quote form automatically, so you get a faster quotation.
Not sure which model fits your project? Send us your working pressure and air demand — our engineers will recommend the right one.
Main Components
- Hydraulic rock drill
- Drill boom and feed beam
- Articulated chassis with four-wheel drive
- Diesel engine and hydraulic pump
- Operator's cabin with joystick controls
- Drill string and drill bit
- Flushing system (water/air)
- Electrical control system
Working Principle
The Kaishan KJ314 underground mining drilling rig operates on a hydraulic top hammer principle. A diesel engine drives a hydraulic pump that supplies pressurized oil to the hydraulic rock drill, boom cylinders, feed motor, and tramming motors. The rock drill converts hydraulic energy into high-frequency impact energy, which is transmitted through the drill string to the drill bit. Simultaneously, the drill string rotates and is fed forward by the feed mechanism, allowing the bit to crush rock efficiently. Flushing water or air is injected through the drill string to remove cuttings from the hole. The boom, with its lift, swing, and tilt cylinders, positions the feed beam accurately at the desired drilling angle. The operator controls all functions via joysticks from an ergonomic seat, ensuring precise and safe operation. The four-wheel-drive articulated chassis enables the rig to tram efficiently between working faces. This integrated system results in high drilling speed, accurate hole alignment, and reliable performance in underground environments.
Detailed Features
- ▸High-frequency hydraulic rock drill for fast penetration in hard rock
- ▸Maximum drilling depth of 30 meters
- ▸Hole diameter range from 45 mm to 102 mm
- ▸74 kW diesel engine with low emissions
- ▸Compact dimensions for narrow vein mining
- ▸Four-wheel drive and articulated steering for maneuverability
- ▸Ergonomic operator station with intuitive controls
- ▸Modular design for easy maintenance and serviceability
Packaging & Shipping
The Kaishan KJ314 is shipped in a disassembled state for efficient container loading. The main components are securely packed on steel pallets and protected with anti-rust film and wooden crates. The rig typically fits into one 40-foot high-cube container. Shipping is arranged from major Chinese ports such as Shanghai or Qingdao, with delivery times ranging from 30 to 45 days depending on destination and order volume. All packages are clearly labeled with handling instructions and include a detailed packing list. Customized packaging and shipping solutions are available upon request.
After-Sales Service
Kaishan offers comprehensive after-sales service for the KJ314, including a 12-month warranty on major components (excluding wear parts). A 24-hour technical support hotline is available to assist with troubleshooting and operation questions. We provide on-site installation and commissioning services, as well as operator training to ensure safe and efficient use of the rig. A global network of spare parts warehouses ensures quick availability of critical components, minimizing downtime. Regular maintenance reminders and service contracts are also available to keep your equipment in optimal condition.
Frequently Asked Questions
What is the drilling depth and hole diameter range of the Kaishan KJ314?+
The Kaishan KJ314 drills to a maximum depth of 30 m with a hole diameter range of 45–102 mm. It uses the hydraulic top hammer drilling method. This range covers face drilling, roof bolting and small-scale production drilling.
What engine powers the Kaishan KJ314?+
The Kaishan KJ314 is powered by a 74 kW diesel engine. The engine is listed with low emissions and reliable cold-start capability. It also provides the tramming power for the four-wheel drive chassis.
What is the weight and dimension of the Kaishan KJ314?+
The Kaishan KJ314 weighs 9,500 kg and measures 8,200 × 1,600 × 2,200 mm (L×W×H). The compact dimensions suit narrow underground drifts and confined tunnels. Four-wheel drive and articulated steering support tramming on rough roads.
Where can the Kaishan KJ314 be used?+
The Kaishan KJ314 is used in underground metal mining, coal mine roadway development, tunneling and civil construction, and hydropower and infrastructure projects. Its compact articulated chassis suits confined tunnels and stopes. It is built for hard rock conditions.
How is the Kaishan KJ314 shipped?+
The Kaishan KJ314 is shipped disassembled for efficient container loading, with main components packed on steel pallets and protected by anti-rust film and wooden crates. It typically fits into one 40-foot high-cube container. Shipping is arranged from major Chinese ports such as Shanghai or Qingdao, with delivery times of 30 to 45 days depending on destination.
What after-sales service is offered for the Kaishan KJ314?+
Kaishan offers a 12-month warranty on major components of the KJ314, excluding wear parts. A 24-hour technical support hotline is available for troubleshooting and operation questions. On-site installation, commissioning and operator training are also provided.
What are the key features of the Kaishan KJ314?+
The Kaishan KJ314 features a high-frequency hydraulic rock drill for fast penetration in hard rock, a maximum drilling depth of 30 meters and a hole diameter range of 45 mm to 102 mm. It has a 74 kW diesel engine with low emissions and compact dimensions for narrow vein mining. Four-wheel drive and articulated steering provide maneuverability.
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Is This Rig Right for My Project?
Answer seven questions about your hole, depth and rock — get a matched rig, compressor, hammer, bit and rod.
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Recommended System
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Recommended Equipment Configuration
Matched from real machine parameters — rig, compressor, hammer, bit and rod working as one system.
KJ314
Why matched
Parameter-matched to the machine on this page.
K10
- Hole range
- 254–311
- Air flow
- 22–65 m³/min
- Working pressure
- 10+ bar
- Bit shank
- K10**
Why matched
Hole range 254–311 mm covers your requirement ?–? mm.
K10
- Hole range
- 275–350
- Pressure class
- 高风压 (High pressure)
Why matched
Hole range 275–350 mm covers your requirement ?–? mm.
System requirement: 10 bar / 65 m³/min · ?–? mm
