📦 Underground Mining Drilling Rigs
Kaishan KSQ31 Mining DTH Drilling Rig
Model: KSQ31
Kaishan KSQ31 Mining DTH Drilling Rig (official model KSQ31). Source: Zhejiang Kaishan Heavy Industry product centre. ｜ 官方中文名：KSQ31型矿用潜孔钻机
Technical Specifications
| Model | Kaishan KSQ31 |
| Drilling Depth | 30 m |
| Hole Diameter | 76-152 mm |
| Drilling Method | DTH / Rotary |
| Engine Power | 118 kW |
| Weight | 12,000 kg |
| Dimension (L×W×H) | 8,500 × 2,200 × 2,600 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
76-152 mm
Drilling Depth
30 m
Engine Power
118 kW
Weight
12,000 kg
Dimension (L×W×H)
8,500 × 2,200 × 2,600 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 design for narrow underground tunnels and drifts
Powerful 118 kW diesel engine for hard rock drilling
Dual drilling method: DTH and rotary for versatile applications
Articulated boom with wide coverage reduces repositioning time
Heavy-duty four-wheel drive undercarriage for rough terrain
Ergonomic operator cabin with intuitive controls and excellent visibility
Applications
📍 Underground Mining
Production drilling, development drilling, and bolt hole drilling in underground mines.
Solution: The KSQ31's compact size and powerful hydraulic system enable efficient drilling in confined spaces, improving ore extraction productivity.
📍 Tunnel Excavation
Drilling blast holes for tunnel construction and underground caverns.
Solution: With its articulated boom and high penetration rate, the KSQ31 accelerates tunnel advance cycles and reduces labor costs.
📍 Underground Hydropower
Drilling drainage holes, grouting holes, and anchor holes in hydropower projects.
Solution: The rig's precise control and reliable performance ensure accurate hole placement in challenging geological conditions.
📍 Underground Storage
Drilling rock bolts and support holes in underground storage facilities.
Solution: The KSQ31's versatility and safety features make it ideal for underground storage construction and maintenance.
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 |
|---|---|---|---|---|---|---|---|
| KSQ31This model | Kaishan KSQ31 | 30 m | 76-152 mm | DTH / Rotary | 118 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
- Diesel engine
- Hydraulic pump and motor
- Articulated boom
- Drill head and rotary unit
- Feed system (cylinder and chain)
- Undercarriage with four-wheel drive
- Operator cabin
- Control panel and instrumentation
Working Principle
The Kaishan KSQ31 operates on a hydraulic drilling principle. A diesel engine drives a hydraulic pump that supplies pressurized oil to various components. The hydraulic motor rotates the drill string, while the feed system applies thrust to the bit. For DTH drilling, compressed air is directed through the drill pipe to power the down-the-hole hammer, which impacts the rock while rotating. For rotary drilling, the drill bit cuts the rock through rotation and feed force. The cuttings are flushed out of the hole by air or water. The articulated boom allows the operator to position the drill head accurately over the hole. The rig's control system enables precise adjustment of rotation speed, feed force, and air pressure to match rock conditions. This ensures optimal drilling efficiency, straight hole deviation, and extended bit life. The KSQ31 is designed for safe and reliable operation in underground environments, with features such as automatic rod handling and anti-jamming control.
Detailed Features
- ▸Compact and maneuverable for underground operations
- ▸High-power diesel engine for demanding rock conditions
- ▸Dual drilling method (DTH and rotary) for versatility
- ▸Articulated boom for wide coverage and precise positioning
- ▸Heavy-duty undercarriage for stability on rough terrain
- ▸Ergonomic cabin with low noise and vibration
- ▸Advanced hydraulic controls for optimal drilling parameters
- ▸CE certified and compliant with international safety standards
Packaging & Shipping
The Kaishan KSQ31 is shipped in a disassembled state for efficient container loading. It is protected with rust-proof coating and wrapped in heavy-duty plastic. Main components are secured on steel frames. Standard packaging includes one 40HQ container. Delivery time is 30-45 days after order confirmation. Port of shipment: Shanghai or Qingdao, China. Custom packaging and shipping arrangements are available upon request.
After-Sales Service
Kaishan offers a comprehensive after-sales service package. The KSQ31 comes with a 12-month warranty or 2000 working hours, whichever comes first. A 24-hour technical support hotline is available for troubleshooting. We provide on-site installation and commissioning services, as well as operator training. Genuine spare parts are stocked in regional warehouses for quick delivery. Regular maintenance reminders and service contracts are available to ensure optimal performance and extended equipment life.
Frequently Asked Questions
What hole diameters and drilling depth can the Kaishan KSQ31 achieve?+
The Kaishan KSQ31 drills hole diameters from 76 mm to 152 mm and drilling depths up to 30 m. It supports both DTH and rotary drilling methods. This range covers hard rock drilling in underground mines, tunnels and cavern excavations.
What engine powers the Kaishan KSQ31?+
The Kaishan KSQ31 is powered by a 118 kW diesel engine. The rig weighs 12,000 kg and measures 8,500 × 2,200 × 2,600 mm. The engine drives a powerful hydraulic system for hard rock drilling.
What air supply does the KSQ31 need for DTH drilling?+
The Kaishan KSQ31 uses DTH and rotary drilling methods for 76-152 mm holes up to 30 m deep. A matching DTH hammer and button bit are required for DTH operation. Contact us to confirm the air package for your hole size.
Where can the Kaishan KSQ31 be used?+
The Kaishan KSQ31 suits underground mining, tunnel excavation, underground hydropower and underground storage projects. Its compact frame and articulated boom allow precise positioning in narrow drifts. A heavy-duty four-wheel drive undercarriage handles rough terrain.
How is the Kaishan KSQ31 shipped?+
The Kaishan KSQ31 is shipped disassembled for efficient container loading, with rust-proof coating and heavy-duty plastic wrapping. Main components are secured on steel frames and standard packaging includes one 40HQ container. Delivery takes 30-45 days after order confirmation from Shanghai or Qingdao, China.
What warranty and support come with the KSQ31?+
The Kaishan KSQ31 comes with a 12-month warranty or 2000 working hours, whichever comes first. A 24-hour technical support hotline is available for troubleshooting. On-site installation, commissioning, operator training and genuine spare parts from regional warehouses are provided.
What are the main features of the Kaishan KSQ31?+
The Kaishan KSQ31 is a compact underground mining drilling rig with a 118 kW diesel engine, DTH and rotary drilling methods, and an articulated boom. It has a heavy-duty four-wheel drive undercarriage and an ergonomic operator cabin with intuitive controls. It is CE certified and compliant with international safety standards.
Related Insights
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Where This Machine Is Used
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
Rig + air compressor + drilling tools matched to your project. Get pre-matching advice from our engineers.
Recommended Equipment Configuration
Matched from real machine parameters — rig, compressor, hammer, bit and rod working as one system.
KSQ31
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
