
📦 Surface Mining Drilling Rigs
Kaishan KG940A DTH Drilling Rig
Model: KG940A
The Kaishan KG940A is a high-performance DTH drilling rig designed for demanding open-pit mining, quarrying, and construction projects. Powered by a reliable diesel engine, it delivers efficient drilling with a hole diameter range of 90–165 mm and a maximum depth of 30 meters. Its robust track-mounted chassis ensures stability on rough terrain, while the advanced rotary head and powerful feed system optimize penetration rates. The KG940A features a user-friendly control panel, excellent maneuverability, and low operating costs. Ideal for blast hole drilling, it combines durability with precision, making it a valuable asset for contractors seeking productivity and reliability in challenging environments.
Technical Specifications
| Model | KG940A |
| Drilling Depth | 30 m |
| Hole Diameter | 90–165 mm |
| Drilling Method | DTH (Down-The-Hole) |
| Engine Power | 58 kW |
| Weight | 6,450 / 6,900 kg |
| Dimension (L×W×H) | 7,500 × 2,500 × 3,200 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
90–165 mm
Drilling Depth
30 m
Engine Power
58 kW
Weight
6,450 / 6,900 kg
Dimension (L×W×H)
7,500 × 2,500 × 3,200 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
Powerful diesel engine for reliable performance in remote areas
Track-mounted chassis for superior mobility on rough terrain
DTH hammer delivers high penetration rates in hard rock
Drilling depth up to 30 meters and hole diameter 90–165 mm
Ergonomic control panel for easy operation and monitoring
Dust suppression system for environmentally friendly drilling
Robust construction ensures durability and low maintenance
Applications
📍 Open-Pit Mining
Blast hole drilling in iron, copper, and coal mines.
Solution: KG940A's high penetration rate and depth capacity optimize drilling patterns, reducing cost per ton.
📍 Quarrying
Drilling blast holes in limestone, granite, and marble quarries.
Solution: The rig's mobility and stability allow quick setup and precise hole placement, increasing quarry productivity.
📍 Construction
Foundation drilling, site preparation, and rock excavation.
Solution: Compact design and powerful engine enable efficient drilling in confined urban job sites.
📍 Water Well Drilling
Drilling water wells in rural and remote areas.
Solution: DTH capability and depth range make KG940A suitable for medium-depth water wells, providing reliable water access.
KG Series Models
Compare specifications across the series to find the right model.
| ☑ | Model | Model | Drilling Depth | Hole Diameter | Drilling Method | Engine Power | Inquire |
|---|---|---|---|---|---|---|---|
| KG940AThis model | KG940A | 30 m | 90–165 mm | DTH (Down-The-Hole) | 58 kW | Get a Quote | |
| KG430 | Kaishan KG430 | 30 m | 90–165 mm | DTH (Down-The-Hole) | 73 kW | Get a Quote | |
| KG520 | Kaishan KG520 | 30 m (single pass); 100 m (with extension rods) | 90–165 mm | Down-The-Hole (DTH) drilling | 194 kW (260 HP) | Get a Quote | |
| KG590 | Kaishan KG590 | 30 m | 90–165 mm | DTH (Down-The-Hole) Hammer Drilling | 194 kW (260 HP) | Get a Quote | |
| KG590H | KG590H | 25 m | 105-152 mm | DTH (Down-The-Hole) Drilling | 194 kW (260 HP) | Get a Quote | |
| KG720 | Kaishan KG720 | 30 m | 90–165 mm | Down-the-Hole (DTH) Drilling | 194 kW | Get a Quote | |
| KG420B | Kaishan KG420B | 25 m | 90-130 mm | Down-the-Hole (DTH) | 58 kW | Get a Quote | |
| KG550 | KG550 | 30 m | 115–165 mm | DTH (Down-The-Hole) hammer drilling | 73.5 kW | Get a Quote | |
| KG920A | Kaishan KG920A | 25 m | 90–165 mm | DTH (Down-The-Hole) Hammer | 118 kW (158 hp) | Get a Quote | |
| KG920B | KG920B | 25 m | 90-165 mm | DTH (Down-The-Hole) | 194 kW | Get a Quote | |
| KG920D | Kaishan KG920D | 25 m | 90–165 mm | Down-the-Hole (DTH) Hammer Drilling | 194 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
- DTH hammer
- Drill bit
- Rotary head
- Feed system
- Track chassis
- Control panel
- Dust suppression system
Working Principle
The Kaishan KG940A operates on the down-the-hole (DTH) drilling principle. A DTH hammer is attached to the drill string and positioned at the bottom of the hole. Compressed air is supplied through the drill pipe to the hammer, driving the piston to strike the drill bit with high-frequency impacts. Simultaneously, the rotary head rotates the drill string, indexing the bit for efficient rock breakage. The feed system applies optimal thrust to maintain bit contact. Cuttings are flushed out by the exhaust air through the annulus. This method minimizes energy loss and maximizes penetration rate, especially in hard rock formations. The rig's hydraulic system controls rotation, feed, and track movement, ensuring smooth and precise operation.
Detailed Features
- ▸High-efficiency DTH drilling
- ▸Track-mounted for rough terrain
- ▸Powerful diesel engine
- ▸Drilling depth up to 30 m
- ▸Hole diameter 90–165 mm
- ▸Ergonomic controls
- ▸Dust suppression
- ▸Durable and low maintenance
Packaging & Shipping
The Kaishan KG940A is shipped in a 40-foot container or flat rack, depending on configuration. It is securely fastened with heavy-duty straps and protected with anti-rust coating and wrapping. Delivery time is 30–45 days after order confirmation. Port of shipment: Shanghai or Ningbo, China. Custom packaging and shipping arrangements are available upon request.
After-Sales Service
Kaishan offers a 12-month warranty on the KG940A (excluding wear parts). 24/7 technical support is available via phone or email. On-site training for operators and maintenance staff can be arranged. A global network of spare parts warehouses ensures quick delivery. Regular maintenance reminders and remote diagnostics are provided to maximize uptime.
Frequently Asked Questions
What hole diameter and drilling depth does the KG940A cover?+
The KG940A drills hole diameters of 90–165 mm to a maximum drilling depth of 30 m. It uses the DTH (Down-The-Hole) drilling method. This range suits blast hole drilling in open-pit mining and quarrying.
What engine power does the KG940A use?+
The KG940A is powered by a 58 kW diesel engine. The diesel engine is specified for reliable performance in remote areas. The rig weighs 6,450 / 6,900 kg.
What are the dimensions and weight of the KG940A?+
The KG940A measures 7,500 × 2,500 × 3,200 mm (L×W×H) and weighs 6,450 / 6,900 kg. It is a track-mounted rig. The track chassis provides stability and mobility on rough terrain.
Which applications suit the KG940A?+
The KG940A is applied in open-pit mining, quarrying, construction and water well drilling. It handles hole diameters of 90–165 mm to a depth of 30 m. The DTH hammer delivers high penetration rates in hard rock.
How is the KG940A shipped?+
The KG940A is shipped in a 40-foot container or flat rack, depending on configuration. It is secured with heavy-duty straps and protected with anti-rust coating and wrapping. Delivery time is 30–45 days after order confirmation, from Shanghai or Ningbo, China.
What warranty and support come with the KG940A?+
The KG940A carries a 12-month warranty excluding wear parts. 24/7 technical support is available via phone or email. On-site training for operators and maintenance staff can be arranged.
What maintenance features does the KG940A have?+
The KG940A is built for durability and low maintenance, with a dust suppression system for drilling. Regular maintenance reminders and remote diagnostics are provided. A global network of spare parts warehouses supports quick delivery.
Related Insights
Related Projects
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.
Need Technical Support?
Request information and get a quote from our engineers.
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.

KG940A
- Hole range
- 105–203 mm
Why matched
Parameter-matched to the machine on this page.

KSZJ-27/23-30/17K
- Working pressure
- 17 bar
- Air flow
- 27 m³/min
- Alternative
- LGCY-26/25 · 26 m³/min · 25 bar
- Heavy-duty option
- LGCY-45/25-37/35V · 45 m³/min · 25 bar
Why matched
Covers the required 10 bar / 26 m³/min air demand (rated 17 bar / 27 m³/min).

K6
- Hole range
- 155–190
- Air flow
- 9–26 m³/min
- Working pressure
- 10+ bar
- Bit shank
- K6** / COP64/DHD360
Why matched
Hole range 155–190 mm covers your requirement 105–203 mm.

K5
- Hole range
- 135–216
- Pressure class
- 高风压 (High pressure)
Why matched
Hole range 135–216 mm covers your requirement 105–203 mm.

76mm Drill Rods
- Rod spec
- Φ76×3000 mm
Why matched
Matches the rig's official rod specification Φ76×3000 mm.
System requirement: 10 bar / 26 m³/min · 105–203 mm










