📦 Surface Mining Drilling Rigs
Kaishan KG420S(H) Surface DTH Drilling Rig
Model: KG420S(H)
Kaishan KG420S(H) Surface DTH Drilling Rig (official model KG420S(H)). Source: Zhejiang Kaishan Heavy Industry product centre.
Technical Specifications
| Model | Kaishan KG420S(H) |
| Drilling Depth | 30 m |
| Hole Diameter | 90-165 mm |
| Drilling Method | DTH Hammer Drilling |
| Engine Power | 194 kW |
| Weight | 15,000 kg |
| Dimension (L×W×H) | 10,500 × 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
194 kW
Weight
15,000 kg
Dimension (L×W×H)
10,500 × 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 194 kW diesel engine for efficient drilling in hard rock
Maximum drilling depth of 30 meters with hole diameters from 90 to 165 mm
Hydraulic top-head drive with variable speed and torque control
Track-mounted undercarriage for superior mobility on rough terrain
Ergonomic operator cabin with climate control and excellent visibility
Automatic rod handling system for improved safety and productivity
Centralized lubrication system for simplified maintenance
Robust construction with corrosion-resistant materials for long service life
Applications
📍 Open-Pit Mining
Blast hole drilling in large-scale open-pit mines for ore extraction.
Solution: The KG420S(H) delivers precise hole alignment and fast penetration, reducing drilling costs per ton and improving fragmentation for efficient loading and hauling.
📍 Quarrying
Production drilling in aggregate quarries for crushed stone and dimension stone.
Solution: With adjustable rotation speed and torque, the rig adapts to various rock types, ensuring high productivity and consistent hole quality for optimized blasting.
📍 Construction
Foundation drilling, rock anchoring, and site preparation for infrastructure projects.
Solution: The compact and maneuverable design allows operation in confined spaces, while the powerful engine ensures efficient drilling in reinforced concrete and bedrock.
📍 Water Well Drilling
Drilling water wells in unconsolidated formations and hard rock aquifers.
Solution: When equipped with appropriate DTH hammers and casing systems, the KG420S(H) provides reliable water well drilling with high penetration rates and 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 |
|---|---|---|---|---|---|---|---|
| KG420S(H)This model | Kaishan KG420S(H) | 30 m | 90-165 mm | DTH Hammer Drilling | 194 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 | |
| KG940A | KG940A | 30 m | 90–165 mm | DTH (Down-The-Hole) | 58 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 top-head drive
- On-board air compressor
- Feed beam and chain system
- Automatic rod handling system
- Tracked undercarriage
- Operator cabin
- Centralized lubrication system
Working Principle
The Kaishan KG420S(H) operates on the down-the-hole (DTH) hammer drilling principle. A pneumatic hammer is attached to the bottom of the drill string, directly impacting the rock with high-frequency blows while the drill bit rotates slowly. The rig's on-board air compressor supplies high-pressure air to the hammer, which also serves to flush cuttings out of the hole. The hydraulic top-head drive provides rotation and feed force, advancing the drill string into the rock. As the hole deepens, additional rods are added via the automatic rod handling system. The operator controls all functions from the cabin, adjusting rotation speed, feed rate, and air volume to match rock conditions. This method ensures straight, accurate holes with high penetration rates and minimal deviation, making it ideal for surface mining and quarrying where productivity and precision are critical.
Detailed Features
- ▸High-power diesel engine for demanding drilling conditions
- ▸Hydraulic top-head drive with infinite speed and torque adjustment
- ▸Maximum drilling depth of 30 meters and hole diameter up to 165 mm
- ▸Track-mounted chassis for excellent mobility and stability
- ▸Ergonomic cabin with climate control and low noise levels
- ▸Automatic rod handling for safe and efficient operation
- ▸Centralized lubrication for reduced maintenance time
- ▸Corrosion-resistant components for extended service life
Packaging & Shipping
The Kaishan KG420S(H) is shipped in a disassembled state for efficient transport. The main components are packed in heavy-duty steel frames and protected with anti-corrosion wrapping. The rig is typically loaded into 40-foot flat racks or open-top containers, with the cabin and smaller parts packed in wooden crates. Standard delivery time is 30-45 days after order confirmation, depending on destination. We ship from major Chinese ports such as Shanghai, Qingdao, or Tianjin. Customized packaging and shipping arrangements are available upon request.
After-Sales Service
Kaishan provides comprehensive after-sales service for the KG420S(H) drilling rig. All machines come with a 12-month warranty or 2000 operating hours, whichever comes first, covering major components. Our global service network offers 24-hour technical support via phone or email. We provide on-site installation, commissioning, and operator training to ensure optimal performance. Genuine spare parts are available from regional warehouses for fast delivery. Regular maintenance programs and extended warranty options are also offered to maximize uptime and reduce total cost of ownership.
Frequently Asked Questions
What hole diameters and depth can the KG420S(H) drill?+
The KG420S(H) drills hole diameters from 90 to 165 mm to a maximum drilling depth of 30 m. It uses DTH hammer drilling for these holes.
What engine powers the KG420S(H) drilling rig?+
The KG420S(H) is powered by a 194 kW diesel engine. This engine drives the rig for DTH hammer drilling in hard rock.
What air supply does the KG420S(H) need for DTH hammer drilling?+
The KG420S(H) uses DTH hammer drilling with a matching air supply for the 90 to 165 mm hole range. The rig is built for a DTH hammer and button bit setup at a working pressure suited to that range.
Where can the KG420S(H) be used?+
The KG420S(H) is used in open-pit mining, quarrying, construction and water well drilling. Its track-mounted undercarriage supports mobility on rough terrain at these sites.
What are the dimensions and weight of the KG420S(H)?+
The KG420S(H) measures 10,500 × 2,500 × 3,200 mm and weighs 15,000 kg. These figures cover the rig as specified for surface mining drilling.
How is the KG420S(H) packaged and shipped?+
The KG420S(H) is shipped disassembled, with main components in heavy-duty steel frames and anti-corrosion wrapping. It is typically loaded into 40-foot flat racks or open-top containers, with the cabin and smaller parts in wooden crates.
What warranty and after-sales service come with the KG420S(H)?+
The KG420S(H) comes with a 12-month warranty or 2000 operating hours, whichever comes first, covering major components. Kaishan provides 24-hour technical support and on-site installation, commissioning and operator training.
What maintenance features does the KG420S(H) have?+
The KG420S(H) has a centralized lubrication system for simplified maintenance. It also uses corrosion-resistant components for extended service life.
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.
KG420S(H)
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
