📦 Surface Mining Drilling Rigs
Kaishan KT7H Integrated Surface DTH Drilling Rig
Model: KT7H
Kaishan KT7H is an integrated (self-contained) surface DTH drilling rig. Official export model KD50E. Source: Zhejiang Kaishan Heavy Industry product centre.
Technical Specifications
| Model | Kaishan KT7H |
| Drilling Depth | 30 m |
| Hole Diameter | 90-165 mm |
| Drilling Method | DTH (Down-The-Hole) Drilling |
| Engine Power | 194 kW |
| Weight | 15,000 kg |
| Dimension (L×W×H) | 10,000 × 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)
10,000 × 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 demanding drilling conditions
Maximum drilling depth of 30 meters and hole diameter 90-165 mm
DTH hammer system for high penetration rates in hard rock
Heavy-duty crawler undercarriage for stable tramming on rough terrain
Ergonomic operator cabin with joystick controls and digital display
Integrated dust suppression system for environmental compliance
Applications
📍 Open-Pit Mining
Blast hole drilling for ore extraction in large surface mines.
Solution: KT7H's high penetration rate and depth capacity ensure efficient bench drilling, reducing cycle times and increasing productivity.
📍 Quarrying
Drilling blast holes for aggregate production in stone quarries.
Solution: The rig's powerful DTH hammer and precise controls deliver accurate hole placement, optimizing fragmentation and reducing secondary blasting.
📍 Construction
Foundation drilling and site preparation for infrastructure projects.
Solution: With its compact footprint and maneuverability, the KT7H can access tight spaces and drill accurately for foundations and anchoring.
📍 Road Building
Drilling holes for rock blasting in road and highway construction.
Solution: The KT7H's reliable performance and easy operation make it ideal for repetitive drilling tasks along road alignments, ensuring project timelines are met.
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 |
|---|---|---|---|---|---|---|---|
| KT7HThis model | Kaishan KT7H | 30 m | 90-165 mm | DTH (Down-The-Hole) 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 system
- Rotary head
- Feed beam
- Crawler undercarriage
- Operator cabin
- Dust suppression system
- Control panel
Working Principle
The Kaishan KT7H operates on the down-the-hole (DTH) drilling principle, where a pneumatic hammer is positioned directly behind the drill bit. High-pressure air is delivered through the drill string to the hammer, driving the piston to strike the bit with high-frequency impacts. Simultaneously, the rotary head turns the drill string, indexing the bit for efficient rock breakage. The air also serves to flush cuttings out of the hole, keeping it clean for continuous drilling. The rig's hydraulic system powers the rotary head, feed system, and crawler tracks, allowing precise control of feed force and rotation speed. The operator monitors drilling parameters via the control panel to optimize performance based on rock conditions. This method ensures fast penetration and straight holes, making the KT7H highly effective for surface mining and quarrying applications.
Detailed Features
- ▸High-performance DTH hammer for fast drilling in hard rock
- ▸Powerful diesel engine with low fuel consumption
- ▸Heavy-duty crawler chassis for stability on rough terrain
- ▸Ergonomic cabin with joystick controls and digital display
- ▸Centralized lubrication for easy maintenance
- ▸Dust suppression system for environmental compliance
- ▸Safety features including emergency stops and ROPS/FOPS
- ▸Optional air compressor and onboard generator available
Packaging & Shipping
The Kaishan KT7H is shipped in a disassembled state for efficient transport, with major components securely packed in containers. Standard export packaging includes rust-proof coating, wooden crates, and waterproof covers. The rig typically requires one 40-foot HQ container. Delivery time is approximately 30-45 days after order confirmation, depending on destination and customization. Shipping ports include Shanghai, Qingdao, or as per customer request. All necessary documentation for customs clearance is provided.
After-Sales Service
Kaishan offers comprehensive after-sales service for the KT7H, including a 12-month warranty on major components (excluding wear parts). Our global service network provides 24-hour technical support via phone or email. We offer on-site installation and commissioning, as well as operator training at our factory or on location. A full range of genuine spare parts is available with fast delivery. Regular maintenance reminders and service packages are available to ensure optimal performance and longevity.
Frequently Asked Questions
What hole diameter and drilling depth does the Kaishan KT7H support?+
The Kaishan KT7H drills holes from 90 to 165 mm in diameter to a maximum drilling depth of 30 m. It uses the DTH (Down-The-Hole) drilling method. This size range suits blast hole drilling in open-pit mines and quarries.
What engine powers the Kaishan KT7H?+
The Kaishan KT7H is powered by a 194 kW diesel engine. The engine is matched to the DTH hammer system for penetration in hard rock. It is described as a powerful diesel engine with low fuel consumption.
What equipment and air supply does the KT7H need?+
The Kaishan KT7H uses a DTH hammer system, and an air compressor is available as an optional item. An onboard generator is also available as an option. The rig itself is a DTH drilling rig, so the DTH hammer is the matching drilling tool.
Where can the Kaishan KT7H be used?+
The Kaishan KT7H is built for open-pit mining, quarrying, construction and road building. Its heavy-duty crawler undercarriage provides stable tramming on rough terrain. The rig weighs 15,000 kg and measures 10,000 × 2,500 × 3,200 mm.
What maintenance features does the KT7H have?+
The Kaishan KT7H has centralized lubrication for easy maintenance. It also has an integrated dust suppression system for environmental compliance. Safety features include emergency stops and ROPS/FOPS.
How is the Kaishan KT7H packaged and shipped?+
The Kaishan KT7H is shipped in a disassembled state, with major components securely packed in containers. Standard export packaging includes rust-proof coating, wooden crates and waterproof covers, and the rig typically requires one 40-foot HQ container. Delivery time is approximately 30-45 days after order confirmation, depending on destination and customization.
What after-sales service is offered with the KT7H?+
Kaishan offers a 12-month warranty on major components of the KT7H, excluding wear parts. The global service network provides 24-hour technical support via phone or email. On-site installation and commissioning and operator training are also offered.
Related Insights
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Where This Machine Is Used
Is This Rig Right for My Project?
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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.
KT7H
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
