The KC720 split type DTH drilling rig is a lightweight and economical drilling solution developed as an upgraded version of the KC712. It is designed for open-pit mining, quarrying, and rock blasting applications where cost efficiency, flexibility, and stable performance are key requirements.
Compared with entry-level models, the KC720 features an upgraded hydraulic system with increased flow and higher rotation speed, providing smoother operation and improved drilling efficiency. Enlarged luffing and boom cylinders enhance operational capability, allowing the machine to handle more complex working positions with greater stability.
The rig is equipped with a high-strength feed beam and high-torque rotary motor, ensuring reliable performance across different rock formations. Despite its improved performance, the KC720 maintains a lightweight and cost-effective split structure, making it easier to transport, deploy, and maintain.
As a split type DTH drilling rig without an integrated air compressor, it allows users to flexibly match external air compressors according to project requirements, offering both economic advantage and operational adaptability.
Powered by a Yuchai YC4DK100 diesel engine (Yuchai), the KC720 delivers stable output with efficient fuel consumption, making it an ideal balance between performance and cost.
Quzhou Mazellion Heavy Industry Technology Co., Ltd. is a professional manufacturer of diesel screw air compressors and mining drilling equipment, serving global mining, quarry, water well drilling, and construction projects. We provide factory-direct supply, stable quality, and full OEM customization to help customers win local markets with better cost performance and reliability.
To start cooperation: send your inquiry → get a tailored technical solution & quotation → confirm order → production & testing → fast shipment → long-term spare parts & technical support. We respond quickly and support you throughout the whole project.
| Model of drilling rig | KC720 dth drilling rig | KC750 dth drilling rig |
| Supporting power | Yuchai YC4DK100 | Yuchai YC4DK120 |
| Rated power | 73.5kW | 88kW |
| Hole range | Φ160~400mm | Φ200~500mm |
| Drilling depth | 30~10m | 30~10m |
| Drill pipe | Φ89mm/Φ102mm × 3000mm | Φ89mm/Φ102mm × 3000mm |
| DTH hammer | 4"~8" | 6"~12" |
| Working pressure | 1.0~2.4MPa | 1.0~2.5MPa |
| Air consumption | 6~28m³/min | 10~55m³/min |
| Rotary torque(Max.) | 6000N.m | 13000N.m |
| Rotary speed | 0~100RPM | 0~180RPM |
| Feed stroke | 3600mm | 4000mm |
| Feed extension | 900mm | 900mm |
| Lifting force | 35kn | 35kn |
| Method of feed | Motor | Motor |
| Swing angle of skid | L45°, R45°, Total 90° | L91°, R12°, Total 103° |
| Pitch angle of skid | Dn175°, Up69°, Total 244° | Dn172°, Up50°, Total 222° |
| Pitch angle of boom | Dn19°, Up58°, Total 77° | Dn19°, Up61°, Total 80° |
| Swing angle of boom | L60°, R55°, Total 115° | L60°, R55°, Total 115° |
| Walking speed | 0~3km/h | 0~3km/h |
| Gradeability max. | 35° | 35° |
| Ground clearance | 500mm | 500mm |
| Weight | 6190kg | 6820kg |
| Outer dimensions(L×W×H) | 7300×2300×2500mm | 7300×2300×2700mm |
| Fuel tank capacity | 100L | 100L |
| Colleting Method | No | No |
1. Medium Open-Pit Mining Projects
Suitable for mining operations requiring 160–400mm hole drilling, such as coal, limestone, and metal ore extraction.
2. Quarry Blasting Operations
Used for large-scale quarry blasting, providing stable drilling performance and improved rock fragmentation efficiency.
3. Infrastructure Construction Projects
Applicable for highway, railway, and foundation engineering projects requiring medium-to-large diameter drilling.
4. Flexible Cost-Oriented Drilling Projects
Ideal for contractors seeking a balance between performance and investment cost, with adjustable external air compressor configuration.
5. Remote and Heavy-Duty Field Operations
Suitable for complex terrain and remote job sites where mobility, reliability, and easy maintenance are required.
1. Lightweight & Cost-Efficient Design
The split structure reduces overall machine weight and investment cost, making the KC720 a highly economical choice for mining contractors.
2. Upgraded Hydraulic Performance
Enhanced hydraulic system with higher flow and rotation speed improves operational smoothness and drilling efficiency compared to entry-level models.
3. Strong Adaptability to Complex Working Conditions
Enlarged luffing and boom cylinders improve flexibility, allowing the machine to operate efficiently in extreme working positions and uneven terrain.
4. High Torque Stable Drilling System
Equipped with a powerful rotary motor and reinforced feed beam, ensuring stable drilling performance across different rock hardness levels.
5. Flexible External Air System Matching
As a split type rig, it supports different external air compressors, allowing users to optimize configuration based on drilling depth and project scale.
Q1: Does KC720 include an integrated air compressor?
No. The KC720 is a split type DTH drilling rig and requires an external air compressor system. This allows users to flexibly match different compressor sizes based on drilling depth, hole diameter, and rock conditions.
Q2: What is the shipping method for KC720?
The KC720 is usually shipped by container in CKD or semi-assembled condition. We provide professional loading reinforcement, anti-rust protection, and full export documentation to ensure smooth customs clearance and safe delivery.
Q3: Can the engine brand be customized?
Yes. The standard configuration uses a Yuchai YC4DK100 diesel engine (Yuchai). Engine brands such as Cummins, Weichai, or other international brands can be customized according to customer requirements and market needs.
Q4: What after-sales service do you provide?
We provide technical support, operation guidance, and spare parts supply. Remote assistance is available for troubleshooting, and long-term spare parts support ensures stable machine operation and reduced downtime.
Q5: What warranty do you offer for KC720?
We offer a 12-month warranty for main components. During the warranty period, any parts damaged due to manufacturing defects will be replaced free of charge. After-sales support continues for long-term operation needs.
Q6: Which payment term can you accept?
30% T/T in advanced, 70% T/T against the B/L copy.
Q7:Can the machine be customized?
Yes. We offer customization options including:Engine brands, Hydraulic components, Electrical systems. OEM and ODM services are available for distributors and project contractors.
Q8:What About The Transportation?
Usually we take seaway, cause it's more convenient and cheaper.
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