The KH103 / KH105 Integrated DTH Drilling Rig is a high-performance drilling solution designed for mining, quarrying, and rock blasting operations. Built with a strong focus on structural stability, fuel efficiency, and high torque performance, this series delivers reliable drilling capability under both soft and hard rock conditions.
One of their key highlights is the fully automatic rod loading and unloading system, enabling simple single-operator control and significantly reducing labor intensity while improving overall drilling efficiency and safety in the field.
The machine adopts a high-strength steel structural frame, ensuring excellent rigidity, safety, and long service life even in harsh mining environments. The power system is precisely matched between the diesel engine and screw air compressor, achieving optimized power distribution, lower fuel consumption, and larger air output for efficient DTH drilling.
A large-capacity bottom-mounted fuel tank improves refueling convenience while saving space. The spacious internal layout enhances heat dissipation and simplifies daily maintenance and servicing. The hydraulic and transmission systems are designed for stable performance and reduced downtime.
The KH103 / KH105 is equipped with a high-torque rotary head system and a premium feed motor, delivering strong and stable drilling force with minimal maintenance requirements. The operator cabin features a simple and logical control panel, allowing easy operation even for new users.
With a high-torque travel motor and switchable high/low speed driving mode, the rig demonstrates excellent off-road capability, making it suitable for both mountainous terrain and flat working sites.
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.
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| Model of drilling rig | KH103 dth drilling rig | KH105 dth drilling rig |
| Hole diameter | 90–115 mm | 90–140 mm |
| Drilling depth | 21m | 21 m |
| Engine | Yuchai National III 176 kW | Yuchai China III 191 kW |
| Compressor | Two-stage compression, 18 m³/min, 18 Bar | Two-stage compression, 18 m³/min, 20 Bar |
| Weight | 10 Tons | 10.5 Tons |
| Drill | 6+1 (3 m × 64 drill rods) Optional 6+1 (3 m × 76 drill rods) | 6+1 (3 m × 76 drill rods) Optional 6+1 (3 m × 64 drill rods) |
| Guide | High-strength aluminum beam | High-strength steel beam |
| Feed form | Hydraulic cylinder propulsion | Motor + chain |
| Feed length | 1100mm | 1100mm |
| Rotation motor | 2K Series | Eaton 6K Series |
| Pump | Military-grade pump | Military-grade pump |
| Valve | Qiangtian | Qiangtian |
| Dust | 14 Cores | Xuanhua 14 cores |
| Rotate torque | 2500 N·m | 3500 N·m (for hard rock) |
| Rotation speed | 0–100r/min | 0–120 r/min |
| Size | 8400×2300×2400mm | 8800 × 2300 × 2600 mm |
| Maximum thrust | 12KN | 12kN |
| Maximum lifting force | 18KN | 18kN |
| Max feed speed | 1m/s | 1m/s |
| Feed length | 3400mm | 3400mm |
| Tramming speed | 3 km/h (High Speed), 1.5 km/h (Low Speed) | 3 km/h (High Speed), 1.5 km/h (Low Speed) |
| Electric system | Imported Electrical Components, IP56 Waterproof and Dustproof | Imported Electrical Components, IP56 Waterproof and Dustproof |
| DTH | 6+1 | 6+1 |
| Impactor | 3-inch | 4-inch |
| Hammer | 90 Drill Bit | 115 Drill Bit |
| Fitting | One Set of Toolbox | One Set of Toolbox |
The KH103 DTH Drilling Rig is suitable for a wide range of drilling environments:
· Open-pit mining drilling operations
· Quarry blasting hole drilling
· Road construction and slope stabilization
· Foundation engineering drilling
· Rock blasting for infrastructure projects
· Medium-hard to hard rock formations
· Water well auxiliary drilling (shallow depth)
It is especially suitable for projects requiring 90–115mm hole diameter drilling with high stability and efficiency.
1. Integrated Energy-Saving Design
The KH103 / KH105 adopts an integrated drilling system with a built-in air compressor directly matched to drilling demand, significantly reducing energy loss compared to split-type equipment.
By eliminating long-distance air transfer and pressure loss, it achieves approximately 25% energy savings, making it a more efficient and cost-effective solution for mining operations.
2. One-Stop Integrated System, Lower Labor Requirement
The drilling rig and air compressor are fully integrated into one machine, solving traditional mining problems such as compressor transportation, remote management, and compressed air loss.
This design significantly reduces manpower requirements and simplifies on-site operation and equipment coordination.
3. High-Efficiency Hydraulic Dust Removal System
Equipped with a high-performance hydraulic dust suppression system, the machine effectively controls dust emissions during drilling.
It fully meets modern mining environmental protection standards and supports cleaner, safer, and greener mining operations.
4. Optimized Power Matching for Lower Fuel Consumption
The diesel engine and screw air compressor are precisely matched for optimal power distribution, ensuring stable air output while minimizing fuel consumption.
This intelligent power system improves drilling efficiency while reducing overall operating cost.
5. Heavy-Duty Structure with Easy Maintenance Design
Built with a high-strength steel frame, the machine ensures excellent stability and long service life under harsh mining conditions.
A spacious internal layout improves heat dissipation and allows easy access for maintenance, while the high-torque travel system provides strong off-road capability for both mountainous and flat terrain operations.
Q1: What is the difference between KH103 and KH105?
KH103 is designed for 90–115mm hole diameter drilling, while KH105 supports a wider range of 90–140mm, with higher torque (3500 N·m) for harder rock formations.
Q2: What is the drilling depth of these models?
Both models have a maximum drilling depth of approximately 21 meters, depending on geological conditions and drilling configuration.
Q3: What engines are used in KH103 and KH105?
· KH103: 176KW Yuchai National III engine (Yuchai)
· KH105: 191KW Yuchai China III engine (Yuchai)
Other engine brands can be customized upon request.
Q4: What compressor system is used?
Both models are equipped with a two-stage 18m³/min air compressor:
· KH103: 18 Bar
· KH105: 20 Bar
Ensuring stable airflow for efficient DTH hammer drilling.
Q5: Can the machine operate in mountainous areas?
Yes. The high-torque travel system and dual-speed walking mode make it highly suitable for mountainous terrain, uneven ground, and mining roads.
Q6: What is the difference in structure between KH103 and KH105?
KH103 uses a high-strength aluminum guide beam with hydraulic propulsion, while KH105 uses a steel beam with motor + chain feed system for higher rigidity and stronger drilling force.
Q7: Is maintenance easy?
Yes. Both models feature a spacious internal layout, allowing easy access for inspection, maintenance, and replacement of key components.
Q8: Can drill rods and hammer systems be customized?
Yes. Different configurations of drill rods (64 or 76 rods) and impactor sizes (3-inch / 4-inch) are available depending on project requirements.
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