The KH845 Integrated DTH Drilling Rig is designed for large-diameter blasting operations in mining, quarrying, and rock engineering projects. It delivers stable drilling performance, strong torque output, and reliable operation in medium to hard rock conditions.
As an integrated drilling system, the KH845 combines the drilling rig and screw air compressor into one unit. This design eliminates air transmission loss, reducesequipment wear, and significantly lowers maintenance consumption, while also solving the traditional problems of compressor transportation, remote management, and extra manpower requirements.
Powered by a 191KW Yuchai diesel engine (Yuchai), it ensures stable power output and efficient drilling performance with optimized fuel consumption.
The machine features a high-strength steel structure, large-capacity fuel tank, and spacious internal layout for better cooling and easier maintenance. With a high-torque rotary system and dual-speed travel, it performs reliably in both mountainous and flat working environments.
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 | KH845 dth drilling rig |
| Hole diameter | 115–152mm |
| Drilling depth | 30m |
| Engine | Yuchai National II Diesel Engine, 191KW |
| Compressor | Two-stage Compression, Baosi 18m³, 18Bar |
| Weight | 10 Tons |
| Guide | High-strength Steel Beam |
| Feed form | Motor + Chain Propulsion |
| Feed motor | Eaton |
| Feed travel | 4300mm |
| Pump | Military-grade Pump |
| Valve | Qiangtian |
| Dust | Xuanhua 14-Core |
| Rotate torque | Jinke 590 / 3800N.m |
| Tramming speed | 3Km/h (Fast), 1.5Km/h (Slow) |
| Electric system | Imported Electrical Components, IP56 Waterproof and Dustproof |
| Feed length | 6000mm |
| Feed compensate | 900mm |
| Max pulling force | 35KN |
| L×W×H | 8800×2300×2600mm |
| Fuel volume | 400L |
| Climbing capacity | 30° |
| Drilling hardness | f=6–20 |
1. Large Open-Pit Mining Operations
Suitable for large-scale mining projects requiring 115–152mm blast holes, including metal ores, coal, and limestone mining.
2. Quarry Blasting Projects
Widely used in quarry stone extraction and aggregate production, providing stable drilling performance for high-volume blasting operations.
3. Hard Rock Engineering Projects
Designed for drilling in rock formations with hardness f=6–20, suitable for demanding geological conditions and deep blasting work.
4. Infrastructure Construction
Applicable for highways, railways, tunnels, and foundation engineering projects requiring large-diameter drilling capacity up to 30m depth.
5. Mountainous Terrain Operations
High climbing ability (up to 30°) and dual-speed travel system make it suitable for rugged terrain and remote mining sites.
1. Energy-Saving Integrated System
The built-in compressor directly matches drilling demand, reducing energy loss and achieving up to 25% energy savings compared with split-type systems.
2. Reduced Equipment Wear & Maintenance Cost
Integrated air and drilling systems eliminate long-distance air transfer, reducing pressure loss, component wear, and overall maintenance consumption.
3. Lower Labor Requirement & Easier Site Management
By combining drilling and air supply into one machine, it removes the need for separate compressor transportation and management, reducing manpower and improving field efficiency.
4. Stable Power & Fuel Efficiency
The engine and screw air system are optimized for balanced power distribution, ensuring strong air output while reducing fuel consumption and operating cost.
5. Heavy-Duty Structure with Easy Operation
High-strength steel frame ensures durability, while the spacious design improves heat dissipation and simplifies maintenance. Dual-speed travel system enhances mobility across complex terrain.
Q1: What is the shipping method for KH845?
The KH845 can be shipped in container (CKD/SKD disassembly or semi-assembled form) or flat rack for fully assembled machine, depending on customer requirements. We provide full loading reinforcement, anti-rust protection, and complete export documents for smooth customs clearance.
Q2: What is the delivery time?
The standard production lead time is approximately 20–35 working days, depending on configuration and order quantity. Urgent orders can be arranged based on production schedule.
Q3: Can the engine brand be customized?
Yes. The standard configuration uses a 191KW Yuchai National II diesel engine (Yuchai). Engine brand customization is available upon request, such as Cummins, Weichai, or other internationally recognized brands depending on market requirements.
Q4: Do you provide after-sales service and technical support?
Yes. We provide full technical support, including installation guidance, operation training, and troubleshooting assistance. Spare parts supply is available to ensure long-term stable operation and reduced downtime.
Q5: What warranty do you offer for KH845?
We provide 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 and spare parts supply are available for long-term use.
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