KT 7H Integrated Down The Hole Drill Rig For Open Use

Jining Dongtai Lite Engineering Machinery Co., Ltd. is one of the leading manufacturers and suppliers of kt 7h integrated down the hole drill rig for open use in China. With abundant experience, we warmly welcome you to buy customized kt 7h integrated down the hole drill rig for open use made in China here from our factory. Good service and quality products are available.

The KT 7H Integrated Down The Hole Drill Rig For Open Use stands at the absolute pinnacle of our integrated drilling lineup: the most powerful, most fully equipped, and most capable self-contained DTH drill rig we manufacture. Combining the KT 7 series' ultra-high-capacity dual-engine platform with a fully enclosed ROPS/FOPS certified operator cabin, the most advanced intelligent drilling control system in the series, and the highest compressor output available in any integrated machine, the KT 7H is the definitive answer for operations that demand large-rig performance, world-class operator protection, and complete operational independence in a single crawler-mounted machine.

Where the KT 7C delivers the same drilling power in an open-station configuration for cost-sensitive applications, the KT 7H adds the enclosed climate-controlled cabin, enhanced dual-axis anti-deviation control, an upgraded satellite-primary remote monitoring system, and an extended intelligent drilling parameter library that allows the machine to be pre-programmed for complex multi-layer geological profiles before the shift begins. The result is a machine that not only drills harder and deeper than any other integrated rig in our range, but does so with the highest level of operator welfare, data capture, and autonomous drilling intelligence available in the integrated DTH category.

For tier-one mining companies, major EPC contractors, and drilling fleet operators who accept no compromise between performance, safety, and operational intelligence, the KT 7H represents the complete package: the most capable integrated DTH drill rig available for open-pit and quarry applications worldwide.

Maximum-Output Dual-Engine Platform

• Dedicated high-output compressor engine (178 kW) driving the largest integrated compressor unit in the series, delivering 30 to 50 m3/min of free air delivery at working pressures up to 40 bar - sufficient to power 7-inch to 9-inch DTH hammers at full rated performance with no external air supply equipment.
• Independent primary drilling engine (132 kW) driving all hydraulic systems exclusively, with no power shared with the compressor at any point in the operating cycle, ensuring full compressor output is maintained during simultaneous tramming, mast positioning, and rod handling operations.
• Total installed power of 310 kW, providing the combined output required to sustain large-diameter DTH drilling at full production rates across extended multi-shift operations in the most demanding geological conditions.
• Independent engine management with cross-monitoring: each engine's health parameters are monitored by the central control system, with automatic alerts and protective shutdown sequences if either engine approaches operating limits, preventing damage during unattended or high-load operation.
   

Premium Enclosed Operator Cabin

• ROPS/FOPS certified enclosed cabin with full structural certification to international mining and construction equipment safety standards, providing roll-over and falling-object protection across all operating conditions.
• Dual-zone air conditioning and heating system with independent temperature control for the upper and lower cabin zones, maintaining optimal operator comfort across the full range of ambient conditions from desert heat to cold-climate winter operations.
• Enhanced acoustic insulation package reducing in-cabin noise levels to below 75 dB(A), the lowest in the integrated series, eliminating mandatory hearing protection requirements inside the cab and enabling clear voice communication between the operator and ground crew.
• Positive-pressure multi-stage filtered air supply with a HEPA-grade final filter stage, providing the highest level of in-cabin dust protection in the series and meeting the most stringent occupational exposure limits for respirable crystalline silica (RCS) in all major regulatory frameworks.
• Wide-format touchscreen instrument panel integrated into the cabin console, displaying all drilling, compressor, and engine parameters on a single high-resolution screen with configurable dashboard layouts, replacing the conventional gauge-and-lever interface with a modern human-machine interface (HMI) designed for intuitive single-operator use.
   

Advanced Intelligent Drilling System

• Extended multi-layer programmable drilling control: supports pre-programming of up to 10 distinct geological layer profiles per hole, each with independent feed force, rotation speed, penetration rate, and compressor pressure targets, enabling fully automated parameter management across complex multi-formation hole profiles without operator intervention.
• Dual-axis anti-deviation system: monitors drill string lateral load and mast inclination in two independent axes simultaneously, providing earlier deviation detection and more precise corrective response than single-axis systems, maintaining hole straightness to tighter tolerances across the full 48 m depth range.
• Automatic anti-jamming system with adaptive torque threshold learning: the system continuously refines its jamming detection threshold based on the actual torque signature of the current formation, reducing false-positive interventions in variable rock and improving response speed in genuinely jamming conditions.
• Comprehensive hole-by-hole data logging: records 12 drilling and machine parameters at 0.1 m depth intervals for every hole, generating a complete formation log alongside the production record, with data stored on an on-board SSD and automatically synchronized to the cloud dashboard via the remote monitoring module.

Satellite-Primary Fleet Management

• Satellite-primary remote monitoring module (standard): uses satellite as the primary communication link with cellular as automatic fallback, ensuring continuous data transmission regardless of site location, eliminating the connectivity gaps that affect cellular-only systems on remote mining sites.
• Cloud-based project dashboard: provides the project management team with real-time visibility of hole count, daily meterage, penetration rate trends, fuel consumption, machine health status, and GPS position for every KT 7H in the fleet, accessible from any device via web browser or mobile app.
• Predictive maintenance alerts: the remote monitoring system analyzes engine and compressor parameter trends to identify developing faults before they cause unplanned downtime, generating maintenance work orders automatically when parameters approach service thresholds.

Large-Rig Drilling Performance

• Drill hole diameter range: 165 mm to 229 mm, covering the large blast-hole specifications used in high-bench open-pit mining and high-production quarry operations.
• Maximum drilling depth: up to 48 m per setup, suitable for the deepest bench configurations in large-scale open-pit blasting programs.
• Ultra-high-torque rotary head: 5,000 N.m maximum output torque for large-diameter drill string management in the hardest rock formations at depth.
• High-capacity hydraulic feed system: 65 kN maximum feed force and 72 kN pull-back for precise bit-to-rock contact pressure control across the full depth range in rock up to 400 MPa UCS.
• Heavy-duty reinforced crawler undercarriage with extra-wide gauge steel tracks, hydraulic track tensioning, and automatic ground pressure equalization, engineered for the KT 7H's operating weight and the stability demands of large-diameter drilling on steep bench faces.

• Tier-one large-scale open-pit mining: high-bench blast-hole drilling at major iron ore, copper, gold, and coal operations where the highest standards of operator welfare, drilling intelligence, and fleet management are required alongside maximum integrated drilling capacity.
• High-production quarrying with strict HSE compliance: large-diameter production drilling at operations subject to the most stringent national mining safety codes, where enclosed ROPS/FOPS cabin certification, RCS dust exposure compliance, and noise level limits are all mandatory.
• Extreme-climate large-output sites: operations in desert heat, tropical humidity, or cold-climate winter conditions where dual-zone climate control and HEPA-grade cabin filtration are essential for sustained operator performance across long shifts.
• Complex multi-geology drilling programs: sites where the geological profile varies significantly across the array footprint or within individual holes, requiring the KT 7H's 10-layer programmable drilling control to maintain optimal performance and tooling protection across all formation transitions.
• Remote mega-project fleet deployments: large multi-rig drilling campaigns in locations without reliable cellular coverage, where satellite-primary remote monitoring and predictive maintenance alerts are essential for fleet productivity management and unplanned downtime prevention.
• Pre-split and precision wall control drilling: large-diameter angle drilling for final pit wall control in major open-pit mines, where the dual-axis anti-deviation system's tighter hole straightness tolerances directly improve blast fragmentation uniformity and wall stability.

For technical consultations, project-specific quotations, fleet planning, or spare parts inquiries, please contact our international sales engineering team. To receive the most accurate and timely proposal, please provide the following information:

• Drilling depth and hole diameter
• Rock condition
• Project type (water well / mining)
• Destination port

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