KT 11 Integrated Down The Hole Drill Rig For Open Use
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KT 11 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 11 integrated down the hole drill rig for open use in China. With abundant experience, we warmly welcome you to buy customized kt 11 integrated down the hole drill rig for open use made in China here from our factory. Good service and quality products are available.
Product Overview
The KT 11 Integrated Down The Hole Drill Rig For Open Use marks the absolute frontier of the integrated DTH drilling concept: a machine that transcends the KT9 series ceiling and enters a performance tier previously reserved exclusively for the largest conventional standalone rigs. Engineered for the most extreme large-diameter, ultra-deep open-pit drilling applications in major mining operations and high-production quarrying, the KT 11 combines a quad-engine power architecture, the highest compressor output in our entire integrated lineup, and a reinforced ultra-heavy-duty crawler platform to deliver hole diameters up to 311 mm and drilling depths up to 60 m - all within a single, fully self-contained machine that requires no external compressor infrastructure of any kind.
Where the KT9 series introduced the tri-engine concept to eliminate power competition between the drilling system, the compressor, and the crawler drive, the KT 11 advances this architecture to four independent engines, adding a dedicated fourth engine for the rod handling and auxiliary systems. This ensures that every major operational load group on the machine - drilling hydraulics, compressor, crawler drive, and rod carousel - operates at its full rated output simultaneously and independently, with no power competition at any point in the drilling cycle. The result is a machine that sustains maximum production output continuously, without the productivity losses that affect lower-specification integrated designs during rod changes, tramming, or simultaneous multi-system operations.
For the world's largest mining operations and most demanding drilling contractors, the KT 11 is the definitive statement of what integrated DTH drilling can achieve: the performance of a large standalone rig, the operational independence of a single self-contained machine, and the most advanced intelligent drilling system available in the integrated category
Key Features & Technical Advantages
Quad-Engine Architecture: Four Independent Load Groups
- Primary engine (178 kW) drives all drilling hydraulics exclusively: rotary head, feed cylinder, and mast positioning. No power shared with any other system at any point in the operating cycle.
- Secondary engine (250 kW) drives the ultra-high-pressure compressor exclusively, delivering 55 to 80 m3/min of free air delivery at working pressures up to 50 bar - the highest air output and pressure specification in the entire integrated series.
- Tertiary engine (132 kW) drives the crawler undercarriage and tramming system exclusively, maintaining full tramming speed during simultaneous drilling and compressor operation with no power drawn from either of the other two systems.
- Quaternary engine (93 kW) drives the rod carousel, rod handling system, and all auxiliary hydraulics exclusively, enabling fully automated rod addition and extraction cycles to proceed at full speed simultaneously with drilling, tramming, and compressor operation.
- Total installed power of 653 kW, the highest in the integrated series, providing the combined output required to sustain ultra-large-diameter DTH drilling at maximum production rates across extended multi-shift operations in the hardest geological conditions on earth.
- Fully simultaneous four-system operation: the KT 11 can drill at full feed force and rotation, maintain full compressor output, tram at full speed, and execute automated rod handling cycles all at the same time, with no power competition between any of the four systems. This capability is unique in the integrated DTH category and directly translates into the highest holes-per-shift productivity available in any self-contained machine.
Ultra-High-Output Compressor System
- Dedicated 250 kW compressor engine driving the largest integrated compressor unit ever fitted to a self-contained DTH rig, delivering 55 to 80 m3/min of free air delivery at working pressures up to 50 bar.
- 50 bar maximum working pressure: the highest compressor pressure in the integrated series, enabling compatibility with the most advanced ultra-high-pressure DTH hammer technology available, delivering maximum penetration rates in the hardest rock formations including quartzite and iron-rich formations above 400 MPa UCS.
- 9-inch to 12-inch DTH hammer compatibility: the compressor's air volume and pressure specification covers the largest DTH hammer sizes used in production open-pit drilling worldwide, including hammer sizes that were previously only achievable with dedicated large standalone compressor units.
Maximum-Class Drilling System
- Drill hole diameter range: 254 mm to 311 mm, the largest hole diameter range in the integrated series, covering the largest blast-hole specifications used in the world's major open-pit mining operations.
- Maximum drilling depth: up to 60 m per setup, the deepest single-pass capability in the integrated series, suitable for the highest bench configurations in large-scale open-pit blasting programs.
- Maximum-class rotary head with output torque of 9,000 N.m, the highest in the integrated series, providing the rotational force required to drive the largest-diameter drill strings through the hardest rock formations at maximum depth.
- Ultra-high-capacity hydraulic feed system with maximum feed force of 120 kN and pull-back of 135 kN, delivering the thrust required for 10-inch to 12-inch DTH hammer operation in very hard rock while maintaining precise bit-to-rock contact pressure control.
- Automated rod carousel system (powered by the dedicated quaternary engine): holds multiple drill rods and automatically adds or extracts rods during deep-hole drilling without manual handling, maximizing productive drilling time and improving crew safety during rod operations.
- Extended heavy-duty mast with maximum stroke length for single-pass drilling to 60 m depth, minimizing rod-addition cycles on deep-bench programs.
- Mast angle adjustment supports vertical and inclined drilling up to 30 degrees from vertical for pre-split blasting, contour drilling, and angled production holes.
Premium Enclosed Operator Cabin & Full Intelligent Control Suite
- ROPS/FOPS certified enclosed cabin with dual-zone air conditioning, heating, HEPA-grade dust filtration, and acoustic insulation below 75 dB(A), providing the highest level of operator protection and comfort in the integrated series.
- Wide-format touchscreen HMI displaying all four engine parameters, compressor status, and drilling system data on a single configurable dashboard, with the full programmable drilling control interface accessible from the ergonomic suspension operator seat.
- Extended multi-layer programmable drilling control: up to 12 geological layer profiles per hole, with independent parameter sets for each layer and automatic transition between profiles as the drill progresses through the formation.
- Dual-axis anti-deviation system with adaptive learning: monitors drill string lateral load in two perpendicular planes and continuously refines its deviation detection model based on the actual drill string behavior in the current formation.
- Satellite-primary remote monitoring with predictive maintenance: continuous data transmission via satellite, real-time fleet dashboard, and automated predictive maintenance alerts for all four engines and the compressor system.
- Comprehensive 15-parameter data logging at 0.1 m depth intervals: the most detailed drilling record in the integrated series, covering all four engine loads, compressor delivery, and all drilling parameters for every hole.
Technical Specifications
Typical Applications
- World-class open-pit mining operations: ultra-large-diameter blast-hole drilling at the world's largest iron ore, copper, gold, and coal mines requiring hole diameters of 254 to 311 mm and depths up to 60 m in a single integrated machine.
- Maximum-scale quarrying: large-diameter production drilling in the hardest granite, basalt, and quartzite formations where 9-inch to 12-inch DTH hammer performance is required without a separate compressor unit.
- Ultra-high-pressure DTH applications: operations using the most advanced ultra-high-pressure DTH hammer technology (above 45 bar) to maximize penetration rates in the hardest rock formations up to 450 MPa UCS.
- Automated high-cycle drilling programs: large-scale drilling campaigns where the quad-engine architecture's simultaneous full-output capability and automated rod carousel system maximize holes-per-shift productivity without manual rod handling.
- Tier-one operations with maximum HSE standards: sites where the highest levels of enclosed operator protection, HEPA-grade dust filtration, noise attenuation, and intelligent drilling control are all mandated alongside maximum drilling capacity.
- Pre-split and precision wall control at maximum scale: ultra-large-diameter angle drilling for final pit wall control in the world's largest open-pit mines, where the KT 11's hole diameter and depth capability enables efficient pre-split patterns on the highest benches.
Frequently Asked Questions
Q: What is the quad-engine architecture, and what does the fourth engine add over the KT9 series tri-engine design?
A: The KT9 series uses three independent engines: one for drilling hydraulics, one for the compressor, and one for the crawler drive. The KT 11 adds a fourth dedicated engine for the rod carousel and auxiliary systems. In tri-engine designs, rod addition and extraction cycles draw hydraulic power from the primary drilling engine, which means that during rod changes, the drilling system's hydraulic capacity is partially diverted to rod handling. The KT 11's quaternary engine eliminates this: rod handling operations draw no power from the drilling engine, the compressor engine, or the crawler engine. The result is that automated rod addition and extraction cycles can proceed at full speed simultaneously with drilling, tramming, and compressor operation, with no power competition between any of the four systems. On deep-hole programs where rod changes are frequent, this simultaneous full-output capability directly increases productive drilling time per shift.
Q: How does the KT 11 compare to the KT9D, and when is the step up justified?
A: The KT9D is the enclosed-cabin flagship of the KT9 series, drilling 203 to 254 mm holes to 55 m depth with 473 kW of tri-engine power and up to 45 bar compressor pressure. The KT 11 steps beyond that in every dimension: hole diameters from 254 to 311 mm, depths to 60 m, 653 kW of quad-engine power, compressor pressure up to 50 bar, and free air delivery of 55 to 80 m3/min for 9-inch to 12-inch DTH hammer operation. The KT 11 also adds the automated rod carousel (powered by the dedicated quaternary engine), 12-layer programmable control (vs. 10), dual-axis anti-deviation with adaptive learning, and 15-parameter data logging (vs. 12). The step up is justified when your project requires hole diameters above 254 mm, depths beyond 55 m, ultra-high-pressure hammer operation above 45 bar, or when the automated rod carousel's productivity advantage is required on high-cycle deep-hole programs.
Q: What DTH hammer sizes are compatible with the KT 11?
A: The KT 11's compressor delivers 55 to 80 m3/min of free air delivery at working pressures up to 50 bar, which is sufficient to drive 8-inch to 12-inch DTH hammers at full rated performance. Compatible hole diameters range from 254 mm to 311 mm depending on the hammer and bit combination selected. For ultra-high-pressure hammer applications above 45 bar, the KT 11 is the only model in the integrated series with the compressor capacity to sustain full hammer performance at this scale. Our technical team can recommend the optimal hammer and bit specification for your target hole diameter and rock hardness.
Q: How does the automated rod carousel work, and what productivity benefit does it provide?
A: The automated rod carousel is a magazine-style rod storage and handling system mounted on the machine, powered by the dedicated quaternary engine. It holds a pre-loaded set of drill rods and automatically presents the next rod for connection when the drill reaches the end of its mast stroke, and automatically retrieves rods during extraction, without requiring the operator to leave the cabin or the ground crew to manually handle rods. Because the quaternary engine powers the carousel independently, rod addition and extraction cycles do not interrupt drilling, tramming, or compressor operation. On deep-hole programs where a 60 m borehole may require 10 to 15 rod additions, the automated carousel eliminates the manual handling time and safety risk associated with each rod change, directly increasing productive drilling time per shift and reducing the crew size required for safe operation.
Q: What is the dual-axis anti-deviation system with adaptive learning?
A: The standard dual-axis anti-deviation system monitors drill string lateral load in two perpendicular planes simultaneously. The adaptive learning enhancement on the KT 11 adds a machine learning layer that continuously refines the system's deviation detection model based on the actual drill string behavior in the current formation. Over the course of a drilling program, the system builds a formation-specific model of normal drill string behavior, allowing it to distinguish between genuine deviation events and normal formation-induced load variations more accurately than a fixed-threshold system. This reduces false-positive interventions in variable rock, improves response speed when genuine deviation occurs, and maintains tighter hole straightness tolerances across the full 60 m depth range as the system accumulates formation knowledge.
Q: What are the transportation and mobilization requirements for the KT 11?
A: With an operating weight of approximately 55,000 kg, the KT 11 requires a heavy-duty multi-axle low-bed trailer rated for 60 tonnes or above; special transport permits will be required in most markets. Despite its size, as a single integrated machine it requires only one trailer and one loading operation for mobilization, compared to the two or more separate loads required for a conventional rig-plus-compressor combination at this scale. On-site, the rig self-trams between drilling positions at up to 1.8 km/h. For international export, the machine is shipped as heavy break-bulk cargo or on a specialized heavy flat-rack, with full export documentation provided.
Q: How is the four-engine maintenance schedule managed in practice?
A: All four engines are sourced from the same manufacturer family and share identical service intervals, oil specifications, filter part numbers, and maintenance procedures. The centralized service layout provides ground-level access to all four engines' daily maintenance points in a single service walk-around. The satellite-primary remote monitoring module tracks engine hours for all four units independently and generates maintenance alerts when service intervals are approaching for any engine. A unified maintenance schedule covering all four engines, the compressor, and the hydraulic system is provided in the operation manual. Our spare-parts supply covers all four engines as part of the standard parts catalogue, with no specialist sourcing required for any engine-specific component.
Q: What after-sales support and service infrastructure do you provide for KT 11 deployments?
A: For KT 11 deployments, we provide a comprehensive project support package: on-site commissioning and operator training for all units, a resident service engineer for the duration of the drilling campaign, a pre-positioned spare parts kit sized for the project duration and fleet size, and a direct technical hotline to our factory engineering team. The satellite-primary remote monitoring module allows our service team to monitor all four engines and the compressor in real time and diagnose developing faults remotely before dispatching a field engineer. Standard consumables and wear parts are dispatched within 24 to 72 hours; major components within 7 to 20 business days. For large fleet deployments, dedicated logistics support for spare parts supply chain management is available as part of our premium service package.
Inquiry & After-Sales Support
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:
- Target hole diameter and maximum required depth
- Rock type, estimated UCS (MPa), and geological profile complexity
- Required daily production output (meters per shift or holes per day)
- Site location, elevation, climate conditions, and cellular coverage availability
- Applicable operator protection, dust exposure, and noise level regulatory requirements
- Number of rigs required, project duration, and preferred service package level
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