Kaishan KT7H Integrated Surface DTH Drilling Rig — High-Performance Open-Pit Driller

Product Description

The Kaishan KT7H Integrated Surface DTH Drilling Rig is built for operators who need a bit more “muscle” in their daily drilling cycles. Specifically designed for open-pit mining and large-scale stone excavation, the KT7H steps up the power and capacity compared to its smaller siblings. By housing both the high-pressure air source and the hydraulic rig on a single, robust crawler, it provides a level of mobility that traditional separate-unit setups simply cannot match.

At the heart of the KT7H is the Yuchai YC6A260-T301 diesel engine, delivering a substantial 191kW. This extra power is crucial for driving the integrated two-stage screw compressor, which pushes out 17m³/min at 18 bar. This airflow is optimized for clearing larger cuttings from holes ranging from 105mm up to 146mm, ensuring that even in deep or damp formations, your drilling progress remains consistent and fast.

The KT7H utilizes a high-strength aluminum alloy propulsion beam, a signature of Kaishan’s integrated series. This design significantly reduces the weight on the boom while maintaining the rigidity needed for high-pressure feed and high-torque rotation. The rig also features an automated rod handling system and a dedicated drill pipe lubrication module, which together drastically reduce the downtime associated with changing rods and maintain the longevity of your drill string.

Operating in dusty quarry environments requires superior filtration, and the KT7H delivers with its high-efficiency dry dust collection system. This not only keeps the rig cleaner—reducing maintenance intervals—but also ensures the operator works in a safer, clearer environment. The rig’s flexible boom and beam geometry (including a 147° tilt and over 100° of swing) allow for precise positioning even on uneven or benched terrain.

With a ground clearance of 430mm and a climbing capacity of 25 degrees, the KT7H is as mobile as it is powerful. It handles the transition between drilling sites with ease, eliminating the need for a separate tractor or tow vehicle. Backed by Kaishan’s global R&D and Shaanxi Kaishan’s commitment to localized support, the KT7H is a reliable workhorse for any serious mining contractor.

Technical Specifications