JK730-2 Automatic Rod Exchange Crawler DTH Drilling Rig 90-165mm Hole 21m Auto Depth Yuchai 92kW Power

This JK730-2 crawler mounted DTH drilling rig brings automatic rod exchange to the 90-165 mm blasthole class, with a 5+1 or 6+1 rod carousel that enables hands-free rod changing down to depths of 18 or 21 meters. For operators drilling multi-pass holes shift after shift, the automation removes the most repetitive and physically demanding part of the job, improving both safety and productivity. The rig is powered by a Yuchai 92 kW diesel engine, with a Cummins 97 kW option for fleets that standardize on that brand, and the rotary head delivers 3300 Nm of torque at speeds up to 90 rpm. At 10500 kg, the JK730-2 is the largest machine in this JK crawler series, providing a stable platform for heavy hammers and deep drilling programs.

• Automatic Rod Exchange: hands-free rod handling to 18-21 m depth reduces crew fatigue and cycle time.
• 5+1 / 6+1 Rod Carousel: generous onboard rod capacity keeps deep holes flowing without reloading.
• Yuchai 92kW Engine: strong power reserve, with optional Cummins 97kW for brand standardization.
• 3300Nm Rotation Torque: robust rotary output for hard rock and large hammers.
• 10500kg Stable Base: heavy platform reduces vibration and improves hole accuracy.
• 76mm Drill Rods: stiff rod string contributes to straight, consistent holes.

The JK730-2 is designed for quarries and mines that drill deep production holes on a continuous basis, where automatic rod handling translates directly into more meters drilled per shift. It is also well suited to large infrastructure projects such as dam foundations, railway cuttings, and tunnel portal stabilization, where deep, straight blast holes are critical to excavation quality. The optional Cummins engine makes the rig easy to integrate into fleets that already run Cummins-powered equipment. For drilling contractors, the automation feature is a strong selling point when tendering for work that emphasizes safety and productivity.

Factory testing includes a complete automatic rod exchange cycle, torque verification, and a trial drilling run to specification. The rig ships in a 40ft flat rack container or by RORO vessel with the carousel and mast secured and protected. Documentation covers the CE certificate, engine compliance, maintenance schedules, and a full spare parts catalog. Remote commissioning and operator training are provided, and our engineers remain available for technical support throughout the machine's working life.