JK631 Compact Integrated DTH Drilling Rig 12 Ton Yuchai Engine GE 20bar Compressor 90-165mm Hole Diameter

This JK631 compact integrated DTH drilling rig packs quarry-class drilling capability into a 12 ton package that is easy to transport, easy to maneuver, and economical to operate. The rig is powered by a Yuchai YCA07A260-T30 diesel engine rated at 196 kW, driving a GE two-stage rotary screw compressor that delivers 17 m3/min at 20 bar. That air output supports DTH hammers drilling 90-165 mm holes in medium to hard rock, making the JK631 a genuine production machine rather than a scaled-down utility unit. With a transport width of only 2380 mm and a 27 degree grade ability, the rig moves easily between sites and handles rough terrain without support equipment.

• Compact 12 Ton Design: low transport dimensions reduce logistics cost and allow access to confined sites.
• Yuchai 196kW Engine: dependable Chinese-built diesel with low fuel consumption and easy parts supply.
• GE Two-Stage Compressor: 17 m3/min at 20 bar provides full power for 90-165mm DTH drilling.
• 27 Degree Grade Ability: strong climbing performance for hillside quarries and road cuts.
• 450L Fuel Tank: full-shift operation without refueling stops.
• Single Operator Setup: integrated compressor and dust control mean one machine, one operator, no support units.

The JK631 is a versatile choice for small to medium quarries, aggregate producers, road construction contractors, and mining contractors working on satellite pits. Its compact footprint makes it ideal for hillside quarries with tight benches and for projects where the drill must be moved frequently between scattered locations. The machine handles both vertical and inclined blast holes, and its integrated compressor removes the need for a second support vehicle, cutting mobilization cost and site congestion. For growing operations, the JK631 offers an affordable entry into integrated DTH drilling without compromising on hole size capability.

Every JK631 is factory tested with a full compressor performance check and trial drilling before packing. The rig is shipped in a 40ft flat rack container or by RORO vessel with professional lashing and weather protection. Documentation includes CE certification, engine papers, operation and maintenance manuals, and a recommended spare parts list for the first 2000 operating hours. Remote commissioning support and operator training videos are provided with every delivery.