Kaishan KD150S Large-Diameter Solar Piling Drill Rig (185–500 mm)

Diesel Engine Portable Screw Air Compressor Option:

• Kaishan KP1400-25 CU (Portable diesel screw compressor)

*Note: Air compressor selection is subject to target borehole diameter and jobsite air supply hose length.

• Unmatched 500 mm Large-Diameter Borehole Capacity: Engineered specifically for cast-in-place concrete piles, precast pipe piles, and ground screw sockets in solar installations where standard piling rigs stall in hard bedrock.
• Quad-Motor High-Torque Drive (≥12,000 N·m): Employs four synchronized hydraulic motors driving high-modulus gears, providing the massive torque necessary to rotate heavy 8 to 12-inch hammers without bit binding or stalling in fractured formations.
• Steep Hillside Mobility & Winch Security: Built with 440 mm ground clearance, widened crawler pads, and ±10° track leveling, paired with an optional 8-ton frame winch that enables safe, anchored drilling operations across severe mountain solar farm inclines.

Q: What makes the KD150S superior for large-diameter solar pile drilling compared to standard rigs?

A: Standard crawler drill rigs typically max out at 203 mm, whereas the KD150S is purpose-engineered to drill huge 185–500 mm boreholes. It features a four-motor rotary head delivering ≥12,000 N·m torque, a heavy box-section steel feed beam, and desert air filtration, making it the ideal machine for cast-in-place concrete piles on harsh desert and rocky solar job sites.

Q: How do the optional 1-ton and 8-ton winches assist on the jobsite?

A: The optional 1-ton mast winch allows operators to easily hoist heavy 8–12 inch DTH hammers and large drill bits during changeout. The optional 8-ton chassis winch anchors the machine securely when traversing and drilling on steep hillside slopes, preventing rollover and enhancing traction.

Q: What external compressor capacity is recommended for the KD150S?

A: The KD150S requires an external air supply of 15–45 m³/min at 1.0–2.4 MPa. We recommend pairing it with the Kaishan KP1400-25 CU portable diesel screw air compressor to ensure rapid bottom-hole chip flushing and maximum penetration rates in large-diameter 500 mm holes.