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Hydraulic Drifter

Crawler Drill Drifter

Crawler Drill Drifter

Featuring a dual damper mechanism that automatically detects and controls changes in drilling conditions, and a wedge-shaped piston design for optimum energy transfer efficiency, it quickly adapts to a wide range of rock types. By providing optimal control based on load, it achieves high fragmentation efficiency. Allows for stable, comfortable, and efficient drilling without any need for complex operations.

Features

  • Wedge-shaped piston

    Wedge-shaped piston

    Through computer simulation and field testing, this shape was determined to deliver the most efficient impact performance.

  • Dual Damper

    Dual Damper

    The dual damper maintains rock contact and absorbs rebound force from the rock mass. By optimizing the efficiency of impact energy propagation, it enhances drilling capacity and product life.

  • Reverse Percussion (Optional Equipment)

    Reverse Percussion (Optional Equipment)

    This device forcibly pulls out the rod when jamming occurs. It enables smooth rod extraction, minimizing the stress of drilling.

Drill Jumbo Drifter

Drill Jumbo Drifter

This high-output hydraulic drifter achieves drilling with minimal hole deviation and roughness across rock types, from ultra-hard to soft rock. Specifically, by enhancing the efficiency and output of the striking mechanism through its proven dual damper system, it delivers best-in-class drilling performance and extended product life of bits, rods, etc. Enhanced durability of rotating components and a drifter mounting structure optimized for high-torque drilling enable stable, large-diameter drilling. The swivel seal system also helps improve maintenance.

Features

  • Stable Large-Diameter Drilling

    Stable Large-Diameter Drilling

    Increased shank rod rigidity via three-point support enables handling of large-diameter drilling applications like forepoling and center cutting.

  • Dual Damper (Shock Absorption Device)

    Dual Damper (Shock Absorption Device)

    The dual damper enables drilling with optimal thrust, reducing idle blow and hole deviation while significantly extending the product life of accessories.

  • Compact Valve Design

    Compact Valve Design

    The non-coaxial compact valve improves responsiveness and achieves high-efficiency impact output.

Model HD709 HD712 HD715 HD818 HD822 HD826 HD828S HD828 HD836
Mass（※1With RP) kg 199 230 269(304) 202(238) 242(281) 243(282) 271(312) 271(312) 350(403)
Length（※1With RP) mm 1,121 1,151(1346) 1,174(1369) 1,100(1282) 1,130(1314) 1,150(1334) 1,158(1343) 1,148(1333) 1,171(1366)
Width mm 352 368 380 352 374 374 388 388 419
Height mm 275 328 329 275 328 328 328 328 375
Maximum impact rate min-1 2,500 2,500 2,500 3,400 3,300 3,600 3,000 3,300 3,100
Maximum rotation speed min-1 200 190 150 200 190 190 190 190 120
Rod size T38(T45) T45(T38,T51) T51 T38(T45) T45(T38) T45(T38, T51) T51(ST58, T45) T51(ST58, T45) GT60, ST58
Bit diameter mm φ64～89 φ76～102 φ89～127 φ64～89 φ64～102 φ76～115 φ89～127 φ89～127 φ102～140(※2φ152)
Hydraulic damper Dual damper Dual damper Dual damper Dual damper Dual damper Dual damper Dual damper Dual damper Dual damper
  • ※1RPReverse Percussion
  • ※2When Drill Tube is Used
Model HD30 HD90 HD210S HD220 HD250
Mass kg 64 130 174 187 179
Length mm 713 903 869 1003 996
Width mm 268 292 294 306 305
Height mm 148 225 264 248 246
Maximum impact rate min-1 3,000 3,400 3,650 3,800 4,530
Maximum rotation speed min-1 300 250 250 250 250
Rod size 22H, 25H, 28H 28H, 32H R32, T35, T32,
R38, T38		 R38, T38, R40 R38, T38, R40
Bit diameter mm φ35～42 φ38～55 φ45～76 φ45～76(φ102) φ45～76(φ102)
Hydraulic damper – – Dual damper Dual damper Dual damper