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2 Speed Drilling auger drives



2 Speed High Flow Auger Drives 20T-28T

Digga has long been at the forefront of innovation in drilling technology, consistently delivering advanced solutions that improve performance, efficiency, and operator control. That legacy continues with the Digga Two Speed Drive — the only two-speed auger drive on the market purpose-built for pendulum drilling applications. The PDT25 to PDT50 Range comes standard with Digga’s revolutionary Halo alignment system, providing real-time visual feedback for perfectly vertical drilling—eliminating the need for a spotter and freeing up labour for other tasks on-site.

This groundbreaking design gives you two drives in one. With the flick of a switch, operators can shift between:

  • High speed, low torque mode – Perfect for small-diameter augering, rapid spoil removal, and cleaning the base of the hole. Tasks that typically require speed, such as finishing or clearing out loose material, are completed faster and more efficiently.
  • Low speed, high torque mode – Ideal for heavy-duty drilling applications using large-diameter augers, especially in tough, compacted, or rocky ground. This setting delivers the brute power needed to break through challenging conditions without stalling or overloading the drive.

Features & Benefits

This dual-speed capability gives professional drillers greater control, efficiency, and adaptability, allowing them to tackle a wider range of applications with a single drive. It also enables the use of a larger reduction gearbox than would typically be feasible with a fixed-speed unit. Since speed is only critical during specific phases—like spoil removal—the Two Speed compensates by delivering high-speed output when needed, while maintaining high torque for the majority of the drilling process.

Whether you're drilling deep foundation piles, working in variable ground conditions, or managing time-sensitive jobs, the Digga Two Speed lets you maximize productivity without compromise. It’s the ultimate solution for operators who want the power of a high-torque drive and the efficiency of a high-speed unit — all in one smart, reliable package.

If you're ready to upgrade your capability and streamline your equipment, the Digga Two Speed is the clear choice. Drill smarter. Drill deeper. Drill with Digga.

specs see it in action

2 Speed High Flow Auger Drive Specifications

Specification pdt25 pdt30 pdt40 pdt50
Rec Flow Range 40-180 lpm 40-180 lpm 40-180 lpm 40-180 lpm
Nominal Torque 27373 Nm 31829 Nm 33733 Nm 39224 Nm
Motor Danfoss Danfoss Danfoss Danfoss
Pressure Valve Fitted Included Included Included Included
Energy Control Valve Optional Optional Optional Optional
Case Drain Required Yes Yes Yes Yes
Max Pressure -   -   -   -   -   Do not exceed 240 bar @ 150 lpm  -   -   -   -   -
Max Flow -   -   -   -   -   Do not exceed 180 lpm @ 200 bar -   -   -   -   -
Max Continuous Power -   -   -   -   -   Do not exceed 60 Kw (80 hp)   -   -   -   -   -   -
Overall Length 1217 mm 1217 mm 1217 mm 1217 mm
Diameter 355 mm 355 mm 355 mm 355 mm
Weight (no frame / hitch) 308 kg 309 kg 309 kg 309 kg
Std Output Shaft 100 mm Square 100 mm Square 100 mm Square 100 mm Square
Swing Control Optional Optional Optional Optional
Diggalign Optional Optional Optional Optional
Halo Included Included Included Included
Rec Auger 10 / 11 Series 10 / 11 Series 10 / 11 Series 10 / 11 Series
Max Auger Dia Clay / Shale 1200 mm 1200 mm 1500 mm 1500 mm
Max Auger Dia Earth 1600 mm 1800 mm 1800 mm 1800 mm
(*) Max/min drilling diameter (DIA) dependant on ground conditions. Guide is a recommendation only.