DIGGA PD4 High Flow Backhoe Auger Drive Unit


Recommended 50 – 150 LPM. Includes 2m 1/2″ hoses, flat face couplers, frame, cradle & linkage.

$4,109.00 +GST

To suit all Backhoes such as JCB, Caterpillar, Case, John Deere, Komatsu, New Holland and Kubota.

DIGGA Auger Drive Unit

Australian manufactured. Heavy duty auger drive unit to suit Backhoes.  Digga’s PD4HF to PD10HF range of drilling auger drive units are ideally suited for backhoes with a flow between 50 to 200 lpm. Fitted with Digga / Eaton bell motors with integrated pressure relief valve and input housing. Innovative design allows the gearbox to go down the hole to maximise drilling depth without extensions, eliminating downtime and minimises maintenance, optimising your returns. Digga planetary auger drives are specially designed for drilling and augering in most ground conditions.


2.2m hydraulic hoses & flat face couplers. Let us know your backhoe hitch dimensions at time of order and hitch will be supplied to suit.


  • 75mm square shaft
  • Compact high torque Digga manufactured gearbox
  • Highly efficient design with less moving parts
  • Fitted with Eaton/Digga geroler hydraulic motor
  • No case drain required
  • Full range of shafts available upon request
  • Extreme duty shaft locking system
  • Drive fits down the hole for greater digging depth
  • 5 Year Gear Box Warranty & 3 Year Motor Warranty



DIGGA PD4 High Flow Auger Drive Unit – Attachment Specifications

Recommended Flow: 50-150 lpm
Max Torque: 4473 Nm
Motor: 6K Bell EATON
Pressure Valve Fitted: Included
Energy Control Valve: Optional
Case Drain Required: No
Max Pressure – Do not exceed: 240 bar @ 130 lpm
Max Flow – Do not exceed: 170 lpm @ 180 bar
Max Power – Do not exceede: 50 Kw (67 hp)
Overall Length: 950 mm
Diameter: 290 mm
Unit Weight (no frame / hitch): 149 Kg
Package Weight (hitch): 169 kg
Package Weight (slide frame): 210 kg
Standard Output Shaft: 75mm Square
Dimensions on Pallet (with 300 and 450mm Auger and Slide Frame): 150cm (L) x 110cm (W) x 60cm (H) 324 kg
Dimensions on Pallet (with 300 and 450mm Auger and Hitch): 150cm (L) x 110cm (W) x 60cm (H) 283 kg
Suitable Augers: A6 Series – 1500mm Overall Length, 8mm Flights, 75mm Square Hub
Max Auger Diameter in Clay / Shale: 750 mm
Max Auger Diameter in Earth: 1000 mm
Optimum Drilling Speeds (RPM): Earth = 55-65 RPM, Clay = 45-55 RPM, Rock = 25-45 RPM
Standard Hoses & Couplers: 2.2m hydraulic hoses & flat face couplers
Warranty: 5 Year Gearbox and 3 Year Motor Warranty