Recommended flow
18-48 GPM
Torque @ 3,000 PSI
7,761 ft-lbs
Model
9DDS
Guaranteed Fit
Fast Shipping
Hassle-Free Returns
Description
Made in USA
5-yr warranty
Overview
This Digga excavator auger drive, the 9DDS, is the smaller of two models built for 9–12 tonne machines, sitting directly below the 12DDS on the same data sheet and sharing its shaft, bit range and mount pattern. It asks for less flow than the 12DDS to reach its rated torque, which makes it the better match on a machine at the lighter end of that class or one whose auxiliary circuit is the limiting factor. Excavator mounts and linkages are selected by pin size and ordered separately.
Key Features of the 9DDS High Flow Auger Drive
- 7,761 ft-lbs of torque — the figure Digga publishes for the 9DDS
- 18-48 GPM recommended flow — match this against your carrier’s auxiliary circuit
- 2.5" Hex output shaft — sets which Digga auger bits fit
- Compact high torque Digga manufactured gearbox
- Digga designed Eaton motor with integrated pressure relief valve eliminating the need for bulky valve blocks while reducing many potential leak points
- 2 Piece shaft design ensures maximum side load ratings without increasing load on bearings
- 5 year gear box and 3 year motor warranty / lifetime shaft pull-out warranty
- Over 40 years design and manufacturing experience
- Easily converted to a Screw Anchor Drive with the addition of our patented ‘Anti Kickback Valve’
- TRU-CUT – a 12†auger cuts a 12†hole, no more oversized holes!
Why This Drive Suits Its Machine Class
- Match the drive to the carrier, not to the biggest number available — a 9–12T excavator can only react against so much torque before it starts lifting itself rather than turning the auger.
- The 9DDS and 12DDS share mounts and bits — a fleet can run both without duplicating linkages or auger inventory.
- Pressure relief valve included — integrated into the motor rather than added as an external block.
- The 2.5" hex shaft opens the A8 and RC8 ranges, so one drive covers soil and fracturable rock.
9DDS High Flow Auger Drive Specifications
| Specification | Value |
|---|---|
| Model | 9DDS |
| Torque @ 3,000 PSI | 7,761 ft-lbs |
| Max torque @ 3,500 PSI | 9,036 ft-lbs |
| Recommended flow | 18-48 GPM |
| Motor type | Orbital Geroler |
| Max pressure — do not exceed | 3500psi @ 29gpm |
| Max flow — do not exceed | 55gpm @ 1800psi |
| Max horsepower | 60 HP |
| Pressure relief valve | Included |
| Standard output shaft | 2.5" Hex |
| Recommended auger bits | A8 / RC8 |
| Max auger diameter — earth | 48" |
| Max auger diameter — clay/shale | 48" |
| Weight | 350 lbs |
| Overall length | 37.2" |
| Diameter | 11.4" |
| HALO auger alignment | Optional |
| 9dds | 12DDS |
| Carrier weight range | 9-12T (19,800-26,500 lbs) |
Every figure above is taken from Digga’s published data sheet for the 9DDS. Add your machine make and model at checkout and we confirm the fit before the order ships.
Which Machines Fit the 9DDS?
Sized for 9–12 tonne excavators and supplied for a pin-on mount. Fitment is set by machine weight class and pin dimensions rather than brand:
| Fitment factor | Requirement |
|---|---|
| Mount | Excavator pin mount and linkage, sold separately, selected by pin diameter |
| Case drain | Not required — this is a single-speed drive |
| Hoses | Sold separately |
| Auger bits | Sold separately |
Order online — enter your machine make and model with the order and we confirm the mount fits before it ships, coming back to you only if something needs changing. Questions first are welcome at support@eskidsteer.com or on the chat button on your screen.
9DDS High Flow Auger Drive Questions, Answered
Should I choose the 9DDS or the 12DDS?
Both suit 9–12T excavators and share the same shaft, bits and mounts. The 12DDS needs more flow to reach its higher torque, so if your auxiliary circuit is the constraint the 9DDS is the better match; if the machine can feed it, the 12DDS gives you more turning force.
Are mounts included with the 9DDS?
No. Excavator mounts and linkages are ordered separately and chosen by your dipper pin diameter and spacing.
Does the 9DDS require a case drain?
No. The 9DDS is single speed and runs on a standard two-line auxiliary circuit. Digga’s two-speed DDT drives are the models that need one.
What warranty applies to the 9DDS?
Five years on the gearbox, three years on the motor, and a lifetime shaft pull-out warranty for drilling use, subject to maintenance per the operator’s manual. Digga’s terms treat anchoring separately — drives used for anchoring above 12,000 ft-lbs without an Energy Control Valve carry no warranty.
Can the 9DDS install screw anchors?
Digga distinguishes drilling from anchoring. Anchoring above 12,000 ft-lbs without an Energy Control Valve voids cover entirely, so an ECV-equipped anchor drive is the right tool for that work rather than a drilling drive.
What hydraulic flow does it need?
This one is rated for 18-48 GPM. Check that figure against your machine’s auxiliary hydraulic output before choosing — a machine that cannot supply the rated flow will never reach the rated performance, and one that exceeds the limit will run the attachment hot.
Will this fit my machine?
Check three things: it is built for 9-12T (19,800-26,500 lbs); the interface is Excavator pin mount and linkage, sold separately, selected by pin diameter; and it needs 18-48 GPM. Add your machine make and model at checkout and we confirm the fit before the order ships.
How is shipping calculated?
Shipping is calculated at checkout — add the item to your cart, enter your delivery address, and the shipping charge is shown before you complete your order. Lift gate service is available for residential deliveries and can be selected at checkout.
How do I order?
Add the item to your cart and check out online — the order page asks for your machine make and model, so there is no need to call ahead. We check the mount against your machine after the order and come back to you if anything needs changing. If you would rather ask first, email support@eskidsteer.com or use the chat button on your screen.
What to Order Alongside the 9DDS
- Auger bits — The 9DDS takes a 2.5" Hex output shaft, and Digga pairs it with the A8 / RC8 range.
- Mount and linkage — the 9DDS ships without one, so the interface is chosen to match your carrier rather than a generic plate.
- Hydraulic hoses and flush-face quick disconnects — sized to the 9DDS’s 18-48 GPM flow rather than to whatever is on the shelf.
- XO25 and XT25 auger extensions — cheaper than buying a longer bit for the occasional deep hole on the 9DDS, and they stack.
Contractors reach this page searching for a excavator auger, for a auger drive, or specifically for a skid steer auger attachment. The 9DDS also comes up when people are comparing an high flow auger drive against a digga auger, since Digga builds both on shared mounts and shared auger families. Whichever term brought you here, the 9DDS and every other 9dds auger drive drive in the range is made in Dyersville, Iowa.
Shipping
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Returns
Returns
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