Auger Torque 4500 MAX Earth Drill for 3–5 Tonne Mini Diggers

The Auger Torque 4500 MAX earth drill is a hydraulic auger drive for 3–5 tonne mini diggers. It turns an auger with up to 4,499Nm of torque to drill post holes, tree pits and foundation holes from 100mm to 900mm across.

It runs on 50–95 l/min of oil at 80–240 bar from your excavator's auxiliary circuit, and its 65mm round output shaft takes Auger Torque S4 augers. It's supplied with hoses and adaptors. Quick release couplers aren't included.

What You Need to Start Drilling

The earth drill is the hydraulic drive unit that turns the auger. To start drilling you'll also need:

• A hitch to mount it on your excavator: the 3000–4500 MAX hitch, made to fit your machine's pins and dipper.
• An auger: the S4 auger in the diameter you need, up to 900mm with this drive.

Key Features

• Up to 4,499Nm of torque at 240 bar
• Recommended for 3–5 tonne mini diggers
• Drills holes from 100mm to 900mm across with S4 augers
• 65mm round output shaft
• Epicyclic (planetary) gearbox to multiply the motor's torque
• High-quality hydraulic motor
• Non-dislodgement shaft: a one-piece shaft that can't drop out of the drive
• Output shaft bearings that Auger Torque says are up to 50% larger than competing drives'
• Forged hood ears for extra strength where the hood takes the most strain
• Supplied with hoses and adaptors (quick release couplers not included)

4500 MAX Earth Drill Specifications

Where It Works Best

• Fence posts and gate posts
• Tree and hedge planting
• Footings for decking, sheds and garden buildings
• Sign posts and small foundations

Hydraulic Requirements

The 4500 MAX needs a two-way auxiliary circuit that can supply 50–95 l/min at up to 240 bar. Oil flow sets how fast the auger turns and pressure sets the torque, so a machine at the low end of the range will drill more slowly. The circuit needs to run both ways so you can reverse the auger to free it. Check your machine's auxiliary flow and pressure before you order, or send us your machine details and we'll check them for you.

Fitting It to Your Excavator

Machine weight is the starting point, but excavators in the same class use different pins, dippers and quick hitches, so the hitch is made to measure. When you order, send us:

• Your excavator make, model and operating weight
• Front and rear pin diameters, pin centres and dipper width
• Your quick hitch make and model, if you use one
• Your auxiliary circuit's flow and pressure, if you know them

Our guide on how to measure an excavator for a new bucket shows how to take the pin measurements, and they're the same for an auger hitch.

Delivery and Ordering

We confirm the earth drill, hitch and hydraulics suit your machine before anything is supplied. Delivery is usually within 7 to 10 working days, although factory lead times can change this. If you need it for a fixed date, contact us before ordering so we can confirm the current lead time.

4500 MAX Earth Drill FAQs

What size excavator does the 4500 MAX suit?

Auger Torque recommends it for 3–5 tonne mini diggers. Your machine's auxiliary circuit also needs to supply 50–95 l/min at 80–240 bar.

What size holes can it drill?

From 100mm to 900mm across with Auger Torque S4 augers, depending on the ground.

Does it come with a hitch and auger?

No. It comes with hoses and adaptors, and you choose the hitch and S4 auger separately, so you get the right pin size and hole diameter.

What hydraulics does it need?

A two-way auxiliary circuit that supplies 50–95 l/min at 80–240 bar.

Which augers fit it?

Auger Torque S4 augers with a 65mm round hub. See the S4 auger for diameters and teeth.

Other Sizes

For a smaller or larger machine, see the 3500 MAX earth drill or the 5500 MAX earth drill. Compare every size in our excavator auger drives, or see all our mini digger augers.

Not sure which size you need? Our guide on what size auger you need matches earth drills, augers and hitches to excavator weight and hydraulics.