HFP3500 Hydraulic Auger Drive for 2.5–4.5T Excavators

COMMERCIAL & TRADE ENQUIRIES:

OEM Dealers | Hire Fleets | Civil Contractors | Local Councils
We supply standardized attachment packages, bulk order pricing, and custom ear/pin geometry matching for machinery dealers and equipment fleets. Call our Kilsyth workshop direct on 03 9762 6483 or email sales@stengineering.com.au to discuss commercial supply terms .

The HFP3500 Hydraulic Auger Drive is engineered for excavators operating in the 2.5 to 4.5 tonne class, delivering high torque output, smooth drilling performance, and excellent hydraulic efficiency across demanding commercial, civil, and utility drilling applications.

Designed for fencing, footing installation, tree planting, utility installation, civil construction, foundation drilling, sign installation, retaining walls, solar projects, and infrastructure works, the HFP3500 provides heavy-duty earth drilling capability while maintaining operational stability on mid-sized mini excavators.

Built for harsh Australian operating conditions, the HFP3500 features a premium Danfoss hydraulic motor paired with a heavy-duty epicyclic planetary gearbox, delivering up to 3,614 Nm of torque and supporting auger diameters up to 750mm .

Backed by an industry-leading Lifetime Non-Dislodgement Shaft Guarantee and supported locally in Kilsyth with spare parts, technical advice, and direct workshop service .

Key Features & Benefits

• Integrated Non-Dislodgement Drive Shaft: Mechanical safety design guarantees the drive shaft will not dislodge or separate from the housing under heavy tensile extraction forces (pullout loads) .
• Premium Danfoss Hydraulic Motor: Driven by genuine high-torque Danfoss hydraulic motor architecture for maximum power efficiency, continuous flow handling, and extended service life .
• Heavy-Duty Planetary Gearbox: Epicyclic reduction gearset delivers continuous torque multiplication up to 3,614 Nm across tough clay, shale, and hard ground conditions .
• Comprehensive Australian Warranty: Backed by a Lifetime Shaft Guarantee, 3-Year Gearbox Warranty, and 2-Year Hydraulic Motor Warranty .
• High-Torque Drive Output: Supports auger diameters from 100mm up to 750mm (A4 Series augers).
• Heavy-Duty Output Shaft: Heavy 65mm round output shaft engineered to handle intense torsional strain.
• Complete Hydraulic Package: Includes 1/2" hydraulic hoses and adaptors ready for installation.
• Custom Configured: Custom ear and pin setup tailored to match your specific excavator hitch and pin geometry.

Industrial Drive System

The HFP3500 combines a premium Danfoss hydraulic motor with a heavy-duty epicyclic planetary gearbox to deliver efficient torque multiplication across tough ground conditions .

Its integrated non-dislodgement mechanical safety shaft ensures that even during high tensile extraction (pulling heavy augers out of sticky clay or deep footing holes), the drive shaft remains permanently locked within the housing assembly .

Suitable Applications

Ideal for:

• Civil construction, infrastructure projects & roadworks
• Solar farm post installation & foundation drilling
• Fence post installation & rural/commercial fencing
• Building footings, pier holes & retaining walls
• Tree planting, landscaping & agricultural works
• Utility installation & council infrastructure
• Hire fleet equipment packages

Specifications

Specifications are indicative only and may vary depending on machine configuration.

Package Includes

• 1 x HFP3500 Hydraulic Auger Drive assembly
• Hydraulic hoses (1/2" BSP connection)
• Hydraulic adaptors

⚠️ Please Note: Quick-connect couplers to the excavator's auxiliary lines are not included

Important Fitment & Ordering Information

Excavator tonnage is a guide only. Attachment build class, compatibility, and pricing are determined by your machine's pickup configuration:

• Pin diameter
• Pin centre-to-centre distance
• Width between ears
• Quick hitch type and style

Auger drive performance and fitment are also determined by:

• Hydraulic oil flow (L/min)
• Auxiliary operating pressure (Bar / PSI)
• Intended auger diameter & ground conditions

Optional Mounting Configurations Available:

• Single Pin Hitch
• Double Pin Hitch
• Double Pin Cradle Hitch

Auger bits and machine-side quick-connect couplers are sold separately.

Freight & Delivery

• Standard Shipping: Checkout shipping is to your nearest freight depot or a commercial address with forklift facilities.
• Residential / Farm Delivery: Available upon request (freight carrier surcharges apply). Contact us directly for a custom freight quote.
• Workshop Pickup: Local pickup is available from our Kilsyth, VIC facility .

Support & Official Warranty

All HFP Auger Drives come with an official Warranty Certificate and local backing through our Kilsyth workshop :

• 🛡️ LIFETIME Shaft Guarantee: Guarantees the drive shaft will not dislodge or separate from the housing under tensile extraction forces (pullout loads) .
• ⚙️ 3-YEAR Planetary Gearbox Warranty: 36 months protection on internal planetary gears, reduction gearsets, main bearings, and structural gear housing .
• 🔩 2-YEAR Motor & Drive Warranty: 24 months protection on genuine Danfoss hydraulic motors, rotary seals, manifold blocks, and input shafts .
• 🛠️ Local Australian Support: All warranty assessments, spare parts supply, and servicing are handled directly by our technical team in Kilsyth, VIC .

Why Choose HFP Attachments

Most suppliers just import and move boxes — then you're on your own. HFP is different.

We don't just sell attachments. We build them, support them, repair them, and stand behind them .

• Australian-made attachments manufactured in-house
• Premium imported attachments backed by local parts and technical support
• Lifetime shaft & multi-year warranty guarantees on earth drilling drives
• In-house Kilsyth workshop repairs, custom pin-matching, and modifications available
• Direct phone access to real people who understand real-world machine applications

Contact & Orders

• Phone: 03 9762 6483
• Email: sales@stengineering.com.au
• Location: Kilsyth VIC 3137
• Order Online: Available via our website checkout