HFP Heavy Duty Post Rammer & Rock Breaker | 4.5–6.5 Tonne Excavators | 45mm Pins

Industrial Grade Dual Function Post Rammer & Rock Breaker

The HFP Heavy Duty Post Rammer & Rock Breaker is engineered for 4.5–6.5 tonne excavators, combining efficient post driving and hydraulic breaking capability in one heavy-duty, versatile attachment.

Designed for fencing, civil construction, utilities, rural infrastructure, site preparation and construction applications, the dual-function design reduces the need for separate attachments and provides greater versatility from mid-size excavators.

With a 68mm tool diameter, 600 Joule impact energy and 500–900 BPM impact rate, the unit delivers powerful impact performance while maintaining a 340kg operating weight suitable for this machine class.

Supplied complete with a post cup, four breaker tools, hydraulic hoses and fittings, and backed locally by HFP Attachments with parts, repairs and ongoing technical support.

Key Features

• Dual-function hydraulic post rammer and rock breaker
• Suits 4.5–6.5 tonne excavators
• 45mm pin configuration
• 68mm tool diameter
• 600 Joule impact energy
• 500–900 BPM impact rate
• Post cup included
• Four breaker tools included
• High-efficiency hydraulic oil circuit
• Balanced operating weight for mid-size excavators
• Simplified internal structure for servicing and maintenance
• Hydraulic hoses and fittings included
• Suitable for commercial, civil, fencing, construction and rural applications
• Backed locally by HFP Attachments

Specifications

Package Includes

• HFP Heavy Duty Hydraulic Post Rammer & Rock Breaker
• 1 × Post Cup
• 1 × Moil Point Chisel
• 1 × Blunt Chisel
• 1 × Wedge Chisel
• 1 × Conical Chisel
• Hydraulic hoses and fittings

Machine-side quick connects are not included.

Post Driving Applications

Configured with the supplied post cup, the attachment is suitable for a range of post-driving applications, including:

• Fencing
• Farm and rural fencing
• Property boundaries
• Civil construction
• Rural infrastructure
• Utility installations
• General post installation

Breaking Applications

Changing from the post cup to the appropriate supplied breaker tool allows the attachment to be used for:

• Rock breaking
• Concrete breaking
• Hard ground preparation
• Trenching work
• Construction works
• Civil works
• Site preparation
• General hydraulic breaking applications

The four supplied breaker tools provide different working profiles for varying materials and applications.

Hydraulic Requirements

Designed to operate with:

• Hydraulic oil flow: 39–60 L/min
• Working pressure: 110–140 Bar
• Hose diameter: 1/2 Inch

Machine hydraulic specifications should be confirmed prior to ordering to ensure compatibility.

Fitment & Machine Compatibility

This attachment is designed for 4.5–6.5 tonne excavators and is available with a 45mm pin pickup.

Excavator tonnage is a guide only. Machine pickup dimensions and hydraulic specifications can vary between makes and models.

To ensure correct fitment and hydraulic compatibility, please provide:

• Machine make
• Machine model
• Pin diameter
• Pin centre-to-centre measurement
• Width between ears
• Machine auxiliary hydraulic flow (L/min)

Machine specifications must be confirmed prior to supply to ensure the correct pickup configuration and hydraulic compatibility.

Suitable Applications

• Fencing contractors
• Rural and agricultural properties
• Civil construction
• Rural infrastructure
• Utilities
• Councils
• Hire fleets
• Site preparation
• Construction contractors
• General excavation works

Commercial & Trade Enquiries

Equipment Dealers | Hire Fleets | Fencing Contractors | Civil Contractors | Local Councils | Utilities | Government Fleets

HFP Attachments supplies excavator attachments and equipment packages for contractors, equipment dealers, hire fleets, councils, utilities and government fleets throughout Australia.

We can assist with:

• Dealer and volume pricing
• Multi-unit and fleet supply
• Machine-specific pickup configurations
• Standardised attachment packages across machinery fleets
• Custom colours and branding for dealer and fleet requirements
• Technical fitment support

For dealer, fleet or volume enquiries, contact our team on 03 9762 6483 or sales@stengineering.com.au to discuss your requirements.

Important Information

Final pickup configuration and fitment are based on the machine specifications supplied at the time of order.

Hydraulic hoses and fittings are included.

Machine-side quick connects are not included.

Product images are for illustrative purposes only.

Custom colours are available on request to suit equipment dealers, hire fleets, councils, government, utilities, contractors and corporate requirements.

Colour, decals, hydraulic hose routing and minor design features may vary between production runs as part of ongoing product development.

Machine specifications should always be confirmed prior to ordering to ensure correct fitment and hydraulic compatibility.

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
• Imported attachments backed by local parts and support
• Expert advice from purchase through to installation
• Workshop-based repairs and modifications available
• Local warranty support with real people you can contact
• Experienced team who understand fitment and real-world applications

Whether you choose Australian-made or imported equipment, you're dealing with a company that works with attachments every day — not just a reseller.

With HFP, you get the right attachment, correctly fitted and backed by local support.

Support & Warranty

All products are backed locally by HFP Attachments with access to parts, technical support, repairs and after-sales service.

Warranty claims are handled directly through HFP Attachments, providing a straightforward and efficient warranty process.

Our goal is to minimise downtime and provide practical solutions as quickly as possible.

Freight & Delivery

Standard website shipping is to the nearest freight depot or a commercial business with forklift facilities.

Residential and farm deliveries are also available; however, freight companies classify any property with a house as a residential delivery and charges are higher.

Please contact us for a freight quote if you require residential delivery.

Pickup is available from our factory in Kilsyth with 2–3 business days' notice.

Contact & Orders

Phone: 03 9762 6483
Email: sales@stengineering.com.au

Order Online: Available via our website checkout