Product wear part Construction Surface Trencher
Product attachment Construction wheel loader

Mining excavatorHydraulic rock arm

The Enstruc® Hydraulic Rock Arm for large quarry and mining excavators are engineered for challenging rock breaking and excavation tasks, delivering exceptional excavator ripping power and precision.

Utilising advanced hydraulic technology, our high productivity excavator rock arms effortlessly penetrate materials such as salineland rock, shale, frozen soil, limestone, siltstone, and sandstone, ensuring superior performance and efficiency on mine sites.

Hydraulic rock arm for construction, quarry and mining excavators

Key Features

  • Suitable for 65 – 180t class excavators
  • Dedicated ripper shank hydraulic cylinder
  • Increased boom & arm weight for penetration
  • Built with lightweight, high strength steel
  • Shank is protected with HB500 wear plates
  • Equipped with HD shank guard protector
  • Includes large powerful stick cylinder
  • Replaceable forged dozer ripper tooth

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Specifications and sizes

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Category Part Number Machine Class Cylinder Penetration Depth Weight
Category65 Part NumberHRA65 Machine Class143,300 – 167,551 lbs 65 – 76 tonne CylinderDouble Penetration Depth121 ” 3072 mm Weight58422 lbs 26500 kg
Category70 Part NumberHRA70 Machine Class143,300 – 167,551 lbs 65 – 76 tonne CylinderDouble Penetration Depth121 ” 3072 mm Weight61729 lbs 28000 kg
Category80 Part NumberHRA80 Machine Class169,755 – 211,643 lbs 76 – 96 tonne CylinderDouble Penetration Depth118 ” 3000 mm Weight66800 lbs 30300 kg
Category100 Part NumberHRA100 Machine Class220,462 – 275,577 lbs 100 – 125 tonne CylinderDouble Penetration Depth124 ” 3150 mm Weight79917 lbs 36250 kg
Category140 Part NumberHRA140 Machine Class308,647 – 396,832 lbs 140 – 180 tonne CylinderDouble Penetration Depth146 ” 3700 mm Weight88295 lbs 40050 kg

Tailored products and wear solutions for productivity challenges

Enstruc specialises in custom engineered products designed to tackle heavy industry equipment productivity and wear challenges. Our buckets, attachments, ground engaging tools and protective wear systems are designed to withstand extreme conditions, significantly reducing downtime and maintenance costs. By customising products to specific operational needs, Enstruc enhances the efficiency and longevity of heavy machinery, ensuring that equipment performs optimally in the most demanding terrain. Whether it’s through advanced steels and wear-resistant materials or precision engineered designs, our products and wear solutions empower construction and mining operations around the globe to maximise productivity while minimising the impact of wear and tear.