Overview of Excavator Long Reach Arm with Stone Grab
A purpose-built long‑reach excavator arm paired with a heavy‑duty stone grab, engineered for river embankment construction, revetment placement, and in‑channel rock work. This package extends working radius and precision while minimizing ground disturbance. It is optimized for safe operation from stable platforms, barges, or riverbanks and designed to handle large stone, riprap, gabion filling, and shaped rock placement with controlled release.
Features of Excavator Long Arm Stone Grab
Extended reach design
Long, reinforced boom and stick geometry for maximum horizontal reach and depth access while maintaining stability and hydraulic efficiency.
Reduced structural deflection through high‑strength steel sections and optimized cross‑sectional profiles.
Heavy‑duty stone grab attachment
Two‑ or four‑tine clamshell/grab variants with replaceable hardened tines and wear plates.
Large jaw opening and high clamping force for handling individual boulders, riprap, and stacked stone.
Integrated hydraulic rotation (optional) for accurate orientation and placement.
Precision control
Proportional hydraulic controls and optional electro‑hydraulic or pilot assist systems for smooth, fine movement during delicate placement.
Anti‑swing/anti‑bounce valve packages and flow sharing for simultaneous multi‑function control.
Robust hydraulic system
High‑pressure, cooled hydraulic circuit sized for continuous heavy loads, with filtration, pressure relief, and thermal protection.
Quick‑disconnect hydraulic couplings for fast attachment changes.
Corrosion and abrasion resistance
Marine‑grade coatings, sacrificial wear plates, and sealed pins/bushings to withstand wet, abrasive environments.
Stability and safety features
Counterweight options and boom‑support structure designed to minimize overturn risk.
Integrated limit switches, load‑holding valves, and optional overload warning systems.
Serviceability
Accessible grease points, modular wear parts, and simple replacement procedures to reduce downtime.
Built‑in lifting points and inspection access panels.
Transportability
Folding or modular options for transport by trailer or barge; pin‑and‑link quick‑release joints where practical.
Attachments & Options
Stone grab types
Two‑tine clamshell grab — wide opening, best for large single stones and boulder placement.
Four‑tine grappler — better grip for irregular shapes and stacked riprap.
Bucket with thumb — for mixed material handling and grading.
Grapple with hydraulic rotation — precise orientation of stones.
Contact Details:
Zhonghe Machinery is a big Manufacturer of Excavator Long Arm with Stone Grab
Any interest,
Welcome to contact Aria--sales manager of Zhonghe Machinery.
Whatsapp: wa.me/+8613822325403
Email: aria@excavatorlongarm.com
Website link: www.excavatorlongarm.com
