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
