Excavator Long Reach Boom and Arm with Ce Certificate

The excavator long reach boom and arm is a CE-certified front-end attachment engineered to extend the working range of standard hydraulic excavators. It is widely applied in deep foundation excavation, dredging, slope trimming, and long-distance material handling, delivering reliable reach and structural durability in demanding industrial and construction environments.

Each long reach boom and arm set is supplied as a complete, ready-to-install package. The standard configuration includes the following components:

The table below lists the working dimensions and matching excavator tonnage for each long reach boom and arm model, from LDB120 to LDB450.

• Standard long reach boom: all Q345B steel construction for dependable strength and weldability.
• Heavy duty long reach and excavators above 40 ton: the top and bottom plates use Q690D steel, while the remaining structure uses Q340B steel.

Q345B steel is equivalent to S355 steel in Europe. Q690D steel is equivalent to S690QL steel in Europe.

The internal structure is spaced by vertical and horizontal reinforcement plates at regular intervals, significantly improving torsional rigidity and load-bearing capacity of the long boom and arm.

All steel plates are beveled by a beveling machine before welding, ensuring full penetration welds and consistent joint quality across the entire boom and arm structure.

• Welded with a mixed shielding gas of argon and carbon dioxide — argon content 80%, carbon dioxide content 20%.
• Welded by robotic welding machine for consistent weld quality, uniform penetration, and repeatable structural integrity.