Telescopic Arm with a Milling Head

The Laurini Milling Arm is a high-performance attachment specifically designed for surface demolition and milling operations in tunnels, infrastructure rehabilitation, and reinforced concrete works. Engineered for maximum precision and stability, this milling arm transforms the Caterpillar 323 excavator into a powerful and versatile milling system thanks to a Telescopic Arm with a Milling Head Capable of 360° Rotation.

Developed by Laurini Officine Meccaniche, the CAT323 milling configuration integrates advanced mechanical design and hydraulic efficiency, ensuring optimal performance in concrete removal and surface profiling applications. With its reinforced boom structure and high-torque milling head, the system guarantees exceptional productivity and control, even under heavy loads.

The arm reaches a maximum working radius of 3,990 mm and a minimum radius of 2,940 mm, with a total working torque capacity exceeding 11,700 kgm. Its design compensates perfectly for the combined forces generated by the milling head (800 kg), operational forces up to 20,000 N, and the arm’s own structure (1,300 kg), maintaining flawless balance and safety throughout the entire working arc.

Thanks to its robust geometry and compatibility with the Simex or Laurini milling heads, the CAT323 arm can handle surface scarification, tunnel lining milling, and concrete reconditioning with extreme accuracy. The structure’s optimized weight distribution and reinforced steel composition provide both strength and vibration resistance, ensuring reliability during continuous operation.

Compact yet powerful, the system is designed for ease of transport, quick installation, and integration with Caterpillar’s hydraulic interface, allowing immediate deployment in demanding construction or rehabilitation sites.

Technical Features

- Base Machine: Caterpillar 323

- Maximum Working Radius: 3,990 mm

- Minimum Working Radius: 2,940 mm

- Milling Force: 20,000 N

- Milling Head Weight: 800 kg

- Arm Weight: 1,300 kg

- Total Working Torque: 11,794 kgm

- Application: Concrete milling, tunnel surface preparation, and structural rehabilitation

Performance and Innovation

Designed for precision milling in confined or curved surfaces, the CAT323 Milling Arm offers an ideal balance between reach, stability, and torque output. It ensures a smooth, consistent cutting path with minimal operator effort and superior control.

Built for tunnel maintenance, road infrastructure repair, and industrial demolition, it represents the perfect combination of mechanical strength, operational safety, and Italian engineering quality that defines the Laurini name.

The Laurini Milling Arm where precision meets power, redefining the standards of concrete surface milling.