Laurini

TRACK JET is a cutting-edge machine designed and built by Laurini Officine Meccaniche for hydrodemolition and surface removal inside tunnels. Engineered to perform with precision, reliability, and safety, TRACK JET represents a new benchmark in the field of automated tunnel restoration. Specifically developed to remove the superficial concrete layers of tunnel linings, TRACK JET employs one or more high-pressure water jet nozzles mounted on a telescopic boom capable of covering a working arc of 220°. Its fully remote-controlled operation allows a single operator to manage all functions safely from the ground, ensuring maximum control and visibility while minimizing exposure to debris and noise. Thanks to its electric drive system and hydraulic transmission, TRACK JET operates efficiently and silently within enclosed environments, maintaining excellent maneuverability even in confined tunnel sections. The hydraulically operated tracks provide exceptional traction and stability, allowing the machine to operate on variable surfaces and gradients. Equipped with a robust structural frame and precision-engineered components, TRACK JET combines power with technological sophistication. It includes high-performance electric motors, a Danfoss hydraulic system, and a Scanreco remote-control unit, ensuring reliability and user-friendly operation. The system’s modular configuration allows for rapid setup, easy maintenance, and consistent performance in demanding underground conditions. Technical Features - Machine Type: Hydrodemolition unit for tunnel vaults - Operating Weight: 19,000 kg - Power Supply: Electric (24 V system) Electric Drive Motors: - Movement: 1 × ECHTOP MOTOR T3CR 225 S-4 - Translation: 2 × C.F.R. Encoder 80 pulses RT - Hydraulic System: High-efficiency with max pressure of 300 bar - Hydraulic Oil Tank Capacity: 350 liters - Track Width: 700 mm - Remote Control System: Scanreco S0008 - Working Arc: 220° tunnel coverage via telescopic arm - Operational Slope Limits: Within manufacturer’s specified gradients Environmental Limits: - Temperature: –20°C to +40°C - Altitude: up to 2000 m - Relative Humidity: 80% max Performance and Innovation TRACK JET delivers outstanding performance in hydrodemolition, offering superior precision, minimal vibration, and environmentally safe operation without dust or chemical contaminants. The telescopic boom and adjustable nozzles allow targeted removal of deteriorated concrete while preserving structural integrity. Designed for tunnel maintenance, concrete restoration, and structural rehabilitation, TRACK JET ensures clean, controlled, and consistent material removal with minimal operator intervention. Its electric power system makes it particularly suitable for use in enclosed or urban tunnel environments where emission reduction and low noise levels are essential. With its combination of technological excellence, Italian engineering, and focus on operator safety, Laurini TRACK JET stands as the ultimate solution for modern tunnel hydrodemolition powerful, precise, and purpose-built for the future of infrastructure renewal.

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.

SETTANTA is the world’s first machine entirely designed for demolition. Awarded for World Demolition Award 2025, Plant & Equipment category. Equipped with exceptional technical features, it stands out as unique and highly competitive in its field. This name, chosen for our 70th anniversary (1955-2025), represents not only a significant milestone in the history of our company but also a true technological breakthrough in the demolition sector. SETTANTA offers an unparalleled weight/performance ratio. With dimensions like a 25-ton excavator, this machine was built to excel in every aspect of demolition. Thanks to its variable-width undercarriage, the machine’s performance is guaranteed at any point during its 360-degree rotation. Powered by a Scania 5-cylinder engine and a Danfoss hydraulic system, SETTANTA is designed to be a formidable force on demolition sites, delivering high performance, easy transportability, and simplified maintenance. Thanks to our innovative hydraulic quick coupling system, the machine can be equipped with four different interchangeable arms: - Base arm with rearward attachment to maximize stability and working capacity; - Demolition arm with a height of 24.5 mt (81 ft) at the pin and 3 tons (6,600 lb) tool; - Triple arm with a height of 14.5 mt (48 ft) at the pin and 5 tons (11,000 lb) tool, ideal for crushing and shearing operations at ground level; - Telescopic arm with a variable height from 25 to 30 mt (82 – 98 ft) and a 2 tons tool; - Lattice lifting arm with integrated hydraulic winch. Technical Specifications: - Base machine weight: 35 tons (77,100 lb) - Machine width in transport configuration: 2.5 mt (8.2 ft) - Expandable undercarriage from 2.5 to 3.7 mt (8.2 ft – 12.1 ft) - SCANIA DC9 engine with 350 HP - Danfoss hydraulic system with Load Sensing dedicated to the tool, flow rate of 350 liters/minute at 350 bar (85 gal/min – 5075 psi), with booster up to 380 bar (5510 psi) - Automatic lubrication system - Hydraulically tilting cabin with FOPS protection - Camera system

- Modification of existing undercarriages - Manufacturing of completely new undercarriages - Machine operating weight up to 330t - Side members elongation - Side members hydraulic quick connection - Hydraulic widening gauge system Optional - Undercarriage extensions guards - Tracks scrapers

- Newly manufactured high reach demolition front - Demolition booms for machines from 14 to 330 tons (operating weight) - Possibility to interchange demolition and digging booms through hydraulic pins - CE Marking Optionals: - HQCS Hydraulic Quick Coupling System for hydraulic hoses - Telescopic or fixed extensions

Modifying excavators to be used in the sea at a maximum depth of 4 meters to create a trench on the seabed. We designed and built a raised support for the turret and widened the undercarriage to increase stability. Additionally, we reconstructed longer arms to reach the depth required by the client.

The anti-tipping system gives great stability to the whole machine while in demolition configuration.

We designed a system for rotating and guided lowering of the cabin using hydraulic cylinders. The system operates even when the engine is off and can be activated by a remote control. This solution allows the pilot cabin of an excavator to be hydraulically lowered to the ground, enabling a disabled operator in a wheelchair to access it easily and giving them the opportunity to work.

The CAT 6015 Demolition is the largest demolition excavator in Europe, and the largest excavator ever transformed by Laurini: it can reach a maximum working height of 48 meters and an operating weight of 351 tons (compared to 50 tons of a common excavator). The machine is transportable in all its digging and demolition versions using 12 trucks. Main modifications performed on the machine: - Lengthening of the beams - Undercarriage modified for quick-release beams and pistons for self-loading onto the truck bed - Tiltable cabin with certified ROPS and FOPS Roll Bar. - Arms completely redesigned - Additional counterweight + modification of the original counterweight - Hydraulic system modification to add all new functions Usable in different length/height configurations of the arms: - 18 meters with 25-ton tool - 21 meters with 18-ton tool - 30 meters with 16-ton tool - 36 meters with 12-ton tool - 42 meters with 8-ton tool

Cabin conversion with hydraulically tilting or elevating cabin

JOCKER is a patented innovation by Laurini, representing the most advanced solution for the scarification and surface demolition of highway tunnel vaults. Designed to redefine safety, efficiency, and precision, JOCKER stands as a true technological milestone in the field of concrete milling. Positioned along the central axis of the tunnel, JOCKER operates through a telescopic arm carrying a Simex MP 1000 HD milling head, allowing it to work seamlessly across the entire curvature of the vault without interruption. Its automatic guidance system follows the tunnel geometry with extreme accuracy, ensuring uniform milling results throughout the entire working arc. Once the operation is initiated, the advancement proceeds automatically. The operator only supervises the process from a remote and safe position, significantly reducing human exposure and increasing productivity. This high level of automation results in greater hourly output, time savings, and improved operator safety. The hydraulically extendable undercarriage ensures compact transport dimensions and exceptional stability during operation. Powered by a Caterpillar C13 engine delivering 340 kW, and equipped with a dedicated Danfoss hydraulic system, JOCKER guarantees maximum performance, high flow rate, and superior milling precision. Technical Features - Engine: Caterpillar C13 – 340 kW - Milling Head: Simex MP 1000 HD - Drum Size: 1000 mm (length) × 733 mm (diameter) - Maximum Milling Depth: Up to 150 mm (hydraulically adjustable via remote control) - Production Rate: Up to 8 m³/hour (in optimal conditions) - Hydraulic System: Danfoss, with Stiebel 4392.T7.09903 coupler - Control System: Autec remote control for complete machine supervision - Fuel Tank Capacity: 418 liters - Hydraulic Oil Capacity: 800 liters - Maximum Hydraulic Pressure: 350 bar - Electrical System: 24 V with dual 12 V batteries - Total Operating Weight: 32,830 kg (with full tanks) Performance and Innovation Thanks to its telescopic boom, automatic geometric control, and remote operation, JOCKER provides unparalleled efficiency in tunnel maintenance and surface preparation. Its innovative configuration allows continuous work along the vault, without repositioning or manual intervention, ensuring a consistent milling depth and uniform finish. Designed for tunnel rehabilitation, surface removal, and concrete reconditioning, JOCKER sets new standards for productivity, safety, and mechanical precision. With its combination of raw power, intelligent automation, and Italian engineering excellence, Laurini JOCKER is not just a machine—it’s the future of tunnel surface demolition.