Raimondi MRT234

The Raimondi MRT234 is a state-of-the-art topless hammerhead tower crane that was officially launched in August 2017. Its debut followed 14 months of intensive development, during which Raimondi’s engineering and design team dedicated seven consecutive months to detailed design work—clocking an impressive 3,200 hours in the process. From the initial conceptual drawings to rigorous final testing, every aspect of the MRT234 was meticulously planned to deliver maximum performance, reliability, and adaptability on modern construction sites.

This crane boasts a maximum lifting capacity of 12 tons, with the ability to handle 2,255 kg at its maximum 70-meter jib tip. The MRT234 offers multiple jib configurations from 28 meters to 70 meters, enabling customization based on site demands. Integrated with Raimondi’s Ultralift system, the crane optimizes intermediate lifting capacities by 10% when activated, ensuring higher productivity on demanding lifts. Without Ultralift, intermediate capacities decrease by roughly 10%.

The MRT234 features high-speed hoisting with dual motor options—37 kW (50 hp) or 55 kW (75 hp)—achieving hoisting speeds of up to 60 m/min with full loads, and up to 120 m/min when handling lighter loads. The hoist drum holds up to 702 meters of 14 mm diameter rope, making it ideal for tall structures and deep foundation projects.

Its slewing mechanism uses twin 80 Nm motors with planetary reduction gearboxes, providing smooth rotation at speeds of 0.26 to 0.8 rpm. The progressive control system automatically adjusts slewing speed based on load and movement requirements, enhancing precision and safety. The trolley system travels along the jib at up to 85 m/min under light loads, ensuring quick cycle times.

Structurally, the MRT234 uses modular jib and mast sections for rapid transport, assembly, and flexible site adaptation. The freestanding height under hook reaches over 60 meters, depending on tower configuration and base setup, which includes concrete pads, traveling bases, steel pad mounts, or embedded foundation designs. Counterweights range from approximately 8 tons to over 12 tons, matched to site conditions and tower height.

Operator comfort and safety are central to the MRT234’s design. The cab is equipped with advanced controls, high-visibility glazing, climate management, and integrated digital load monitoring. Safety features include a load moment limiter, anti-collision interface, over-speed alarms, high-temperature alerts, and built-in hook safety systems. The crane meets stringent European FEM 1.001 and EN 14439 standards for structural integrity and operational safety.

With its combination of advanced technology, operator-focused design, and robust modular construction, the Raimondi MRT234 represents the culmination of Raimondi’s legacy in tower crane engineering. Born from thousands of hours of dedicated design and testing, this crane delivers powerful lifting capabilities, high-speed operation, and the flexible adaptability required on modern, high-rise construction projects.