Sennebogen 7700 Load Chart PDF + Specifications

The Sennebogen 7700 crawler crane is built to handle demanding lifting tasks with precision and reliability. With a maximum lifting capacity of up to 300 tons and powered by a robust 313 kW CAT C11 ACERT diesel engine, the 7700 provides smooth, powerful operation and extended service life even under tough conditions. The crane offers lattice boom configurations with high-strength fine-grain steel construction and pinned joints, ensuring durability and flexibility across various job site requirements.

One standout feature is its compact transport-friendly design—boom sections, including the lower boom section, have a maximum width of 2.43 meters, allowing for easier shipping via flat-rack container transport. Thanks to its self-assembly counterweight system and identical counterweights for both upper and lower carriage (each weighing up to 5 tons), the crane offers efficient logistics and fast setup. Its undercarriage is exceptionally stable, with a 6.8-meter track gauge and reduced ground pressure from flat shoes up to 1,500 mm wide.

The Sennebogen 7700 boasts three rotary drives for maximum operational safety, reduced component wear, and consistent 360-degree lifting capacities due to its square support base. A large-capacity 1,100-liter fuel tank and extensive oil cooling system ensure long-duration, continuous operations. The hydraulic system features a 4-circuit design with variable displacement pumps and energy-saving flow-on-demand control, delivering precise, simultaneous multi-function operation at up to 340 bar pressure.

Operator safety and comfort are further enhanced with the maXcab cab featuring a sliding door, ergonomic air-suspension seat, automatic heating and cooling, wide walkways on boom sections, and a comprehensive diagnostic system. Additional safety highlights include state-of-the-art load monitoring, limit switches, overload protection, and mechanical rope protection systems.

Main and auxiliary winches deliver line pulls up to 220 kN on the first layer, with line speeds reaching 140 m/min. The hoist ropes measure 28 mm in diameter, ensuring long service life and minimal wear. The crane also features fast, powerful boom hoisting systems integrated directly into the superstructure, providing efficient boom raising from 30° to 80° in just 77 seconds. Overall, the Sennebogen 7700 combines power, safety, and operator-focused design to provide exceptional lifting performance in energy, construction, and heavy industrial applications.