Liebherr LR 1200 Load Chart PDF + Specifications

The Liebherr LR 1200, a 200-ton class hydraulic crawler crane, exemplifies the engineering excellence of Liebherr in the field of heavy lifting machinery. It is driven by the robust Liebherr D 936 A7 SCR diesel engine, which delivers 270 kW (362 hp) at 2000 rpm. The engine meets NRMM emission standards in compliance with EPA/CARB Tier 4i and 97/68 EC Stage IIIB directives, supported by an 800-liter fuel tank that includes a continuous level indicator and reserve warning system. This ensures long operational periods and efficient power management under demanding site conditions.

The crane’s main boom system is hydraulically adjustable and supported by high-performance winches. The main winch system includes a rope diameter of 26 mm and can achieve a rope speed of up to 136 meters per minute. With a 7-layer rope capacity reaching 489 meters, the first layer line pull peaks at 175 kN, while the seventh layer pull maintains 120 kN. The drum diameter is 580 mm, and the winch system incorporates a spring-loaded, multi-disc holding brake for enhanced load security. Additionally, it features a variable flow hydraulic motor for pressure-controlled operation, with an option for a maintenance-free, low-wear free-fall clutch and brake system.

The boom winch allows a maximum line pull of 217 kN and uses a 24 mm diameter rope, capable of boom movements up to 130 seconds across an angle range from 15° to 86°. For auxiliary lifting operations, the luffing jib winch supports a line pull of up to 105 kN and operates with a 20 mm rope diameter. Jib luffing can be achieved within 51 seconds, covering a motion range between 15° and 78°.

The LR 1200 is supported by a crawler undercarriage with 1200 mm wide track pads, propelled by an axial piston motor. The tracks incorporate a spring-loaded multi-disc braking system, hydraulic chain tensioning, and a planetary gearbox with pinion drive. The crane achieves a travel speed between 0 and 1.6 km/h, making it maneuverable on-site while maintaining excellent stability on challenging terrain.

Its hydraulic system is based on a double axial displacement pump, operating in an open loop configuration with a maximum pressure of 350 bar. This setup allows for simultaneous control of all hydraulic functions, with a 650-liter oil tank and monitoring for optimal system performance. The system can operate using synthetic, biodegradable hydraulic oils for environmental compliance.

Swing operations are facilitated by an external tooth roller bearing system, driven by a fixed axial piston hydraulic motor. The swing speed ranges from 0 to 3 rpm and includes both speed-controlled and free-swing options. The crane utilizes a multi-disc holding brake that engages automatically at zero swing speed.

Control is centralized in the in-house developed Liebherr system, which offers advanced diagnostics, load positioning accuracy, and environmental resilience. It features a high-resolution operator monitor with multilingual support, enabling simultaneous movements for complex lift coordination. An optional GSM/GPRS telematics module is available for remote monitoring.

The LR 1200 adheres to EU directive 2000/14/EC for noise emissions, ensuring compliance with outdoor operational standards. Designed for heavy-duty lifting tasks in infrastructure, industrial projects, and civil engineering, the Liebherr LR 1200 stands as a versatile and environmentally conscious solution in the crawler crane category.