Piling Rig LRH 600
The crawler crane model LR 1300 with attached fixed leader system serves as the basic machine for the piling rig LRH 600. In this constellation configuration, the rig enables a diverse range of applications including: piling work with a hammer or vibrator, drilling operations with continuous flight auger or down-the-hole hammer, and various soil improvement methods. At Conexpo, it is displayed with the rotary drive BAT 320 and continuous flight auger.
The leader elements of the LRH 600 allow quick and easy assembly through the pin connections. Stability is ensured by the lattice boom design and through the kicker, secured via supporting tubes at the boom head. The two compensating cylinders ensure that the leader always remains parallel to the upper carriage, and provide the maximum transmission of the torque. Inclination and radius can be adjusted using another pair of cylinders. The LRH 600 achieves an effective working length of 164ft. (51m) and a maximum radius of 50ft. (15m) with a fixed leader. Inclinations of up to 14° backwards and 9.5° forwards are possible due to the superior design of the kinematics. The pull force extends to roughly 132 US tons (120 tonnes).
Free-Fall Hammer H 15 L
In Las Vegas, Liebherr is presenting the hydraulic free-fall hammer H 15 L. The hammer is currently the largest model of three in the new series of working tools, and has a maximum impact energy of 165,952 lbf-ft (225 kNm). The key advantages of the attachment include the modular weights, which allow the hammer can be perfectly adapted to the respective piling requirements. The short, lightweight design of the hammer is extremely efficient, as well as user-friendly in terms of transportation and maintenance. At the same time, the pile helmet is soundproof in the standard version.
The innovative control is perfectly integrated in the system of the Liebherr basic machines. This control allows for better adjustment in accordance with the respective conditions, and thus ensures more efficient operation. The crawler crane LR 1300 or the duty cycle crawler crane HS 895 HD can accommodate the free-fall hammer H 15 L attachment. Since both machines possess a high engine power, the hammer can be operated directly from the on-board hydraulic system, and no additional power pack is required.