Liebherr demonstrates deep foundation knowledge

At CONEXPO CON/AGG 2017, Liebherr is showcasing its range of machines for the deep foundation industry including the piling rig LRH 600 and the piling and drilling rig LRB 355. Both machines have been especially adapted according to US requirements, and are premiering in North America.

March 8, 2017 Read time: 2 mins

Liebherr LRH 600 Piling

At CONEXPO CON/AGG 2017, 718 Liebherr is showcasing its range of machines for the deep foundation industry including the piling rig LRH 600 and the piling and drilling rig LRB 355. Both machines have been especially adapted according to US requirements, and are premiering in North America.

The crawler crane model LR 1300 with attached fixed leader system, serves as the basic machine for the piling rig LRH 600. In this 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.

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 164 51 meters and a maximum radius of 15 meters with a fixed leader.

The LRB 355 has been especially equipped with a larger undercarriage for the US market, which increases the machine’s already high level of stability.

Another advantage of the new undercarriage is the minimized transport weight. The jack-up system allows the crawlers to be dismantled, resulting in a transport weight of only 42 US tons (38 tonnes) for the basic machine.

The machine’s parallel kinematics provide for a large operating area. Since all winches are mounted directly on the leader, this allows for a direct view from the operator’s cab to the main winch, and ensures the ropes do not move during leader adjustment.

For more information on companies in this article

Liebherr

Liebherr reveals a new range of electric piling rigs and cranes

The battery-powered units offer zero emissions and are quiet in operation, making them ideal for noise-sensitive work sites, especially in urban locations. The batteries are charged using a conventional electric supply, and the machines can work while charging.

In order to change to battery operation, the operator simply takes out the plug while performance remains unchanged. All six models are now available in both conventional and battery-operated versions with identical performance. The LRH 100.1, LB 25, LB 30, LR 1130.1 and LR 1160.1 were previously available with diesel power only but are now offered in electric versions too. However, the LRH 200 is brand new.

The LRH 200 closes the gap between the proven LRH 100 and LRH 600. A 200kWh battery pack ensures that the unplugged models can operate in battery mode for 4-5 hours in average pile driving applications. Optionally, it can be upgraded to 400kWh for 8-10 hours of operation.

The new design of the LRH 200 extends the range of applications. In addition to piling, the machine can be used for continuous flight auger, full displacement and down-the-hole drilling, as well as for soil mixing work. A torque of 250kNm provides the power.

When equipped with the hydraulic hammer H 6 from Liebherr, the LRH 200 and the LRH 200 unplugged can lift piles up to 24.5m long and weighing 16tonnes. The LRH 200 is said to offer a large working range, with a radius of up to 8.7m. The design of the leader enables inclinations of up to 18° in all directions. It is also possible to raise or lower the leader by 6.5m, which makes the machine more versatile.