Liebherr updates its R922 crawler excavator with more power
Liebherr is launching a revised R922 crawler excavator, replacing the previous R906 and joining the R918 and R926 in the company’s medium weight line-up. Powered by a Stage IIIB Liebherr diesel engine, developing 105kW (143hp), the R922 weighs in at 22 tonnes and designed as a general purpose civils machine. Using a Dual Circuit Positive Control hydraulic system, the excavator is said to consume less energy than previous models, resulting in fuel savings for the customer. The machine on show will be exhibit
February 8, 2013
Read time: 1 min
Liebherr launching a revised R922 crawler excavator
718 Liebherr is launching a revised R922 crawler excavator, replacing the previous R906 and joining the R918 and R926 in the company’s medium weight line-up. Powered by a Stage IIIB Liebherr diesel engine, developing 105kW (143hp), the R922 weighs in at 22 tonnes and designed as a general purpose civils machine. Using a Dual Circuit Positive Control hydraulic system, the excavator is said to consume less energy than previous models, resulting in fuel savings for the customer. The machine on show will be exhibited with a 2.7m dipper arm and LC undercarriage. However even with 600mm track pads the R922 does not exceed the 3.0m overall width for road transport in Europe.
Case’s 12.2tonne 621F wheeled loader will make its first appearance at a European show during bauma. Powered by a second generation common-rail Tier 4 interim engine and benefiting from the use of fuel saving SCR technology, the 621F is said to have proven ZF auto powershift transmission and heavy duty axles. The model is also equipped with a 100% locking front differential for maximum traction and reduced tyre wear. Similar to other larger Case F Series wheeled loaders, the 621F has a cooling pack directly
From German firm Ruthmann comes the new Steiger T 7XX unit, which broadens its height performance access equipment series. Featuring sturdy construction, the unit is said to be both robust and durable with fine-grained steel used to maximise the performance of its telescoping boom. The design is weight-optimised, due to high-strength steel being used during fabrication. Lateral reach and working height capacities have been increased and even under heavy loads, the platform is said to be sturdy and stable. T
From German firm Ruthmann comes the new Steiger T 7XX unit, which broadens its height performance access equipment series. Featuring sturdy construction, the unit is said to be both robust and durable with fine-grained steel used to maximise the performance of its telescoping boom. The design is weight-optimised, due to high-strength steel being used during fabrication. Lateral reach and working height capacities have been increased and even under heavy loads, the platform is said to be sturdy and stable. T
Sennebogen’s new 655 HD heavy-duty cycle crawler crane is one of several innovations on the company’s stand at Bauma. Designed for heavy-duty tasks on construction sites and in the extractive industry, the 655 D can be used with a dragline bucket or in foundation construction. The 55tonne capacity machine can be used with a 3.5m3 Hendrix dragline bucket, for instance, and it uses two 16tonne winches driven by high-pressure regulated variable displacement hydraulic motors. There is a continuously-variable fr
