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
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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.
JCB has introduced two new soil compactors; the VM117D and the VM137D with operating weights of 11tonnes and 12.2tonnes respectively. The single-drum vibratory compactors can be used for a wide range of work in infrastructure and housing projects and have a smooth drum as standard with pad foot drums as an option. They are powered by JCB’s 93kW Stage IIIB/Tier 4 Interim Ecomax engines, which meet the emissions target without using a DPF and are said to deliver fuel savings of 16%. Changes to the compaction
Engine supplier Yanmar will show a full range of California Air Resources Board (CARB) certified engines at Bauma. The company claims to be the first engine manufacturer to achieve the CARB accreditation across its complete line-up in the 19-56kW (25-75hp) range, and the engines all meet the US Tier 4 Final standard too. The firm will also announce an electronic diagnostic service system called Smart Assist-Direct. The system allows rapid updates of engine software and can automatically retrieve technical s
Engine supplier Yanmar will show a full range of California Air Resources Board (CARB) certified engines at Bauma. The company claims to be the first engine manufacturer to achieve the CARB accreditation across its complete line-up in the 19-56kW (25-75hp) range, and the engines all meet the US Tier 4 Final standard too. The firm will also announce an electronic diagnostic service system called Smart Assist-Direct. The system allows rapid updates of engine software and can automatically retrieve technical s
Synthetic diamond division of DeBeers, Element Six, has developed the 3D Percussive Diamond Insert (PDI) that it claims will radically cut costs in the mining drill industry. The 3D PDI uses the firm’s polycrystalline diamond technology to optimise wear and impact resistance properties, while improving penetration rates for the drill bit. The firm claims that tests of the drill insert show up to 10 times the drill life of a conventional tungsten carbide insert., greatly reducing costly rig downtime for serv
