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.
Haulotte has added the HT21RT and HT23RTJ to its self-propelled boom line-up. The HT21RT has a working height of 20.6m, up to 15.9m of outreach. It is available in both two-and four-wheel drive versions.
Haulotte has added the HT21RT and HT23RTJ to its self-propelled boom line-up. The HT21RT has a working height of 20.6m, up to 15.9m of outreach. It is available in both two-and four-wheel drive versions.
Sandvik Mining is now using Volvo Penta engines in its underground trucks and loaders. The advanced engines meet Tier 4 Interim/Stage IIIB emission standards and are claimed to reduce fuel and ventilation costs in comparison with other units. The Volvo Penta engineers designed a selective catalytic reduction (SCR) unit in the exhaust system that converts NOx gas into nitrogen and water. The Volvo Penta exhaust-treatment solution also reduces DPM levels without the need for a diesel particulate filter (DPF).
Sandvik Mining is now using Volvo Penta engines in its underground trucks and loaders. The advanced engines meet Tier 4 Interim/Stage IIIB emission standards and are claimed to reduce fuel and ventilation costs in comparison with other units. The Volvo Penta engineers designed a selective catalytic reduction (SCR) unit in the exhaust system that converts NOx gas into nitrogen and water. The Volvo Penta exhaust-treatment solution also reduces DPM levels without the need for a diesel particulate filter (DPF).
