Dana Rexroth will launch the high-efficiency R2 hydromechanical variable transmission for smaller machines
Dana Rexroth Transmission Systems, the joint venture Dana and Bosch Rexroth, is to launch the R2 hydromechanical variable transmission (HVT). The modular transmission uses both a hydrostatic drive and a mechanical gearbox to deliver fuel savings of up to 25% compared to a torque converter transmission. Designed to work with engine outputs of 134-193kW (180-260hp), the R2 is suitable for use in wheeled loaders, motor graders, lift trucks and a variety of off-highway applications. The hydrostatic drive unit
January 6, 2017
Read time: 1 min
5378 Dana Rexroth Transmission Systems, the joint venture Dana and 2253 Bosch Rexroth, is to launch the R2 hydromechanical variable transmission (HVT). The modular transmission uses both a hydrostatic drive and a mechanical gearbox to deliver fuel savings of up to 25% compared to a torque converter transmission. Designed to work with engine outputs of 134-193kW (180-260hp), the R2 is suitable for use in wheeled loaders, motor graders, lift trucks and a variety of off-highway applications. The hydrostatic drive unit is mounted outside the mechanical gearbox, for ease of maintenance and the combined HVT can be equipped with up to three power take-offs, including hydraulic drive for cooling fans.
JCB will launch 427 and 437 wheeled loaders at Bauma, powered by Stage IIIB/Tier 4 Interim Cummins engines. First seen in prototype form at last year’s Intermat show, the two loaders are powered by the Cummins QSB6.7 engine, which offers a 9.4% increase in torque over the previous model. This drives through a lock-up converter and customers can choose a standard four-speed or optional five-speed transmission, which delivers a 16% drop in fuel consumption. In-cab noise levels have been reduced to just 68dB(A
JCB will launch 427 and 437 wheeled loaders at Bauma, powered by Stage IIIB/Tier 4 Interim Cummins engines. First seen in prototype form at last year’s Intermat show, the two loaders are powered by the Cummins QSB6.7 engine, which offers a 9.4% increase in torque over the previous model. This drives through a lock-up converter and customers can choose a standard four-speed or optional five-speed transmission, which delivers a 16% drop in fuel consumption. In-cab noise levels have been reduced to just 68dB(A
Transmission technology continues to evolve and ZF’s cPower transmission finally serves up a CVT gearbox (Continuously Variable Transmission) suited to wheeled loader use, eliminating the need for a torque converter. Using its experience gained in the agricultural tractor sector, where CVT gearboxes have been in use for over 10 years, the cPower transmission uses a blend of hydrostatics and mechanical drives to split power throughout the entire working speed range with the aim of managing and reducing engin
Transmission technology continues to evolve and ZF’s cPower transmission finally serves up a CVT gearbox (Continuously Variable Transmission) suited to wheeled loader use, eliminating the need for a torque converter. Using its experience gained in the agricultural tractor sector, where CVT gearboxes have been in use for over 10 years, the cPower transmission uses a blend of hydrostatics and mechanical drives to split power throughout the entire working speed range with the aim of managing and reducing engin
