Dana Rexroth’s HVT R3 is a hydro-mechanical variable transmission for wheeled loaders with engine outputs of up to 265kW and is the first power split transmission from the joint venture between Dana and Bosch Rexroth.
February 3, 2012
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Dana Rexroth HVT3, live at INTERMAT 2012
2254 Dana Rexroth’s HVT R3 is a hydro-mechanical variable transmission for wheeled loaders with engine outputs of up to 265kW and is the first power split transmission from the joint venture between Dana and 2253 Bosch Rexroth
Using a combination of hydrostatic and mechanical drives, the technologically advanced three-range transmission can offer up a fuel saving of up to 20% by delivering a stepless speed range from 0-40km/hr without clutches and without interrupting the drive.
Cleverly, the HVT R3 will allow the operator to preset a maximum travel speed, or preselect a fixed engine rpm and use the transmission’s characteristics to keep the engine working at its most fuel-efficient point.
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
A new range of safety-focused automatic quick couplers will be launched by Geith at INTERMAT, specifically for mini excavators. The new QC35/40 hydraulic coupler is designed for use on mini-excavators from two- to four tonnes, giving the operator a fully automatic, safe change-over system without having to leave the cab. A patented double pin locking system ensures that the coupler retains the attachment in a safe position even if there is a loss of power, said the firm.
