New motors promise lower TCO.
The new H1 60 cm³ bent axis motor joins the successful H1 family, complementing the growing range of H1 axial piston pumps.
This latest member of the new series H1 pumps follows in the footsteps of its bigger brothers – the 80 cm³ and 110 cm³ bent axis motors – in offering 32° bent axis technology, zero degree capability and higher overall efficiency. These translate into lower fuel consumption and reduced life-cycle costs.
Typical applications that will benefit from the new H1 bent axis 60cm³ motor are rough terrain forklifts, combines, sprayers, road rollers, wheel loaders and road building equipment.
The new H1 bent axis variable displacement motors are optimised for electrical control and are fully PLUS+1 compliant, enabling seamless integration with Sauer-Danfoss’ electronic machine control architecture. To withstand the harshest working environments, the electrical controls are designed with an IP67 and IP69K rating.
High efficiency
An extensive simulation and testing program for the H1 bent axis motors has resulted in significant improvements in overall efficiency and an extremely low pressure drop within the fluid galleries of the motor. Sauer-Danfoss claim that the H1 bent axis motors have a 6% efficiency gain at maximum displacement (high torque working cycle), compared to the nearest competitor.
Combined with H1 pump efficiencies, this helps improve fuel economy and provides power savings for other vehicle functions, enhancing operating performance and increasing productivity. “To meet increasingly stringent global engine emission standards, OEMs require more effective systems that maximise the utilisation of engine power,” says Branko Horvat, Product Portfolio manager. “The H1 bent axis motor is a core component that will help ensure the success of these new systems.”
Zero degree capability
A key feature of the new H1 motors is their zero degree capability. It provides for seamless ‘on the go’ shifting from 32 to zero degrees, such as in wheel assist applications, providing for a smooth transition with little or no torque interruptions or sudden speed changes. This enhanced control is not only more precise, but also improves the feel of the system during operation. The H1 motor will also shift seamlessly between two speed ranges, for example, work mode and travel mode, regardless of displacement settings.
“The value that zero degree capability brings to the customer is the flexibility in design to meet many machine operating conditions,” says Horvat. “It enables OEMs to offer additional features, such as anti-slip functionality and torque control, which optimise the use of available power and improve productivity.”
Optimised for electrical control
Energy conservation and functional safety is driving the demand for electronic engine management and vehicle control for off-road mobile machinery. As such, H1 bent axis motors have been designed around electrical controls, which allow a range of vehicle control concepts to be produced using the same motor hardware. With electronic control, the H1 system can be optimised to match the requirements of specific vehicle functions by adjusting the software parameters.
Compact design
H1 motors are axially compact and have at least one ‘clean side’, increasing vehicle design flexibility and facilitating installation. The higher speed capability of the motors also results in a high corner power and power density. This provides more power without increasing the size of the motors, enabling OEMs to design more compact system solutions.
For more information contact Ron Sheehan, Sauer-Danfoss, +27 (0)11 803 8390, [email protected], www.sauer-danfoss.com
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