Self-contained servo drive from Voith reduces energy consumption by up to 50%
September 2015
News
Industrial operations in South Africa can save substantially on energy costs, using Voith Turbo’s advanced new closed loop differential pump (CLDP) servo drive. “The drive design is simple,” says Grant Robinson, Voith Turbo VP mining and metals southern Africa. “The heart of the unit is an integrated servo pump consisting of a servo motor and an internal gear pump. Its flow rate is perfectly matched to the surfaces of a differential cylinder.”
Grant Robinson.
The unit also includes intelligent control via fieldbus connection, a pressure limiter, and a small compensating tank. This control system design renders other components, such as expensive valve engineering, unnecessary. “As a result, energy losses caused by throttle effects do not occur with the CLDP. This increases the machine energy savings by up to 50%, compared to machinery using conventional drive systems,” adds Robinson.
The self-contained linear drive combines electromechanical and hydraulic systems, making it compact, dynamic and energy-efficient. Additional benefits include; overload protection, a high power density and virtually wear-free operation.
Robinson indicates that the servo drive is essentially a hydraulic gearbox with an almost unlimited gear ratio, making it ideally-suited for use in applications with high dynamic speed requirements and high power demands.
“Thanks to the integrated servo pump, the energy efficiency is far greater than that of conventional solutions. This also makes it ideal for all direct linear motions, primarily when dynamic response, reproducibility and reliability are needed,” he explains.
The CLDP servo drive can be easily integrated into new or existing machines.
Only the electrical connection for the servo motor is needed. Customers from industries such as oil and gas, energy, mining and metal processing, mechanical engineering, ship building, rail and commercial vehicles can benefit from this advanced technology.
For more information contact Terry-Lynn McIntosh, Voith Turbo, +27 (0)11 418 4000, terry.mcintosh@voith.com, www.voith.com
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