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Voith Turbo has introduced the Closed Loop Differential Pump (CLDP) linear axis, a compact, dynamic and precise linear drive with applications in machines for bending, separating or forming processes.

It offers customers all the benefits of a hydraulic system, including overload protection, high power density and virtually wear-free operation.

An integrated servo pump, comprising a servo motor and internal gear pump, makes the energy efficiency higher than that of conventional devices.

The drive’s displacement is adapted to the surface of a differential cylinder.

This is added by an intelligent control system with field bus connection, pressure protection and a small compensation tank.

Other components, for example complex valve technology or a hydraulic unit with associated pipes, are no longer necessary.

The device’s compact design and closed oil circuit allow easy systems integration, while onboard intelligence ensures high flexibility during operation.

Possible applications include the quick handling of work pieces or machines for bending, separating and forming processes.

In general, the Voith CLDP can be used for all direct linear movements, especially when the application calls for dynamics, reproducibility, overload protection and reliability.

The CLDP can be easily integrated into new or existing machines – all that is required is a power connection for the servo motor.

Costs for commissioning, training and maintenance are very low.

Attractive aspects for plant operators include increased productivity due to the drive’s speed and higher operating safety due to automatic overload protection.

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