Solidifying a growing trend, Wittmann Battenfeld (U.S. office in Torrington, Conn.) will introduce at the Fakuma show in Germany this month its SmartPower series of presses that include servo-driven hydraulic pumps as standard. (Up to now, these have been optional on most lines of hydraulic machines in the industry.) Servo hydraulics are widely reported to be very nearly as energy-efficient as all-electrics but at a lower purchase price.
The new line will be available for delivery from January 2015 in sizes from 25 to 120 metric tons. A 60-ton and a 120-ton model will be operated at the fair, the larger one molding LSR in a four-cavity mold. The SmartPower uses a newly designed servo-hydraulic drive with the braking-energy recovery system used in the EcoPower series. An optional second servo drive is available for the ejector and core pull. The machine also has a simple, central hydraulic clamping system with linear guides for the moving platen.