Page 12 - MetalForming August 2019
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Tech Update
New Line of Mid-Tonnage Servomechanical Presses
Building on its pioneering servo-press development and offerings, Komatsu has debuted its H2FM straightside servome- chanical press, designed for superior accuracy and flexibility, according to com- pany officials.
The press, based on the company’s L/E2M-3 series of progressive-die mechan- ical presses, features a center drive with splined shaft connections and a highly rigid frame for low bed deflection. Its new, high-torque, liquid-cooled servo motor reportedly provides higher speed and more energy in pendulum motion than a con- ventional air-cooled servo-drive system. Storage-capacitor technology, derived from technology on Komatsu’s hybrid outdoor excavators, provides a balanced, stable power supply to the servo motor, enabling a nearly 46-percent reduction in the primary power current supplied to the press—a significant energy-saving feature, according to company officials. In addition, the dou-
ble-layered, liquid-cooled capacitors report- edly require only half the space of con- ventional capacitor systems.
To ease operation, in setting slide
motion, an operator needs only to select the slide motion required for the die via a menu on the 15-in. color touchscreen, then enter motion parameters such as speed and dwell, and the position in the stroke where these parameters occur. The press control features Komatsu’s Visual Inspection and Optimizing Motion systems, allowing the operator to see eccentric loads, forward and reverse ton- nage, and slide velocity graphically.
Available is KomTrax web-based soft- ware for monitoring production status. Advanced features include Drive Recorder, which employs digital cameras located in the die space to record misfeeds or other production-halting errors. Along with digital signals and waveforms, these images aid in troubleshooting. KomTrax options enable monitoring of other line components such as coil feeds.
Specifications for the 400-ton H2FM include 600 to 750-mm die height, 250-mm
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10 MetalForming/August 2019
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