Page 10 - MetalForming July 2011

Tech Update
New Press Technology from Seyi: Direct-Drive Servo Presses, Special Deep Draw Presses
Seyi America, Inc., Tullahoma, TN, has launched a line of single- and double- point servo presses (right) equipped with direct-drive servomotor and control tech- nology that reportedly offer 30 percent high- er torque than other direct-drive servo presses. The state-of-the-art servo direct- drive technology, connected directly to the crank, can maintain the same torque and energy as a mechanical press when the slide position is away from the tonnage rating point. It also optimizes stroke- motion programming flexibility, allowing pen- dulum strokes, multiple hits in one stroke and longer dwell time.
Seyi’s unique energy-storage system, say company representatives, eliminates the issue of higher power requirements and minimizes energy consumption. A honeycomb frame construction maxi- mizes rigidity, particularly at longer dwells. The hydraulic overload has been
removed and replaced with an electronic over- load to optimize resistance to deflection, and ensure repeata- bility at bottom- dead center.
By Q3
2011, the firm
will have ready
for the market
servo presses
from 110 to
400 tons. Learn more
by accessing the firm’s servo- technology blog: servostampingpress- es.blogspot.com.
Seyi also announced the release of its STD special deep-draw presses, for parts to 160 mm high and 100-mm dia.
—oil-filter housings, internal hous- ings of vacuum bottles and other sim- ilar round or rectangular shapes. This unique press (above) is mechanically con- figured to run a three-stage drawing process in one stroke using one die, eliminating the need for large-footprint mechanical-
transfer and hydraulic systems.
The die module is comprised of one combination die with three-stage drawing
8 MetalForming/July 2011
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