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Greenerd Press & Machine Co. Inc. recently built and delivered three bench type C-frame 40-Ton Hydraulic Straightening Presses, Model HPBS-40, for a major U.S. airplane manufacturer. The presses, designed for straightening wing spar cords, feature electronic joystick ram control, made possible via proportional valve technology, which provides full, precise control of speed and force at any point of the machine's stroke. This enables substantially increased accuracy, repeatability and part throughput while eliminating trial and error via manual operation.
"The ability to have precise control of force applied to the work saves parts, eliminates guesswork and significantly improves manufacturing productivity, all of which are critical in the aerospace industry," said Mike Moran, National Sales Manager at Greenerd.
The Greenerd Straightening Presses also feature a powerful, compact control panel for digital control over press functions. A user-friendly touch screen allows fast, easy entry of set-up parameters. Tonnage and ram position can also be viewed at any position during each stroke.
The presses feature a rugged frame designed to exacting FEA standards, are rated 40 Ton, have a 20" daylight and a 14" stroke. The presses have numerous functions such as pressure reversal, distance reversal, top stop, slow down, bottom stop stroke positions, manual speed control and fixed pendant mounting at the head.
The Greenerd Straightening Presses are also designed with a critical safety function; release of either the joystick or palm button instantly stops the press ram. (The user's free hand must actuate and hold the palm button for the joy stick to be operated.)
