Greenerd Press & Machine Company (Nashua, NH) designed and manufactured a custom, complex double-moving platen deep draw hydraulic press, fully integrated with two 6-Axis FANUC robots that in addition to load/unload, prompt the press to perform multiple operations required to produce a heavy-duty high-pressure cylinder tank.
The horizontal four-post gib-guided press has a 750-ton cylinder main ram (adjustable down to 150 tons) with a 350-ton cushion (adjustable down to 70 tons). Additional features include:
- A platen that is 113" tall x 112" deep, length is 588".
- An overall machine height is 173" with a daylight maximum open distance of 180".
- A weight of ~300,000 lbs.
- A 108" stroke capability and a 48" draw.
Using a 350-ton cushion to clamp a blank between the main ram and the cushion platen, the main ram of 750 tons pushes the 100 lb./60" blank over a punch which is attached to the stationary platen and coins the part on the top before returning.
The double-moving platen design allows the press to draw the long part at one speed and tonnage, and while still moving, switch to another speed and tonnage to coin the part properly.
To retrieve the newly drawn part out of the press, a FANUC robot moves in between the double platens, and when in position, instructs the press when and at what velocity to extract the part.
For more information, call 800-877-9110; or visit www.greenerd.com.