Greenerd recently delivered a 15-ton hydraulic press to the Mechanical Engineering Lab of a major state university for powder metal R & D. The primary requirement was for the operator to be able to write numerous press cycle recipes, and easily change any one of 20 variables within one press cycle.
Greenerd developed a simple recipe procedure. The operator selects any of up to 20 variables (program line items), which are then combined to produce a recipe. A recipe defines one hydraulic press cycle from top stop, to the bottom of the stroke, back to the top stop. Variables can include:
This recipe control option is inexpensive utilizing the 4-line display shown here, or when combined with Greenerd’s powerful Touch Screen Control, provides very flexible control options for a wide variety of applications. The Touch Screen Control stores over 100 jobs in on-board memory, so the operator can retrieve any previously run job.
- Main ram top stop, slow down, and reversal set points
- Velocity set points (up to 2 values per recipe)
- Tonnage set points (up to 2 values per recipe)
- Dwell set point
- Ramp time for force and velocity
Greenerd was founded in New England in 1883, and since 1934, has produced thousands of hydraulic presses designed and built to stand the rigors of 3-shift manufacturing.