Mechanical Presses are available in many configurations so it
is important to choose a press that has the features and capabilities
that meets your unique production needs. The typical criteria
used to choose a press includes:
- Die Size
- Force (Torque) Capacity Required
- Energy (Work) Capacity Required
- Actuation Means
- Work Handling Methods.
To assist in the determination of which press is right for you,
Kenco has provided a list of criteria to consider (see Section Criteria).
The industry standard for rating tonnage force on presses 35 tons
or less, is to establish the rating at 1/32” from the bottom
of the stroke. As the point at which the work to be performed increases
from the bottom of the stroke, the available tonnage force of the
press decreases.
The general formula to determine the tonnage required to punch
a blank, is shown below:
Tonnage = ( [linear cutting edge] x [material thickness] x [shear
strength] ) / 2000
|
Example:
A ¾” diameter circular blank is to be punched in 16ga
[0.060”] mild steel [sheer strength = 50,000 lbs]
Tonnage = ( [.75” x 3.14] x [0.060] x [50,000] ) / 2000 =
3.53 tons
* Using a safety margin of 25%, the minimum tonnage required to
perform this operation is 1.25 x 3.53 tons = 4.4 tons.
Call Taber Industries today and
speak with a Kenco Press Specialist to determine which Kenco Press
is right for you!
|
