Cincinnati 230 CB - Stroke Cycle Time Calculation

STROKE CYCLE TIME
When estimating the time to make production runs on a press brake. it is necessary to know the stroke cycle,
material handling and gaging times. The stroke cycle time can be determined by using the following charf. If the
DOWN STROKE STOP and/or UP STROKE STOP is used. their estimated time must be added to the stroke cycle
time.
STROKE LENGTH (INCHES)
90 CB
135 CB
175CB
8=1
HIGH
.40 x
I
.44 X
8=1
I
.45 X
-=1
I"
DOWN
MED.
.85 x
-=1
I
.. 92 X
-=I
I
.92 X
-=1
I
STROKE
LOW
2.85 x
- =1
I
3.75 X
-=1
I
3.33 X
-=1
I
UP STROKE
.44 x
8=1
I
.49 X
- =1
I
.47 X
-=1
I
MACHINE CONSTANT TIME 11.00 ISEC.
OTHER HANDLING TIME
I I
TOTAL CYCLE TIME f ISEC.
11.00 ISEC.
I I
I ISEC.
11.00IsEc.
I I
I ISEC.
STROKE LENGTH (INCHES)
230 CB
350 CB
HIGH
.59 x
-=1
I
.92 x
-=\
I
DOWN
STROKE
MED. 1.22 x
n =I
I
1.82 X
n=1
I
LOW
4.28 X
n=1
I
6.67 x
-=I
I
UP STROKE
.63 x
8=1
I
.90 X
- =1
I
MACHINE CONSTANT TIME 11.00 ISEC.
OTHER HANDLING TIME
I I
TOTAL CYCLE TIME I ISEC.
EXAMPLE: 135 CB
DOWN STROKE, HIGH - .44 x 2
n
= I .88 I
DOWN STROKE, LOW - 3.75 x 1" = 13.75 I
UP STROKE - .49 X 3- = 11.47 I
MACHINE CONSTANT = 11.00 I
CYCLE TIME ~ SEC.
18
11.00 ISEC.
I I
I ISEC.