Cincinnati 175 CB - Knowing Your Press.brake; Performance & Ratings; Principles of Operation

SECTION 5
PERFORMANCE AND RATINGS
KNOWING YOUR PRESS BRAKE
The following charts, graphs and illustra tions emphasize the most important performance capabilities and limitations
of the CB Hydraulic Press Brakes. They are important aids for safe and effective use of these machines.
CB
SPECIFICATIONS
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8
8'-6"
10'
12 GA.X 12'
7/8
13,500
90
CB
10 GA. X 9'
1-1/8
90
40
8
7
15 7 150
71
21
136
15
3/16- X 6'11-
1-1/2
10
10'-6"
12'
1/4- X 5'
2
17,000
8
8'-6"
10'
10 GA. X 13'6-
1-118
16,000
135
CB
3/16- X 10'3-
1-112
135
60
8
7
15
7
136 65 16
122
25
1/4- X 7'6-
2
10
10'-6-
12'
1/2- X 4 'a-
5
19,500
10
10'-6" 12'
3/16- X 13'4-
1-1/2
24,000
175
CB
1/4- X 10'
2
175
75 10
8
17
7
132 65
18
127
30
3/8- X 6'3-
3
12
12'-6"
14'
1/2" X 6'1·
5
28,000
10
10'-6"
12'
1/4" X 12'9-
2
28,500
230
CB
3/8" x 8'2"
3
230
90
10
8
17
7
101
49 14 95
30
12
12'-6-
14'
1/2- X 8'
5
33,000
10
10'-6"
12'
3/8" X 12'5"
3
37,500
350
CB
1/2- x 12'
5 350
140
10
10
18
8
65
33
9
67
30
12
12
1
-6"
14'
3/4· X S'6"
a
44,000
*
The above bending capacities allow for a
15%
reserve of rated tonnage to cover possible increases
in
material thickness, tensile strength and yield strength. See PRESS BRAKE CAPACITIES buffetin for
additonal information on capacity. ,
MEDIUM SPEED TONNAGE ..... CB's can press full tonnage inMEDfUM speed up to six times per minute
continuously. If the motor overheats while pressing in MEDIUM speed, shift to LOW speed during the
working portion of the stroke.
HIGH SPEED TONNAGE - Use of TONNAGE CONTROL is recommended when pressing in HIGH speed_
Detailed machine dimensions are shown on the Foundation Plan drawing.
FIGURE 17
PRINCIPLES OF OPERATION
RAM STROKE: Hydraulic pressure from the motor driven
pump forces the cylinder pistons do\vn or up to move the
ram. The stroke length is adjustable. The maximum
stroke length for each series machine is shown in the chart
above.
TONNAGE CAPACITY: The tonnage on machines is
adjustable from approximately 16% of full tonnage
(depending upon ram speed selected) to full tonnage. The
maximum full tonnage is determined by the size of hydraulic
pump, cylinders and pistons and the limits of the frame
14
design. The machine's capacity plate and the chart above
show the maximum tonnage capacity. Also see PRESS
BRAKE CAPACITI·ES bulletin included with this manual.
DIE SPACE: Each size machine has a fixed amount of die
space to accommodate the dies or tooling. OPEN HEIGHT is
the maximum die space available. It is the distance from
bed top to the ram nose when the ram is at maximum up
stroke position. CLOSED HEIGHT is the minimum. die space
available. It is the distance from bed top to ram nose
when ram is at bottom of the stroke. See Figure 18.