DEFINITION OF TERMS
PUMP: Motor driven, variable volume, hydraulic
piston pumps provide the flow and pressure for
advancing, retracting and loading the power
cylinders. These pumps are equipped with “load
sensing” controls which precisely match pump
flow and pressure to load demands. This precise
match provides maximum system efficiency.
LINEAR TRANSDUCERS (POTENTIOMETERS):
Each end of the machine is equipped with a high
resolution .0004” (.010mm) transducer. These
transducers continually monitor the ram posi-
tion at each housing. The transducers are shock
resistant and allow normal punching capacity on
these machines.
CONTROL: The machine control provides the high
speed processing logic for the ram position, oper-
ator programming and optional CNC gage. The
control utilizes a 32-bit processor, well known
for it’s use in embedded control applications.
Operator interface is accomplished by means of
a keyboard and an LCD display.
RAM STROKE: Hydraulic pressure from the motor-
driven pump forces the cylinder pistons down or
up to move the ram. The stroke length is
adjustable. The maximum standard stroke length
is shown in the preceding Specifications charts.
TONNAGE CAPACITY: The tonnage on FM
Hydraulic Press Brakes is adjustable from
approximately 5% of full tonnage (depending on
ram speed selected) to full tonnage. The maxi-
mum full tonnage is determined by the cylin-
ders, pistons and the limits of the frame design.
The machine capacity plate and the preceding
chart show the maximum tonnage capacity. Also
see the CINCINNATI Pr
ess Brake Capacities
booklet PT-50691 included with the complete
machine manual.
DIE SPACE: Each size machine has a fixed amount
of die space to accommodate the dies or tooling
and filler block. OPEN HEIGHT is the maximum
die space available. It is the distance from the
bed top to the ram nose when the ram is at max-
imum UP stroke position. CLOSED HEIGHT is
the minimum die space available. It is the dis-
tance from bed top to ram nose when the ram is
at bottom of the stroke. See Figure 4-1.
THROAT: Most forming on press brakes is done
between the housings. However, when long
materials or forming at one end of the machine
is required, the housing throat provides space
for the material. This space is limited by the
depth of throat. Details of the throat are found
on the Throat Layout drawing.
CLOSED POSITION: This is the overall height of
the dies when ram is at the bottom of the stroke
and is adjusted to make the proper bend. See
Figure 4-2.
4-3
LOW / MED.
Inches / Min. * *
MEDIUM FORMING SPEED FOR THE REMAINDER OF THE STROKE.
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