Cincinnati CB Series User guide

OPERATION, MAINTENANCE AND SAFETY MANUAL FOR
@D~@D~IN!I~ifD
CB HYDRAULIC PRESS BRAKES
CINCINNATI INCORPORATED
CINCINNATI, OHIO 45211
EM-234 (FEB 93)

CB HYDRAULIC PRESS BRAKE INDEX
SECTION 1
SECTION 2
SECTION 3
SECTION 4
INSTALLATION 1
LIFTING AND MOVING 1
FOUNDATION 1
CLEANING 1
LEVELING 1
INITIAL LUBRICATION 2
ELECTRICAL CONNECTIONS_3
IDENTIFICATION 4
SAFETY 5
OPERATION 10
STANDARD CONTROLS 10
OPTIONAL CONTROLS 12
INITIAL START-UP OF NEW
MACHINE 13
DAILY START-UP 13
SECTION 6
SECTION 7
MAINTENANCE AND
ADJUSTMENTS __ 23
LUBRICATION 23
HYDRAULIC OIL 23
OIL FILLER-BREATHER 23
CHECKING·&SETTING HYDRAULIC
PRESSURE 24
CYLINDERS 24
PUMP 25
VALVES 26
LEVELING SYSTEM 26
TILT LIMIT SWITCHES 27
MACHINE LEVELNESS 28
SWIVEL END-GUIDE BEARINGS_28
ELECTRICAL 28
TROUBLESHOOTING 28
MAINTENANCE CHECK LIST __ 30
ORDERING REPAIR
PARTS
31,
SECTION 5KNOWING YOUR
PRESS.BRAKE
_14
PERFORMANCE &RATINGS __ 14
PRINCIPLES OF OPERATION _14
TYPES OF DIES 15
PUNCHING CAPACITY 16
STRIPPING CAPACITY 16
ECCENTRIC LOAD CAPACITY _17
OFF-CENTER LOAD CAPACITY _17
STROKE CYCLE TIME 18
SET-UP AND USE 19
INSERTING TOOLING 19
SET MACHINE CONTROLS_ 20
REMOVING TOOLING 20
BENDING TIPS 21
GAGING 21
BLANK DEVELOPMENT 22
ORDERING REPAIR PARTS __ 31
RETURNING PARTS FOR
CREDIT
31
SERVICE 31
© COPYRIGHT 1987 BY
CINCINNATI INCORPORATED

SECTION 1
Upon receipt of your CINCINNATI Hydraulic Press Brake
carefully remove the contents of the one or more packing
boxes shipped with the machine. All of the machine options
and loose parts) such. as wrenches, will be in these boxes.
Check all of the parts received with the packing list.
Claims for shortages or damaged parts should be made
within ten days. Remove all shipping paper from the
wrapped parts of the press brake.
Leave the shipping skids attached to the machine until it
has been moved to its final location.
LIFTING AND MOVING
CINCINNATI CB Hydraulic Press Brakes are readily
handled by cranes of sufficient capacity with chains or
cables adjusted to the proper length for even lifting. Use
a timber brace bet\veen the top of the housings. A typical
hitch is shown in Fi.~re 1.
FIGURE 1
Where crane facilities are insufficient in capacity or are not
available, rig the machine into final location. When rigging
into position, be extremely careful to keep the machine
supported evenly and to guard against tipping.
CINCINNATI INCORPORATED recommends that professional
riggers be employed to handle the machine to ensure
against damage or injury to workers.
If jacks are used to lo·w·er the machine onto the foundation
bolts, care should be taken to prevent twisting of the
machine.
1
INSTALLATION
FOUNDATION
A CINCINNATI CB Hydraulic Press Brake is not a self-
contained machine; that is, the machine must be provided
with a rigid foundation to ensure the preservation of
alignment of the housing and cross framing members. The
foundation must support the weight of the machine without
cracking or settling aut -of -level.
For details of the foundation recommended for your press
brake refer to the Foundation Plan drawing. It is
advisable, particularly in localities where unusual soil
conditions may exist, to have your foundation plan
approved by a local registered civil engineer.
As a final check, before locating the press brake on the
foundation, see that the anchor bolts in your foundation
coincide with the bolt hole spacing in the housing feet.
CLEANING
Thoroughly clean protective grease from all parts of the
machine with solvent. Go over the grease with a rag wet
with solvent and allow to soak. Use rags instead of waste.
A stiff brush will get into the corners. Do not use an
air hose - pressure may drive· dirt and grit into bearing
surfaces. After cleaning thoroughly, wipe dry and make
sure that no grease or grit is left.
With oil, clean and flush the ram guides and slides, wiping
off all excessive oil.
Periodic cleaning of the machine after installation is
advisable.
LEVELING
CINCINNATI Press Brakes are leveled by placing fIat
steel shims of proper thicknesses under the press brake
housing feet as required. Use a precision level - not a
carpenter's or machinist's leveL See Figure 2. Always
wipe level and surface clean before placing level. Give the
bubble of the precision level a half minute to come to
absolute rest.
FIGURE 2

After the machine is level, retighten foundation bolt nuts
securely. Recheck guide and slide alignment.. Do not
remove shims. Alignment may not be permanent. Recheck
level in afew weeks. Do not use any grouting around the
machine. Leave the bed pit empty and cover with steel
plate (175CB x 12, 230CB x 12, 350CB x 10, 12).
This condition is corrected by adding or removing shims
under one of the rear housing feet. In the example, the
excessive clearance was at the right guide and slide. To
bring the alignment into tolerance, shims could be added
under the right rear housing foot or removed from the left
rear housing foot. The alignment must be corrected even
if it causes the bed to be out-of-leveL
RAM GUIDE
RAM CLAMP
(LOOSENED
AND AWAY
FROM GUIDE)
o
o
FIGURE 4
RAM
MEASURE
CLEARANCE
AT TOP AND
BOTTOM
FIGURE 3
Let the machine down and recheck level. Repeat as often
as necessary.
Level the machine lengthwise with the level placed parallel
to the length of the bed and in the center. Raise the
housings with leveling screw as shown in Figure 3. Place
the required flat steel shims under the low housing ~ both
at the front and at the back. .'
Level machine front-to-back with the level crosswise on
the bed, first at the right end of the bed near the housing
and then at the left end. Use jack screw to insert or
remove flat steel shims under rear of both housings as
required. Recheck and repeat until level.
r---------IMPORTANT ---------.
Before running the machine. tighten the
guide clamp bolts to 100 ft.-Ibs.
....--------IMPORTANT------- ........
Do not run the machine until the phenolic spacers
are removed from each ram guide, and the ram
liners have been
installed and properly lubricated.
INITIAL LUBRICATION
Before starting your hydraulic press brake, the following
Iu brication steps should be taken:
Check the ram guide and slide alignment to make sure there
is no twist in the machine. This is done by loosening the
ram clamp bolts until the ram hangs free of the guides.
Measure with a feeler gage the clearance between the ram
slide liner and the ram guide at the top and bottom. See
Figure 4.
Clearance at the top of the right slide· minus clearance at
the bottom of the right slide, must be within .004 of
clearance at the top of the left slide minus clearance at the
bottom of the left slide.
1. Check hydraulic reservoir for proper fluid level (a
sight gage is located on the rear of the tank).
2. The hydraulic reservoir is supplied with a valve.
Before starting the pump, crack this open to drain
any water that . may have collected in the tank during
shipment. If no water comes out, or when oil starts
to come out, close this valve securely. Repeat this
check monthly.
3. Remove the filler-breather neoprene shipping seal from
under the cap.
EXAMPLE:
Left
Clearance
Right
Clearance
4.
Clean exposed portions of the leveling tape.
Since the difference of .030 is greater than .004, there is a
twist in the machine.
At top
At bottom
Difference
.005
-.015
.- .010
.020
-.000
.020
5. Place afew drops of oil on the bottom stroke stop
adjusting screw and on the level adjusting screw.
6. Service clevis pin grease fittings.. Complete
lubrication specifications and schedules are specified in
Section 6, MAINTENANCE AND ADJUSTMENTS.
2

..... --------CAUTION -------- ...
STANDARD PRESS BRAKES ARE DESIGNED
FOR AND SHIPPED WITH PETROLEUM BASED
HYDRAULIC FLUIDS, WHICH
ARE FLAMMABLE.
CHECK APPLICABLE FIRE CODES FOR SPECIAL
PRECAUTIONS.
ELECTRICAL CONNECTIONS
As shown on the Foundation Plan drawing, suitable leads
must be brought to the machine into the electrical control
panel on the right housing. This is the only electrical
connection that is necessary. Be certain that proper
voltage is fed to the press brake, that the lines are of
sufficient capacity and· that a suitable ground conductor is
attached.
3
NOTE: CINCINNATI INCORPORATED CB Hydraulic Press
Brakes are factory wired for 460V/3/60HZ service.
If service is other than this, do not remove
warning tag from the main disconnect or connect
any power to the machine until aCINCINNATI
INCORPORATED
Service Representative inspects
and services the machine.
Do not start the main drive motor until thoroughly
reading the OPERATION section of this manual and
aCINCINNATI INCORPORATED Service Represent-
ative is present.

CB HYDRAULIC PRESS BRAKE
MODEL 175CB SHOWN
SECTION 2
1. FOOTSWITCH
2. BED
3. DIE CLAMPS
4. PALMBUTTON STATION
5. RAM
6. CYLINDER
7. SERVO LEVELING VALVE
8. LEVELING BAND --
9. RAM TILT ADJUSTMENT
10. MAIN CONSOLE
11. SET-UP LIGHT
12.
STROKE CONTROL CAMS
13.
FOOTSWITCH CONTROL
14. LEVELING SCREW
6
4
IDENTIFICATION
10
FIGURE 5
1. RIGHT HOUSING
2. SWIVEL END-GUIDE
3. DRAIN VALVE
4. FLUID
LEVEL GAGE
5. FILLER-BREATHER
6. MAIN DRIVE MOTOR &
PUMP
7. FLOW DIVIDER
8. LEFT HOUSING
9. SLIDE &GUIDE
10. HYDRAULIC MANIFOLD
11. HYDRAULIC RESERVOIR &
HOUSING BRACE
12. TILT LIMIT SWITCHES

SECTION 3
SAFETY RECOMMENDATIONS FOR
HYDRAULIC PRESS BRAKE
OPERATION:
Press brakes manufactured by CINCINNATI INCOR-
PORATED comply with the construction require-
ments of the Occupational Safety and Health Act
and the National Safety Standards of the American
National Standards Institute. CINCINNATI
INCORPORATED also offers update packages for
older press· brakes to assist you in your compliance
and safety programs.
The press brake is a versatile and multi-purpose
machine. We recommend you evaluate each press
brake operation in order to determine the method of
point-of-operation safeguarding which best meets
that operation. TIle press brake, tooling, piece part
and method of feed and removal must be evaluated
for each job before deciding on the· safeguarding to
be used.
CINCINNATI INCORPORATED recommends you
read and understand the safeguarding, use and
care requirements of the American National
Standard for Press Brakes, ANSI B11.3. This is
available from the American National Standards
Institute, 11 West 42nd Street, New York, New York
10036 and is included with this manual.
For additional safety information we recommend:
• Securing applicable safety data sheets from the
National Safety CounCil, 1121 Spring Lake
Drive, Itasca, Illinois 60143-3201.
• Determining your responsibilities under your
state and local safety codes
• Requesting assistance from the loss prevention
department of your workmen's compensation
carrier
Personnel responsible for your press brake operator
training program, tooling set-up, maintenance, and
operations must read and understand this
Operation, Safety and Maintenance manual. No one
should set-up, operate or maintain this press brake
until they thoroughly understand it and know how
to do their job safely. This safety information is not
intended as a substitute for the Operation and
Maintenance sections of this manual.
5
SAFETY
FOR SAFE OPERATION OF YOUR
CINCINNATI PRESS BRAKE
KEEP CLEAR OF THE POINT-OF-OPERATION
The purpose of a press brake is to bend metal and
it is obvious that this same capacity will sever
arms, hands, fingers or any other part of the body
that is in the point-of-operation when the ram is
activated.
During operation, all parts of your body must be
completely clear of the work area. NEVER PLACE
ANY PART OF YOUR BODY IN THE POINT-OF-
OPERATION (Die area).
If operation by more than one person is reqUired,
operator controls must be furnished for each per-
son. If foot controls are used~and your evaluation
of that specific operation indicates safeguarding is
necessary, provide the necessary safeguarding
before any work is performed. (See ANSI B11.3.)
If you use two-hand operator control station(s) ·as
point-of-operation safeguarding, be certain that
they comply with ANSI B 11.3.
If operation by more than one person is reqUired,
one person should be responsible to see that not
only his· own body is clear of the point -of~operation
and all moving parts, but also that his co-workers
are clear and entirely visible in a safe location,
before the press is operated.
During set-up, maintenance or other work on the
machine which necessitates manipulation Within
the point-of-operation, either the ram should be at
the bottom of the stroke or it should be blocked so
the dies cannot close. The power supply should be
disconnected and locked OFF.
CONCENTRATE ON YOUR JOB
Daydreaming, worrying about other problems or
other improper operation of a machine could cripple
you for life. Operating a press brake reqUires your
complete attention. Talking, joking or participating
in or watching horseplay could result in physical
injury to you ... and that is nothing to joke about.
So watch what you are doing and concentrate on
your job.
NEATNESS IS IMPORTANT
Keep the floor of your work area clear of scrap and
trash that could cause you to stumble. Put scrap in

the proper containers and keep stock and finished
work neatly arranged. Be sure slippery surfaces are
cleaned up properly. Stumbling and slipping can
result in painful and perhaps even fatal injuries.
Put all tools and equipment away when you are not
using them. Only the part you are working with
should be on the machine when it is operating.
Even a screwdriver can be deadly if left on the press
brake or lower die.
PROPER TOOLS ARE IMPORTANT
Use the proper tools when working on the press
brake. An improper tool might slip and cause lacer-
ations. When making repairs on the machine, dis-
connect the power source and be sure the ram is at
the bottom of the stroke or blocked in place.
ELIMINATE lOOSE AND FLOWING CLOTHING
Loose or flowing clothes may be comfortable, but if
they are caught on the machine, it could result in
an injury to you. Keep jewelry to a minimum. That
link. I.D. bracelet you got for Christmas could cost
you your hand or finger.
LOOK THINGS OVER CAREFULLY
Before operating your CINCINNATI hydraulic press
brake
t
look to see if your machine is in proper con-
dition. Are the dies worn? Are the machine's covers
and guards securely in place? Is the machine
securely anchored to the floor? Are all nuts, bolts
and screws tight? Is everything in proper operating
condition? If not, report any unsafe condition or
needed repair to your supervisor and be sure the
problem is corrected before beginning operations.
The CINCINNATI hydraulic press brake you are oper-
ating will not produce a tonnage greater than the
maximum rated machine capacity (see capacity
plate). However, when using short or small area dies,
the tonnage must be reduced to avoid damage to the
tooling or the bed and ram of the machine. Too
much tonnage may also cause a die to rupture and
cause injury. If your machine is eqUipped with ton-
nage control, consult the Press Brake Capacities bul-
letin for the load reqUired to do the job. If this is less
than maximum machine capacity, set the control so
not to exceed the required force by more than 100/0.
FOR THE SAFE OPERATION OF
YOUR CI·NCINNATI PRESS BRAKE,
FOLLOW THESE RULES:
1. Never place any part of your body in the point-
of-operation (Die area). Placing your hands or
any part of your body in the point-of-operation
may result in serious injury or amputation.
6
2.. Evaluate each operation to determine the point-
of-operation safeguarding to be used ..
3. Use the point-of-operation safeguarding select-
ed~ or method of operation selected to minimize
the exposure to potential hazards at the point-
of-operation.
4. For small part insertion and removal, use a
hand tooL DO NOT place your hands in the
point -of-operation.
5. Know how to safely operate and adjust your
CINCINNATI press brake. Review the Operation
and Maintenance sections of this manual.
6. Maintain proper lighting levels and eliminate
light glare to prevent eye strain and eye fatigue.
7. Protect your eyes from flying pieces of metal by
always wearing your safety glasses.
8. Always wear safety shoes. A heavy or pointed
piece of stock could fall and cause serious
injury to your foot.
9. Wear snug fitting hand and arm protection
when handling rough or sharp edged stock.
10. Keep die area free of loose tools and materials.
When placing stock in the machine for forming,
be certain the gages and stops are correctly set
and the edge of the stock is against the gages.
11. Stand clear of the workpiece with your arms
slightly extended to avoid being hit if the stock
whips up or down as the bend is made. Be sure
you know how the workpiece will react to the
bend being made. If the workpiece whips-up,
place your thumbs and fingers below the mate-
rial. If the workpiece whips-down~ use the
clamp/stop feature of the machine control so

your hands can be removed from the workpiece
when the bend is made. Set the forming speed
to avoid excessive part ~whip".
12. Releasing the footswitch of your CINCINNATI
press brake will immediately stop or reverse
(depending upon the mode selection) downward
travel of the ram in case of emergency.
13. When you leave the machine, place the ram at
bottom of the stroke or place safety blocks in
position under the ram. Turn OPERATOR CON-
TROL selector to «OFF" and remove the key ..
even if you will be away for only a few minutes.
14. Have the routine scheduled maintenance and
adjustments performed as shown on the
Maintenance Checklist in Section 6.
15. Check alignm~t of the dies before operating the
machine after the dies have been changed or if
the machine has been idle overnight.. Improper
alignment could cause chipping and flying chips
can cause lacerations and eye injuries.
16. Report any cuts, bruises and all other injuries
to your supervisor or the medical department
immediately. They are the best judges of how
serious or minor the nature of your injUry is.
GENERAL GUIDELINES FOR
INSTALLING, REMOVING AND
TRANSFERRING TOOLING (DIES)
Installing, removing and transferring tooling is haz-
ardous and should be done with proper supervision
by experienced set-up men. Improper handling
techniques can cause muscle ,strains, hernias or
serious disabling injUries.
1. Transfer dies using the proper techniques for
the weight of the die{s) being handled:
a. Very light dies (up to 50 pounds) can be car-
ried manually or transferred on a die truck.
b. Dies weighing over 50 pounds or those that
are awkward to move should be handled by a
hoist.
If the punch or die has tapped holes for lifting
attachments, be sure the proper size bolts are
used. A bolt smaller in diameter than the
tapped hole will slip Qut and cause serious
injUry. If no lifting attachments are prOVided ..
use only approved rope slings so the dies will
not be nicked or scratched.
Lift the dies high enough to clear any obstruc-
tions .. but no higher.
7
CAUTION
2. When installing and setting-up dies:
a. Clean the machine and filler block surfaces to
which the dies will be fastened. Always turn
machine OFF and use safety blocks between
the bed and ram when working in this area.
b. Inspect the dies for chips, cracks or other
hazardous conditions. Wipe them off with a
clean cloth.
c. Always place the machine control MODE
selector in the "INCH" position so the ram
can only be cycled by use of palmbuttons.
d. Never reach into or through the die area
when . aligning the dies or setting the gaging.
3. When removing dies from the press brake:
a. Clear the work areas of all stock, containers,
tools and other eqUipment.
b. After placing safety blocks between the dies
and turning OFF the machine, clean both
upper and lower dies using a bench brush
and finally wipe clean with a cloth.
c. Place the machine control MODE selector in
the "INCH" position so the ram can only be
cycled by use of the palmbuttons.
d. Never loosen the ram clamp bolts unless the
dies are in a closed position and the drive
motor has been shut «OFF".
Detailed step-by-step instructions for installing and
removing tooling are provided in the KNOWING YOUR
PRESS BRAKE section of this manual. These instruc-
tions should be followed for safe installation and
removal of tooling from your CINCINNATI press brake.
Also included in the KNOWING YOUR PRESS
BRAKE section of the manual are instructions for
making bends, gaging, blank development and use
of the machine controls.
SAFETY SIGNS
In order that press brake operators and maintenance
personnel may be warned of certain potential haz-
ards that may exist - unless specified procedures are
followed - a number of warning signs are attached to
CINCINNATI Hydraulic Press Brakes. Warning signs

L __ . __ . __ ._ _ __ .. _. . . . . --'
DANGER
DIE AREA
DO NOl REMOVE THIS SIGN FROM THIS MACHINE 2329U
KEEP OUT OF THIS
AREA
WHILE THE
MACHINE DRIVE
MOTOR IS RUNNING
---------- seTUP ----------
•POSITION RAM AT BOTTOM OF WORK~NG STROKE
•TURN OPERATOR CONTROLS
'OFF !kCy lock) WHEN WORKING IN DIE AREA
•
USE·'No·r MODE AND TWO HAND CONTROL
•TO AVOID SPLITTING
DIE. MAKE CERTAIN TONNAGE. CAPACITY OF DIE IS NOT EXCEEDED
•PROVIDE POINT
OF OPERA nON SAFEGUARDING
•TEST
ALL THE REOUIRED OPERATION CONTROL STATIONS. MODES OF OPERATION AND
SAFEGUARDING
•INSTRUCT OPERATORS IN PROPER USE
OF SET·UP
•REMOvE All· KEYS UNDER SUPERVISORY CONTROL
SAFETY GUIDELINES
--------- OPERATION ---------
•USE POINT OF OPERATiON SAFEGUARDING
•KNO\V THt: SET·UP
AND PROPER METHOD Of OPERATION
•TEST ALL THE REOUIRED OPERATOR CONTROL STATiONS AND MODES OF OPERATION
BEFORE EACH 5r1lFT. EACH
JOB RUN. AND AFTER EACH BREAK
•KEEP HANDS OUT OF
OlE AREA (pomt of operatlco)
•DO NOT POSITlON ANY PART OF YOUR BODY WHERE IT MAY BE STRUCK OR CRUSHED BY
PABT MOVEMENT
•USE HAND TOOLS FOR SMALL OR NARROW PIECE PMas
•MAKE CERTAIN EVERYONE IS CLEAR OF PRESS BRAKE. DIES AND MATERIAL BEfORE OPERATING
•TURN OFF OR LOCKOUT OPERATOR CONTROLS WHEN NOT OPERATING PRESS
BRAKE
•WHEN you LEAVE THIS PRESS BRAKE
.-POSITION
RAM AT BOTTOM OF WORKING STROKE
--- TURN OFF OR LOCKOuT OPERATOR COtHROlS
._.. TURN POWER OFF
SAFETY GUIDELINES
HYDRAULIC PRESS BRAKE
•READ AND UNDERSTAND THE OPERATION AND SAFETY MANUAL
•KNOW HOW TO USE THE OPERATOR CONTROLS AND MODES OF OPERA lION
HAZARDOUS AREA
This sign is also attached to the ram adjacent to the
DANGER sign. It provides a checklist of safety con-
siderations which should be observed before, dur-
ing and after operation of the press brake.
This sign warns of a hazardous area between the
machine housings at the rear of the press brake.
The sign is attached to a steel restraining cable
which spans the space between the housings. No
one should enter this area while the machine drive
motor is running or the control is energized.
II
ALWAYS READ AND UNDERSTAND THE
OPERATION, MAINTENANCE AND
SAFETY MANUAL BEFORE
INSTALLING DIES, OPERATING OR
SERVICING THE PRESS BRAKE
TO REDUCE
THE POSSIBILITY OF INJURY • • •
------------------il
I
I
i
~i
"I
I
DO NOT POSITION ANY PART OF YOUR (8 ~ "
BODY WHERE IT MAY BE STRUCK ~~ ",tlt~ .. I
OR CRUSHED BY PART MOVEMENT '" -.....~
DO NOT PLACE YOUR HANDS
IN THE DIE AREA
,··A,DANGER
are not intended to be a substitute for reading and
understanding this Safety section and the machine
Operation and Maintenance manual.
The warning signs are placed at strategic points on
the press brake for the most effective use. It is
intended that they become a permanent part of the
equipment and, therefore, must not be removed, cov-
ered, hidden or defaced. All signs in&talled on the
machine by CINCINNATI INCORPORATED are identi-
fied by.a small six digit part number .in the lower
right corner. If any of these plates become damaged
or defaced, new ones should be ordered by
contacting the factory or the nearest CINCINNATI
Sales and Service Office.
The following illustrations are of the warning signs
most commonly used on the hydraulic press
brakes. Some other signs may be furnished to cover
possible hazards d~ to special equipment or
machine features. The user management should
also include additional warning signs to cover any
hazards that may be presented by customer-added
auxiliary equipment.
This warning sign. is attached to the press brake
ram, which is the most visible location on the
machine. The sign is a reminder to operators or
maintenance personnel that certain procedures
must be followed to prevent serious bodily injury.
: 00 Nor BE MOVE THIS SiGN FROM TtilS PRESS BRAKE
This DANGER sign warns the operator to keep his
hands out of the die area (point-of-operation).
Usually the sign is attached to one end of
CINCINNATI dies, and not on the press brake.
These adhesive backed signs have been furnished
in safety update packages and are available from
CINCINNATI INCORPORATED.
8

GUARD AGAINST TIPPING
The design of hydraulic press brakes is such that
much of the weight is concentrated to the front of
the machine. This sign cautions that the machine
should be guarded against tipping when moving or
installing until it is anchored to the floor. The sign
refers to the Operatorts manual for complete instal-
lation instructions.
o CAUTION 0
THIS MACHINE IS HEAVY IN FRONT-
GUARD AGAINST TIPPING UNTIL
ANCHOR BOLTS ARE SECURED.
COMPLETE INSTALLATION INSTRUCTIONS ARE IN
"OPERATORS MANUAL" PACKED IN PLASTIC POUCH
ON SIDE OF MACHINE.
BEFORE STARTING - LEVEL, CLEAN, LUBRICATE AND
CHECK RAM SLIDES FOR PROPER CLEARANCE AS
DESCRIBED IN "OPERATORS MANUAL"
PRESS BRAKE OPERATOR SAFETY
GUIDELINES
• Be sure you know your press brake - capacity,
controls, operating modes, safeguarding
• Know and understand the job you are about to
perform -material placement, feeding, movement
of material being formed
•Never place your hands in the die area
•Make
sure no one is in backgage area at rear of
machine
•Tooling, press brake and gaging properly set for
the job
• Always cycle the press brake at least twice· with-
out a part in dies before each shift and each job
•Keep die area free of all unnecessary material
and tools
• Do not hang tools on the ram
•
Adequate safeguarding available and used
•Keep your body clear of workpiece
•Keep work area clean and orderly
•Keep alert -Keep your mind on the job
• Hand tools - personal protective devices avail-
able and used
9
•Make certain all persons are clear of machine anc'
material before operating
•When you leave your press brake:
•Place ram
at bottom of stroke or block
•Turn controls "OFF"
•Turn power "OFF"
FAILURE TO FOLLOW SAFE PRESS
BRAKE OPERATING PROCEDURES
MAY RESULT IN SERIOUS INJURY
TO YOU OR ANOTHER EMPLOYEE
SAFETY MAINTENANCE CHECK
•SAFEGUARDING at point-of-operation in proper
adjustment and operating properly
•PINCH POINT guarding properly installed
•OPERATOR CONTROLS working O.K.
•OPERATING MODES functioning properly
•RAM starting and stopping properly
•WARNING PLATES clean and easily read
•ELECTRICAL WIRING in good condition
•CAUTION PAINTING in good condition
•AUXILIARY EQUIPMENT checked - working
properly
•HAND TOOLS and personal protective equipment
in good order - readily available
• SAFETY MANUALS and OPERATOR MANUALS
attached to machine
• SCHEDULED NORMAL MAINTENANCE work
completed
SAFETY IS PART OF YOUR JOB •••
THE MORE ATTENTION YOU PAY TO
DEVELOPING SAFE HABITS, THE LESS
THE CHANCES OF INJURY TO YOU
AND YOUR FELLOW EMPLOYEES

SECTION 4
Before starting your Press Brake the following controls and
their functions should be thoroughly understood.
STANDARD CONTROLS
MAIN CONSOLE (FIGURE 8)
STROKE CONTROL Switch: This is a two position (nON" -
"OFF") key selector operator controL When in the "OFF"
position the ram cannot be stroked.
GROUND CONNECTED Light:- When illuminated this light
indicates that the low voltage A. C. control circuit is
grounded. This is an internal chassis ground - it does not
indicate that the machine is grounded ..
OPERATION Switch: This is atwo position (flRESET" -
"ON") key selector supervisory control. The normal
position of this switch is in the "ON
tt
position.. Whenever a
power loss has occurred-~he switch must be turned to the
"RESET" position and then to the "ON" position before the
main drive motor can be energized.
READY Light: When this light is illuminated it indicates
that the operation control has been reset and the main
drive motor can be energized by depressing the START
button ..
MAIN DRIVE START Button: This is a guarded
pushbutton which is depressed to energize the main drive
motor. When illuminated the main drive motor is energized.
MAIN DRIVE - STOP Button: This pushbutton, 'when
depressed, will de-energize the main drive motor.
MODE Selector: This is a three position key selector
supervisory control consisting of:
INCH: This is a set-up mode that can only be
operated by the use of a palmbutton operator's
station. The ram will run when the operator's station
is activated and stop either on the "DOWN" or "UP"
stroke when the station is deactivated. The ram will
automatically stop at top of the stroke. Release the
palmbuttons and depress them again to start another
cycle.
FIGURE 8
10
OPERATION
SINGLE STROKE - NO AUTO RETURN: This is. a
production mode and can be operated by the palm-
button operator's station or the footswitch -operator's
station. Multiple paltnbutton operator's stations or
multiple foots witch operator's stations can be used in
this production mode but a combination of palmbutton
and footswitch operator's stations cannot be used.
The ranl will run when the operator's station is
activated and stop either on the "DOWN" or "UP"
stroke when the station is deactivated. If multiple
operator's stations are in use) all operator's stations
must be deactivated and· then reactivated before the
ram will resume trnOWN" stroking. The ram will
au tomatically stop at the top of the stroke. All
operator's stations must be deactivated and then
reactivated to start another cycle.
SINGLE STROKE -AUTO RETURN: This is a produc-
tion mode that can only be operated by use of the
three position footswitch operator's station. Multiple
footswitch operator's stations can be used in this
production mode. On the "DOWN" or closing stroke,
the ram will continue to run as long as the station or
stations are depressed. Upon releasing the footswitch
to the "CENTER" position, the ram will stop. Upon
releasing the footswitch to the "UP" position) the ram
will return to the top stroke control setting and stop.
After the ram has passed through the bottom stroke
control setting, with the footswitch fully depressed or
completely released to the "UP" position, the ram will
automatically return to the top of the stroke and stop.
Releasing the footswitch to the nCENTER tt position will
stop the ram. All stations must be deactivated and
then reactivated before the ram will start another
cycle~
DOWN STROKE -SPEED Selector: This is a three position
key selector supervisor) control. The machine is provided
with three "DOWN" or closing speeds (HIGH, PvlEDIUM and
LOW). A combination of any two of. the three· speeds can
be made with this selector. (NOTE: Full tonnage is
available in MEDIUM or LOW speed and approximately 45% of
maximum tonnage is available in HIGH speed.)
DOWN STROKE -STROKE STOP Switch: This is atwo
position ("ON"-
If
OFF
lt
) key. selector supervisory control.
With the STROKE STOP in the "ONn position the ram will
descend when the operator's station is activated,
automatically stopping at a preselected height above the
bottom of the stroke. The operator's station must be
deactivated and reactivated to complete the ram cycle.
PALMBUTTON OPERATOR StATION (FIGURE 9)
FIGURE 9

Two guarded palmbuttons, which must be depressed about
the same time, are provided to activate the ram in either
the "INCHttor "SINGLE STROKE -NO AUTO RETURN"
modes. Releasing either palmbutton will stop the ram.
Both buttons Inust be released and redepressed to restart
ram motion.
EMERGENCY STOP Button: Depressing this push-
button deactivates the main drive motor.
RAM UP Button: This pushbutton, when depressed,
will cause the ram to go up regardless of the motion,
position or previous direction of the ram. The ram
will stop when the button is released or when the top
stop position is reached.
RAM UP -. RAM DOWN Directional Lights: These lights
indicate the direction of motion ( green - UP or
red-DOWN) that the ram is moving or will· move should
an operator station be activated.
OPERATOR STATION Switch: This is a two position
("ONU_HOFF") key selector for activating the palm-
buttons. When in the ttOFF
fJ
position, ram cannot be
cycled by pressing the palm buttons.
STROKE CONTROL CAMS (FIGURE 10)
This control consists of limit switches and mechanically
adjusted cams for controlling the top and bottom ram stroke
limits and speed change point. The bottom stop or lower
reversal point is set by turning hand crank nAft and its
position is indicated by counter nB" and pointer "en. The
counter indicates in inches and thousandths of inches the
distance between the bottom reversal point of ram and the
bed top, minus the closed height of the ram. The top stop
or upper reversal point is set by adjusting cam rod uD"
(with green knob) . The speed change point is set by
adjusting cam rod "En (with yellow knob). The speed
change point is also used for the down stroke stop point
when selected. The .top stop speed change cam· rods are
locked in position by levers "F
n•
FIGURE· 10
11
FOOTS WITCH (FIGURE 11)
This is a guarded, three position operator control which
activates the ram motion in either the "SINGLE STROKE -
NO AUTO RETURNu or "SINGLE STROKE -AUTO RETURN"
modes.
FIGURE 11
The footswitch is made active by turning ON a keylock
selector. switch. The FOOTSWITCH selector is located in a
small electrical enclosure on front of bed (Figure 12). This
selector can be locked OFF to prevent the ram from being
cycled by the footswitch. The FOOTSWITCH selector must
be OFF when the palmbutton controls are being used. A
red indicator light indicates the switch is turned OFF and
an amber light indicates that it is turned ON.
FIGURE 12
RAM TILT ADJUSTMENT (FIGURE 13)
The leveling control is entirely automatic, maintaining the
ram either parallel to the bed or at a predetermined angle
with respect to the bed. A manual control is provided to
tilt the ram (1/2" maximum) in either direction. The
amount of tilt (registered on a graduated collar and
pointer) is the vertical distance that one end of the ram is
above or below the other end at the points of attachment of
the leveling band.

To operate the press brake with the bed and ram parallel,
the graduated collar and pointer should be set to their
"ZERO" marks. Servicing and adjusting the tilt control is
covered in the MAINTENANCE section of this manual.
FIGURE 13
...----------CAUTION---------..
WHEN OPERATING AT THE EXTREME LIMITS
OF STROKE, THE FULL LENGTH OF STROKE
SHOULD· BE REDUCED BY THE AMOUNT ,OF
THE RAM TIL T FOR OPERATION IN A TILTED
POSITION TO PREVENT LEFT PISTON FROM
STRIKING THE TOP OR BOTTOM OF THE
CYLINDER.
The maximum allowable tilt is 112
ft
in the length between
the tape anchor points. If this tilt is exceeded, the
out-of-Ievel limit switches will stop the ram by
de-energizing the main pump motor.
SET-UP LIGHTS (FIGURE 5)
This light'is mounted on front side of the main electrical
enclosure. The green Ughtcomes on whenever the ram is
at the bottom reversal position.
OPTIONAL CONTROLS
UP STROKE - STROKE STOP Switch (FIGURE 14)
This is a two position ("ON"-"OFF
n)
key selector
supervisory control located on the main console. When in
the nON" position the ram will automatically stop immediately
after passing through the bottom reversal point. All
operator controls being used must be released and
reactivated to restart the return stroke of the ram. This
con trol can be used in all modes.
TONNAGE CONTROL
The tonnage control consists of an adjustable selector
mounted on the main console. The maximum tonnage for
"centered
tf
loads is limited by the setting of this selector.
Upon building up to· the pre-selected tonnage, the ram will
automatically reverse from a downward to an upward
direction.
12
Actual forming tonnage in high speed is approximately 45%
of the tonnage control setting.
FIGURE 14
IMPORTANT ---------..
The hydraulic components and machine frame
members are safeguarded against overload by
both a pressure transducer and a relief valve in
the circuit. However, care must be taken to
provide enough area under upper and lower dies
to prevent them from sinking into the bed top or
ram nose due to highly concentrated loads. ThiS
is the shaded area shown in Figure 15. The
minimum area (sq. in.) for each die to prevent
sinking may be calculated by this formula:
MAXIMUM TONNAGE
Die Area = 15
An example for a 135 ton machine: the minimum
die area is 135 divided by 15, or 9 square inches ..
ADDITIONAL FOOTSWITCHES AND/OR PALMBUTTONS
The operation of these controls is the same as the standard
controls. Additional selector switches are provided for
selecting left, right or both controls.
MULTIPLE DEPTH STOPS (FIGURE 16)
With this option a total of four distinct pre-set bottom
reversal points are available. The No. 1 stop is the
standard bottom stop. Stops No.2, 3 and 4 are set by
adjusting micrometer barrels which are added to the bottom
s top cam on the right hand side of the machine. T,he press
brake operator can select which of the four stops he wants
by a portable s~lector switch, which can be moved any
place along the front of the press brake.

FIGURE 15
FIGURE 16
INITIAL START-UP OF NEW
MACHINES
....... -------IMPORTANT ---------a
A CINCINNATI INCORPORATED Service Repre-
sentative should be present during the initial
start-up of your Press Brake. Before starting
the drive motor the following checks should be
made.
A. Installation has been completed per the instructions
given in Section 1 of this manual including:
Foundation
Cleaning
Leveling
Initial lubrication (including oil level and water in
the tank)
Electrical connections and service
B. All options have been installed on the machine.
13
C. The tilt limit switches should be properly adjusted
with the ram and bed parallel (see Section 6 -
MAINTENANCE AND ADJUSTMENT).
D. A complete visual inspection of the machine has been
made.
For the initial start-up of the press brake the main drive
motor should be jogged with the START and STOP buttons
to verify that the direction of its rotation agrees with the
arrow. After this has been done
t
the START button can
be depressed bringing the motor and pump up to full
speed.
Before cycling the ram, a final check of the machine level
should be made and adjusted as described in Section 1 -
INSTALLATION.
Although the operating pressures (main relief and counter-
balance) have. been factory set, they should -now be
rechecked and adjusted if necessary, before further
stroking of the machine. Detailed instructions for setting
these pressures are given in Section 6 of this manual.
All controls, electrical functions, and safety features of the
press brake should now be checked for satisfactory
operation.
Check the level of the bed and ram with a dial indicator as
described in Section 6 of this manual.
Before installing tooling and attempting to make bends,
Section 5 - KNOWING YOUR PRESS BRAKE of this manual
should be read and thoroughly understood.
DAILY START-UP
At beginning of a new shUt, after every break
t
at start of
a new job ,or when machine is started after an extended
off period (several hours or longer) t the following
procedure is recommended:
1. Check reservoir oil level.
2. Let the pump idle for 10 to 15 minutes to warm the
oil.
3. Check controls for proper operation.
4. Verify that all required safety devices and procedures
are being used and are operating properly.
5. Verify that all selectable or adjustable controls are
positioned correctly for the set-up or job to be run.
NOTE: Before the main drive motor can be started,
the main console OPERATION switch must be
turned to "RESET" and back to the "ON"
position. An illuminated READY light indicates
that the motor will start when the START
button is depressed .
The most common reason for inability to start
the main motor is that the ram. has tilted
beyond its limits or that the tilt limit switches
are improperly set. See Section 6 of this
manual for releveling the ram and adjusting
the tilt limit switches.
6. Check for tools, loose material or persons in point-of-
operation or at rear of machine.
7. Know the machine. Thoroughly read this manual and
become . familiar with all of the controls and how they
affect ram motion. Run the machine without tooling
and become familiar with its Ufeel".
8. Be safety conscious. Always follow the safety pre-
cau tions outlined in this manual.
9. Select proper tooling for the job. Make sure the dies
are in good condition.
10. Never place any part of your body in the die area.

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
87
15 7 150
71
21
136
15
3/16- X6'11-
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
87
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- X10' 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" X12'5" 3
37,500
350
CB
1/2- x12' 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 a15%
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.

CYLINDER
RAM
FILLER
BLOCK
LOWER
DIE
UPPER DIE
oZ
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(J)i=
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..J 0
0a.
PISTON
o
BED
BED
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FIGURE 18
FIGURE 19
THROAT: Normally most forming on press brakes is done
between the housings. However, when loltg 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.
CLOSED POSITION: This is the overall height of· the dies
and filler block when ram is at the bottom of the stroke
and is adjusted to make the proper bend. See Figure 19.
DIE PENETRATION: This is the distance the upper die
penetrates the lower die. For a 90° air bend die the
penetration is about 0.4 of the lower die opening.
The . combined height of the dies and filler block when in
the closed position must be more than the closed height but
less than the open heigh t dimension. The difference
between this combined height and the open height is the
maximum amount of stroke which can be used.
FILLER BLOCKS: Various types of filler blocks are
available to hold the lower die. They provide a means of
adjusting and clamping the lower die in position. Filler
blocks are optional and should be selected to suit the
machine tooling and type of bending.
MICROCROWNING: A carefully engineered crown is
machined into the bed and ram of each CINCINNATI press
brake. It is designed so the bed and ram will be parallel
at 2/3 of machine capacity with a uniformly distributed
load. This feature improves bend accuracy under normal
forming loads and minimizes shimming of the dies.
TYPES OF DIES
AIR BEND DIES: These dies are made with sharper angles
than the angle to be formed. The metal being formed
contacts only the point of the upper die and the two edges
of the lower vee die opening. See Figure 20. Thus, all of
the ram pressure is used in· forming and none in squeezing
the metal. Any greater angle than the die angle can be
formed by adjusting the stroke reversal position upward as
required. See the PRESS BRAKE CAPACITIES bulletin
included with this manual for further air bending
information.
AIR BEND
FIGURE 20
15

BOTTOMING DIES: The primary purpose of bottoming dies
is to provide greater accuracy than air bend dies. They
can also be used to obtain a relatively sharp inside corner.
They are made in matched pairs, according to the thickness
of the stock to be formed and radius required. See
Figure 21. These dies require three to ten times as much
pressure as air bend dies. Other types of bottoming dies
are coining dies, used to obtain a sharp inside radius,
multiple bend and channel dies, and radius bend dies.
DIE SETS
Special care should be taken when operating die sets with
guide pins and bushings. The top stop position should be
set so the bushings never leave the guide pins when the
ram makes an UP STROKE. Re-entry of the guide pins
in to the bushings may be difficult, if not impossible.
PUNCHING CAPACITY
CINCINNATI Hydraulic Press Brakes are rated to perform
punching loads up to 66% of the maximum machine capacity
when punching mild steel using self-contained units on an
occasional basis. When punching is to be performed on a
continuous production basis, with dedicated die sets or
high tensile (70,000 PSI) material is to be processed, the
punching capacity is reduced to 50% of the maximum
machine capacity, Figure 23. Additional punching capacity
can be obtained by stepping the punches (Figure 24) on
multiple levels. For special punching applications, where
die sets or special machine features (for example, wide
bed, deep throat, etc.) are required, consult CINCINNATI
INCORPORATED.
BOTTOMING
FIGURE 21
CINCINNATI INCORPORATED can provide many other types
of standard and special dies, some of which are shown in
Figure 22.
MAXIMUM PUNCHING CAPACITY
CB SERIES
TONS/LEVEL
MILD STEEL
HI-TENSILE
90 CB
60
45
135 CB
90
67.5
175 CB
115
87.5
230 CB
150
115
350 CB
230 175
T= METAL THICKNESS
THREE LEVELS
TWO LEVELS
ONE LEVEL
FIGURE 23
MULTIPLE lEVEL PUNCHING
RADIUSCHANNEL
OFFSET
3OR 4
WAY
VEE DIE
FIGURE 24
STRIPPING CAPACITY
A stripping load is a force which occurs on the up stroke
of the ram. The direction of this type of load is down on
the ram and up on the bed (the reverse of forming and
punching loads). Figure 25 shows the maximum stripping
load available at the center of the machine.
HEMMING
FIGURE 22
16

FIGURE 25
ECCENTRIC LOAD CAPACITY
(FRONT-TO-BACK)
Occasionally special forming or punching set -ups are made
which do not have their load centers located on the bed
and ram centerlines. When this condition exists, care must
be taken not to exceed the maximum eccentric
(front-to-back) load capacity of the press brake.
I I
I I MACHINE C
T.
•
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350
LOAD
340
330
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320
VI
310
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40
MAXIMUM
MACHINE ECCENTRIC
SERIES
LOAD CAP.
( INCH-TON)
90 CB
100
135 CB
100
175 CB
200
230 CB
200
350 CB
300
~ -CENTERLINE
L -
LOAD (FORMING OR
PUNCHING) -TONS
d - DISTANCE BETWEEN
MACHINE
tt. &LOAD ~
INCHES
MACHINE
MAXIMUM
SERIES STRIPPING
LOAD (TONS)
90 CB
9.0
135 CB
13.5
175 CB
17.5
230 CB
23.0.
350CB
35.0
MACHINE t
dXL MUST BE EQUAL
TO OR LESS THAN
MAXIMUM ECCENTRIC
LOAD CAPACITY
12
60
48
36
24
12
FIGURE 26
...--------- IMPORTANT --------...
DISTANCE FROM ~ MACHINE TO ~ LOAD
L (IN.)
Exceeding the eccentric load capacity could
damage the slides and guides, sink upper bed
bolts into their counterbores causing bed to
become loose, or overstress upper bed and
die clamp bolts causing them to shatter and
possibly causing injury to personnel.
FIGURE 27
NOTE: The above tonnage ratings are for medium speed.
Off-center load ratings in low speed are slightly
lower for some models.
OFF-CENTER LOAD CAPACITY
(LEFT-TO-RIGHT)
Most forming and punching jobs are located on the
centerline of the machine where the full rated machine
capacity is available. When the load is not located at the
center of the machine only a portion of the total capacity is
available as shown in Figure 27.
17

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 xI
.44 X
8=1
I
.45 X
-=1
I"
DOWN MED.
.85 x
-=1
I
.. 92 X-=II .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 II
TOTAL CYCLE TIME fISEC.
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 xn=II
1.82 X
n=1
I
LOW
4.28 X
n=1
I
6.67 x-=II
UP STROKE
.63 x
8=1
I
.90 X-
=1
I
MACHINE CONSTANT TIME 11.00 ISEC.
OTHER HANDLING TIME II
TOTAL CYCLE TIME I ISEC.
EXAMPLE: 135 CB
DOWN STROKE, HIGH - .44 x2n=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
IISEC.