Carver Mini C Instruction Manual

CARVER
®
OPERATION, INSTALLATION AND MAINTENANCE MANUAL
TWO and FOUR POST MANUAL HYDRAULIC PRESSES
HEATED AND UNHEATED
IMPORTANT:
PLEASE READ CAREFULLY BEFORE INSTALLING OR OPERATING THIS EQUIPMENT
CARVER, INC.
1569 Morris Street, P.O. Box 544
Wabash, IN 46992-0544
PH: 260-563-7577 FAX: [phone]

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NOTE: Performance figures stated in this manual are based on a Standard Atmosphere of 59 degrees F. (15 degrees C.)
and 29.92" Hg (10,331 Kg/m) at sea level and using 50 Hz electrical current. All of these factors are important
considerations when selecting a hydraulic press. CARVER, INC. can advise you on proper selection and sizing of
systems for the operating environment at your location.
CARVER, INC. is committed to a continuing program of product improvement. Specifications, prices, appearance, and
dimensions described in this manual are subject to change without notice.
CARVER, INC. 1996
All Rights Reserved.
Part #: 1520.101 (CE ENGLISH) Rev. 05 Effective: 10/10/07

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TABLE OF CONTENTS
SECTION ONE INTRODUCTION ...........................................................................................................1-1
1.1 INTRODUCTION .........................................................................................................................1-1
1.2 ACCESSORIES.............................................................................................................................1-1
1.3 CUSTOMER SERVICE ................................................................................................................1-1
SECTION TWO SAFETY ..........................................................................................................................2-1
2.1 SAFETY CONSIDERATIONS .....................................................................................................2-1
2.2 GENERAL RESPONSIBILITY ....................................................................................................2-1
2.3 OPERATOR RESPONSIBILITY..................................................................................................2-2
2.4 MOLD SETTERS RESPONSIBILITY .........................................................................................2-4
2.5 MAINTENANCE RESPONSIBILITY..........................................................................................2-5
SECTION THREE INSTALLATION ............................................................................................................3-1
3.1 TWO POST PRESS DESCRIPTION............................................................................................3-1
3.2 FOUR POST PRESS DESCRIPTION...........................................................................................3-2
3.2 FOUR POST PRESS DESCRIPTION - CONT.............................................................................3-3
3.3 LAMINATING PRESS DESCRIPTION.......................................................................................3-4
3.4 INSTALLATION...........................................................................................................................3-4
3.5 SETTING UP.................................................................................................................................3-4
3.6 GAUGE INFORMATION.............................................................................................................3-5
3.7 RAM FORCE CALCULATION....................................................................................................3-5
3.8 FILLING THE OIL RESERVOIR.................................................................................................3-6
3.9 GASES OR DUST REMOVAL.....................................................................................................3-6
3.10 CONNECTING UTILITIES..........................................................................................................3-6
SECTION FOUR OPERATION...................................................................................................................4-1
4.1 OPERATOR SAFETY...................................................................................................................4-1
4.2 OPERATING THE HYDRAULIC PRESS ...................................................................................4-2
4.3 DAYLIGHT ADJUSTMENT........................................................................................................4-3
4.4 OPERATING PRESSES EQUIPPED WITH HEATED PLATENS.............................................4-5
4.5 LAMINATING PRESSES.............................................................................................................4-6
SECTION FIVE MAINTENANCE............................................................................................................5-1
5.1 TROUBLESHOOTING.................................................................................................................5-1
5.2 HYDRAULIC UNIT - AIR BLEED PROCEDURE .....................................................................5-2
5.3 ELECTRICAL ...............................................................................................................................5-3
5.4 MOLD SIZE VERSUS TONNAGE CHART................................................................................5-3
SECTION SIX HYDRAULIC OIL ..........................................................................................................6-1
SECTION SEVEN ACCESSORY EQUIPMENT..........................................................................................7-1
SECTION EIGHT CARVER, INC. SERVICES............................................................................................8-1
8.1 TECHNICAL ASSISTANCE........................................................................................................8-1
8.2 RETURNED MATERIAL POLICY..............................................................................................8-1

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SECTION NINE WARRANTY ..................................................................................................................9-2
9.1 WARRANTY RETURNS..............................................................................................................9-2
9.2 WARRANTY.................................................................................................................................9-2
SECTION TEN PICTOGRAM/TAG INFORMATION..........................................................................10-1
SECTION ELEVEN APPENDIX ...................................................................................................................11-1
Hydraulic Unit Drawings - 12 ton, 25 ton ..................................................................................................11-1
Hydraulic Unit - Section View (Typical)....................................................................................................11-1
Hydraulic Unit Drawing - 30 ton................................................................................................................11-1
Gauge Union Coupling Assembly - Typical...............................................................................................11-1
Hydraulic Cylinder - 30 ton........................................................................................................................11-1
Electrical Symbol Cross Reference ............................................................................................................11-1
Electrical Drawings ....................................................................................................................................11-1
Press Assembly Drawings ..........................................................................................................................11-1

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SECTION ONE INTRODUCTION
1.1 INTRODUCTION
We are pleased to supply CARVER Laboratory Equipment for your facility. CARVER presses are used in many
applications including research and development, specialized or low volume development ituations, and quality testing.
Thousands of presses are in use all over the world for numerous applications in the chemical, physical, biological, and
mechanical fields wherever pressing is required.
1.2 ACCESSORIES
CARVER, INC. offers a variety of standard accessories for your press including Heated Platens, Heating and Cooling,
or Cored Platens, Test Cylinder Outfits, French Pressure Cells, Swivel Bearing Plates, and Cage Equipment. All
original CARVER accessories are designed and manufactured by CARVER, INC. These accessories ensure precise
results for many applications, such as oil determination tests in food products, crushing analysis on cement core samples,
molding of plastic quality control specimens, and preparing KBr or tracer pellets, etc.
Each accessory allows you to tailor the hydraulic press to your specific application. In addition to these standard items,
we also manufacture custom presses and accessories for unique applications.
1.3 CUSTOMER SERVICE
The intent of this manual is to familiarize the operator and maintenance personnel with this equipment and help your
organization get the maximum service from your press. If you have any questions regarding installation, service, repair,
custom equipment or applications, please do not hesitate to call or write for the information required. Prices for presses,
accessories, or repair parts will be furnished promptly on request.
NOTICE: If you desire to use a press for an application other than that for which it was purchased, please
contact our factory to verify compatibility of the equipment with the new process. Misapplication of
the equipment could result in injury to the operator or damage to the equipment.

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SECTION TWO SAFETY
2.1 SAFETY CONSIDERATIONS
The terms NOTICE, CAUTION, WARNING, and DANGER have specific meanings in this manual.
ANOTICE is used to indicate a statement of company policy directly or indirectly related to the safety of personnel or
protection of property.
ACAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.
A WARNING indicates a potentially hazardous situation which, if not avoided could result in death or serious injury.
ADANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
This word will be limited to the most serious situation(s).
The term IMPORTANT emphasizes areas where equipment damage could result, or provides additional information to
make a step or procedure easier to understand. Disregarding information marked. IMPORTANT would not be likely
to cause personal injury.
REPORTING A SAFETY DEFECT
NOTICE: If you believe that your equipment has a defect, which could cause injury, you should immediately
discontinue its use and inform CARVER, INC., at our address listed in this manual.
The principle factors, which can result in injury, are:
1. Failure to center the work over the ram in the platen area, resulting in eccentric loading, tilting, and possible
movement of the work piece, which can then become a projectile;
2. Failure to level the top head of the press after it has been repositioned, which can produce the same results as in
Number One, above;
3. Fracture of a specimen or part of the apparatus due to overload, resulting in flying fragments;
4. Occasional squirting of liquid from a pressed specimen;
5. Contact with hot plates or heated apparatus can produce severe burns.
2.2 GENERAL RESPONSIBILITY
NO MATTER WHO YOU ARE...
Press safety is important. Press owners, operators, mold setters, and maintenance personnel must realize that every day,
all day, safety is a vital aspect of their jobs.
If your main concern is productivity, remember this. Loss of production always follows an accident involving a press:
•loss of a skilled operator (temporarily or permanently)

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•breakdown of shop morale
•costly damage to press and/or tooling
•down time.
An effective press safety program is not only humanitarian, but is also economically sound.
Organize a safety committee or group, and hold regular meetings. Promote this group from the management level.
Through this group, the safety program can be continually reviewed, maintained, and improved. Keep minutes or a
record of the meetings.
Hold daily press inspections in addition to regular maintenance checks. You will keep your presses safe for production
and exhibit your commitment to safety.
Please read and use this manual as a guide to molding machine safety. This manual contains safety warnings
throughout, specific to each function and point of operation. It is to promote and increase safe press operation in your
company.
2.3 OPERATOR RESPONSIBILITY
It doesn't end with fast and efficient production. The press operator usually has the most daily contact with the press and
intimately knows its capabilities and limitations.
Plant and personal safety is sometimes forgotten in the desire to meet incentive rates, or through a casual attitude toward
machinery formed over a period of months or years. Your employer probably has established a set of safety rules in your
workplace. Those rules, this manual, or any other safety information will not keep you from being injured while
operating your press.
ONLY YOU can make safety work for you by constantly thinking about what is safe and what is not. It is often the "just
once" that a press operator reaches into a press to remove or adjust material, or rest a hand in the ram area while talking
to a co-worker that results in serious injury.
Learn and always use safe press operation. Cooperate with co-workers to promote safe practices. Immediately report
any potentially dangerous situation to your supervisor or appropriate person.
REMEMBER:
•NEVER place your hands or any part of your body in the mold area or other dangerous locations.
•NEVER operate, service, or adjust press or molds without the appropriate training and first reading and
understanding this manual.
•NEVER try to pull material (either a part or scrap) out of the mold with your hands! If a part sticks in the
mold, stop the press and call your supervisor.
•NEVER place your hands or any part of your body in the mold area or other dangerous locations. In
addition to the crushing hazard presses equipped with heated platens present a hazard of burn from hot
platen and mold surfaces.

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•NEVER operate press without shields in place to protect the operator from the hazards of projectiles from
molds and tooling not centered or improperly mounted, spray of liquids or process material from
improperly filled molds and tooling.
•NEVER pump the manual jack handle without first verifying that the press base bolster has been securely
mounted to a suitable work surface to avoid the potential of the press tipping over while the jack is being
pumped.
•NEVER attempt to open the electrical enclosure of presses equipped with electrically heated platens
without first verifying the electrical power has been disconnected and locked out. This will avoid the
hazard of electrical shock. Access to electrical control components should only be authorized to trained
maintenance personnel following approved procedures.
Before you start the press, check the following:
•remove all maintenance crew equipment from the press area;
•make certain safety blocks are removed from the mold;
•be sure no objects (tools, nuts, bolts, clamps, bars) are laying in the press clamp area;
•carefully look for obstructions left in the mold;
•If your press has been inoperative or unattended, even for a moment, check all settings before starting the
next cycle.
•If your press has multiple platens, be sure ALL floating platens are completely open before reaching into
the clamp area.
•At the beginning of your shift and after breaks, cycle the press several times to verify that the controls,
press parts, molds and auxiliary equipment are functioning properly.
•Keep all safety guards in place and in good repair. NEVER attempt to bypass, modify, or remove safety
guards. Such alteration is not only unsafe, but will void the warranty on your equipment.
•When changing press control settings to perform a different mode of operation, be sure selector switches
are correctly positioned. Test cycle the press to verify it will operate as planned. Locking selector
switches should be adjusted only by authorized persons and the keys removed after setting.
•Do not talk to others while operating a press. If you must talk, stop the press and step away from it until
the conversation is completed.
•DAILY clean the press and surrounding area, and inspect the machine for loose, missing, or broken parts.
•Shut off power to the press when it is not in use. Lock the control panel or disconnect switch in the OFF
position or unplug press from power source.
Report the following occurrences IMMEDIATELY:
unsafe operation or condition
unusual press action
leakage
improper maintenance

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•NEVER stand or sit where you could slip or stumble into the press while operating it.
•DO NOT wear loose clothing or jewelry, which can be caught while operating a press. Also cover or tie
back long hair.
2.4 MOLD SETTERS RESPONSIBILITY
What they sometimes forget is their own safety during the installation or removal of a mold. To successfully perform
this job, the mold setter must gain a good working knowledge of the press, molds, materials, and must know how to use
a mold truck and other handling equipment.
Technical knowledge is not enough. The mold setter's sense of personal safety is crucial. Installing and testing mold
guards and point of operation safety devices is as important as properly mounting the mold to the press.
DON'T FORGET
•NEVER place your hands or other part of your body within the mold area unless the power is OFF to the
press.
•If the press has multiple openings, be sure that ALL floating platens are completely open before installing
tooling.
•NEVER install, adjust, or remove molds without the appropriate training and first reading and understanding
this manual.
•NEVER move molds or service the press with the electric power on.
•Clean bolsters, platens, and molds before installing the mold set. Dirt or foreign materials can cause
misalignment, resulting in operator injury and/or press and mold damage.
•ALWAYS lock out the control panel or disconnect switch in the [OFF] position to prevent unauthorized use
or accidental starting of the press.
•NEVER install worn or damaged molds. Make sure the clamp pressure is properly adjusted, relative to the
mold size (refer to the "Mold Size vs. Tonnage" chart in the Maintenance Section 5.4 of this manual.
•Secure all molds to the mold truck before you move them.
•When clamping molds to the press, use the appropriate number and size of clamps to hold the molds securely
(please consult your mold manufacturer if in doubt about appropriate clamp usage).
•NEVER install molds or tooling in the two post constructed presses that do not result in the clamp force being
centered on the bolsters or platens.
•After installing molds, make all necessary adjustments BEFORE cycling the press.
•Make sure all persons are clear of the press and remove all objects from mold area (tools, nuts, bolts, clamps,
bars) before cycling.
•Watch the press in operation to make sure molds and equipment are working properly.

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•Before the press is used for production, replace all guards and applicable safety devices to protect the operator.
•If the press operator is required to load or unload parts, provide safe and appropriate tools (cotton gloves,
safety tongs, vacuum lifters, pliers, or other mechanical devices) for his or her use.
•When changing press control settings to perform a different mode of operation, be sure selector switches are
correctly positioned. Test cycle the press to verify it will operate as planned. Locking type selector switches
should be adjusted only by authorized persons and the keys removed after setting.
•NEVER change selector switches on the press during a cycle.
•If the press has been inoperative or unattended, even for a moment, check all settings before starting the next
cycle.
Report the following occurrences IMMEDIATELY:
•unsafe operation or condition
•unusual press action
•leakage
•improper maintenance
2.5 MAINTENANCE RESPONSIBILITY
Safety is essential to the good health of both man and machine. If you are a maintenance worker, you must make safety
a priority in order to effectively repair and maintain press equipment.
BEFORE REMOVING, ADJUSTING, OR REPLACING PARTS ON A MACHINE, REMEMBER TO:
•BLEED all pressure from system components (refer to the Maintenance Section of this manual.)
•TURN OFF all air, water, and hydraulic pressure supplies and all accessory equipment at the machine.
•DISCONNECT AND LOCK OUT electrical power and attach warning tags to the press disconnect switch
and air shutoff valve.
•If the press has multiple openings, be sure ALL floating platens are completely open before servicing.
•AVOID contact with hot platen and mold surfaces. Presses equipped with heated platens present the hazard of
burns, verify the heat controls are turned off and the platens and tooling are allowd to cool before servicing the
press.
When you need to perform maintenance or repair work on a press above floor level, use a solid platform, portable
scaffolding lashed to the press, or a hydraulic elevator. If there is a permanently installed catwalk on your press, use it.
The work platform should have secure footing and a place for tools and parts. DO NOT climb on presses or work from
ladders.
If you need to repair a large press component, use appropriate handling equipment. Before you use handling equipment
(portable "a" frames, electric boom trucks, fork trucks, overhead cranes) be sure the load does not exceed the capacity of
the handling equipment or cause it to become unstable.
Carefully test the condition of lifting cables, chains, ropes, slings, and hooks before using them to lift a load.

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Be sure that all non-current carrying parts of electrical apparatus, electrical component enclosures, and the press frame
are correctly connected to earth ground with an electrical conductor, which complies with current codes. Install in
accordance with the national and local codes, which apply.
When you have completed the repair or maintenance procedure, check your work, remove your tools, rigging, and
handling equipment.
Do not restore power to the press until all persons clear the area. Start and run the press until you are sure all parts are
functioning correctly.
BEFORE. you turn the press over to the operator for production, install and adjust all guards and safety devices.

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SECTION THREE INSTALLATION
3.1 TWO POST PRESS DESCRIPTION
CATALOG # 3850CE 3989CE 3851CE 3853CE 3968CE 4120CE 3620CE
3978CE 4350CE 4389CE
MODEL Mini C Mini C Model C Model M 12-10 12-10H Pellet Pellet Model MH
CLAMP FORCE US TONS
Kn
12
106.8 12 106.8 12 106.8 25 222.5 12 106.8 12 106.8
12
106.8
12
106.8 25 222.5
MAXIMUM TEMP °
°°
°F
°
°°
°C
500
650
260
343
N/A
N/A
N/A
N/A
500
650
260
343
500
350
260
343
N/A
N/A
N/A
N/A
650
343
N/A
N/A
N/A
N/A
650
343
PLATENS IN.
MM.
6 x 6
152 x 152 4 DIA. 102 DIA. 6 x 6 152 x 152 9 x 9 228 x 228 10 x 7 254 x 178 10 x 7 254 x 178 4 DIA.
102 DIA.
4 DIA.
102 DIA.
9 x 9
228 x 228
RAM STROKE IN.
MM.
5.125
130 5.125 130 5.125 130 6.5 165 5.125 130 5.125 130 5.50
140
5.75
146
6.5
165
DAYLIGHT
OPENING
UNHEATED
(OPT)HEATED
IN.
MM.
IN.
MM.
.75-7
19-178
0-5.75
0-146
.75-7
19-178
N/A
N/A
.75-18
19-457
0-16.75
0-425
.75-16
19-406
0-14.75
0-374
1-16
25-406
N/A
N/A
N/A
N/A
0-11
0-279
0-5.5
0-140
N/A
N/A
0-5.75
0-146
N/A
N/A
0-12
0-305
FOOTPRINT
W x D
IN.
MM
11 x 16
279 x 406 11 x 16 279 x 406 16 x 15 406 x 381 19 x 19 482 x 482 14 x 16 355 x 406 14 x 16 355 x 406 11 x 16 279 x 406 11 x 16 279 x 406
18 x 19
454 x 482
HEIGHT IN.
MM.
22
558 22 558 36 914 42 1066 37 939 37 939 25 635 22 558
42
1066
WEIGHT
(OPT) HEATED
UNHEATED
lbs
Kg
lbs
Kg
130
59
110
50
N/A
N/A
110
50
170
77
150
68
300
136
275
125
N/A
N/A
300
136
345
156
N/A
N/A
120
54.4
N/A
N/A
115
52
N/A
N/A
300
136
NOISE LEVEL <70db(A) <70db(A) <70db(A) <70db(A) <70db(A) <70db(A) <70db(A) <70db(A) <70db(A)
FULL LOAD
CURRENT -
115V
240V
12.18A
5.84A N/A N/A 12.18A 5.84A 24.34A 11.66A N/A N/A 17.4A 8.34A N/A N/A N/A N/A 24.34A 11.66A
MAX. SYSTEM
PRESSURE -
PSI
bar
7295
503 7295 503 7295 503 9709 669 7295 503 7295 503 7295 503 7295 503 9709 669
N/A = NOT APPLICABLE
NOTE: Model specifications for special order presses are listed in the Appendix attached to this standard model manual

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3.2 FOUR POST PRESS DESCRIPTION
CATALOG # 3969CE 4121CE 4122CE 4123CE 3855CE 4124CE
MODEL 12-12 12-12-2 12-12-H 12-12-2-H 25-12 25-12-2
CLAMP FORCE
US TONS
Kn
12
106.8
12
106.8
12
106.8
12
106.8
25
222.5
25.
222.5
MAX. TEMP. °
°°
°F
°
°°
°C
N/A
N/A N/A N/A 650 343 650 343 N/A N/A N/A N/A
PLATENS IN.
MM.
12 x 12
305 x 305 12 x 12 305 x 305 12 x 12 305 x 305 12 x 12 305 x 305 12 x 12 305 x 305 12 x 12 305 x 305
RAM STROKE IN.
MM.
5.125
130 5.125 130 5.125 130 5.125 130 6.5 165 6.5 165
DAYLIGHT OPENING
UNHEATED IN.
MM.
HEATED IN.
MM.
1-15
25-381
N/A
N/A
2 @ 9
2 @ 228
N/A
N/A
N/A
N/A
0-10
0-254
N/A
N/A
2 @ 3
2 @ 76
1-14
25-355
N/A
N/A
2 @ 9
2 @ 228
N/A
N/A
FOOTPRINT W x D IN.
MM.
18 x 18
457 x 457 18 x 18 457 x 457 18 x 25 457 x 635 18 x 25 457 x 635 18 x 18 457 x 457 18 x 18 457 x 457
HEIGHT IN.
MM.
37
939 37 939 37 939 37 939 37 939 43 1091
WEIGHT
UNHEATED lbs
Kg
HEATED lbs
Kg
460
209
N/A
N/A
795
361
N/A
N/A
N/A
N/A
610
277
N/A
N/A
825
374
490
222
N/A
N/A
810
367
N/A
N/A
NOISE LEVEL <70db(A) <70db(A) <70db(A) <70db(A) <70db(A) <70db(A)
FULL LOAD CURRENT
230V
N/A N/A 21.66A 43.32A N/A N/A
MAX. SYSTEM PRESSURE
PSI
BAR
7295
503
7295
503
7295
503
7295
503
9709
669
9709
669
N/A = NOT APPLICABLE

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3.2 FOUR POST PRESS DESCRIPTION - CONT...
CATALOG # 3856CE 4126CE 3970CE 4127CE 4128CE 4129CE
MODEL 25-12H 25-12-2H 30-12 30-12-2 30-12H 30-12-2H
CLAMP FORCE
US TONS
Kn
25
222.5
25
222.5
30
267
30
267
30
267
30
267
MAX. TEMP. °
°°
°F
°
°°
°C
650
343 650 343 N/A N/A N/A N/A 650 343 650 343
PLATENS IN.
MM.
12 x 12
305 x 305 12 x 12 305 x 305 12 x 12 305 x 305 12 x 12 305 x 305 12 x 12 305 x 305 12 x 12 305 x 305
RAM STROKE IN.
MM.
6.5
165 6.5 165 6 152 6 152 6 152 6 152
DAYLIGHT OPENING
UNHEATED IN.
MM.
HEATED IN.
MM.
N/A
N/A
0-9.5
0-241
N/A
N/A
2 @ 3
2 @ 76
1-17
25-431
N/A
N/A
2 @ 9
2 @ 228
N/A
N/A
N/A
N/A
0-12
0-305
N/A
N/A
2 @ 3
2 @ 76
FOOTPRINT W x D IN.
MM.
18 X 25
457 X 635 18 X 25 457 X 635 18 X 18 457 X 457 18 X 18 457 X 457 18 X 25 457 X 635 18 X 25 457 X 635
HEIGHT IN.
MM.
37
939 43 1091 43 1091 43 1091 43 1091 43 1091
WEIGHT
UNHEATED lbs
Kg
HEATED lbs
Kg
N/A
N/A
640
290
N/A
N/A
840
381
520
236
N/A
N/A
810
367
N/A
N/A
N/A
N/A
650
295
N/A
N/A
840
381
NOISE LEVEL <70db(A) <70db(A) <70db(A) <70db(A) <70db(A) <70db(A)
FULL LOAD CURRENT
230V
21.66A 43.32A N/A N/A 21.66A 43.32A
MAX. SYSTEM PRESSURE
PSI
BAR
9709
669
9709
669
8488
585
8488
585
8488
585
8488
585
N/A - NOT APPLICABLE

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3.3 LAMINATING PRESS DESCRIPTION
CATALOG # 4130CE 4131CE 4132CE
MODEL 150-C 154-M 30-12-L
CLAMP FORCE US TONS
Kn
12
106.8 25 222.5 30 267
MAXIMUM TEMP °
°°
°F
°
°°
°C
500
260
500
260
650
343
PLATENS IN.
MM.
6 x 6
152 x 152 9 x 12 228 x 305 12 x 12 305 x 305
RAM STROKE IN.
MM.
5.125
130 6.5 165 6 152
DAYLIGHT OPENING IN.
MM.
2 @ 3
2 @ 76 2 @ 3 2 @ 76 2 @ 3 2 @ 76
FOOTPRINT W x D IN.
MM.
16 X 18
406 X 459 19 X 19 482 X 482 19 X 19 482 X 482
HEIGHT IN.
MM.
30
761 36 914 42 1066
WEIGHT lbs.
Kg.
190
83 380 166 575 250
NOISE LEVEL <70db(A) <70db(A) <70db(A)
FULL LOAD CURRENT 115V
240V
12.2A
6.1A 24.4A 12.2A N/A 22.6A
MAX. SYSTEM PRESSURE PSI
bar
7295
503 9709 669 8488 585
3.4 INSTALLATION
To assist in the installation and operation of this press, an assembly drawing (including part numbers) is included in the
appendix of this manual.
3.5 SETTING UP
Installation Summary:
•Bolt press to bench. DO NOT pump jack without first securing the presses base bolster to an appropriate work
surface to avoid the hazard of tipping over.
•Rotate gauge and tighten coupling.

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•Remove plug in jack and replace with sintered breather.
IMPORTANT: DO NOT operate the hydraulic unit with the solid shipping plug in the oil fill hole or damage to the
hydraulic unit may occur.
•Verify electrical supply if press is equipped with heated platens.
The CARVER Laboratory Press was carefully designed with a low center of gravity to remain stable under normal
operating conditions. For a permanent installation, hold-down bolts may be used to fasten the press to a workbench.
Holes are conveniently provided in the base directly in front of the columns for this purpose.
If the press is equipped with heated platens, verify the electrical supply and connect the press to the correct voltage
source. The correct operating voltage and current draw information is printed on the ELECTRICAL DATA TAG which
is located on the side of the press.
3.6 GAUGE INFORMATION
This CARVER press features a gauge union coupling for quick and easy alignment and interchangeability. While
holding the coupling swivel to keep it from turning, turn the gauge into the coupling swivel until finger tight and position
it for easy viewing by the operator. Hold the gauge in this position with a 15/16" open end wrench on the stem directly
under the gauge case, and using a second wrench, turn the coupling swivel counterclockwise until tight. If leakage
occurs after tightening the gauge into the union coupling swivel, an additional seal may be required. (See reference
drawing 110478B in the appendix.)
IMPORTANT: DO NOT use more than two (2) seals at one time.
3.7 RAM FORCE CALCULATION
All CARVER gauges are calibrated for the specific ram diameter of the hydraulic unit. The Mini "C" and Model "C"
12-ton (107Kn) ram is 3.294 square inches (21.253 square cm) and the Model "M" 25-ton (223 Kn) ram area is 5.157
square inches (33.273 square cm). The standard gauge readings display the load, or force, in pounds as well as metric
tons applied between the platen and head of the press. Accordingly, all calibrations show the load in pounds-force
applied by the press to the material being pressed. For example: a 10,000 lb. (44480n) load applied to material having
an area of one square inch (one square mm) would be equal to a pressure of 10,000 lbs. per square inch (44480 Newtons
per square mm) applied to the material. Or, if the material being pressed has an area of four square inches (258.08
square mm) a 10,000 lbs. (44480 Newton) applied load would be equal to 2,500 lb. per square inch (172.35 bar) on the
material.
EXAMPLE: 10,000 lbs. FORCE (44480 Newtons) = 2,500 PSI (172.35 bar)
4 square inches (258.08 square mm)
CARVER gauges are highly sensitive, precision instruments. Care should be taken to avoid sudden decompression,
shock loading, over-pressurization, etc., which will result in damage to the gauge and void the warranty.
A variety of standard gauges are available with different calibrated ranges. The standard gauge provided with your press
is calibrated for full press tonnage. If an additional gauge is required, for a lower operating range, a CARVER 2096CE
Two-Gauge Manifold will permit simultaneous mounting of two separate gauges.

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3.8 FILLING THE OIL RESERVOIR
The hydraulic unit is filled with oil at CARVER, INC. and should not require additional oil. In the event there is some
oil loss, lower the platen, remove the sintered breather plug, and fill with oil up to the level of the filler hole on 12 & 25
(107 & 223 Kn) ton models. Fill 30 ton (267 Kn) pump up to within 2" (50mm) of top of reservoir. Only special
CARVER # 2170 Hydraulic Fluid, or a brand name filtered HYDRAULIC JACK OIL, should be used. Refer to
Section 6 for recommended substitutes.
IMPORTANT: Brake fluid and similar products may damage your unit and will void the warranty.
3.9 GASES OR DUST REMOVAL
If the product you use in the press produces dust or gases that could be harmful to the operator, attach an exhaust system
to the press. This can be done by either attaching the exhaust vent to the top of the guard housing or by cutting a hole in
the back of the guard housing and attaching the exhaust vent over the cutout. The cutout must be completely covered.
Airflow will then be drawn up, around the material, and out through the top of the press.
3.10 CONNECTING UTILITIES
1. Electrical Connection
CARVER presses that have electrical devices are supplied with a disconnect switch or disconnect plug. Connect main
power to the press through the disconnect.
CAUTION: On presses with thermostat control, customer is to provide short-circuit protection based upon the
electrical nameplate current draw.
The voltage, phase and current draw information are listed on the serial number tag. Line voltage must be within ± 10%
of the voltage listed on the serial number tag or damage may occur. Phase imbalance must be within 5%.
Fulfill all national, state, and local safety and electrical code requirements.
The power drop must include a ground wire.
WARNING: CONNECTION SHOULD ONLY BE MADE BY A QUALIFIED ELECTRICIAN.
2. Water and Air Inlet Connections
If your press is equipped with cooling plates, then it will be necessary to connect the supplied Teflon lined stainless steel
hoses to your plant air and water supplies. Each platen comes with an inlet and outlet hose attached. Determine which
side of the platens you will use as the inlet. For this explanation the right side when facing the press will be considered
the inlet side and the left the outlet side. The hoses are Teflon lined stainless steel, with a 3/8 inch NPT female fitting,
on the end.
Each inlet hose will be used to supply water, air and water/air mix to the platen it is connected to. For this reason, the
inlet hoses should be connected to a common manifold with the plant air and water supply connected to the manifold.

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WARNING: CHECK VALVES SHOULD BE INSTALLED IN BOTH WATER AND AIR LINES TO
PREVENT CONTAMINATING EITHER SUPPLY LINE WITH THE OTHER.
The addition of shutoff valves in both water and air lines will facilitate operation and maintenance.
IMPORTANT: After cooling with water, residual water should be purged from the platen cores with compressed air
before the next heating cycle.
The air supply should be a clean, dry, regulated compressed air source.
IMPORTANT: Verify that the water pressure is greater than the air pressure or the water will not enter the platen
cooling channels. Set regulator below water pressure.
The following is to be used when determining the cooling medium required for the temperature being used.
AIR ONLY when temperature is above 600°F (315°C)
AIR/WATER MIX when temperature is between 600°& 350°F (315°& 177°C)
WATER ONLY when temperature is below 350°F (177°C)
3. WATER AND AIR OUTLET CONNECTIONS
Each outlet hose will be used to drain the water, air and water/air mix from the platen it is connected to. The outlet
hoses can be connected to a common manifold or separately connected to the plants drain system.
The outlet manifold or hoses must be connected to a drain vented for steam with a steel pipe.
4. STEAM CONNECTIONS
Each steam heated platen is equipped with an inlet and outlet flexible metal hose for steam heat connections. The
customer is to connect one hose of each platen, on the same side, to a steam source and the other hoses, opposite side, to
a drain line, preferably through a steam trap.
IMPORTANT: Do not vent steam line with copper or plastic. Use only steel pipe and install to standard steam
specifications.
The outlet manifold must be plumbed downward to drain the platens properly. If the manifold is plumbed upward,
CARVER, INC. recommends the use of a check valve to eliminate backflow into the platens and a pump to recirculate
the drain water.
CARVER, INC. will not guarantee proper cooling if the drain is not plumbed according to CARVER, INC.
recommendations.
A pressure gauge and regulator are recommended components for your plant air supply.
A manual shutoff valve in each line will aid in future maintenance procedures.

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SECTION FOUR OPERATION
4.1 OPERATOR SAFETY
1. Before closing the press be sure all shields are installed and doors or gates are fully closed..
2. The operator should wear safety glasses or a face shield when performing operations under high load
conditions to prevent eye or face injury should a test specimen burst and scatter.
3. When using caustic or acid test specimens, a face shield, apron, and rubber gloves should be used for the
protection of the operator.
4. The testing apparatus or test specimen must be centered on the press platen. This will prevent tilting of the
platen and possible ejection of the work piece under pressure. Always avoid uneven loading of the press
components. Locator plates are available from CARVER, INC. upon request.
5. CARVER, INC. recommends bolting the press to a work table whenever possible to avoid the hazard of
tipping over the press when pumping the manual jack handle.
WARNING: The use of an extension handle longer than provided with the standard press may cause the press to be
unstable, and may cause an "over pressure" condition, resulting in damage to the hydraulic unit.
CAUTION: When using a press with hot plates, gauntlet gloves should be worn to protect the forearms and hands.
Steam can be released from a specimen when pressure is applied.
6. When the top head has been repositioned, the height on both sides must be measured to be sure that the head
bolster is parallel with the base.
CAUTION: CARVER recommends the use of safety glasses while operating this equipment.
7. Always check the pressure rating of the pressed apparatus prior to pressing to be sure it is rated for the applied
pressure.
IMPORTANT: The gauge on the CARVER laboratory press shows the total force exerted by the press. It DOES
NOT show the pressure on the specimen (PSI/BAR). To find the PRESSURE (P) on the specimen,
the observed FORCE (F) reading on the gauge must be divided by the specimen AREA (A), per the
equation P = F/A. When using a CARVER test cylinder outfit, use the ID measurement to find the
actual AREA (A) of the specimen. (See Section 3)
8. To protect against squirting fluid, the apparatus may be placed inside a can or wrapped in a cloth.

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4.2 OPERATING THE HYDRAULIC PRESS
Before attempting to operate the hydraulic unit, make certain that the release valve screw is closed finger tight.
IMPORTANT: DO NOT rotate the release valve more than one full turn in the counterclockwise direction.
30-ton (267 Kn) models are equipped with a lever rather than a knob. The cam release lever should be in the vertical
position before the press is closed.
Opening the release valve approximately one-half turn releases the pressure and allows the platen to open. The release
valve is equipped with a mechanical stop to prevent the valve from being turned out to far. Pulling the cam release lever
toward the operator to the horizontal position will allow the clamp on 30-ton (267 Kn) models to open. It may be
necessary to push the platen down by hand when the press is new. After a short period of use, the platen will return
under its own weight.
Please keep in mind that no hydraulic unit will maintain constant pressure without some additional pumping. This is
especially true when pressing against a soft or yielding material. Some pumping is required to offset normal packing
leakage. After the desired pressure is obtained, an occasional stroke or two will normally maintain the pressure.