ESAB PT-37 Plasma Cutting Torch when used User manual
- Category
- Welding System
- Type
- User manual
This manual is also suitable for
PT-37 Plasma Cutting Torch
when used with the ESP-50 Plasma Cutting System
Instruction Manual
0558008757 05/2011
2
This equipment will perform in conformity with the description thereof contained in this manual and accompa-
nying labels and/or inserts when installed, operated, maintained and repaired in accordance with the instruc-
tions provided. This equipment must be checked periodically. Malfunctioning or poorly maintained equipment
should not be used. Parts that are broken, missing, worn, distorted or contaminated should be replaced imme-
diately. Should such repair or replacement become necessary, the manufacturer recommends that a telephone
or written request for service advice be made to the Authorized Distributor from whom it was purchased.
This equipment or any of its parts should not be altered without the prior written approval of the manufacturer.
The user of this equipment shall have the sole responsibility for any malfunction which results from improper
use, faulty maintenance, damage, improper repair or alteration by anyone other than the manufacturer or a ser-
vice facility designated by the manufacturer.
BE SURE THIS INFORMATION REACHES THE OPERATOR.
YOU CAN GET EXTRA COPIES THROUGH YOUR SUPPLIER.
These INSTRUCTIONS are for experienced operators. If you are not fully familiar with the
principles of operation and safe practices for arc welding and cutting equipment, we urge
you to read our booklet, “Precautions and Safe Practices for Arc Welding, Cutting, and
Gouging,” Form 52-529. Do NOT permit untrained persons to install, operate, or maintain
this equipment. Do NOT attempt to install or operate this equipment until you have read
and fully understand these instructions. If you do not fully understand these instructions,
contact your supplier for further information. Be sure to read the Safety Precautions be-
fore installing or operating this equipment.
CAUTION
USER RESPONSIBILITY
READ AND UNDERSTAND THE INSTRUCTION MANUAL BEFORE INSTALLING OR OPERATING.
PROTECT YOURSELF AND OTHERS!
3
TABLE OF CONTENTS
Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Safety - English. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Safety - Spanish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Safety - French . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Installation & Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Section / Title Page
4
TABLE OF CONTENTS
5
SAFETY PRECAUTIONS
Safety Precautions
Safety - English
WARNING: These Safety Precautions are
for your protection. They summarize pre-
cautionary information from the references
listed in Additional Safety Information sec-
tion. Before performing any installation or operating
procedures, be sure to read and follow the safety precau-
tions listed below as well as all other manuals, material
safety data sheets, labels, etc. Failure to observe Safety
Precautions can result in injury or death.
PROTECT YOURSELF AND OTHERS --
Some welding, cutting, and gouging
processes are noisy and require ear
protection. The arc, like the sun, emits
ultraviolet (UV) and other radiation
and can injure skin and eyes. Hot metal can cause
burns. Training in the proper use of the processes
and equipment is essential to prevent accidents.
Therefore:
1. Always wear safety glasses with side shields in any
work area, even if welding helmets, face shields, and
goggles are also required.
2. Use a face shield tted with the correct lter and
cover plates to protect your eyes, face, neck, and
ears from sparks and rays of the arc when operating
or observing operations. Warn bystanders not to
watch the arc and not to expose themselves to the
rays of the electric-arc or hot metal.
3. Wear ameproof gauntlet type gloves, heavy long-
sleeve shirt, cuess trousers, high-topped shoes,
and a welding helmet or cap for hair protection, to
protect against arc rays and hot sparks or hot metal.
A ameproof apron may also be desirable as protec-
tion against radiated heat and sparks.
4. Hot sparks or metal can lodge in rolled up sleeves,
trouser cus, or pockets. Sleeves and collars should
be kept buttoned, and open pockets eliminated from
the front of clothing.
5. Protect other personnel from arc rays and hot
sparks with a suitable non-ammable partition or
curtains.
6. Use goggles over safety glasses when chipping slag
or grinding. Chipped slag may be hot and can y far.
Bystanders should also wear goggles over safety
glasses.
FIRES AND EXPLOSIONS -- Heat from
ames and arcs can start res. Hot
slag or sparks can also cause res and
explosions. Therefore:
1. Remove all combustible materials well away from
the work area or cover the materials with a protec-
tive non-ammable covering. Combustible materials
include wood, cloth, sawdust, liquid and gas fuels,
solvents, paints and coatings, paper, etc.
2. Hot sparks or hot metal can fall through cracks or
crevices in oors or wall openings and cause a hid-
den smoldering re or res on the oor below. Make
certain that such openings are protected from hot
sparks and metal.“
3. Do not weld, cut or perform other hot work until the
workpiece has been completely cleaned so that there
are no substances on the workpiece which might
produce ammable or toxic vapors. Do not do hot
work on closed containers. They may explode.
4. Have re extinguishing equipment handy for instant
use, such as a garden hose, water pail, sand bucket,
or portable re extinguisher. Be sure you are trained
in its use.
5. Do not use equipment beyond its ratings. For ex-
ample, overloaded welding cable can overheat and
create a re hazard.
6. After completing operations, inspect the work area
to make certain there are no hot sparks or hot metal
which could cause a later re. Use re watchers when
necessary.
7. For additional information, refer to NFPA Standard
51B, "Fire Prevention in Use of Cutting and Welding
Processes", available from the National Fire Protec-
tion Association, Batterymarch Park, Quincy, MA
02269.
ELECTRICAL SHOCK -- Contact with
live electrical parts and ground can
cause severe injury or death. DO NOT
use AC welding current in damp areas,
if movement is conned, or if there is
danger of falling.
6
SAFETY PRECAUTIONS
1. Be sure the power source frame (chassis) is con-
nected to the ground system of the input power.
2. Connect the workpiece to a good electrical
ground.
3. Connect the work cable to the workpiece. A poor
or missing connection can expose you or others
to a fatal shock.
4. Use well-maintained equipment. Replace worn or
damaged cables.
5. Keep everything dry, including clothing, work
area, cables, torch/electrode holder, and power
source.
6. Make sure that all parts of your body are insulated
from work and from ground.
7. Do not stand directly on metal or the earth while
working in tight quarters or a damp area; stand
on dry boards or an insulating platform and wear
rubber-soled shoes.
8. Put on dry, hole-free gloves before turning on the
power.
9. Turn o the power before removing your gloves.
10. Refer to ANSI/ASC Standard Z49.1 (listed on
next page) for specic grounding recommenda-
tions. Do not mistake the work lead for a ground
cable.
ELECTRIC AND MAGNETIC FIELDS
— May be dangerous. Electric cur-
rent owing through any conduc-
tor causes localized Electric and
Magnetic Fields (EMF). Welding and
cutting current creates EMF around welding cables
and welding machines. Therefore:
1. Welders having pacemakers should consult their
physician before welding. EMF may interfere with
some pacemakers.
2. Exposure to EMF may have other health eects which
are unknown.
3. Welders should use the following procedures to
minimize exposure to EMF:
A. Route the electrode and work cables together.
Secure them with tape when possible.
B. Never coil the torch or work cable around your
body.
C. Do not place your body between the torch and
work cables. Route cables on the same side of
your body.
D. Connect the work cable to the workpiece as close
as possible to the area being welded.
E. Keep welding power source and cables as far
away from your body as possible.
FUMES AND GASES -- Fumes and
gases, can cause discomfort or harm,
particularly in conned spaces. Do
not breathe fumes and gases. Shield-
ing gases can cause asphyxiation.
Therefore:
1. Always provide adequate ventilation in the work area
by natural or mechanical means. Do not weld, cut, or
gouge on materials such as galvanized steel, stain-
less steel, copper, zinc, lead, beryllium, or cadmium
unless positive mechanical ventilation is provided.
Do not breathe fumes from these materials.
2. Do not operate near degreasing and spraying opera-
tions. The heat or arc rays can react with chlorinated
hydrocarbon vapors to form phosgene, a highly
toxic gas, and other irritant gases.
3. If you develop momentary eye, nose, or throat ir-
ritation while operating, this is an indication that
ventilation is not adequate. Stop work and take
necessary steps to improve ventilation in the work
area. Do not continue to operate if physical discom-
fort persists.
4. Refer to ANSI/ASC Standard Z49.1 (see listing below)
for specic ventilation recommendations.
7
SAFETY PRECAUTIONS
5. WARNING: This product, when used for welding
or cutting, produces fumes or gases
which contain chemicals known to
the State of California to cause birth
defects and, in some cases, cancer.
(California Health & Safety Code
§25249.5 et seq.)
CYLINDER HANDLING -- Cylinders,
if mishandled, can rupture and vio-
lently release gas. Sudden rupture
of cylinder, valve, or relief device can
injure or kill. Therefore:
1. Use the proper gas for the process and use the
proper pressure reducing regulator designed to
operate from the compressed gas cylinder. Do not
use adaptors. Maintain hoses and ttings in good
condition. Follow manufacturer's operating instruc-
tions for mounting regulator to a compressed gas
cylinder.
2. Always secure cylinders in an upright position by
chain or strap to suitable hand trucks, undercar-
riages, benches, walls, post, or racks. Never secure
cylinders to work tables or xtures where they may
become part of an electrical circuit.
3. When not in use, keep cylinder valves closed. Have
valve protection cap in place if regulator is not con-
nected. Secure and move cylinders by using suitable
hand trucks. Avoid rough handling of cylinders.
4. Locate cylinders away from heat, sparks, and ames.
Never strike an arc on a cylinder.
5. For additional information, refer to CGA Standard P-1,
"Precautions for Safe Handling of Compressed Gases
in Cylinders", which is available from Compressed
Gas Association, 1235 Jeerson Davis Highway,
Arlington, VA 22202.
EQUIPMENT MAINTENANCE -- Faulty or
improperly maintained equipment can
cause injury or death. Therefore:
1. Always have qualied personnel perform the instal-
lation, troubleshooting, and maintenance work.
Do not perform any electrical work unless you are
qualied to perform such work.
2. Before performing any maintenance work inside a
power source, disconnect the power source from
the incoming electrical power.
3. Maintain cables, grounding wire, connections, power
cord, and power supply in safe working order. Do
not operate any equipment in faulty condition.
4. Do not abuse any equipment or accessories. Keep
equipment away from heat sources such as furnaces,
wet conditions such as water puddles, oil or grease,
corrosive atmospheres and inclement weather.
5. Keep all safety devices and cabinet covers in position
and in good repair.
6. Use equipment only for its intended purpose. Do
not modify it in any manner.
ADDITIONAL SAFETY INFORMATION -- For
more information on safe practices for
electric arc welding and cutting equip-
ment, ask your supplier for a copy of
"Precautions and Safe Practices for Arc
Welding, Cutting and Gouging", Form
52-529.
The following publications, which are available from
the American Welding Society, 550 N.W. LeJuene Road,
Miami, FL 33126, are recommended to you:
1. ANSI/ASC Z49.1 - "Safety in Welding and Cutting"
2. AWS C5.1 - "Recommended Practices for Plasma Arc
Welding"
3. AWS C5.2 - "Recommended Practices for Plasma Arc
Cutting"
4. AWS C5.3 - "Recommended Practices for Air Carbon
Arc Gouging and Cutting"
8
SAFETY PRECAUTIONS
5. AWS C5.5 - "Recommended Practices for Gas Tung-
sten Arc Welding“
6. AWS C5.6 - "Recommended Practices for Gas Metal
Arc Welding"“
7. AWS SP - "Safe Practices" - Reprint, Welding Hand-
book.
8. ANSI/AWS F4.1, "Recommended Safe Practices for
Welding and Cutting of Containers That Have Held
Hazardous Substances."
MEANING OF SYMBOLS - As used
throughout this manual: Means Atten-
tion! Be Alert! Your safety is involved.
Means immediate hazards which,
if not avoided, will result in im-
mediate, serious personal injury
or loss of life.
Means potential hazards which
could result in personal injury or
loss of life.
Means hazards which could result
in minor personal injury.
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17
For 50A operation install: bae (0558008705), electrode (0558005220), nozzle (0558004878), retainer cup
(0558006600), and shield (0558006602).
For 30 and 40A operation install: bae (0558008705), electrode (0558005220), nozzle (0558005218),
retainer cup (0558006600), and shield (0558006603).
Note:
Remove all #10 screws and washers from brass
adaptor and save for installation step 4.
1. Remove power supply access panel cover
and disconnect the PT-35 torch from the ESP-
50.
2. Install brass adaptor (left-hand thread) into
power supply torch tting. Tighten securely.
3. Installation of wiring harness adaptor -
Connect red pilot arc wire to pilot arc
connection using large wing nut. Tighten
securely.
4. Connect multi-wire power lug to brass
adaptor using supplied screw/lock washer.
Tighten securely.
5. Install the PT-37 torch hose and lead plug
through the power supply torch inlet.
• Push hose connection into quick-con-
nect tting on brass adaptor until se-
curely connected.
• Plug torch wiring connector into adap-
tor connector until mating parts lock to-
gether.
6. Check all connections. Install power supply
access panel cover.
7. Set air pressure to 75 psig for rst cut evalu-
ation. Reduce speed 20% from PT-37 condi-
tions. Adjust all parameters as cut perfor-
mance requires.
INSTALLATION
Note:
Adjust ESP-50 output current to match selected
cut data chart.
Adapter Kit PT-37 to ESP-50 ................................................................................................................................................0558008736
The PT-37 Mechanized Plasma Torch ships with a 100 amp consumable set installed which must be removed
prior to cutting with the ESP-50.
When mating a PT-37 Mechanized Plasma Torch to the ESP-50, an adapter kit must be used for connection.
18
Material:
Amperes:
Plasma Gas:
PLASMARC™ Cutting Torch
when used with
ESP-50 Plasma System
PT-37
5
Galvanized Steel
30 and 40
Air @ 80 psi (5.5 bar)
1. GAS BAFFLE, P/N 0558008705
2. ELECTRODE, P/N 0558005220
3. NOZZLE, 3040 AMP, P/N 0558005218
4. RETAINING CUP W/ THREADS, P/N 0558006600
5. SHIELD, 3040 AMP, P/N 0558006603
OPERATION
19
PT-37 30 & 40 amp Galvanized Steel Data when used with ESP-50 Plasma System
Inch cutting data
Material
Thickness
Cutting
Current
Initial
Height
Pierce
Height
Cutting
Height
Arc
Voltage
Pierce
Delay
Kerf
Width
Optimum
Speed
Maximum
Speed
Gauge Inches Amps Inches Inches Inches Volts msec Inches IPM IPM
24ga 0.028 30 0.156 0.156 0.062 117 0 0.030 300 405
22ga 0.034 30 0.156 0.156 0.062 118 0 0.032 270 355
20ga 0.040 30 0.156 0.156 0.062 119 0 0.033 260 330
18ga 0.052 30 0.156 0.156 0.062 120 0 0.035 235 280
16ga 0.064 30 0.156 0.156 0.062 124 0 0.036 180 210
14ga 0.079 40 0.156 0.156 0.078 119 0 0.040 220 250
12ga 0.108 40 0.156 0.156 0.078 121 100 0.041 170 195
10ga 0.138 40 0.188 0.188 0.090 123 100 0.050 110 140
Metric Cutting Data
Material
Thickness
Cutting
Current
Initial
Height
Pierce
Height
Cutting
Height
Arc
Voltage
Pierce
Delay
Kerf
Width
Optimum
Speed
Maximum
Speed
mm Amps mm mm mm Volts msec mm mm/min mm/min
0.7 30 4.0 4.0 1.6 117 0 0.8 7600 10300
0.8 30 4.0 4.0 1.6 118 0 0.8 7200 9700
0.9 30 4.0 4.0 1.6 118 0 0.8 6800 8900
1 30 4.0 4.0 1.6 119 0 0.8 6600 8400
1.5 30 4.0 4.0 1.6 122 0 0.9 5100 6100
2 40 4.0 4.0 2.0 119 0 1.0 5600 6400
2.5 40 4.0 4.0 2.0 120 50 1.0 4700 5400
3 40 4.2 4.2 2.1 122 100 1.1 3800 4500
3.5 40 4.8 4.8 2.3 123 100 1.3 2800 3600
The published cut speeds are the result of ESAB’s laboratory testing. The actual optimum and maximum cutting speeds may
vary based on material composition, surface quality (rust, surface scale or primers, etc.) and various user setup parameters.
OPERATION
20
Material:
Amperes:
Plasma Gas:
PLASMARC™ Cutting Torch
when used with
ESP-50 Plasma System
PT-37
5
Carbon Steel
30 and 40
Air @ 80 psi (5.5 bar)
1. GAS BAFFLE, P/N 0558008705
2. ELECTRODE, P/N 0558005220
3. NOZZLE, 3040 AMP, P/N 0558005218
4. RETAINING CUP W/ THREADS, P/N 0558006600
5. SHIELD, 3040 AMP, P/N 0558006603
OPERATION
21
PT-37 30 & 40 amp Carbon Steel Data when used with ESP-50 Plasma System
Inch cutting data
Material
Thickness
Cutting
Current
Initial
Height
Pierce
Height
Cutting
Height
Arc
Voltage
Pierce
Delay
Kerf
Width
Optimum
Speed
Maximum
Speed
Gauge/
Fraction
Inches Amps Inches Inches Inches Volts msec Inches IPM IPM
26ga 0.018 30 0.188 0.188 0.062 118 0 0.033 500 690
24ga 0.024 30 0.188 0.188 0.062 119 0 0.034 450 615
22ga 0.030 30 0.188 0.188 0.062 120 0 0.035 400 540
20ga 0.036 30 0.188 0.188 0.062 121 0 0.035 350 465
18ga 0.048 30 0.188 0.188 0.062 122 0 0.035 255 315
16ga 0.060 30 0.188 0.188 0.062 124 0 0.040 150 200
14ga 0.075 40 0.188 0.188 0.078 119 0 0.045 220 250
12ga 0.105 40 0.188 0.188 0.085 121 50 0.048 155 190
1/8" 0.125 40 0.188 0.188 0.090 122 100 0.050 110 150
10ga 0.135 40 0.188 0.188 0.090 122 100 0.051 100 140
8ga 0.165 40 0.188 0.188 0.090 123 100 0.054 81 110
3/16" 0.188 40 0.188 0.188 0.090 124 100 0.056 64 86
6ga 0.194 40 0.189 0.189 0.090 124 100 0.057 62 83
4ga 0.224 40 0.195 0.195 0.090 126 125 0.059 55 71
1/4" 0.250 40 0.200 0.200 0.090 127 150 0.062 48 60
Metric Cutting Data
Material
Thickness
Cutting
Current
Initial
Height
Pierce
Height
Cutting
Height
Arc
Voltage
Pierce
Delay
Kerf
Width
Optimum
Speed
Maximum
Speed
mm Amps mm mm mm Volts msec mm mm/min mm/min
0.5 30 4.8 4.8 1.6 118 0 0.8 12300 17000
0.6 30 4.8 4.8 1.6 119 0 0.9 11400 15600
0.7 30 4.8 4.8 1.6 120 0 0.9 10800 14600
0.8 30 4.8 4.8 1.6 121 0 0.9 9800 13200
0.9 30 4.8 4.8 1.6 121 0 0.9 8900 11800
1 30 4.8 4.8 1.6 121 0 0.9 8200 10700
1.5 30 4.8 4.8 1.6 124 0 1.0 3800 5100
2 40 4.8 4.8 2.0 119 0 1.2 5400 6200
2.5 40 4.8 4.8 2.1 120 50 1.2 4300 5200
3 40 4.8 4.8 2.3 122 100 1.3 3100 4100
3.5 40 4.8 4.8 2.3 122 100 1.3 2600 3500
4 40 4.8 4.8 2.3 123 100 1.3 2200 3000
5 40 4.8 4.8 2.3 124 100 1.4 1550 2100
6 40 5.0 5.0 2.3 126 150 1.5 1300 1675
The published cut speeds are the result of ESAB’s laboratory testing. The actual optimum and maximum cutting speeds may
vary based on material composition, surface quality (rust, surface scale or primers, etc.) and various user setup parameters.
OPERATION
22
Material:
Amperes:
Plasma Gas:
PT-37
Carbon Steel
50
Air @ 80 psi (5.5 bar)
1. GAS BAFFLE, P/N 0558008705
2. ELECTRODE, P/N 0558005220
3. NOZZLE 50 AMP, P/N 0558004878
4. RETAINING CUP W/ THREADS, P/N 0558006600
5. SHIELD 5090 AMP, P/N 0558006602
Thick-
ness
in(mm)
Initial
Height
in(mm)
Pierce
Height
in(mm)
Cutting
Height
(stando)
in(mm)
Arc
Volt-
age
Pierce Delay
(millisec-
onds)
Kerf
Width
in (mm)
Optimum
IPM
(MM/MIN)
Maximum
IPM
(MM/MIN)
0.062 (16
ga)
0.200 (5.1) 0.200 (5.1) 0.062 (1.6) 118 0
0.040
(1.0)
375
(9525)
350
(10160)
0.125
(3.2)
0.200 (5.1) 0.200 (5.1) 0.090 (2.3) 127 100
0.058
(1.5)
150
(3810)
194
(4928)
0.188
(4.8)
0.200 (5.1) 0.200 (5.1) 0.094 (2.4) 129 100
0.062
(1.6)
90
(2286)
130
(3302)
0.250
(6.4)
0.200 (5.1) 0.200 (5.1) 0.125 (3.2) 133 150
0.068
(1.7)
65
(1651)
85
(2159)
0.375
(9.5)
0.200 (5.1) 0.250 (6.4) 0.120 (3.0) 139 200
0.068
(1.7)
35
(889)
45
(1143)
0.500
(12.7)
0.200 (5.1) 0.250 (6.4) 0.077 (1.8) 145 400
0.072
(1.8)
20
(508)
27
(686)
0.625
(15.9)
0.200 (5.1) 0.275 (7.0) 0.075 (1.9) 151 950
0.075
(1.9)
10
(254)
12
(305)
PLASMARC™ Cutting Torch
when used with
ESP-50 Plasma System
5
OPERATION
23
Material:
Amperes:
Plasma Gas:
PLASMARC™ Cutting Torch
when used with
ESP-50 Plasma System
PT-37
5
Aluminum
30 and 40
Air @ 80 psi (5.5 bar)
1. GAS BAFFLE, P/N 0558008705
2. ELECTRODE, P/N 0558005220
3. NOZZLE, 3040 AMP, P/N 0558005218
4. RETAINING CUP W/ THREADS, P/N 0558006600
5. SHIELD, 3040 AMP, P/N 0558006603
OPERATION
24
PT-37 30 & 40 amp Aluminum Data when used with ESP-50 Plasma System
Inch cutting data
Material
Thickness
Cutting
Current
Initial
Height
Pierce
Height
Cutting
Height
Arc
Voltage
Pierce
Delay
Kerf
Width
Optimum
Speed
Maximum
Speed
Gauge/
Fraction
Inches Amps Inches Inches Inches Volts msec Inches IPM IPM
20ga 0.031 30 0.156 0.156 0.062 121 0 0.035 410 645
18ga 0.040 30 0.156 0.156 0.062 123 0 0.039 350 525
16ga 0.051 30 0.156 0.156 0.062 124 0 0.041 270 410
14ga 0.063 30 0.156 0.156 0.062 126 0 0.044 190 285
12ga 0.081 40 0.156 0.156 0.090 118 0 0.045 240 330
10ga 0.102 40 0.161 0.161 0.093 121 50 0.047 170 245
1/8" 0.125 40 0.188 0.188 0.110 126 100 0.050 130 200
8ga 0.129 40 0.188 0.188 0.110 126 100 0.050 120 195
6ga 0.162 40 0.188 0.188 0.110 127 100 0.052 100 140
3/16" 0.188 40 0.188 0.188 0.110 128 100 0.054 80 100
1/4" 0.250 40 0.200 0.200 0.125 136 150 0.059 50 66
Metric Cutting Data
Material
Thickness
Cutting
Current
Initial
Height
Pierce
Height
Cutting
Height
Arc
Voltage
Pierce
Delay
Kerf
Width
Optimum
Speed
Maximum
Speed
mm Amps mm mm mm Volts msec mm mm/min mm/min
0.8 30 4.0 4.0 1.6 121 0 0.9 10500 16400
0.9 30 4.0 4.0 1.6 122 0 0.9 9700 14900
1 30 4.0 4.0 1.6 123 0 1.0 8900 13300
1.5 30 4.0 4.0 1.6 126 0 1.1 5400 8200
2 40 4.0 4.0 2.3 118 0 1.1 6100 8400
2.5 40 4.0 4.0 2.3 120 50 1.2 4600 6400
3 40 4.6 4.6 2.7 124 85 1.2 3600 5400
3.5 40 4.8 4.8 2.8 126 100 1.3 3000 4600
4 40 4.8 4.8 2.8 127 100 1.3 2600 3800
5 40 4.8 4.8 2.9 129 100 1.4 1900 2550
6 40 5.0 5.0 3.1 134 150 1.5 1425 1875
The published cut speeds are the result of ESAB’s laboratory testing. The actual optimum and maximum cutting speeds may
vary based on material composition, surface quality (rust, surface scale or primers, etc.) and various user setup parameters.
OPERATION
25
Material:
Amperes:
Plasma Gas:
PT-37
Aluminum
50
Air @ 80 psi (5.5 bar)
1. GAS BAFFLE, P/N 0558008705
2. ELECTRODE, P/N 0558005220
3. NOZZLE 50 AMP, P/N 0558004878
4. RETAINING CUP W/ THREADS, P/N 0558006600
5. SHIELD 5090 AMP, P/N 0558006602
Thick-
ness
in(mm)
Initial
Height
in(mm)
Pierce
Height
in(mm)
Cutting
Height
(stando)
in(mm)
Arc
Volt-
age
Pierce Delay
(millisec-
onds)
Kerf
Width
in (mm)
Optimum
IPM
(MM/MIN)
Maximum
IPM
(MM/MIN)
0.062
(1.6)
0.200 (5.1) 0.200 (5.1) 0.050 (1.3) 138 50
0.064
(1.6)
220
(5588)
500
(12700)
0.125
(3.2)
0.200 (5.1) 0.200 (5.1) 0.060 (1.5) 138 150
0.065
(1.7)
180
(4572)
235
(5969)
0.188
(4.8)
0.200 (5.1) 0.200 (5.1) 0.075 (1.9) 141 200
0.065
(1.7)
100
(2540)
140
(3556)
0.250
(6.4)
0.200 (5.1) 0.200 (5.1) 0.065 (1.7) 147 250
0.074
(1.9)
72
(1829)
88
(2235)
0.375
(9.5)
0.200 (5.1) 0.250 (6.4) 0.062 (1.6) 156 350
0.074
(1.9)
36
(914)
50
(1270)
0.500
(12.7)
0.200 (5.1) 0.280 (7.1) 0.120 (3.0) 160 500
0.084
(2.1)
20
(508)
30
(762)
PLASMARC™ Cutting Torch
when used with
ESP-50 Plasma System
5
PT-37 30 & 40 amp Aluminum Data when used with ESP-50 Plasma System
OPERATION
26
Material:
Amperes:
Plasma Gas:
PLASMARC™ Cutting Torch
when used with
ESP-50 Plasma System
PT-37
5
Stainless Steel
30 and 40
Air @ 85 psi (5.85 bar)
1. GAS BAFFLE, P/N 0558008705
2. ELECTRODE, P/N 0558005220
3. NOZZLE, 3040 AMP, P/N 0558005218
4. RETAINING CUP W/ THREADS, P/N 0558006600
5. SHIELD, 3040 AMP, P/N 0558006603
OPERATION
27
PT-37 30 & 40 amp Stainless Steel Data when used with ESP-50 Plasma System
Inch cutting data
Material
Thickness
Cutting
Current
Initial
Height
Pierce
Height
Cutting
Height
Arc
Voltage
Pierce
Delay
Kerf
Width
Optimum
Speed
Maximum
Speed
Gauge/
Fraction
Inches Amps Inches Inches Inches Volts msec Inches IPM IPM
26ga 0.019 30 0.156 0.156 0.078 127 0 0.030 415 635
24ga 0.025 30 0.156 0.156 0.078 128 0 0.031 375 560
22ga 0.031 30 0.156 0.156 0.078 128 0 0.031 340 480
20ga 0.038 30 0.156 0.156 0.078 129 0 0.032 300 390
18ga 0.050 40 0.156 0.156 0.090 120 0 0.038 335 590
16ga
1/16"
0.063 40 0.156 0.156 0.090 118 0 0.040 245 375
14ga 0.078 40 0.156 0.156 0.090 119 0 0.045 145 220
12ga 0.109 40 0.171 0.171 0.090 123 75 0.050 100 155
11ga
1/8"
0.125 40 0.188 0.188 0.090 126 100 0.055 75 115
10ga 0.140 40 0.188 0.188 0.090 126 100 0.056 68 100
8ga 0.172 40 0.188 0.188 0.090 128 100 0.057 52 79
3/16" 0.188 40 0.188 0.188 0.090 128 100 0.058 44 67
6ga 0.203 40 0.191 0.191 0.091 129 100 0.060 41 62
4ga 0.234 40 0.197 0.197 0.093 133 100 0.063 33 51
3ga 1/4" 0.250 40 0.200 0.200 0.094 134 100 0.065 30 46
Metric Cutting Data
Material
Thickness
Cutting
Current
Initial
Height
Pierce
Height
Cutting
Height
Arc
Voltage
Pierce
Delay
Kerf
Width
Optimum
Speed
Maximum
Speed
mm Amps mm mm mm Volts msec mm mm/min mm/min
0.6 30 4.0 4.0 2.0 127 0 0.8 9800 14700
0.7 30 4.0 4.0 2.0 128 0 0.8 9200 13400
0.8 30 4.0 4.0 2.0 128 0 0.8 8700 12200
0.9 30 4.0 4.0 2.0 129 0 0.8 8000 10800
1 30 4.0 4.0 2.0 129 0 0.8 7400 9500
1.5 40 4.0 4.0 2.3 119 0 1.0 6800 11000
2 40 4.0 4.0 2.3 119 0 1.1 3700 5600
2.5 40 4.1 4.1 2.3 122 50 1.2 3000 4600
3 40 4.6 4.6 2.3 125 100 1.3 2200 3300
3.5 40 4.8 4.8 2.3 126 100 1.4 1750 2650
4 40 4.8 4.8 2.3 127 100 1.4 1500 2275
5 40 4.8 4.8 2.3 129 100 1.5 1075 1625
6 40 5.0 5.0 2.4 133 100 1.6 850 1300
6.5 40 5.1 5.1 2.4 135 100 1.7 725 1125
The published cut speeds are the result of ESAB’s laboratory testing. The actual optimum and maximum cutting speeds may
vary based on material composition, surface quality (rust, surface scale or primers, etc.) and various user setup parameters.
OPERATION
28
OPERATION
Material:
Amperes:
Plasma Gas:
PLASMARC™ Cutting Torch
when used with
ESP-50 Plasma System
PT-37
Stainless Steel
50
Air @ 80 psi (5.5 bar)
1. GAS BAFFLE, P/N 0558008705
2. ELECTRODE, P/N 0558005220
3. NOZZLE 50 AMP, P/N 0558004878
4. RETAINING CUP W/ THREADS, P/N 0558006600
5. SHIELD 5090 AMP, P/N 0558006602
5
Thick-
ness
in(mm)
Initial
Height
in(mm)
Pierce
Height
in(mm)
Cutting
Height
(stando)
in(mm)
Arc
Volt-
age
Pierce Delay
(millisec-
onds)
Kerf
Width
in (mm)
Optimum
IPM
(MM/MIN)
Maximum
IPM
(MM/MIN)
0.062
(16 ga)
0.200 (5.1) 0.200 (5.1) 0.110 (2.8) 125 50
0.042
(1.1)
300
(7620)
450
(11430)
0.093
(13 ga)
0.200 (5.1) 0.200 (5.1) 0.105 (2.7) 125 100
0.055
(1.4)
150
(3810)
210
(5334)
0.125
(3.2)
0.200 (5.1) 0.200 (5.1) 0.110 (2.8) 128 200
0.067
(1.7)
110
(2794)
162
(4115)
0.188
(4.8)
0.200 (5.1) 0.200 (5.1) 0.125 (3.2) 132 200
0.067
(1.7)
60
(1524)
85
(2159)
0.250
(6.4)
0.200 (5.1) 0.200 (5.1) 0.110 (2.8) 132 200
0.070
(1.8)
40
(1016)
55
(1397)
0.375
(9.5)
0.200 (5.1) 0.240 (6.1) 0.090 (2.3) 135 350
0.068
(1.7)
20
(508)
30
(762)
0.500
(12.7)
0.200 (5.1) 0.240 (6.1) 0.125 (3.2) 144 500
0.091
(2.3)
12
(305)
18
(457)
Notes:
Note 1 - Rise = 25 milliseconds
NR = Not Recommended
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ESAB PT-37 Plasma Cutting Torch when used User manual
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