Lotos Technology Supreme CUT60D User manual

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Supreme CUT60D
OWNER’S MANUAL
Carefully read the operation manual prior to using,
Installing and maintaining this electric welding machine.

IMPORTANT
Save This Manual
You will need the manual for safety warnings and
precautions, assembly instructions, operating and
maintenance procedures, parts list and diagram.
Keep your invoice with this manual. Write invoice
number and date of purchase on the inside of the
manual. Keep the manual and invoice in a safe and
dry place for future.
Operation Manual
Carefully read the operation manual prior to using,
installing and maintaining the electric welding
machine for the purpose of preventing damages
such as fire, electric shock and etc. from occurring.
Please keep the manual for the reference in the
future.

TABLE OF CONTENTS
SAFETY WARNINGS AND PRECAUTIONS ...................................................... 4
READ ALL INSTRUCTIONS BEFORE USING THIS WELDER.............................................................4
ARC WELDER SAFETY WARNINGS AND PRECAUTIONS.................................................................6
California Proposition 65 Warnings .............................................................. 8
SPECIFICATIONS ............................................................................9
 GENERALDESCRIPTION ......................................................................................................9
 WHAT’S INCLUDED ..............................................................................................................10
 POWER SUPPLY RATINGS .................................................................................................11
 PANEL EXPLANATION .........................................................................................................12
 CONSUMABLE TYPE AND INSTALLATION ......................................................................13
QUICK SETUP GUIDE........................................................................ 14
INSTALLATION..............................................................................15
 MACHINE SETUP ..................................................................................................................15
OPERATION ................................................................................ 17
 OPERATIONS .........................................................................................................................17
 OPERATION STEPS ..............................................................................................................18
 OPERATE THE SAFETY TRIGGER ....................................................................................20
 CUT FROM THE EDGE .........................................................................................................21
 PIERCE A WORK PIECE ......................................................................................................22
 GOUGE A WORK PIECE ......................................................................................................23
 COMMON HAND-CUTTING FAULTS ..................................................................................24
 USING THE MACHINE TORCH ...........................................................................................25
MAINTENANCE .............................................................................26
TROUBLESHOOTING ........................................................................ 27
REFERENCE................................................................................ 28
 PSI SETTING REFERENCE TABLE ....................................................................................28
 CUTTING SPEED REFERENCE TABLE ............................................................................28
 CNC CONNECTOR PIN OUT ...............................................................................................30
CONSUMABLES............................................................................. 31

SAFETY WARNINGS AND PRECAUTIONS
PLEASE READ AND
UNDERSTAND THE FOLLOWING
SAFETY HIGHLIGHTS. BE
SURE THAT ALL INSTALLATION,
OPERATION, MAINTENANCE AND REPAIR
PROCEDURES ARE PERFORMED ONLY BY
QUALIFIED INDIVIDUALS. ARC AND TIG
WELDING CAN BE HAZARDOUS. PROTECT
YOURSELF AND OTHERS FROM POSSIBLE
SERIOUS INJURY OR DEATH. KEEP
CHILDREN AWAY. PACEMAKER WEARERS
SHOULD CONSULT WITH THEIR DOCTOR
BEFORE OPERATING
WHEN USING THE WELDER, ALL
BASIC SAFETY PRECAUTIONS
SHOULD ALWAYS BE FOLLOWED
TO REDUCE THE RISK OF PERSONAL
INJURY AND DAMAGE TO EQUIPMENT.
READ ALL INSTRUCTIONS BEFORE
USING THIS WELDER.
Keep work area clean. Cluttered areas
invite injuries.
Observe work area conditions. Do not
use machines or power tools in damp or wet
locations. Do not expose to rain. Keep work
area well-lighted. Do not use electrically
powered tools in the presence of flammable
gases or liquids.
Keep children away. Children must be
never allowed in the work area. Do not let
them handle machines, tools or extension
cords.
Store idle equipment. When not in use,
tools must be stored in a dry location to
inhibit rust.
Always lock up tools and keep them out of
the reach of children.
Do not force tool. It will do the job better
and safer at the rate for which it was
intended. Do not use inappropriate
attachments in an attempt to exceed the
tool capacity.
Use the right tool for the job. Do not
attempt to force a small tool or attachment
to do the work of a larger industrial tool.
There are certain applications for which this
welder was designed. Do not modify this
welder and do not use this welder for any
other purposes for which it was not intended.
Dress properly. Do not wear loose clothing
or jewelry as they can be caught in moving
parts. Protective, flame retardant,
electrically non-conductive clothing and
non-skid footwear are recommended when
working. Wear restrictive hair covering to
contain long hair.
Use eye and ear protection. Always wear
ANSI approved, arc shaded, impact safety
face shield (welding helmet). Always use a
full-face shield when welding. Always wear
ANSI approved eyewear under face shield
and while in the workplace. Wear a NIOSH
approved dust mask or respirator when
working around metal, chemical dusts,
fumes and mists.
Do not over reach. Keep proper footing
and balance at all times. Do not reach over
or across running machines.
Maintain tools with care. Keep tools sharp
and clean for better and safer performance.
Follow instructions for lubricating and
changing accessories. Inspect tool cords
periodically and, if damaged, have them
repaired by an authorized technician. The
handles must be kept clean, dry, and free
from oil and grease at all times.
Disconnect power. Unplug tool when not
in use.
Remove adjusting keys and wrenches.
Check that keys and adjustment wrenches
are removed from the welder and work area
before plugging in.

Avoid starting unintentionally. Be sure
the switch is in the off position when not in
use and before plugging in. Do not carry any
tool with your finger on the trigger, whether
it is plugged in or not.
Stay alert. Watch what you are doing. Use
common sense. Do not operate any tool
when tired.
Check for damaged parts. Before using
any tool, any part that appears damaged
should be carefully checked to determine
that it would operate properly and perform
its intended function. Check for alignment
and binding of moving parts; any broken
parts or mounting fixtures; and any other
condition that may affect proper operation.
Any part that is damaged should be properly
repaired or replaced by a qualified
technician. Do not use the tool if any switch
does not turn on and off properly.
Guard against electric shock. Prevent
body contact with grounded surfaces such
as pipes, radiators, ranges and refrigerator
enclosures.
Replacement parts and accessories.
When servicing, use only identical
replacement parts. Use of any other parts
will void warranty. Only use accessories
intended for use with this welder. Approved
accessories are available from
www.uwelding.com.
Do not operate tool if under the influence
of alcohol or drugs. Read warning labels
on prescriptions to determine if your
judgment or reflexes are impaired while
taking drugs. If there is any doubt, do not
operate the welder.
Maintenance. For your safety, service and
maintenance should be performed regularly
by a qualified technician.
Use proper size and type extension cord.
If an extension cord is required, it must be
of the proper size and type to supply the
correct current to the welder without heating
up. Otherwise, the extension cord could
melt and catch fire, or cause electrical
damage to the welder. This welder requires
use of an extension cord of 20Amps
minimum capability up to 30 feet, with a wire
size rated at 12 AWG. Longer extension
cords require larger size wire. If you are
using the welder outdoors, use an extension
cord rated for outdoor use, signified by “WA”
on the jacket. Performance of this welder
may vary depending on condition in local
line voltage. Extension cord usage may also
affect welder performance.
The warnings, cautions and
instructions discussed in this
instruction manual cannot cover
all possible conditions and situations that
may occur. It must be understood, by the
operator, that common sense and caution
are factors, which cannot be built into this
product, but must be observed at all times
by the operator.

ARC WELDER SAFETY WARNINGS
AND PRECAUTIONS
Warning: This product, when used for
welding and similar applications, produces
chemicals known to cause cancer and birth
defects (or other reproductive harm).
ELECTRIC SHOCK can be fatal
The electrode and work (or
ground) circuits are electrically
“hot” when the machine is on. Do
not touch these “hot” parts with your bare skin
or wet clothing. Protective clothing should be
hole free, dry and ANSI approved. Wear dry,
hole-free gloves to insulate hands.
Do not permit electrically live parts, cables,
or electrodes to contact skin, clothing or
gloves.
This unit draws enough current to cause
serious injury and or death.
Before turning the welder on, check the
welder gun to be sure that there are no
protruding screw heads and that all
insulation is secure.
Insulate yourself from work and ground
using dry insulation. Make certain the
insulation is large enough to cover your full
area of physical contact with work and
ground.
Always be sure the work cable makes a
good electrical connection with the metal
being cut. The connection should be as
close as possible to the area being cut.
Ground the work metal to be cut to a good
electrical (earth) ground.
Maintain the welding torch, work clamp,
power cable and cutting machine in a safe
operating condition. Replace damaged
insulation wherever it is needed.
Never dip the electrode in water for cooling.
When working above floor level, use a
safety belt to protect yourself from a fall
should you get a shock.
Plasma cutting may produce
fumes and gases hazardous to
health. Avoid breathing these fumes and gases.
When cutting, keep your head out of the fume.
Use enough ventilation and/or exhaust at the
arc to keep fumes and gases away from the
breathing zone. In confined spaces or in some
circumstances, outdoors, a respirator may be
required. Additional precautions are also
required when cutting on galvanized steel.
Do not cut in locations near chlorinated
hydrocarbon vapors coming from
degreasing, cleaning or spraying operations.
The heat and rays of the arc can react with
solvent vapors to form phosgene, a highly
toxic gas and other irritating products.
Read and understand the manufacturer’s
instructions for this equipment and the
consumables to be used, including the
material safety data sheet (MSDS) and
follow your employer’s safety practices.
MSDS forms are available from your
welding distributor or from the
manufacturer.
The EMF field
that is generated during arc welding may
interfere with various electrical and electronic
devices such as cardiac pacemakers.
Anyone using such devices should consult
with their physician prior to performing any
electric welding operations.
Exposure to EMF fields while welding may
have other health effects, which are not
known.
FUMES & GASES can be
dangerous
ELECTRIC&MAGNETIC
FIELDS may be dangerous

ARC RAYS can burn
Avoid eye and body
damage. Arc rays and infrared
radiation can cause injury to the
eyes and burn the skin. Wear ANSI
approved eye and body protection. Do not
allow viewing by visitors without proper eye
and body protection.
Use a shield with the proper filter and cover
plates to protect your eyes from sparks and
the rays of the arc when plasma cutting or
observing open arc plasma cutting.
Use suitable clothing made from durable
flame-resistant material to protect your skin
and that of your helpers from the arc rays.
Protect other nearby personnel with suitable,
non-flammable screening and/or warn them
not to watch the arc nor expose themselves
to the arc rays or to hot spatter or metal.
WELDING SPARKS can
cause fire or explosion
Avoid eye and body damage.
Arc rays and infrared radiation
can cause injury to the eyes
and burn the skin. Wear ANSI approved eye and
body protection. Do not allow viewing by visitors
without proper eye and body protection.
Use a shield with the proper filter and cover
plates to protect your eyes from sparks and
the rays of the arc when plasma cutting or
observing open arc plasma cutting.
Use suitable clothing made from durable
flame-resistant material to protect your skin
and that of your helpers from the arc rays.
Protect other nearby personnel with suitable,
non-flammable screening and/or warn them
not to watch the arc nor expose themselves
to the arc rays or to hot spatter or metal.
CYLINDER may explode if
damaged
Use only compressed gas
cylinders containing the correct
shielding gas for the process
used and properly operating regulators
designed for the gas and pressure used. All
hoses, fittings, etc. should be suitable for
the application and maintained in good
condition.
Always keep cylinders in an upright position
securely chained to an undercarriage or
fixed support.
Cylinders should be located:
Away from areas where they may be struck
or subjected to physical damage.
A safe distance from arc welding or cutting
operations and any other source of heat,
sparks, or flame.
Never allow any electrically “hot” parts to
touch a cylinder.
Keep your head and face away from the
cylinder valve outlet when opening the
cylinder valve.
Valve protection caps should always be in
place and hand tight except when the
cylinder is in use or connected for use.
Turn off input power using the
disconnect switch at the fuse
box before working on the equipment.
Install equipment in accordance with the
local codes and the manufacturer’s
recommendations.
Ground the equipment in
accordance with the
manufacturer’s
recommendations. Keep away from moving
parts such as fans.
Keep all doors, panels, covers and safety
guards closed and securely in place.
ELECTRICALLY POWERED
EQUIPMENT can be
dangerous
MOVING PARTS can cause
injury

CALIFORNIA PROPOSITION 65 WARNINGS
Welding or cutting equipment
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
Section 25249.5 et seq.)
Battery posts, terminals and related
accessories contain lead and lead
compounds, chemicals known to the
State of California to cause cancer and birth
defects or other reproductive harm. Wash
hands after handling.
For Gasoline Engines:
Engine exhaust contains
chemicals known to the State of
California to cause cancer, birth
defects, or other reproductive harm.
For Diesel Engines:
Diesel engine exhaust and
some of its constituents are
known to the State of California
to cause cancer, birth defects,
and other reproductive harm.
PLEASE READ THIS OPERATION MANUAL CAREFULLY AND
THOROUGHLY BEFORE ATTEMPTING TO OPERATE THIS MACHINE.
KEEP THIS MANUAL HANDY FOR QUICK REFERENCE. PAY CLOSE
ATTENTION TO THE SAFETY INSTRUCTIONS PROVIDED FOR YOUR
OWN PROTECTION.

SPECIFICATIONS
 GENERAL DESCRIPTION
THANK YOU! You had options for other CNC machines and you chose LOTOS Supreme
CUT60D Plasma Cutter. We appreciate you as a customer and hope that you will enjoy
years of use from your plasma cutter.
Congratulations for your purchase.
The new, redesigned LOTOS Supreme CUT series is a non-high frequency start
machine. The “blow-back” type start that is used is generally safe for use in CNC
applications and is ideal for general use. Blow-back type start involves a rearward
movement of the electrode within the torch head when forced by the air pressure.
When air pressure is applied the movement of the electrode off its seated position
against the inner surface of the circuit grounded nozzle creates a spark, energizing the
plasma stream. With this machine’s start type and pilot arc design, you are able to cut
on any metal surface without having to contact to strike an arc which is ideal for cutting
items like expanded metal or uneven surfaces. This Cutting machine has a wide range
of uses which is suitable for cutting: stainless steel, alloy steel, mild steel, copper and
other color metal materials.
There are several other key features on the Supreme Cut series:
 With the reliable Blow-Back non-high frequency start, the LOTOS Supreme
CUT60D is suitable for CNC application meaning there will be no interference to
your CNC computer system.
 Italy made Trafimet ERGOCUT S65 torch features a “BLOWBACK” design with a
Euro-type Central connector. Offering improved consumable life with a patented
“BACK STRIKING” design.
 Plasma Air Gouging enabled.
 2T/4T Function enabled.
 Expanded/punched metal cutting by using Continuous pilot arc model.
 Post-flow control provides the time of the post flow air so consumable life is
increased and the torch can be cooled for an extended period of time if desired.
 The pre-installed NPT 1/4” industry type D plug and air filter regulator allows you
to quick connect to your air compressor by using the stand coupler existing on your
air compressor.
 Pre-installed 12-PIN CNC Interface.

 WHAT’S INCLUDED
Power Supply:
 20ft Torch with Central
Connector:
10ft Ground Clamp &
Cable:
120V/240V Convertor:
12-PIN CNC Connector
Hand-Held Shield, Wire
Brush, etc.
Consumables & Tools:
Instruction Manual

 POWER SUPPLY RATINGS
Supreme CUT60D
Specification
220/240 V
110/120 V
Inverter Type
MOSFET
Minimum/Maximum Rated Output
20 A/88V - 60 A/104 V
20 A/88V - 30 A/92 V
Start Type
Blow-Back Type
Torch Type
TRAFIMET ERGOCUT S65 with Central Connector
Duty Cycle @ Rated Amps/Volts (40° C) 1
(Output V/A)
60% @ 60 A/104 V
100% @ 46 A/98.4 V
60% @ 30 A/92 V
100% @ 23A/89.3 V
OCV (U0)
309 V
Voltage Input (U1)
Standard 220/ 240 V (+-15%)
50/60Hz 1 Phase
Standard 110/ 120 V (+-15%)
50/60Hz 1 Phase
Maximum Inrush Amps (I1MAX)
44.5 A
39.4 A
Maximum Rated Effective Amps (I1EFF)
34.5 A
30.5 A
CNC Port
Yes
Air Post Flow Timer
Adjustable
Minimum Air Compressor Requirement
5.5 CFM @ 90 psi/ 30-60 Gallon reserve
Duty Cycle/ Over Current Protection
Yes
Minimum Operating Air Pressure
(Safety Cut-Out Threshold)
35 psi
Recommended Operating Air Pressure
(Set with Air Flow set to “Constant Flow”)
40-75 psi
Maximum Supplied Air Pressure
(From Compressor/Tank)
90 psi
Ideal Cut Thickness (Hand Torch)
4/5” (20mm)
1/3” (8mm)
Ideal Cut Thickness (CNC)
1/2” (12mm)
1/4” (6mm)
Max Severance Cut @ 3 IPM (Steel)
1 1/4”
Minimum Water Ingress Protection Standard
IP21
Efficiency
>85%
Cooling Method
Full Time High Velocity Fan with Tunnel Design
Dimensions (approximate)
20.67 L × 7.87 W × 14.6 H
Weight (Bare Unit)
31.3 lbs.
1 Duty Cycle is percentage of 10 minutes that unit can weld at rated load without overheating.

The unit is connected to the supply even if the Power Switch is in the “OFF”
position meaning there are electrically live parts inside the power source as
long as it is plugged in. Carefully follow the instructions given in this manua l.
 PANEL EXPLANATION
1 Central Switch Socket
9 Gouging
2 Pressure-Reducing Valve
10 Gas Check/Post Flow
3 Gas-Pressure Meter
11 2T/4T Change-Over Switch`
4 Digital Display
12 Positive Output
5 Overheat
13 Air Inlet
6 Current / Post Flow
14 Power Switch
7 Continuous Pilot Arc
15 CNC Interface
8 Non-Continuous Pilot Arc
16 Power Cord

 CONSUMABLE TYPE AND INSTALLATION
The LOTOS Supreme CUT60D use the high-quality stand Trafimet Ergocut S65 torch. The
torch and most of the related consumables are made in Italy by Trafimet.
Use the Flow Meter to Test the Airflow of your torch before cutting Make sure the metal ball
is in red range.

QUICK SETUP GUIDE
PLEASE READ ENTIRE INSTALLATION SECTION BEFORE STARTING INSTALLATION. BE
SURE THAT ONLY QUALIFIED PERSONNEL SHOULD PERFORM THIS INSTALLATION.
Air compressor AC 120/240V
Workpiece
Cutting torch
Earth clamp

INSTALLATION
PLEASE READ ENTIRE INSTALLATION SECTION BEFORE STARTING INSTALLATION. BE
SURE THAT ONLY QUALIFIED PERSONNEL SHOULD PERFORM THIS INSTALLATION.
 MACHINE SETUP
ELECTRIC SHOCK can be fatal
Have a qualified electrician install and service this equipment.
Turn the input power OFF and unplug the machine from the
receptacle before working on this equipment.
Allow machine to sit for 5 minutes minimum to allow the power capacitors to
discharge before working inside this equipment.
Do not touch electrically hot parts.
Machine must be plugged into a receptacle that is grounded according to the National
Electrical Code and local codes.
Do not remove or defeat the purpose of the power cord ground pin.
SELECT SUITABLE LOCATION
The machine will operate in harsh environments. Even so, it is important that
standard measures are followed in order to assure the machine is long lasting and
reliable operation.
 The machine must be located where there is open space such that the air
circulation in the back and out the front will not be restricted.
 Avoid getting dirt and dust in the machine. Failure to observe these precautions
can result in excessive operating temperatures and the machine will shut down
by itself.
ENVIRONMENTAL AREA
Keep the machine dry. Do not place it on wet ground or in puddles. Avoid rain water.
Operating in rain is not allowed.
INPUT CABLE CONNECTION (enclose installing diagram)
 Every machine has an included power cable which must be connected to
coordinated voltage class in compliance according to input voltage of cutting
machine. We recommend connecting this machine to 60A circle break under
240V and 50A circle break under 120V. If cutting machine whose power voltage
is 230V is connected wrong to AC 380V, that will cause components of inter-
machine are burned up.
 Make sure power cable is connected to power switch reliably and prevent from
oxidizing.
 Make sure power voltage is inside the waved range.

 OUTPUT CABLE CONNECTION
 Make sure copper screw of another end of torch is connected to gas-electrical
integration terminal then tighten them clockwise relation (prevent from leaking
gas).
 Connect the ground cable to the positive terminal of front panel then tighten it.
Note: The receptacle is keyed. Align the key on the work lead connector with the opening
at the top of the receptacle on the power supply.
Push the work lead connector all the way into the receptacle on the power supply and
turn clockwise, approximately 1/4 turn, until the connector is fully seated against the stop
in order to achieve an optimal electrical connection.
Caution: Ensure the work lead is fully seated in the receptacle
to prevent overheating.
CHECK
 Check if cutting machine is grounded reliably according to standard.
 Check if all connectors are connected firmly.
 Check if power voltage is correct.
NOTE THE FOLLOWING
 Ensure that the work clamp and the work piece make good metal-to-metal
contact. Remove rust, dirt, paint, coatings and other debris to ensure the power
supply makes proper contact with the work piece.
 For the best cut quality, attach the work clamp as close as possible to the area
being cut.
 Do not attach the work clamp to the portion of the work piece which will be cut
away.

OPERATION
PLEASE READ AND UNDERSTAND THIS ENTIRE SECITON BEFORE
OPERATING YOUR MACHINE. ONLY QUALIFIED PERSONNEL SHOULD
OPERATE THIS EQUIPMENT. OBSERVE ALL SAFETY INFORMATION
THROUGHOUT THIS MANUAL.
 OPERATIONS
ELECTRIC SHOCK can be fatal
Have an electrician install and service this machine and its equipment.
Turn the input power off at the fuse box, disconnect or unplug supply lines and
allow machine to sit for five minutes minimum to allow the power capacitors to
discharge before working inside this machine.
Do not touch electrically hot parts. Turn the input power OFF and unplug the machine from
the receptacle before working on this equipment.
FUMES AND GASES can be dangerous
Keep your head out of fumes.
Use ventilation or exhaust to remove fumes from breathing zone.
WELDING SPARKS can cause fires or explosions
Keep flammable material away.
Do not weld, cut or gouge on containers that have held or are currently holding
combustibles.
ARC RAYS can burn
Wear eye, ear and body protection.

 OPERATION STEPS
Turn on the system: Set the ON/OFF switch○ 14 to the ON (I) position. Screen will turn on
and will show the current volume after 5 Seconds.
Set the operation mode switch
Use the operating mode switch to select the type of work you want to perform.
For cutting expanded metal, grates, metal
containing holes, or any job that requires a
continuous pilot arc. Using this mode to cut standard
metal plate will reduce consumable life.
For cutting or piercing metal. This is the standard
setting for normal metal cutting.
For gouging metal. (Note: there are no gouging
consumables in the box. For plasma air gouging you
will need to buy the gouging consumables set
separately.)
For setting post flow, then you can adjust the
knob set the post flow time. When the digital display
does not flash, the setting is complete and the setting
will be saved automatically.
Set the 2T/4T model switch
2T/4T Locks the torch in the ON (fire) position.
With the 4T option selected, press the trigger to fire
the torch. You can then release the trigger while
continuing to cut. Press the trigger again to stop the
arc. The arc also stops if you lose transfer.
Adjust the air flow
Set the mode switch to Gas Check/Post Flow mode.

Adjust your air compressor’s output air flow and
pressure and make it is adequate to machine, open the
valve of your air compressor.
Use the flow meter which comes with your package
and test the air flow of your torch before use.
Press the trigger on the torch, electromagnetic valve
is starting and burner of torch should have air flowing
out. Make sure the metal ball is in the RED range so that
the output air flow is in a proper rate
Adjust the Pressure-Reducing Valve② and set the
input PSI for your cutting or gouging.
Turn the adjustment knob○ 6 to adjust the post flow
delay time.
Set the output AMPs
Press the trigger on the torch, electromagnetic valve is starting and burner of torch
should flow out gas and the Burner of pilot-arc cutter should spurt fire.
Turn the adjustment knob○ 6 to change the amperage. Make sure cutting current is
adequate to machine specifications according to thickness of cutting piece.
Keep a distance of 0.06Inch(1.5mm) from copper tip from the work piece, press the
trigger of the torch and burn/strike arc, sparks of arc striking will diminish
immediately. User can begin to cut.

 OPERATE THE SAFETY TRIGGER
The hand torches are equipped with a safety trigger to prevent accidental firings.
Hand torch cutting suggestions
Drag the torch tip lightly along the work piece to maintain a steady cut.
While cutting, make sure that sparks exit from the bottom of the work piece. The sparks should
lag slightly behind the torch as you cut (15° — 30° angle from vertical).
If sparks spray up from the work piece, move the torch more slowly, or set the output current
higher.
With either the 75-degree or 15-degree hand torch, hold the torch nozzle perpendicular to the
work piece so that the nozzle is at a 90° angle to the cutting surface. Observe the cutting arc
as the torch cuts.
If you fire the torch unnecessarily, you will shorten the life of the nozzle and electrode.
Pulling, or dragging, the torch along the cut is easier than pushing it.
For straight-line cuts, use a straight edge as a guide. To cut circles, use a template or a
radius cutter attachment (a circle cutting guide).