Unimig Viper Cut 30 Operating Manual
KUMJRVC30
OPERATING MANUAL
Please read and understand this instruction manual carefully
before the installation and operation of this equipment. © Welding Guns Of Australia PTY LTD 2018
1 YEAR
WARRANTY
(Power Source)
2 | Viper Cut 30 Manual
Thank you for your purchase of your UNIMIG VIPER Plasma Cutting Machine.
We are proud of our range of plasma cutting and welding equipment that has a proven track record of innovation, performance and
reliability.
Our product range represents the latest developments in Inverter technology put together by our professional team of highly skilled
engineers. The expertise gained from our long involvement with inverter technology has proven to be invaluable towards the evolution
and future development of our equipment range. This experience gives us the inside knowledge on what the arc characteristics,
performance and interface between man and machine should be.
Within our team are specialist welders that have a proven history of welding knowledge and expertise, giving vital input towards ensuring
that our machines deliver control and performance to the utmost professional level.
We employ an expert team of professional sales, marketing and technical personnel that provide us with market trends, market feedback
and customer comments and requirements. Secondly they provide a customer support service that is second to none, thus ensuring
our customers have condence that they will be well satised both now and in the future.
UNIMIG welders and plasma cutters are manufactured to be compliant with - AS/NZ 60974-1, guaranteeing you electrical safety and
performance.
WARRANTY
• 1 Year from date of purchase.
• Welding Guns Of Australia PTY LTD Ltd warranties all goods as specied by the manufacturer of those goods.
• This Warranty does not cover freight or goods that have been interfered with.
• All goods in question must be repaired by an authorised repair agent as appointed by this company.
• Warranty does not cover abuse, misuse, accident, theft, general wear and tear.
• New product will not be supplied unless Welding Guns Of Australia PTY LTD has inspected product returned for warranty and agrees
to replace product.
• Product will only be replaced if repair is not possible
• Please view full Warranty term and conditions supplied with machine or at www.unimig.com.au/warranty-registration/ or at the back
of this manual.
WARNING
USE COMPRESSED AIR ONLY
WITH THIS MACHINE
WARRANTY
Viper Cut 30 Manual | 3
CONTENTS
Warranty 2
Safety 4
AIR PLASMA CUTTING TECHNOLOGY 7
Viper Cut 30 - Technical Data 8
Front & Rear Layout 9
Set Up Procedure for PLASMA Cutting 10
Operating Procedure for PLASMA Cutting 12
SC30 Plasma Torch 16
Trouble Shooting 17
Warranty Terms 18
4 | Viper Cut 30 Manual
Welding and cutting equipment can be dangerous to both the operator and people in or near the surrounding working area, if the
equipment is not correctly operated. Equipment must only be used under the strict and comprehensive observance of all relevant
safety regulations.
Read and understand this instruction manual carefully before the installation and operation of this equipment.
Machine Operating Safety
• Do not switch the function modes while the machine is operating. Switching of the function modes during welding can
damage the machine. Damage caused in this manner will not be covered under warranty.
• Disconnect the electrode-holder cable from the machine before switching on the machine, to avoid arcing should the
electrode be in contact with the work piece.
• Operators should be trained and or qualied.
Electric shock: It can kill. Touching live electrical parts can cause fatal shocks or severe burns. The electrode and work
circuit is electrically live whenever the output is on. The input power circuit and internal machine circuits are also live when
power is on. In MIG/MAG welding, the wire, drive rollers, wire feed housing, and all metal parts touching the welding wire
are electrically live. Incorrectly installed or improperly grounded equipment is dangerous.
• Connect the primary input cable according to Australian and New Zealand standards and regulations.
• Avoid all contact with live electrical parts of the welding/cutting circuit, electrodes and wires with bare hands.
• The operator must wear dry welding gloves while he/she performs the welding/cutting task.
• The operator should keep the work piece insulated from himself/herself.
• Keep cords dry, free of oil and grease, and protected from hot metal and sparks.
• Frequently inspect input power cable for wear and tear, replace the cable immediately if damaged, bare wiring is
dangerous and can kill.
• Do not use damaged, under sized, or badly joined cables.
• Do not drape cables over your body.
• We recommend (RCD) safety switch is used with this equipment to detect any leakage of current to earth.
Fumes and gases are dangerous. Smoke and gas generated whilst welding or cutting can be harmful to people’s health.
Welding produces fumes and gases. Breathing these fumes and gases can be hazardous to your health.
Do not breathe the smoke and gas generated whilst welding or cutting, keep your head out of the fumes
• Keep the working area well ventilated, use fume extraction or ventilation to remove welding/cutting fumes and gases.
• In conned or heavy fume environments always wear an approved air-supplied respirator.
• Welding/cutting fumes and gases can displace air and lower the oxygen level causing injury or death. Be sure the
breathing air is safe.
• Do not weld/cut in locations near de-greasing, cleaning, or spraying operations. The heat and rays of the arc can react
with vapours to form highly toxic and irritating gases.
• Materials such as galvanized, lead, or cadmium plated steel, containing elements that can give off toxic fumes when
welded/cut. Do not weld/cut these materials unless the area is very well ventilated, and or wearing an air supplied
respirator.
Arc rays: harmful to people’s eyes and skin. Arc rays from the welding/cutting process produce intense visible and
invisible ultraviolet and infrared rays that can burn eyes and skin.
Always wear a welding helmet with correct shade of lter lens and suitable protective clothing including welding gloves
whilst the welding/cutting operation is performed.
• Measures should be taken to protect people in or near the surrounding working area. Use protective screens or barriers
to protect others from ash,glare and sparks; warn others not to watch the arc.
SAFETY
Viper Cut 30 Manual | 5
Fire hazard. Welding/cutting on closed containers, such as tanks,drums, or pipes, can cause them to explode. Flying
sparks from the welding/cutting arc, hot work piece, and hot equipment can cause res and burns. Accidental contact
of electrode to metal objects can cause sparks, explosion, overheating, or re. Check and be sure the area is safe before
doing any welding/cutting.
• The welding/cutting sparks & spatter may cause re, therefore remove any ammable materials well away from the
working area. Cover ammable materials and containers with approved covers if unable to be moved from the welding/
cutting area.
• Do not weld/cut on closed containers such as tanks, drums, or pipes, unless they are properly prepared according to
the required Safety Standards to insure that ammable or toxic vapours and substances are totally removed, these
can cause an explosion even though the vessel has been “cleaned”. Vent hollow castings or containers before heating,
cutting or welding. They may explode.
• Do not weld/cut where the atmosphere may contain ammable dust, gas, or liquid vapours (such as petrol)
• Have a re extinguisher nearby and know how to use it. Be alert that welding/cutting sparks and hot materials from
welding/cutting can easily go through small cracks and openings to adjacent areas. Be aware that welding/cutting on
a ceiling, oor, bulkhead, or partition can cause re on the hidden side.
Gas Cylinders. Shielding gas cylinders contain gas under high pressure. If damaged, a cylinder can explode. Because
gas cylinders are normally part of the welding/cutting process, be sure to treat them carefully. CYLINDERS can explode
if damaged.
• Protect gas cylinders from excessive heat, mechanical shocks, physical damage, slag, open ames, sparks, and arcs.
• Insure cylinders are held secure and upright to prevent tipping or falling over.
• Never allow the welding/cutting electrode or earth clamp to touch the gas cylinder, do not drape welding cables over
the cylinder.
• Never weld/cut on a pressurised gas cylinder, it will explode and kill you.
• Open the cylinder valve slowly and turn your face away from the cylinder outlet valve and gas regulator.
Gas build up. The build up of gas can causes a toxic environment, deplete the oxygen content in the air resulting in death
or injury. Many gases use in welding/cutting are invisible and odourless.
• Shut off shielding gas supply when not in use.
• Always ventilate conned spaces or use approved air-supplied respirator.
Electronic magnetic elds. MAGNETIC FIELDS can affect Implanted Medical Devices.
• Wearers of Pacemakers and other Implanted Medical Devices should keep away.
• Implanted Medical Device wearers should consult their doctor and the device manufacturer before going near any
electric welding, cutting or heating operation.
Noise can damage hearing. Noise from some processes or equipment can damage hearing.
• Wear approved ear protection if noise level is high.
Hot parts. Items being welded/cut generate and hold high heat and can cause severe burns.
Do not touch hot parts with bare hands. Allow a cooling period before working on the welding/cutting gun. Use insulated
welding gloves and clothing to handle hot parts and prevent burns.
SAFETY
6 | Viper Cut 30 Manual
CAUTION
1. Working Environment.
i. The environment in which this welding/cutting equipment is installed must be free of grinding dust, corrosive chemicals,
ammable gas or materials etc, and at no more than maximum of 80% humidity.
ii. When using the machine outdoors protect the machine from direct sun light, rain water and snow etc; the temperature of
working environment should be maintained within -10°C to +40°C.
iii. Keep this equipment 30cm distant from the wall.
iv. Ensure the working environment is well ventilated.
2. Safety Tips.
Ventilation
This equipment is small-sized, compact in structure, and of excellent performance in amperage output. The fan is used to
dissipate heat generated by this equipment during the welding/cutting operation. Important: Maintain good ventilation of the
louvres of this equipment. The minimum distance between this equipment and any other objects in or near the working area
should be 30 cm. Good ventilation is of critical importance for the normal performance and service life of this equipment.
i. Thermal Overload protection.
Should the machine be used to an excessive level, or in high temperature environment, poorly ventilated area or if the fan
malfunctions the Thermal Overload Switch will be activated and the machine will cease to operate. Under this circumstance,
leave the machine switched on to keep the built-in fan working to bring down the temperature inside the equipment. The machine
will be ready for use again when the internal temperature reaches safe level.
ii. Over-Voltage Supply
Regarding the power supply voltage range of the machine, please refer to “Main parameter” table. This equipment is of automatic
voltage compensation, which enables the maintaining of the voltage range within the given range. In case that the voltage of
input power supply amperage exceeds the stipulated value, it is possible to cause damage to the components of this equipment.
Please ensure your primary power supply is correct.
iii. Do not come into contact with the output terminals while the machine is in operation. An electric shock may possibly occur.
MAINTENANCE
Exposure to extremely dusty, damp, or corrosive air is damaging to the welding/cutting machine. In order to prevent any possible failure or fault
of this welding/cutting equipment, clean the dust at regular intervals with clean and dry compressed air of required pressure.
Please note that: lack of maintenance can result in the cancellation of the guarantee; the guarantee of this welding/cutting equipment
will be void if the machine has been modied, attempt to take apart the machine or open the factory-made sealing of the machine without
the consent of an authorized representative of the manufacturer.
TROUBLE SHOOTING
Caution: Only qualied technicians are authorized to undertake the repair of this welding/cutting equipment. For your safety and to avoid
Electrical Shock, please observe all safety notes and precautions detailed in this manual.
SAFETY
Viper Cut 30 Manual | 7
Electrode
Air Diffuser
Tip
Plasma Stream
Electrode Insert
Shield Cup
Plasma cutters work by passing an electric arc through a gas that is passing through a constricted opening. The gas can be air, nitrogen, argon, oxygen.
etc. The electric arc elevates the temperature of the gas to the point that it enters a 4th state of matter. We all are familiar with the rst three: i.e., Solid,
liquid, and gas. Scientists call this additional state plasma. As the metal being cut is part of the circuit, the electrical conductivity of the plasma causes the
arc to transfer to the work. The restricted opening (Tip) the gas passes through causes it to squeeze by at a high speed, like air passing through a venturi in
a carburettor. This high speed gas cuts through the molten metal. Plasma cutting was invented as the result of trying to develop a better welding process.
Many improvements then led to making this technology what it is today. Plasma cutters provide the best combination of accuracy, speed, and affordability
for producing a variety of at metal shapes. They can cut much ner, and faster than oxy-acetylene torches.
HOW A PLASMA CUTTER WORKS:
Basic plasma cutters use electricity to superheat air into plasma (the 4th state of matter), which is then blown through the metal to be cut. Plasma cutters
require a compressed air supply and AC power to operate.
Operation:
1. When the trigger is squeezed, DC current ows through the torch lead into the tip.
2. Next, compressed air ows through the torch head, through the air diffuser that spirals the air ow around the electrode and through the hole of the
cutting tip.
3. A xed gap is established between the electrode and the tip. (The power supply increases voltage in order to maintain a constant current through the
joint.) Electrons arc across the gap, ionizing and super heating the air creating a plasma stream.
4. Finally, the regulated DC current is switched so that it no longer ows to the tip but instead ows from the electrode to the work piece. Current and
airow continue until cutting is stopped.
NOTES:
The nozzle and electrode require periodic replacement. The electrode has an insert of tough high conductive material such as hafnium and cerium. This
insert erodes with use, also the tip orice will erode with use. Quality of the air used is paramount to longer life of electrodes and tips, in short clean dry air
gives longer parts life, the cleaner and dryer the better. We recommend use of a Plasma Air Filter.
What kinds of materials can the plasma cut?
Virtually any metal can be plasma cut including steel, stainless steel, aluminium, brass, copper, etc. Any thickness from 30 gauge through 30mm can be
cut, depending on the power of the plasma cutter used.
How Does Plasma Cutting Compare to Oxy-fuel (gas) cutting?
Plasma cutting can be performed on any type of conductive metal - mild steel, aluminium and stainless are some examples. With mild steel, operators will
experience faster, thicker cuts than with alloys.
Oxy-fuel cuts by burning, or oxidizing the metal it is severanceing. It is therefore limited to steel and other ferrous metals which support the oxidizing
process. Metals like aluminium and stainless steel form an oxide that inhibits further oxidization, making conventional oxy-fuel cutting impossible. Plasma
cutting however does not rely on oxidation to work and thus it can cut aluminium, stainless and any other conductive material. While different gasses can
be used for plasma cutting, most people today use compressed air for the plasma gas. In most shops, compressed air is readily available, and thus plasma
does not require fuel gas and compressed oxygen for operation.
Plasma cutting is typically easier for the novice to master, and on thinner materials, plasma cutting is much faster than oxy-fuel cutting. However, for heavy
sections of steel (25mm and greater), oxy-fuel is still preferred since oxy-fuel is typically faster and, for heavier plate applications high powered plasma
machines are required for plasma cutting applications.
What are the limitations to Plasma Cutting? Where is Oxyfuel preferred?
The plasma cutting machines are typically more expensive than oxy/acetylene. Also, oxy/acetylene does not require access to electrical power or
compressed air which may make it a more convenient method for some users. Oxyfuel can generally cut thicker sections (>25mm) of steel more quickly
than plasma.
AIR PLASMA CUTTING TECHNOLOGY
8 | Viper Cut 30 Manual
1 YEAR
WARRANTY
OVERVIEW
The VIPER CUT 30 is an inverter-based Plasma cutting machine produced using the
latest in IGBT technology. Low cost and portable this machine is reliable, robust and
stacked with features that you can expect from a quality Plasma Cutter.
The VIPER CUT 30 produces a high temperature plasma stream enabling effortless
cutting of all electrically conductive materials including steel, cast Iron, stainless
steel, copper, aluminium brass etc. Connection of the SC30 Plasma torch provides
effortless starting of the cut with powerful, fast and accurate cutting capability,
additional is the benet of longer life cycle consumable electrodes and cutting tips.
The contact start function allows the torch tip to be placed directly onto the work
piece during start up and also during the cutting process helping to provide more
accurate cutting and cleaner start of the cut.
The VIPER CUT 30 is an exceptional machine that is suitable for a wide range
of applications including sheet metal fabrication, light industrial use, site work,
automotive, ducting work, repair and maintenance services.
The VIPER CUT 30 gives you the best of both worlds – great portability, with the
power to get the job done. Built to our specication and manufactured in compliance
to AS/NZ60974-1
MACHINE PACKAGE: KUMJRVC30
Standard option includes: VIPER CUT 30 Machine, Direct connect SC30 Plasma
Torch 4m, Direct Connect 3M Earth Lead
TECHNICAL DATA
Power Supply / Phases (V-Ph) 240v - 1 +/- 15%
Duty Cycle @ 40°c as per AS/NZ60974-1 15% @ 30Amps
Rated Power (KVA) 7.5
Output Current Range (A) Plasma 20-30
Rated Output Voltage (V) 310
Insulation Class F
Protection Class IP21S
Plasma Arc Starting Pilot Arc
Air Flow Draw Off (l/min) 170
Air Flow Pressure (Bar) 5-6 (70-87 psi)
Cutting Thickness - Clean (mm) 12
Cutting Thickness - Severance (mm) 14
Dimensions (mm) 460 x160 x 320
Weight (kg) 11.6
Warranty 1 years machine only
Certication Approval AS/NZ60974-1
50505-48
Sub-Micronic
Cartridge Option
50500-12
Sub-Micronic
Air Filter Option
VIPER CUT 30 - TECHNICAL DATA
30 AMP INVERTER PLASMA CUTTER
Cuts: Steels, Stainless, Cast Iron, Brass, Copper. Aluminium
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