150 amp mac afric mig mag welder

The electrons and gas ions tend to remove the surface oxides and scale usually present. When using a DC welder without high frequency facility, the arc can be stuck on the work piece or on a piece of copper or steel scratch start and then carried to the weld starting point. Do not use a carbon block for starting the arc as the electrode becomes contaminated causing the arc to wander. The T. When using a welder fitted with high frequency facility it eliminates the need for touching the work piece as the high frequency is automatically turned on to assist in establishing the arc and is automatically turned off as soon as the arc is established.

The welder also has a solenoid valve that opens to allow gas flow when triggered on the torch and shuts off after the trigger is released. If water cooler is fitted to the system a water cooled torch is required and water flow is continuous while the circulator pump is running.

The depth of penetration results from the heat produced during the electrode negative - portion of the AC cycle. Because cleaning action is inherent in electrode positive welding, any oxide film on the work is broken up during the electrode-positive portion of the AC cycle.

Zirconiated tungsten electrodes are generally used when welding aluminium due to being able to carry slightly higher currents and have a longer life than pure tungsten electrodes. The AC welders with high frequency facilities are normally fitted with solenoid valves that regulate the gas flow through torch trigger activation. If water cooler is fitted to the system a water cooled torch is required and water flow through the torch is continuous while the circulator pump is running.

The process is ideal for welds on thin material, root passes and small parts where quality and finish is important. The ability of adding filler metal independently of the arc current, that can be operated at very low amperages, with very little spatter loss and with a stable arc, is a strong consideration especially on small thin walled parts.

The only disadvantages of the T. The filler rod end should not be moved out of the inert gas shielding area of the torch. This is to prevent the hot end from oxidizing with the resultant contamination in the weld pool, when it is dipped into it. Pre-flow of gas before the arc is established and post-flow after the weld is completed also prevents oxidation and allows the filler alloy to wet and flow properly.

At the end of the weld the current should be decreased gradually to avoid a crater forming with the possibility of crater crack developing. Adding a small amount of filler metal at the end of the weld, just before the arc is extinguished, is good practice. Many joints of thin material can be joined without adding filler material by fusing them together such as corner joints, edge joints etc.

On establishing the arc, the torch is moved at a constant speed to the end of the weld. Midrange welding speed Welding speed mm p. Argon gives best cleaning. Size of Tungsten Electrode Medium 2. The machine has no solenoid gas valve and gas flow is controlled manually by the operator by turning the knob, mounted on the torch, to the required volume.

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DC Rectifier or Inverter power sources with high frequency facility are used for automatic arc ignition T. These machines are fitted with a contactor and a means of controlling arc current as well as a solenoid valve for automatic gas flow control by the welder. The control of arc current can either be pre — set at the machine or through current control mounted on the torch or by using a foot control unit.

These machines normally also have pre — set control of gas flow before starting the arc and gas flow off after completing the weld. An additional feature can be included to pulse the weld which allows root pass welds, welds on thin material and overhead welds to be made with less chance of melt through. Aluminium, Copper, Nickel etc. The DC welding side is as per the above comments. For AC welding the high frequency is on continuously and the power supply can vary the positive and negative half cycles of AC current to favour either cleaning action or penetration.

Mig welder for sale

This feature is useful for welding aluminium where adjustments must be made based on the thickness and cleanliness of the joint. Current and gas flow control is as per above. The D. In other words, the electrons flow from the electrode to the work piece. These units have HFS High frequency start which enables it to weld non-ferrous metals, such as aluminium. These units can also weld metals from the group of ferrous types, such as mild steel, stainless steel, ECT. When TIG welding, argon gas must be used, for shielding purposes of the weld.

These units have many important features, such as: These units come standard with the following accessories: A 10 Welding thickness mm: HF vibration 12 Input frequency HZ: This unit is ideal for most types of metal applications, such as non-ferrous and ferrous types of metal. Ideal for thin sheet metal welding for the DIY enthusiast and workshop operator. Used mainly for the repair on alloy metals and aluminium, and mild steels in the automotive industry. Related products: The system uses continuous small diameter solid wire and an externally supplied gas or mixtures of gasses.

The shielding gas can be Helium, Argon, Carbon dioxide or mixtures thereof. With these various metals the welding techniques and weld procedures may vary widely. Welding is either semi-automatic, using a hand-held torch manual through which the wire is fed automatically, or fully-automatic equipment can be used. Metal transfer achieved using the M. With spray arc, drops of molten metal detach from the wire and move through the arc column to the work piece. With the short circuiting method, metal is transferred to the work piece when the tip of the wire contacts the molten metal.

In short — circuit welding globular , lower current, low voltages and small diameter wire is used and the metal is transferred with each short — circuit rather than across the arc as in spray arc welding. This method results in low heat input with the minimum of distortion and used on thin or poor fit- ups and bridging wide gap applications. Spray arc M. The spray arc method is normally recommended for thicker sections requiring heavy single or multi-pass applications where deposition rate is important.

Gas Metal Arc M. Some manufacturers also provides Spot Welding features on their equipment which replaces either riveting or where T. As with all welding processes, the correct setup and maintenance of M.

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This equally applies to the M. It is also good practice to have the torch cable as straight as possible to ensure continuous successful wire feeding. When welding non-ferrous metals i. Aluminium, Copper or Nickel alloys it is highly recommended to use a separate torch specifically for these alloys, than the one used on steel alloys, and that the torch cable length is as short as possible and kept as straight as possible. Typical uses for this plasma cutter: The Plasma Arc Cutting system employs the use of an electric arc and a pressurized volume of ionized air forced through a small orifice TIP fitted between the electrode in the plasma torch and the work piece to be cut.

This constricted, high speed and high temperature plasma arc stream cuts through metal in a concentrated localized area and the molten metal is blown away by the high velocity arc and air steam. The Plasma Arc Cutting process is capable of cutting and gouging most Ferrous steel and Non- Ferrous Aluminium, Copper etc metals producing a clean narrow cut width determined by the tip orifice size and smoother surfaces. The process can be used with either a hand held torch or on automated systems.

The Plasma Power source has drooping current characteristics, using higher voltages than standard welding machines and the torches are well insulated to protect the operator against the high voltages present.

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The majority of Plasma Arc Cutters today have high frequency arc starting features meaning that non base metal contact is used as opposed to machines without high frequency that require scratch start to initiate the arc. Hand cutting torches using stand-off guides determines tip distance from work piece enables the operator to rest the torch on the work piece and by using a template or straight edge is able to cut straight or profile edges cleanly and accurately.

Long extended tips can be fitted for maximum visibility giving a clear view of the cut to be made either in the stand-off or drag position. The tips contain an orifice which constricts the plasma arc. The tips come in various orifice sizes and also gradually wear with use and must be replaced when the arc cut becomes too wide. Due to the alloying denseness and higher electrical resistance of Stainless Steel the thickness of cut achieved per cutting machine capacity is considerably lower than steel.

All manufactures of Plasma Arc Cutting equipment indicate the cutting capacity when cutting various metals. When cutting a circle the cut is started at the plate leading edge towards the circle edge or a hole is pierced in the centre of the circle and cut towards the circle edge. The operating voltages for Plasma Arc Cutting can reach volt D.

Before using the system the operator must ensure that the torch cable is not damaged or punctured and that the electrode, tip and shield cup is fitted correctly, securely and in good condition. All access panels must be closed at all times when the power is connected. It is recommended that periodic cleaning using dry compressed air, of the interior of the power source is done to ensure that metal containing dust does not damage the electronic components. When this is done the power to cutter must be disconnected first for you own safety.

Fumes and gases produced by the Plasma Arc Cutting can be hazardous to health and must be avoided. Use the necessary respiratory protection masks or respirators when cutting in unventilated or confined areas. Sparks from the Plasma Arc Cutting can be a fire hazard and all combustible material and solvents should be kept away from the cutting area. The Plasma Arc emits intense, visible, infrared and ultraviolet radiation which can be harmful to the eyes and skin.

The same eye and skin protection normally used for GTA T. Clean or replace Welding arc is load and Current setting is to high Check recommended setting according to spatters excessively electrode type or size Polarity setting is wrong Check recommended polarity. Never operate switch while switch while welder is under load welder is under load.

Contact ralph on Thermamax mig welder in good condition. Erlsi is suitable for joining stainless steels of the type and types. Welding speed is higher that or l due to improved weldability of the Tradeweld mig a wd inverter welder machine. Working condition can be viewed at 16 duminy street parow east. Mig Welder in great condition A real bargain.

Mat - amp - r mat - amp - r mat - amp - r supplied brand new by gray hound supplies, comes with 2 year warranty. MIG welder for sale Mac afric welder. Mig used only few times. Serviced by afrox fitted complete with large gas bottle , gauge, hose, roll of wire gas bottle full of gas plus the trigger cable excellent condition.

Mig welder with Matweld amp mig tig and arc welder.

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Synergic mig welder semi automatic supplied complete with mig torch, earth cable, flow meter, electrode holder 2 year Lincoln 3 phase mig welder Mat, welder watercooler: Mig multi process add09 pt-mat, matweld extra mig a: Mig welder complete. Probably your machines overloaded. Check your fuses F1 and F2 and if they are open replace them. Both fuses are located at left hand side of machine, open it and you will find them on the bracket.

Good Luck. If this was useful please vote, thanks. Posted on Apr 28, Click "Add" to insert your video. Dec 20, Welding Tools. Jul 26, Welding Tools. Jun 25, Welding Tools. Nov 15, Welding Tools. May 22, Inverter Welding Tools. Oct 12, Inverter Welding Tools. Inverter Volt Tig Arc Inverter Welding Tools. Answer questions. It's getting power on but no output is there. At output terminal only 7vdc is showing. Please suggest me solution. Want Answer 1 Clicking this will make more experts see the question and we will remind you when it gets answered.

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