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<blockquote data-quote="El arado" data-source="post: 1111916" data-attributes="member: 11443"><p>When buying a welder you must consider what you want to do with it, e.g. what thickness of material you want to weld? how long will you be welding for? etc. Whilst a MIG is versatile and easy to use, power output limits what you can weld in a single pass. You can weld thicker sections but you must turn the power up a little (to get the penetration) and multiple pass. Then you are faced with the Duty Cycle problem, the higher the duty cycle the less time you will spend twiddling your thumbs waiting for the welder to cool down. The 6kVA generator the OP has will allow him to connect a decent 200A MIG, the Parweld 160 has a very low duty cycle, its a "tacker", probably a good m/c but if you have a lot of welding to do you will be drinking a lot of tea! He should talk to TallGuy, he has a combo and is very happy with it, its a very good option, e.g. if you needed to weld dissimilar or high spec' metals etc, its a lot cheaper to buy a few electrodes that a roll of MIG wire. Also you will effect a much stronger weld. Very rarely will a MIG weld break, what usually happens is that the weld breaks away from the parent metal, this is because the energy in the arc is very intense. It creates a "brittle" (for want of a better word) area where the weld joins the parent metal, you do not get this with MMA. So the combo is a very sensible option - buy the largest that suits the generator and his pocket.</p></blockquote><p></p>
[QUOTE="El arado, post: 1111916, member: 11443"] When buying a welder you must consider what you want to do with it, e.g. what thickness of material you want to weld? how long will you be welding for? etc. Whilst a MIG is versatile and easy to use, power output limits what you can weld in a single pass. You can weld thicker sections but you must turn the power up a little (to get the penetration) and multiple pass. Then you are faced with the Duty Cycle problem, the higher the duty cycle the less time you will spend twiddling your thumbs waiting for the welder to cool down. The 6kVA generator the OP has will allow him to connect a decent 200A MIG, the Parweld 160 has a very low duty cycle, its a "tacker", probably a good m/c but if you have a lot of welding to do you will be drinking a lot of tea! He should talk to TallGuy, he has a combo and is very happy with it, its a very good option, e.g. if you needed to weld dissimilar or high spec' metals etc, its a lot cheaper to buy a few electrodes that a roll of MIG wire. Also you will effect a much stronger weld. Very rarely will a MIG weld break, what usually happens is that the weld breaks away from the parent metal, this is because the energy in the arc is very intense. It creates a "brittle" (for want of a better word) area where the weld joins the parent metal, you do not get this with MMA. So the combo is a very sensible option - buy the largest that suits the generator and his pocket. [/QUOTE]
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