OWNER'S MANUAL MIG-270TPL
CONTENTS - 1.Safety……………………..………………..…………………………….…..……....……………………………………………………. 2 - 2.General Description……...………......……...…………………….………...……….....……………………………………….. 4 -3.Main Parameter…….……...…...........…….....………………………………….…..……….…………………………………… 6 - 4.Structure of welder…….……...…...........………………………..…………….…..……….…………………………………… 7 - 5.Installation ……………………………………………………………………………………………………………………………….. 8 - 6.Welding settings quick reference chart………………………………………………………………………………………. 12 - 7.
1.SAFETY Welding and cutting is dangerous to the operator, people in or near the working area, and the surrounding, if the machine is not correctly operated. Therefore, the performance of welding/cutting must only be under the strict and comprehensive observance of all relevant safety regulations. Please read and understand this instruction manual carefully before the installation and operation. ·The switching of function modes is possibly damaging to the machine, while the welding operation is performed.
2.GENERAL DESCRIPTION This welding machine is composed of the inverter MIG welder power supply with invariable voltage output external characteristics manufactured with advanced IGBT inverter technology designed by our company. With high-power component IGBT, the inverter convert the DC voltage, which is rectified from input 50Hz/60Hz AC voltage, to high-frequency 20KHz AC voltage; as a consequence, the voltage is transformed and rectified.
Operating environment Adequate ventilation is required to provide proper cooling for the MIG machine. Ensure that the machine is placed on a stable level surface where clean cool air can easily flow through the unit. The MIG machine has electrical components and control circuit boards which will be damaged by excessive dust and dirt, so a clean operating environment is essential.
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MIG-270TPL TYPE single-phase Power supply voltage (V) 220V15% Input current (A) 35 Power supply capacity (KVA) 8 Current adjustment range (A) 50～200 Output voltage (V) 15～24 Rated output current (A) 200 Rated output voltage (V) 24 Rated duty cycle (%) 30 Power factor 0.75 Efficiency (%) 85 Wire feeder type External/Internal Post-flow time (s) 拉丝 1 分体 0.6/0.8/1.0 Welding wire diameter (mm) Machine size (mm) 480×310×430 Machine weight (kg) 15 Plate thickness (mm) ≥0.
4.Structure of welder 1 15 2 14 3 13 4 5 6 12 7 11 10 8 9 1. Display: Welding voltage in MIG, Percentage in TIG, Low temperature time in TIG 2. Gas-check button 3. Wire-check button 4. Indicator for Cold welding in TIG 5. Function Selector: 2T/4T in MIG, 2T/4T in TIG, Cold welding, MMA 6. Indicator for Pulse in TIG 7. Selector: Wire diameter (Synergic mode)/Manual mode in MIG, Pulse in TIG 8. Parameter Selector in TIG 9. Parameter Adjust Knob 10.
20. 21. 22. 23. 24. 25. 26. 20 25 21 26 22 23 24 Wire tension adjustment Wire tension arm & support roller Wire input guide Wire drive roller Drive roller retainer Wire spool retainer Spool brake adjustment 27 28 29 30 31 32 33 27. 28. 29. 30. 31. 32. 33. 34. Torch trigger switch Torch “Euro” connector Workpiece earth clamp Earth lead quick connector Conical gas nozzle/shroud Welding tip Shroud spring Tip adapter 34 5.INSTALLATION 5.1. MIG Welding Set Up & Operation 5.1.1 Fitting the spool 5.1.
5.1.2 Loading wire feeder 5.1.2.1 release the wire feeder tension arm(21) by pivoting the wire feed tension adjuster(20) as pictured below. 5.1.2.2 check the wire drive roller(23) groove matches the selected MIG wire type and size. The drive roller will have two different sized grooves, the size of the groove in use is stamped on the side of the drive roller. For flux cored ‘soft’ wire, such as that used in gasless MIG welding, the drive roller groove has a serrated profit.
metal, with no corrosion, paint or scale at the contact point. 5.1.4 Setup for gas shielded MIG welding operation Note - Gas shielded MIG welding requires a shielding gas supply, gas regulator and gas shielded MIG wire. These accessories are not supplied standard with the RW1500MP. Please contact your local Repco branch for details. 5.1.4.1 Connect the MIG Torch Euro Connector (28) to the torch socket on the front of the welder (11).
Connection of Shield Gas Connect the CO2 hose, which come from the wire feeder to the copper nozzle of gas bottle. The gas supply system includes the gas bottle, the air regulator and the gas hose, the heater cable should be inserted into the socket of machine’s back, and use the hose clamp to tighten it to prevent leaking or air-in, so that the welding spot is protected. Please note: 1) Leakage of shielding gas affects the performance of arc welding.
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Basic welding guide MIG (GMAW/FCAW) Basic Welding Technique Two different welding processes are covered in this section (GMAW and FCAW), with the intention providing the very basic concepts in using the MIG mode of welding, where a welding gun is hand held, and the electrode (welding wire) is fed into a weld puddle, and the arc is shielded by an inert welding grade shielding gas or inert welding grade shielding gas mixture.
Position of MIG Torch The angle of MIG torch to the weld has an effect on the width of the weld. The welding gun should be held at an angle to the weld joint. (See Secondary Adjustment Variables below) Hold the gun so that the welding seam is viewed at all times. Always wear the welding helmet with proper filter lenses and use the proper safety equipment. CAUTION Do not pull the welding gun back when the arc is established. This will create excessive wire extension (stick-out) and make a very poor weld.
Distance from the MIG Torch Nozzle to the Work Piece The electrode wire stick out from the MIG Torch nozzle should be between 10mm to 20.0mm. This distance may vary depending on the type of joint that is being welded. Travel Speed The speed at which the molten pool travels influences the width of the weld and penetration of the welding run MIG Welding (GMAW) Variables Most of the welding done by all processes is on carbon steel. The items below describe the welding.
Establishing the Arc and Making Weld Beads Before attempting to weld on a finished piece of work, it is recommended that practice welds be made on a sample metal of the same material as that of the finished piece. The easiest welding procedure for the beginner to experiment with MIG welding is the flat position. The equipment is capable of flat, vertical and overhead positions. For practicing MIG welding, secure some pieces of 16 or 18 gauge (0.06” 1.5mm or 0.08” 2.
7.Range of welding current and voltage in CO2 welding Wire φ(mm) 0.6 0.8 1.0 Short circuit transition Granular transition Voltage (V) 17~19 18~19 18~21 Current（A） 40~70 60~100 80~120 Voltage (V) 25~38 26~40 27~40 Current（A） 160~400 200~500 200~600 -The option of the welding speed The welding quality and productivity should be taken into consideration for the option of welding speed. In case that the welding speed increases, it weakens the protection efficiency and speeds up the cooling process.
1.6 2.0 2.3 3.2 4.5 0 0~0.5 0.5~1.0 1.0~1.2 1.2~1.5 1.0 1.0 1.0 or 1.2 1.0 or 1.2 1.2 80~100 100~110 110~130 130~150 150~170 2.3 3.2 4.5 0.5~1.0 1.0~1.2 1.2~1.5 0.8/1.0 0.8/1.0 0.8/1.0 110~130 130~150 150~190 18~19 19~20 19~20 19~21 21~23 45~55 40~55 50~55 40~50 40~50 10~15 10~15 10~15 10~15 10~15 14~16 15~17 16~18 30~40/20~30 50~60/40~50 60~70/50~60 \ \ \ Gasless Parameter for flat fillet welding (Please refer to the following figure.) Plate thickness t（mm） Corn size I (mm) Wire φ(mm) 1.
1.2 1.6 2.0 2.3 3.2 4.5 2.5~3.0 2.5~3.0 3.0~3.5 3.0~3.5 3.0~4.0 4.0~4.5 1.0 1.0 ~ 1.2 1.0 ~ 1.2 2.3 3.2 4.5 0.5~1.0 1.0~1.2 1.2~1.5 0.8/1.0 0.8/1.0 0.8/1.0 1.0 ~ 1.2 1.0 ~ 1.2 1.2 70~100 90~120 100~130 120~140 130~170 200~250 Gasless 120~140 140~160 150~190 18~19 18~20 19~20 19~21 22~22 23~26 50~60 50~60 50~60 50~60 45~55 45~55 10~15 10~15 10~20 10~20 10~20 10~20 14~16 15~17 16~18 30~40/20~30 50~60/40~50 60~70/50~60 \ \ \ Parameter for Lap Welding (Please refer to the following figure.
9.CAUTION 1. Working environment ⑴ Welding should be carried out in a relatively dry environment with its humidity of 90% or less. ⑵ The temperature of the working environment should be within -10C to 40C. ⑶ Avoid welding in the open air unless sheltered from sunlight and rain, and never let rain or water infiltrate the machine. ⑷ Avoid welding in dusty area or environment with corrosive chemical gas. ⑸ Avoid gas shielded arc welding in environment with strong airflow. 2.
10.MAINTENANCE 1. Disconnect input plug or power before maintenance or repair on machine. 2. Be sure input ground wire is properly connect to a ground terminal. 3. Check whether the inner gas-electricity connection is well (esp. the plugs), and tighten the loose connection; if there is oxidization, remove it with sand paper and then re-connect. 4. Keep hands, hair, loose clothing, and tools away from electrical parts such as fans, wires when the machine is switched on. 5.
11.DAILY CHECKING To make best use of the machine, daily checking is very important. During the daily checking, please check in the order of torch, wire-feeding vehicle, all kinds of PCB, the gas hole, and so on. Remove the dust or replace some parts if necessary. To maintain the purity of the machine, please use original welding parts. Cautions：Only the qualified technicians are authorized to undertake the repair and check task of this welding equipment in case of machine fault. 11.1.
11.2. Welding torch Part Nozzle Check Remarks 1. Check if the nozzle is fixed firmly Possible gas leakage occurs due to the unfixed nozzle. and distortion of the tip exists. 2. Check if there is spatter sticking on Spatter possibly leads to the damage of torch. Use the nozzle. anti-spatter to eliminate the spatter. 1. Contact tip Wire feeding hose Check if the contact tip is fixed firmly. 2. Check if the contact tip is physically complete. 1.
11.3. Wire feeder Part Pressure adjusting handle Check Remarks 1. Check if the pressure-adjusting handle is The unfixed pressure-adjusting handle leads fixed and adjusted to the desired position. to the unstable welding output. 1. Check if there is dust or spatter inside the Remove the dust. hose or beside wire-feeding wheel. Non-agreement of the diameter of wire and 2. Check if there is a diameter agreement of wire-feeding hose possibly leads to the wire and wire-feeding hose.
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