Hobart Welding Products 150 Typical MIG Process Control Settings, Wire Recommendation Wire Speed

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7-2. Typical MIG Process Control Settings

NOTE

These settings are guidelines only. Material and wire type, joint design, fitup, position, shielding gas, etc. affect settings. Test welds to be sure they comply to specifications.

Material thickness determines weld

 

 

parameters.

1/8 or

Convert Material

 

.125 in

 

Thickness to

 

 

 

 

Amperage (A)

 

 

(.001 in = 1 ampere)

 

 

.125 in = 125 A

Wire Size

Amperage Range

.035 in

 

.023 in

30 – 90 A

.030 in

40 – 145 A

.035 in

50 – 180 A

 

Wire

Recommendation

 

Wire Speed

 

Size

 

(Approx.)

 

 

 

 

 

 

 

 

 

 

 

.023 in

3.5 in per ampere

3.5 x 125 A = 437 ipm

 

.030 in

2 in per ampere

2 x 125 A = 250 ipm

 

.035 in

1.6 in per ampere

1.6 x 125 A = 200 ipm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Low voltage: wire stubs into work

High voltage: arc is unstable (spatter)

Set voltage midway between high/low voltage.

Select Wire Size

Select Wire Speed (Amperage)

125 A based on 1/8 in material thickness

ipm = inch per minute

Select Voltage

Voltage controls height and width of weld bead.

Wire speed (amperage) controls weld pe- netration (wire speed = burn-off rate)

Ref. ST-802 083

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Contents Processes OM-210 088DDescription From Hobart to You Table of Contents Page Arc Welding Hazards Symbol UsageMarks a special safety message Electric Shock can killFlying Metal can injure eyes ARC Rays can burn eyes and skinWelding can cause fire or explosion Buildup of GAS can injure or killPrincipal Safety Standards EMF Information About PacemakersUN Choc É Lectrique peut tuer Signification des symbolesConsignes DE Securite Lire Avant Utilisation LES Fumé ES ET LES GAZ peuvent ê tre dangereuxDES Particules Volantes peuvent blesser les yeux LE Soudage peut provoquer un incendie ou une explosionLE Bruit peut affecter l’ouïe ’EMPLOI Excessif peut Risque D’INCENDIE OULA Chute DE L’APPAREIL peut blesser DES Organes Mobiles peuvent provoquer des blessuresInformation sur les champs é lectromagné tiques Principales normes de sé curitéConsignes relatives aux stimulateurs cardiaques Specifications SpecificationsVAC Model Overheating Duty Cycle And Overheating30%dutycycle at 90 amps Minutes Welding Reduce Duty Cycle MinutesVolt-Ampere Curves Changing Polarity InstallationInstalling Welding Gun Process/Polarity TableInstalling Gas Supply Flow Adjust460 mm 18 in 457 mm of space for airflow Do not move or operate unit Where it could tipL2 L1 230 VAC Standard Wire Spool 8 Lb Wire Spool 4 Electrical Service Guide For 230 VAC ModelInstalling Wire Spool And Adjusting Hub Tension Adjusting Hub TensionCut off wire. Close and latch door Threading Welding WireRemove gun nozzle and contact tip Operation Voltage SwitchPower Switch ControlsWeld Parameters For 120 VAC Model Weld Parameters For 230 VAC Model Disconnect power before maintaining Maintenance &TROUBLESHOOTINGRoutine Maintenance Overload ProtectionTurn Off power before replacing contact tip Changing Drive Roll Or Wire Inlet GuideReplacing Gun Contact Tip Disconnect gun from unit Cleaning Or Replacing Piecemaker 14-A Gun LinerTo Reassemble Gun Secure power cord plug in receptacle see Section Troubleshooting TableTrouble Remedy OM-210 088 Electrical Diagram OM-187 926Circuit Diagram For 120 VAC CSA Model Circuit Diagram For 230 VAC Model Typical MIG Process Connections Regulator Flowmeter Wire Feeder Power Source Shielding GasMIG Welding Gmaw Guidelines Gun Workpiece Work ClampSelect Wire Size Typical MIG Process Control SettingsWire Recommendation Wire Speed Select VoltageHolding And Positioning Welding Gun Short Normal Long Conditions That Affect Weld Bead ShapePush PerpendicularDrag ShortNormalLongGood Weld Bead Characteristics Poor Weld Bead CharacteristicsGun Movement During Welding Troubleshooting Excessive Penetration Troubleshooting Excessive SpatterTroubleshooting Porosity Possible Causes Corrective ActionsTroubleshooting Incomplete Fusion Troubleshooting Lack Of PenetrationTroubleshooting Burn-Through Troubleshooting Distortion Troubleshooting Waviness Of BeadWeld bead Application Common MIG Shielding GasesFlat & Horizontal1 Fillet Parts List Main AssemblyDia Part Mkgs Description Quantity Gun And Cable Assembly, Piecemaker 14-A 379 177 177282A-9 177282A-6 024 H 379 177282A-7379 177 177282A-8 379 177 177282A-10 024 H 177282A-11202 Optional Drive RollsOptions For One Small Gas CylinderService SupportHobart Welding Products Contact your Distributor forCall

120, 150 specifications

Hobart Welding Products has long been recognized for delivering high-quality welding solutions, and the Hobart 150,120 welder is no exception. This versatile, compact welder is designed to meet the needs of both hobbyists and professionals alike, making it a popular choice among welders in various industries.

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The welder is equipped with a robust 30-140 amp output range, allowing users to tackle a wide range of welding tasks. This output capability supports a variety of materials, including mild steel, stainless steel, and aluminum, with thicknesses up to 1/4 inch. Whether you're working on auto repair, fabrication projects, or DIY tasks around the house, the Hobart 150,120 is well-suited for the job.

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In terms of technology, the Hobart 150,120 utilizes a MIG welding process that simplifies the welding experience. This process feeds a continuously welding wire through the welding gun, reducing the need for frequent reloading and ensuring a smooth, consistent weld. The inclusion of a gas solenoid also enables users to switch between gas-shielded and flux-cored wire, providing versatility for different applications.

Lastly, the compact design of the Hobart 150,120 makes it portable and easy to store, which is particularly advantageous for users with limited workspace. With its combination of robust features, advanced technologies, and user-friendly operation, the Hobart 150,120 welder stands out as an excellent choice for anyone looking to achieve high-quality welds with efficiency and ease. It firmly establishes Hobart Welding Products as a leader in the welding market.
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