Related Manuals for Linde BOC Smootharc MIG 250
Summary of Contents for Linde BOC Smootharc MIG 250
- Page 1 MIG 250 Operating manual This machine is to be used only by appropriately trained operators in industrial applications. This product is an arc welding machine designed for INDUSTRIAL AND PROFESSIONAL USE.
- Page 2 BOC Smootharc MIG 250 Operating manual Welcome to a better way of welding This operating manual provides the basic knowledge required to operate these machines. With normal use and by following these recommended steps, your machine can provide you with years of trouble-free service.
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Page 3: Table Of Contents
BOC Smootharc MIG 250 Operating manual Contents Safety guidelines and precautions Periodic maintenance Health hazard information Warranty information Personal protection Terms Cylinder safety Limitations Cylinder valve safety Period Electrical shock Repairs Electromagnetic field User responsibility Metal Inert Gas (MIG) and Metal Active Gas (MAG) welding Switch on to electrical safety... -
Page 4: Safety Guidelines And Precautions
BOC Smootharc MIG 250 Operating manual Safety guidelines and precautions → Repair or replace defective cables immediately. → Never watch the arc except through lenses of the correct shade. → In confined spaces, adequate ventilation and constant observation are essential. →... -
Page 5: Health Hazard Information
BOC Smootharc MIG 250 Operating manual Health hazard information → Fumes from the welding of some metals could have an adverse effect on your health. Don’t breathe them in. If you are welding on material such as stainless steel, nickel, nickel alloys or galvanised steel, The actual process of welding is one that can cause a variety of hazards. -
Page 6: Cylinder Safety
BOC Smootharc MIG 250 Operating manual Back view of typical cylinder valve. Operator wearing personal protective equipment (PPE) in safe position. Cylinder safety Cylinder valve safety When working with cylinders or operating cylinder valves, ensure → Read labels and Safety Data Sheet (SDS) before use that you wear appropriate protective clothing –... -
Page 7: Electrical Shock
BOC Smootharc MIG 250 Operating manual Electrical shock BOC stock a huge range of personal protective equipment. This combined with BOC’s extensive retail network ensures fast, reliable service throughout the South Pacific. → Never touch ‘live’ electrical parts. → Always repair or replace worn or damaged parts. -
Page 8: Switch On To Electrical Safety
BOC Smootharc MIG 250 Operating manual Switch on to electrical safety for single-phase equipment BOC welding machines are designed and manufactured to conform to IEC 60974 or AS 60974. This Standard not only covers the machine but also the input cable and plug requirements including the size of the plug that should... - Page 9 BOC Smootharc MIG 250 Operating manual How important is the correct plug and mains power circuit will increase in temperature as well. That’s why it’s important input cable and plug on to understand input and output currents and to a welding machine? make sure that the input circuit is correctly rated ✓...
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Page 10: Package Contents
BOC Smootharc MIG 250 Operating manual Package contents Spool gun Package contents Power source with input cable and plug Binzel MB24KD 3 m MIG torch BOC Argon regulator 3 m work return lead 2 m gas hose with quick release Wire feed rollers Knurled groove 0.8–0.9/0.9–1.2... -
Page 11: Technical Specifications
BOC Smootharc MIG 250 Operating manual Technical specifications Specifications 250 MIG Part No. BOC250MIGLCD Input voltage Single phase 240 V ±15 % Frequency 50/60 Hz Maximum rated input current (I 33 A 1max Maximum effective supply current (I 14.8 A... -
Page 12: Installation
BOC Smootharc MIG 250 Operating manual Installation Installation for MIG/MAG process Wire feed installation Wire inch button Wire spool holder Wire feed unit MIG/MAG 7. Fit and tighten the [A] torch on the [10] output connection. Ensure correct torch liner and contact tip are selected. -
Page 13: Mig With Spool Gun
MIG with spool gun (Aluminium only) Spool compatibility The BOC Smootharc MIG 250 takes both D200 (requires spacer) and D300 size spools in the internal wire feeder and D100 in the spool gun. The 1. Select correct shielding gas for the application. Connect the gas spool gun is only used for aluminium welding synergic setting 4043Al cylinder to the regulator. -
Page 14: Control Panel
BOC Smootharc MIG 250 Operating manual Control panel Front panel of MIG 250 Multifunctional data display Main menu Previous window Data adjusting knob (left) Menu selection and adjustment knob (centre) Data adjusting knob (right) Description Function Multifunctional data display. Displays process, welding parameters, settings. -
Page 15: Operation
BOC Smootharc MIG 250 Operating manual Operation Starting up Main menu options 1. Ensure the machine is correctly plugged into the main circuit. 2. Proper PPE must be worn. 3. Ensure workplace safety, such as fume extraction and welding curtains are in place. - Page 16 BOC Smootharc MIG 250 Operating manual...
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Page 17: Mig/Mag Modes
BOC Smootharc MIG 250 Operating manual MIG/MAG modes MIG/MAG Steel Mix, MAG Steel CO₂, Flux Cored, MIG/MAG Stainless Steel, MIG/MAG Manual. Press main Turn centre Press centre menu button. selection knob and knob to confirm. select MIG/MAG function. Screen showing Press centre gas will appear. - Page 18 BOC Smootharc MIG 250 Operating manual Turn and press centre knob to select Run-In WFS. Adjust % figure by Press centre turning centre knob. knob to confirm. Turn and press centre knob to select Inductance. Adjust figure by Press centre turning centre knob. knob to confirm.
- Page 19 BOC Smootharc MIG 250 Operating manual Turn and press centre knob Press centre to select Spot Timer. knob to confirm. Using centre knob set Press centre Spot Timer at: knob to confirm. 0 sec for 2T function 0.1 sec for 4T function >0.1 sec for spot welding.
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Page 20: Mig Mode For Aluminium Wire (Spool Gun)
BOC Smootharc MIG 250 Operating manual MIG mode for aluminium wire (spool gun) This machine uses aluminium wire through a spool gun. Please ensure to installation section of this manual. To operate, please follow same you have installed the spool gun before welding with aluminium. Refer steps as 6.2 MIG Mode and select spool gun options. -
Page 21: Settings
BOC Smootharc MIG 250 Operating manual Settings Use this option for adjusting Units, Brightness, view software version, and Factory Reset. Error codes If you exceed the machine’s duty cycle it will stop operating. Allow the machine to cool before resuming welding. -
Page 22: Inductance
BOC Smootharc MIG 250 Operating manual Inductance 4T/2T trigger latch selection Inductance in welding is the control of current surges during short On all MIG machines there is no current or wire feed until the trigger on circuits. Consider dip transfer (short-circuiting arc) in action. The wire the torch is depressed. -
Page 23: Troubleshooting And Fault Finding
BOC Smootharc MIG 250 Operating manual Troubleshooting and fault finding Failure Analysis Troubleshooting No wire when torch No power. Investigate reasons for no power. trigger is pressed. Torch trigger is broken. Change the torch. Arc is unstable, and Welding parameters are incorrect. Current and Adjust welding parameters. -
Page 24: Periodic Maintenance
BOC Smootharc MIG 250 Operating manual Periodic maintenance The working environment or amount of use the machine receives should be taken into consideration when planning maintenance frequency of this machine. Preventative maintenance will ensure trouble-free welding and increase the life of the machine and its consumables. -
Page 25: Warranty Information
BOC Smootharc MIG 250 Operating manual Warranty information Terms Period The Smootharc machine has a limited warranty that covers The warranty is valid for 3 years from date of purchase provided the manufacturing and material defects only. The warranty is effective machine is used within the published specification limits. -
Page 26: Metal Inert Gas (Mig) And Metal Active Gas (Mag) Welding
BOC Smootharc MIG 250 Operating manual Metal Inert Gas (MIG) and Metal Active Gas (MAG) welding Typical MIG/MAG set up Torch Torch trigger Shroud Gas diffuser Contact tip Welding wire Shielding Weld Droplets Weld pool Introduction Successful welding depends the correct selection of consumables, power... - Page 27 BOC Smootharc MIG 250 Operating manual Extended self shielded flux cored wire nozzle In terms of gas shielding, there are two different ways in which this may To bring the welding current back to 250 amps it is necessary to be achieved with the FCAW process.
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Page 28: Metal Cored Arc Welding (Mcaw)
BOC Smootharc MIG 250 Operating manual Process schematic diagram for MIG/MAG, FCAW and MCAW Gas hose Continuous wire Wire feed unit Power cable Torch conduit Gas cylinder Welding torch Workpiece Earth clamp Power source Return cable If no external gas shield is required, then the flux fill must provide... -
Page 29: Metal Transfer Modes
BOC Smootharc MIG 250 Operating manual Typical metal transfer mode Schematic of dip transfer Globular Spray Short circuit Transfer Transfer Transfer Process Necking Arc re-ignition Metal Inert Gas (MIG) ✓ ✘ ✓ Arc established Metal Active Gas (MAG) Arc gap shortens Short circuit ✓... - Page 30 BOC Smootharc MIG 250 Operating manual Schematic of globular transfer Schematic of spray transfer Gas shroud Shielding gas Wire Droplets Weld Splatter Large droplet Workpiece Workpiece Spray transfer Rutile flux-cored wires will operate in this almost-spray transfer mode, at all practicable current levels. They are also able to operate in this mode In spray transfer, metal is projected by an electromagnetic force from for positional welding too.
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Page 31: Consumables
BOC Smootharc MIG 250 Operating manual Cast and Helix Cast Helix Cast – Diameter of the circle Helix – Vertical height Consumables Cast and helix The cast and helix of the wire has a major influence on the feedability of Chemical composition MIG/MAG wire. -
Page 32: Polarity
BOC Smootharc MIG 250 Operating manual Polarity 4T/2T trigger latch selection Many power sources are fitted with an optional reverse polarity On all MIG machines there is no current or wire feed until the trigger dinse connector. To achieve the optimum welding it is important on the torch is depressed. -
Page 33: Correct Application Techniques
BOC Smootharc MIG 250 Operating manual Electrical stickout Travel speed Contact Tube Setback Slow Normal Fast Standoff Distance Visible Stickout Arc length Electrical Stickout Gas Nozzle Contact Tube Slow Normal Fast Consumable Electrode Workpiece Short Normal Long Short Normal Long... -
Page 34: Recommended Mig/Mag Welding Parameters
BOC Smootharc MIG 250 Operating manual Recommended MIG/MAG welding parameters Argoshield Light Indicative Spray welding parameters Dip transfer transfer Material thickness (mm) 1–1.6 Welding position Horizontal / Horizontal / Horizontal / Horizontal / Horizontal Vertical Vertical Vertical Vertical Wire diameter (mm) 0.8–0.9... - Page 35 BOC Smootharc MIG 250 Operating manual...
- Page 36 © BOC Limited 2023. BOC is a trading name of BOC Limited, a Linde company. Reproduction without permission is strictly prohibited. Details given in this document are believed to be correct at the time of printing. Whilst proper care has been taken in the preparation, no liability for injury or damage resulting from its improper use can be accepted.