Oxford MIGMAKER Series Instruction Manual Download Page 2

 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 

Pre installation & EMC information 

The installer of this equipment must make an assessment of the area before installing. 
It is the users responsibility to ensure that if any electromagnetic disturbances are detected to 
resolve this before continuing. 
As with other welding machines it is preferable to use this machine as far away as possible 
from sensitive electrical or electronic equipment such as computers, telecom equipment, 
safety critical equipment, transmitters and receiving equipment etc.  
There is a risk to sensitive equipment from radiated or conducted emissions from this 
machine.  
This machine is designed for use in industrial premises, when used in other environments 
there could be potential difficulties with electromagnetic interference with other equipment.  
Consideration must be also given to other premises as the emissions may not be limited to 
the installed premises.  
The following are methods to reduce emissions. 

1)  Keep all welding cables short close together and at ground level. 
2)  Equipotential bonding of metal components in the work area and bonding of the work 

piece can be considered however there are electrical safety implications for the 
operator with increased risk of shock if the electrode is touched; therefore it is 
important the operator is aware and adequately protected from making contact with 
the work and the electrode.

 Before bonding the area and work piece consult an 

experienced electrician.  

3)  This equipment must be properly maintained and all screws holding the sides etc kept 

in place. 

4)  Sometimes it may be necessary to fit additional mains input filters or even screen the 

cables and / or work area. This will involve consulting an experienced engineer. 

 
Electrical Installation 

This machine must be connected to the electricity supply by a competent person 
Do not connect this machine to any voltage other than that marked on the rear of the 
machine which is single phase 230V or 3 phase 400V 
230V single phase models

 Make sure your supply voltage matches the voltage model of the 

Machine. Ensure the green/yellow wire is connected to the earth terminal in the mains plug 
the other two wires are normally blue and brown wires which must be connected to the 
appropriate voltage, the blue is neutral and the brown is live, in some instances the colours of 

Oxford MIGMAKER single phase models 

Model   

 

180-1   

200-1    

240-1    

270-1    

330-1 

Supply voltage   

230V 

 

230V 

 

230V 

 

230V 

 

230V 

Welding range (amps)  20-170   

20-200   

20-240   

30-270   

30-330 

Duty cycle - 35% @ 

110 amps 

130 amps 

180 amps 

250 amps 

330 amps 

Duty cycle - 60% @ 

80 amps 

100 amps 

140 amps 

190 amps 

250 amps 

Voltage steps   

 

12 

 

12 

 

16 

 

16 

MIG wire range  

0.6-0.8mm 

0.6-1.0mm 

0.6-1.2mm 

0.8-1.2mm 

0.8-1.2mm 

Fuse rating slow blow  13A 

 

13A/16A 

16A 

 

20/32A   

32A 

Size app 

(ex rear wheels)

 

350Wx720Lx570H

 

350Wx720Lx570H

 

350Wx720Lx580H   350Wx720Lx650H  350Wx720Lx650H 

Weight approx   

48kg 

 

53kg 

 

60kg 

 

70kg 

 

88kg 

 

Oxford MIGMAKER three phase models 

Model   

 

 

270-3    

330-3 

Supply voltage   

 

400V 

 

400V 

Welding range (amps)   

30-270   

30-330 

Duty cycle - 35% @ 

 

250 amps 

330 amps 

Duty cycle - 60% @ 

 

190 amps 

250 amps 

Voltage steps   

 

16 

 

20 

MIG wire range  

 

0.6-1.2mm 

0.6-1.2mm 

Fuse rating slow blow   

16A 

 

16A 

Size app 

(ex rear wheels)

 

 

350Wx720Lx650H  350Wx720Lx650H 

Weight approx   

 

72kg 

 

89kg 

 

Summary of Contents for MIGMAKER Series

Page 1: ...s regarding this such as ISBN 0 7176 0704 6 Electrical safety in arc welding and many others When welding or cutting in an environment with increased risk of electric shock extra precautions must be observed Typical conditions with increased risk of electric shock are working in wet or damp conditions working inside vessels working in cramped conditions and exposed to conductive parts etc DO NOT T...

Page 2: ...g the sides etc kept in place 4 Sometimes it may be necessary to fit additional mains input filters or even screen the cables and or work area This will involve consulting an experienced engineer Electrical Installation This machine must be connected to the electricity supply by a competent person Do not connect this machine to any voltage other than that marked on the rear of the machine which is...

Page 3: ...ct gas flow is essential too little flow can result in a porous weak weld too much and the arc can become unstable and harsh The gas flow should be set on the regulator or flow meter to suit the welding conditions higher welding current needs a higher gas flow the correct flow rates are between 2 25 litres per min Start with a very low flow rate as a guide you should be able to only just hear the ...

Page 4: ... shielding gas The electrical arc creates the heat which melts both the welding wire and the material being welded the result is a weld pool which is protected from the atmosphere by the shielding gas or by flux if using a special gas less wire Without the shielding gas oxygen other gases would contaminate the weld pool to create a weak porous unusable weld The welding current used for MIG welding...

Page 5: ...t and trying to burn back to the contact tip then increase the wire speed a little or turn down the voltage setting if the arc is stubbing out or pulsing badly or if the wire is trying to push the torch away from the job then turn the wire speed down or increase the volts With a bit of practice it becomes easy to match the wire speed and voltage If you increase the voltage then generally you shoul...

Page 6: ...f an hour retry ideally reduce output power or welding time to prevent re occurrence Otherwise damage can occur Problem Machine stops welding fan also stops Solution Possible mains supply failure or blown mains fuse replace fuse check supply is OK Problem Machine stops welding but fan still runs Solution Possible torch fault or PCB fault remove welding torch remove the wire tensioner device so wir...

Page 7: ...wire see above in good condition check the tension on the wire tensioner Problem Weld has some small bubbles noticeable Solution Gas flow problem check the gas flow rate is adequate clean out the nozzle or replace nozzle if damaged make sure the torch is in good condition check for gas leaks from the torch or machine or regulator as air can be drawn into a leaking regulator or hose For any other f...

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