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SIP 05720 Autoplus 210ST Gas/Gasless Mig Welder

SIP 05720 Autoplus 210ST Gas/Gasless MIG Welder Gas or Gasless  is part of SIP’s ST range of Welding Machines.

This machine runs at a very high duty cycle at 175 amp @15% and a 30 amp current. This makes is much easier for welding on thin material such as bodywork.

This SIP Welding Machine is dual purpose, mean it can be welded as gas or gasless.

It has a turbo fan cooler, keeping the machine’s components at a suitable temperature. This prevents any overheating within the machine.

This welder can accept 0.6mm to 1mm wire on a spool of up to 15kg.

The SIP 05720 210ST sits on wheels, improving its manoeuvrability for the welder.

The SIP 210ST Autoplus machine comes with:

• MIG Torch, 2 meter cable
• Gas hose
• Earth lead
• 2 wire feed rollers
• 1 Year Warranty

To learn more about SIP mig welders, please check out SIP You Tube Video.

Compare the SIP 210ST to the Helvi Monomig 286 a great machine which offers a 3 year warranty.

What is Gasless Mig Welding? 

There is no such thing as gasless mig welding because in any weld the weld pool has to be protected from oxygen in the air.  This is done with gas to displace the air.

Gasless mig wire is self shielding wire which means the wire has a flux core.  When welding the arc melts the wire and in turn burns the flux which provides a gas shield around the weld pool.

Gasless mig welding uses a Self Shielding Wire and no cylinder of gas is required.

Which is better, solid wire or gasless wire?

Neither wire is superior to the other. They simply have different properties that work better on certain applications.

As far as performance is concerned, both types of wire produce sound welds with good weld bead appearances when applied correctly and used within the proper parameter settings.

Solid wire provides deep penetration in the root and usually has little spatter. Gasless wire has a larger ball-type transfer and produces low spatter levels.

As far as user appeal, both solid wire and gasless wire are relatively easy to use and are ideal for novice and occasional welders working in automotive, farming and home hobby applications.

Welder appeal on solid wire may be better on thinner applications because there is no slag to remove, it is ready to paint and the weld beads may be more aesthetically pleasing.

Final note on Gasless Mig Welding: 

You must also consider the location of the work when choosing between solid and flux-cored wire. In environments such as windy locations, solid wire or gas-shielded flux-cored wire are more difficult to use because exposing the shielding gas to wind can compromise the weld integrity.

Typically, the loss of shielding gas will produce porosity visible in the weld bead.

Since self-shielded flux-cored wire does not require external shielding gas, it is also more portable than solid wire.

This portability is ideal in agricultural applications where field equipment can break down far from the shop.

If you are welding thicker metals (16 gauge and above), self-shielded flux-cored wire also provides excellent penetration.

SIP 05720 Autoplus 210ST Gas/Gasless Mig Welder