Linlong Welding · Model buying guide
Linlong MMA120GDps 115/220 V Compact Stick and Lift TIG Welder
The Linlong MMA120GDps is a 3.5 kg stick welder with Lift TIG, listed for single-phase 115 V and 220 V supplies. Both give 120 A at 30% and 90 A continuous. On 115 V it draws 44.3 A against 16.9 A on 220 V, so fix the supply version and the circuit first.
By WeldOrigin Editorial · Sources checked
What the manufacturer publishes
Values as the manufacturer publishes them for this model, with the source for each line.
- Supply
- Single-phase 115 V ±15% and 220 V ±15%; 50/60 Hz [1]
- Rated input
- 115 V: 5.1 kW, 44.3 A. 220 V: 3.7 kW, 16.9 A [1]
- Duty cycle
- Both supplies: 30% at 120 A, 100% at 90 A (40°C, ten-minute cycle) [1]
- Current range
- 10–120 A on 115 V; 15–120 A on 220 V [1]
- Electrodes
- 1.6–2.5 mm [1]
- Modes
- MMA and Lift TIG; VRD control in MMA as stated by Linlong [1]
- Weight and protection
- Net 3.5 kg / 3.6 kg by supply column; IP21, insulation class F [1]
A 3.5 kg stick welder that also does Lift TIG
Linlong's MMA120GDps is a small machine for stick welding (MMA) that also offers Lift TIG. Its table has two supply columns, 115 V and 220 V, each ±15% at 50/60 Hz. Output tops out at 120 A on both. The low end is 10 A on 115 V and 15 A on 220 V. It takes electrodes from 1.6 to 2.5 mm.
Net weight is 3.5 kg in one column and 3.6 kg in the other, light enough to carry in one hand to a repair job. The machine is rated IP21 with class F insulation, and Linlong lists VRD control in stick mode. If you need more current than this, compare the larger MMA-G series, where the 40°C ratings rise with machine size.
[1]One model name, two supply columns
Buying guidance
Linlong prints 115 V and 220 V data under the same model name, with no word on whether these are two market versions or one unit that changes supply by itself. Ask which revision you are being quoted, how it selects voltage, and for its nameplate. Treat it as a dual-voltage machine only once Linlong has said so in writing.
This matters if the welder moves between sites or goes to a market with a different supply. State your voltage, frequency, plug type and destination, and ask for the manual for that version. Matching maximum output in both columns leaves open whether the input parts, approvals and supplied cables are the same.
[1]Check the 115 V circuit with care
Buying guidance
On 115 V the machine is rated at 5.1 kW input and 44.3 A. On 220 V the figures are 3.7 kW and 16.9 A. Keep these published values as they stand, without recalculating them. The 115 V current is the one to watch: a small, light welder can still ask more of a repair site's socket than the circuit can give. Send the full table and manual to whoever looks after the installation.
Linlong publishes no installation design or generator approval. Ask for the protection, earthing and cable requirements of the quoted version. If Linlong corrects any figure in its reply, file the dated correction with the order. Being easy to carry says nothing about the outlet it plugs into.
[1]120 A in bursts, 90 A without a break
Buying guidance
Both columns give 30% at 120 A and 100% at 90 A, at 40°C over ten minutes. For long runs, plan on 90 A and treat 120 A as a short-burst figure. Carrying weight and sustained output are separate questions, so weigh the 3.5 kg body and the duty cycle on their own terms.
Describe the work: electrode classification and diameter, welding position and how long the arc stays on. The 1.6–2.5 mm range covers small rods, and electrode chemistry and joint acceptance still need checking. Ask for a trial with the exact electrode and workpiece you will order. Include the holder, return cable and connectors in the load check, since they carry the same current.
[1]Lift TIG and VRD: what ships in the box
Buying guidance
Linlong names MMA, Lift TIG and VRD control in stick mode. Ask for the VRD threshold, the instructions for each mode and any safety report your market requires, if those affect your purchase.
Lift TIG needs a torch, gas control and accessories that may or may not come with the welder. Ask for the compatible torch and the list of what is included. The minimum current differs by column, 10 A on 115 V and 15 A on 220 V, so try the chosen revision on your low-current work. Linlong lists no AC TIG or aluminium capability; if the job needs either, raise it in the enquiry.
[1]Close these out before you order
Buying guidance
Get Linlong's written reply on four points.
Whether the quoted unit is a 115 V version, a 220 V version or one machine that handles both, with its nameplate and manual.
The circuit, protection and earthing it needs on your supply.
The holder, leads, Lift TIG torch and gas parts included in the price.
A sample weld with your electrode on your material, plus the installation and service documents for that revision.
[1]Compare the complete configuration
Swipe the table sideways to read the quotation checks.
| Item | Published scope | Before accepting the quote |
|---|---|---|
| 115 V version | Input 44.3 A at 5.1 kW; output 10–120 A. [1] | Have the circuit checked, and confirm which version ships. |
| 220 V version | Input 16.9 A at 3.7 kW; output 15–120 A. [1] | Ask for the plug, cables and approvals of this version on their own. |
| Continuous work | 90 A at 100% on both supplies. [1] | Check your electrode and joint at that current. |
| Lift TIG kit | Lift TIG listed as a mode. [1] | Ask whether the torch and gas parts are included. |
| Holder and leads | Electrodes 1.6–2.5 mm. [1] | Confirm the holder and cable rating. |
A useful brief for the supplier
Fill in each item. Ask the supplier to respond against the same specification so two offers can be compared.
- Supply voltage, frequency, destination country and any moves between sites.
- A request for the exact nameplate, and whether the two supplies mean two versions or one switching unit.
- Electrode classification, diameter, base material and welding position.
- Your mix of continuous and short-burst work, set against 90 A and 120 A.
- The holder, leads and any Lift TIG torch or gas parts you expect.
- A sample weld on your work and the installation and service documents for the model.
Buyer questions
Does it switch between 115 V and 220 V automatically?
Linlong publishes data for both but gives no detail on the changeover or on separate versions. Ask Linlong which version it is offering and for that unit's manual. [1]
Can it weld at 120 A continuously?
Its continuous rating is 90 A. The 120 A figure carries a 30% rating, at 40°C over ten minutes. [1]
Is a household socket enough on 115 V?
The 115 V column lists 44.3 A input current. Have an electrician check your circuit against the manual for the exact unit. [1]
Which electrodes does it take?
Linlong lists 1.6–2.5 mm electrodes. Name the classification you use and ask for a sample weld with it. [1]
Sources
Figures come from the manufacturer's published data, checked on the date shown. Before ordering, ask for a written, model-specific answer on availability, certificates, delivery and warranty.
- Linlong MMA120GDps model page · Linlong official catalogue
Manufacturer publication · Checked 2026-10-11
Linlong's page for the MMA120GDps, with the feature list and a two-column table of input, current, duty and weight figures.
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