Linlong Welding · Model buying guide
Linlong MIG90 110 V MIG and Flux-Cored Wire Welder
The Linlong MIG90 is a small single-phase 110 V wire welder with a 30–90 A range, a 0.9 kg reel and 0.6 or 0.8 mm wire. It is rated 25% at 90 A and draws 24.8 A, so check your circuit and how long each weld runs before you ask for a price.
By WeldOrigin Editorial · Sources checked
What the manufacturer publishes
Values as the manufacturer publishes them for this model, with the source for each line.
- Input
- Single-phase 110 V ±15%, 50/60 Hz; rated 2.9 kW and 24.8 A [1]
- Output
- 30–90 A; welding voltage 14–20 V [1]
- Duty cycle
- 25% at 90 A, 40°C, ten-minute cycle; no 60% or 100% point published [1]
- Wire
- 0.9 kg reel; iron wire 0.6 and 0.8 mm [1]
- Polarity
- Switchable output polarity for solid and flux-cored wire [1]
- Weight
- Net 9.3 kg; gross 10.8 kg [1]
- Carton size
- 415 × 370 × 320 mm [1]
- Enclosure
- IP21; insulation class F [1]
A compact wire welder for occasional repair work
Linlong presents the MIG90 as a compact wire welder suited to home use. It takes a 0.9 kg reel, feeds 0.6 or 0.8 mm iron wire and covers 30–90 A at 14–20 V. Output polarity can be switched, so one machine can run solid wire or flux-cored wire.
At 9.3 kg net it is easy to lift into a van or move around a garage. The trade-off is a small reel and a modest top current. Reel changes come round often, and each job has to fit inside the duty rating. Send Linlong the actual joint and material thickness you need to weld, because a household label tells you little about what a given repair demands.
[1]Plan the 110 V circuit before you buy
Buying guidance
The MIG90 is a single-phase machine for 110 V ±15% at 50 or 60 Hz. Linlong rates its input at 2.9 kW and 24.8 A. That current is the figure your electrician needs. A household socket and its breaker may or may not carry it, so have the protection, earthing and any extension cable checked against the exact unit and its manual.
Ask whether the version sold in your country has different input data, and request its nameplate and manual with the quote. Linlong publishes no generator or extension-lead limits. If you plan mobile repair jobs from a generator, put the generator rating and cable length in your enquiry and let Linlong state the limits. Output amperage alone is no basis for sizing a circuit.
[1]What 25% at 90 A means for your welding time
Buying guidance
The MIG90 is rated 25% at 90 A, with a 40°C, ten-minute test reference. At full output that is about two and a half minutes of arc in every ten, followed by a cooling pause. Linlong gives no 60% or 100% figure, so the current the machine can hold without stopping is unknown. The output range tells you what the machine can reach; the duty figure tells you for how long.
Long seams call for the complete duty curve, so request it. Avoid estimating it from another machine or a rule of thumb. Walk through a real job: cleaning, tacking, the length of each weld, moving the part and repeating. Ask Linlong to show that sequence on the MIG90 with the torch and return lead it will ship, since the duty rating of those parts matters as much as the source.
[1]Wire, polarity and the parts in the box
Buying guidance
Linlong lists iron wire in 0.6 and 0.8 mm and says the output polarity can be switched for solid and flux-cored wire. Flux-cored wires differ: some run without gas, some need it, and each has its own polarity. Name the wire classification you plan to buy, and follow the wire maker's instructions together with the welder's connection guide.
Aluminium wire does not appear in the MIG90 data, so ask Linlong directly if you need it. For the 0.9 kg reel, ask which reel sizes and hub types fit and how the wire is loaded, because a reel sold as one kilogram may not match. Ask for drive rolls, a liner and contact tips that suit your wire, and whether a gas regulator and hose come with the machine for solid-wire work.
[1]Where the MIG90 sits in Linlong's line-up
Buying guidance
In Linlong's range the MIG90 sits below the multi-process OMNI210. If your work also calls for stick or TIG from the same box, compare the two side by side.
For long welds on heavy plate, Linlong's three-phase GFW industrial sets are the better starting point. The MIG / MAG welding overview explains how wire-feed machines differ by current, reel size and feeder design.
Settle these points with Linlong before you order
Buying guidance
Before you sign, get Linlong's written answer on the following.
The input data and nameplate for the version shipped to your country, and the generator and extension-lead limits, if any.
The duty curve beyond the 25% point, if your welds run longer than short repairs.
Which reels fit, and which drive rolls, liner, tips, torch and gas parts are in the price.
The settings for a representative sample weld on your own material and joint, made with the wire you will buy and with the preparation recorded.
[1]Compare the complete configuration
Swipe the table sideways to read the quotation checks.
| Item | Published scope | Before accepting the quote |
|---|---|---|
| Power source | 110 V single-phase, 30–90 A, 25% at 90 A; rated input 24.8 A. [1] | Have the circuit checked against the manual for your version. |
| Wire and reel | 0.9 kg reel; 0.6 / 0.8 mm iron wire; solid and flux-cored. [1] | Confirm the reel size, drive rolls and spare tips for your wire. |
| Torch and return lead | Shipped with the source; no separate rating listed. [1] | Ask for the torch type, its rating and its replacement parts. |
| Gas parts | No regulator or hose listed. [1] | Ask whether they are included if you weld with solid wire. |
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.
- The material, thickness and joint you need to repair, and how the weld will be judged.
- Your 110 V circuit and breaker, and whether you will use a generator or extension lead.
- The solid or flux-cored wire classification and diameter you plan to use.
- The reel size and hub you buy locally, plus the drive rolls and tips you need.
- How long each weld lasts, with a request for the full duty curve if welds run long.
- The parts you expect in the box, and spare tips and liners to ship with the order.
- Sample settings recorded on your own material.
Buyer questions
How long can the MIG90 weld at 90 A?
Linlong rates it at 25% on a ten-minute cycle at 40°C when running 90 A. No 100% current is published, so ask for the full duty curve if your welds run long. [1]
Will it run from an ordinary 110 V wall socket?
It draws 24.8 A rated input current. Whether your socket and breaker can carry that depends on the circuit, so have an electrician check it against the manual for your unit. [1]
Can I weld without gas?
Linlong says the polarity can be switched for flux-cored wire. Whether you need gas depends on the wire you choose. Check its classification and instructions, then set the polarity to match. [1]
Does the MIG90 weld aluminium?
The table lists 0.6 and 0.8 mm iron wire. If aluminium matters to you, ask Linlong before ordering and request a sample on your alloy. [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 MIG90 model page · Linlong official catalogue
Manufacturer publication · Checked 2026-10-11
Linlong's page for the MIG90, with the feature description and the parameter table for input, output, duty cycle, wire and weights.
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