Linlong Welding · Series selection guide

Linlong TIG200PGD and TIG250PGD DC Pulse TIG and Stick Welders

Two single-phase DC pulse TIG inverters with a stick mode. The TIG200P runs on 110 V or 220 V and reaches 200 A TIG; the TIG250P is 220 V only, reaches 250 A and draws up to 50 A. Get the nameplate duty rating for your supply and process first, because the printed duty row is incomplete.

By WeldOrigin Editorial · Sources checked 2026-11-04

What the manufacturer publishes

Values as the manufacturer publishes them for this model, with the source for each line.

Model codes: Product title: TIG200PGD / TIG250PGD. Specification table headers: TIG200P and TIG250P [1]
Supply: TIG200P: single-phase 110/220 V ±15%. TIG250P: single-phase 220 V ±15%. Both 50/60 Hz [1]
Current ranges: TIG200P at 110 V: stick 20–120 A, TIG 5–120 A. At 220 V: stick 20–180 A, TIG 5–200 A. TIG250P: stick 20–220 A, TIG 5–250 A [1]
Rated input: TIG200P 110 V: MMA 3.7 kW / 33.8 A, TIG 2.2 kW / 20.2 A. TIG200P 220 V: MMA 6.1 kW / 27.8 A, TIG 4.5 kW / 20.5 A. TIG250P: MMA 11 kW / 50 A, TIG 9.7 kW / 44 A [1]
Duty cycle as printed (40 °C, 10 min): 25% 120 A / 100% 76 (no unit); 25% 180 A / 100% 114 A; 25% 200 A / 100% 126 A; 30% 220 A / 100% 220 A; 30% 250 A / 100% 230 A [1]
Shared electrical values: Open-circuit voltage 62 V; efficiency at least 80%; power factor 0.73 [1]
Enclosure and cooling: IP21, insulation class F, fan cooling (AF) [1]
Weight and packing: Net 15 / 20.8 kg; gross 18 / 23.3 kg; cartons 490 × 245 × 450 mm and 625 × 285 × 555 mm [1]
Listed functions: Lift TIG, HF TIG and MMA; MMA with VRD, arc force and hot start; 2T/4T; 32-bit MCU with parameter memory; 50 kHz inverter; optional foot control [1]

Two machines, three supply set-ups

Linlong lists the pair on one product page under the title TIG200PGD / TIG250PGD, while the specification table calls them TIG200P and TIG250P. Both are inverter sources for DC pulse TIG with a stick welding mode, built on a 50 kHz inverter with a 32-bit MCU that stores parameters.

The TIG200P accepts 110 V or 220 V single-phase. On 110 V it gives 5–120 A TIG and 20–120 A stick. On 220 V the TIG range opens to 5–200 A and stick to 20–180 A. The TIG250P runs on 220 V only, with 5–250 A TIG and 20–220 A stick. Linlong lists lift TIG and HF start, 2T/4T trigger modes, and a stick mode with VRD, arc force and hot start. Net weights are 15 kg and 20.8 kg, and both units have an IP21 case with fan cooling.

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Five duty entries for six columns

Buying guidance

The table has six operating columns: MMA and TIG at 110 V and at 220 V for the TIG200P, then MMA and TIG for the TIG250P. The duty row gives five pairs, all at 40 °C over a ten-minute cycle. Read in order, the first pair (25% at 120 A) fits the 110 V supply as a whole, because both 110 V ranges stop at 120 A. A strict column-by-column reading would put 180 A on a 110 V TIG range that ends at 120 A, so the first pair most likely covers both 110 V modes.

Three entries need a straight answer from Linlong. The 100% figure in the first pair reads 76 with no unit. On the TIG250P stick column, the 30% and 100% figures are both 220 A, which would mean no derating at all and looks like a typing error. The TIG column gives 230 A continuous against 250 A at 30%. Before these numbers go into a tender table, ask for the nameplate duty rating of each machine for each supply and each process.

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Steel and stainless work, and the AC lines in the list

Buying guidance

DC TIG with the electrode negative is the normal set-up for carbon steel, stainless steel, copper and titanium. Pulse switches the arc between a peak and a base current, so thin sheet and out-of-position joints get less heat while the puddle still wets the edges. Aluminium and magnesium need an AC arc to break the oxide skin, and a DC unit handles them poorly.

The title marks these machines Dcp, for DC pulse. Even so, the adjustment list on the same page ends with AC frequency and also includes an item that translates as gap width adjustment. Neither fits a DC-only source. Ask Linlong whether those two lines came over from the AC/DC model's description or whether the units have some AC function. If aluminium is in your job mix, compare against Linlong's TIGACDC200GD instead.

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Supply sizing: the TIG250P needs its own circuit

Buying guidance

On a 220 V single-phase line, the TIG250P draws 50 A in stick mode and 44 A in TIG mode, which is 11 kW and 9.7 kW. Many ordinary socket circuits cannot carry that, so plan a dedicated supply. The TIG200P on 220 V draws 27.8 A for stick and 20.5 A for TIG. On 110 V its stick draw rises to 33.8 A.

With a power factor of 0.73, the line carries more apparent power than the kW figure suggests. Give the full input table to the electrician who sizes the breaker and cable, and say if the machine will ever run from a generator. Linlong's page is silent on how the TIG200P switches between 110 V and 220 V, so ask whether it senses the voltage or uses a selector, and which plug comes fitted for your market.

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Arc start, pulse settings and what comes in the box

Buying guidance

Linlong says its high-frequency start gives a higher ignition success rate. Lift TIG is listed as well. Lift start is the safer choice near CNC controls, medical electronics or sensitive instruments that HF can disturb, so check that it can be selected on the firmware shipped with your units.

The panel covers pre-flow, start current, up-slope, peak and base current, crater current, down-slope, pulse frequency, pulse ratio and post-flow, plus memory for welding settings. No adjustment range is printed for any of these, pulse frequency included. If you weld thin stainless, ask for the ranges before you order. The foot control is optional. Torch, gas regulator, earth lead and electrode holder appear nowhere on the page, so spell out the kit you expect in the purchase order.

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Home use, workshop runs and own-brand builds

Buying guidance

Linlong calls both units compact, light, easy to carry and suitable for home users. At 15 kg and 20.8 kg with an IP21 case, they are portable machines for indoor use, since IP21 gives no protection from rain or spray. A workshop planning long TIG runs should size the purchase from the confirmed continuous current, which is well below the peak in the model name.

Linlong also offers to change the appearance, welding current, manual and packaging for buyers. If you plan an own-brand version, ask which of those changes touch the electrical design and so the certification file. The company section of the page lists ISO 9001, CCC, VDE, CQC, CE, ETL and GS without tying any of them to these two models. Ask for the certificate and test report that cover the exact model and voltage version you will import.

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Points to settle with Linlong before payment

Buying guidance

Ask Linlong to put these in writing for the model and voltage version on your order.

Nameplate duty ratings for every supply and process column at 40 °C and ten minutes, including a corrected TIG250P stick figure and the unit for the 76 entry.

A clear statement on AC output: either the units are DC only, or a description of the AC function behind the AC frequency and gap width settings.

Adjustment ranges for pulse frequency, pulse ratio, slopes and gas timing, and the voltage changeover method on the TIG200P.

The kit list, from torch to foot control, and the certificate and test report matched to the model code that will be printed on the nameplate.

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Keep the variants separate

Swipe the table sideways to read the quotation checks.

Item	Published scope	Before accepting the quote
TIG200P on 110 V supply	MMA 20–120 A and TIG 5–120 A; input 3.7 kW / 33.8 A (MMA) and 2.2 kW / 20.2 A (TIG). [1]	Which duty entry covers 110 V, the unit behind the 76 figure, and how the voltage is selected.
TIG200P on 220 V supply	MMA 20–180 A and TIG 5–200 A; input 6.1 kW / 27.8 A and 4.5 kW / 20.5 A. [1]	Separate MMA and TIG duty points, matched to the nameplate.
TIG250P	220 V only; MMA 20–220 A, TIG 5–250 A; input up to 11 kW / 50 A; net 20.8 kg. [1]	A corrected 100% stick rating and the breaker size your electrician needs.
Foot control	Optional, with automatic detection, according to Linlong. [1]	Whether the quote includes it, plus cable length and connector type.
Customised version	Linlong offers changes to appearance, welding current, manual and packaging. [1]	Which changes affect certification, and the minimum order for a custom build.

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.

Your base metals and thicknesses, and whether any aluminium or magnesium is involved
Supply voltage at the site and the breaker size available, plus any generator use
The TIG and stick currents you run continuously and for how long
Pulse settings you need, with a request for the adjustment ranges
Whether HF start is acceptable or lift start is required near electronics
The kit you expect: torch, regulator, earth lead, holder and foot control
Destination market, so Linlong can quote the matching plug, certificate and test report

Prepare this enquiry

Buyer questions

Can the TIG200PGD or TIG250PGD weld aluminium?

They are sold as DC pulse TIG machines, and aluminium TIG normally needs AC output. The adjustment list mentions AC frequency, which clashes with the DC title, so put the question to Linlong. For aluminium work, look at the TIGACDC200GD. [1]

Is the TIG200PGD the same machine as the TIG200P in the table?

Most likely yes. The title uses the PGD suffix and the table uses P alone. Ask Linlong which code will be printed on the nameplate and on the certificates. [1]

How much TIG current can the TIG250P give continuously?

Linlong prints 230 A at 100% and 250 A at 30%, at 40 °C over a ten-minute cycle. The stick entry next to it appears to contain a typing error, so get the nameplate value before you rely on either figure. [1]

Does the TIG200P switch between 110 V and 220 V by itself?

Linlong does not say. Ask how the changeover works and which plug ships for your market. [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 TIG200PGD / TIG250PGD product page · Zhejiang Linlong Welding Equipment
Manufacturer publication · Checked 2026-11-04
Linlong's specification table and feature list for the TIG200P and TIG250P. It covers current ranges, input draw, duty entries, weights, carton sizes and the control functions.

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