WP26 TIG Welding Torch 180A | Air-Cooled | INWELT

Heavy-Duty Air-Cooled TIG Torch for Higher-Current GTAW Welding

The INWELT WP26 is a gas-cooled TIG/GTAW torch designed for fabrication, repair and industrial welding applications requiring more current capacity than smaller air-cooled torch platforms.

The INWELT configuration is rated at 180A DC and 150A AC at a 35% duty cycle and supports tungsten electrodes from Ø0.5 mm to Ø4.0 mm.

With standard 4 m and 8 m cable assemblies, rigid and flexible torch-head options, multiple torch-control configurations and several power/gas connection formats, the WP26 can be adapted to a wide range of professional TIG welding systems.

Because it is air cooled, the WP26 does not require an external water cooler. This makes it particularly practical for field maintenance, fabrication workshops and industrial applications where portability and system simplicity are important.

INWELT also supplies OEM/ODM configurations, private-label products and matching TIG consumables for welding machine manufacturers, distributors, importers and wholesalers.

INWELT WP26 Technical Specifications

Always confirm the TIG welding machine, AC/DC current range, power/gas connector, torch-control plug and required cable assembly before ordering.

Why Choose an Air-Cooled WP26 TIG Torch?

The WP26 is one of the larger air-cooled TIG torch platforms and is designed for applications where more current capacity is required without adding a water-cooling system.

Higher Current Capacity Than Smaller Air-Cooled TIG Torches

The INWELT WP26 is specified at:

• 180A DC

• 150A AC

• 35% duty cycle

This provides greater current capacity than the smaller INWELT WP9 and WP17 configurations.

It is suitable for many fabrication and repair applications where operators need more welding output but still prefer an air-cooled torch.

No External Water Cooler Required

The WP26 relies on its torch construction, cable and shielding-gas flow to manage heat.

It does not require:

• Coolant hoses

• Coolant pump

• Radiator

• Water fittings

• Separate welding cooler

This reduces system complexity and can make the torch easier to use in mobile, field and workshop environments.

Suitable for Intermittent Higher-Current Welding

An air-cooled WP26 can be a practical choice where higher welding current is required for shorter or intermittent welding periods.

For continuous high-current production welding, a water-cooled torch such as the WP18 may provide better thermal capacity and operator comfort.

WP26 and WP26F TIG Torch Head Options

INWELT offers both rigid and flexible torch-head configurations.

WP26 Rigid-Head TIG Torch

The rigid WP26 provides a fixed torch angle for straightforward welding access.

It is suited to:

• General fabrication

• Structural components

• Bench welding

• Machinery repair

• Long straight joints

• Repetitive workshop welding

A rigid head generally provides the simplest mechanical construction and is a practical choice where torch angle does not need frequent adjustment.

WP26F Flexible-Head TIG Torch

The WP26F allows the operator to reposition the torch head for difficult joint geometry.

A flexible head can be useful for:

• Pipe assemblies

• Restricted corners

• Vehicle fabrication

• Equipment maintenance

• Internal joints

• Complex fabricated structures

The flexible section should be adjusted carefully. Repeated excessive bending can shorten torch-head service life.

4 m and 8 m WP26 TIG Torch Cable Options

INWELT supplies WP26 assemblies in 4 m and 8 m lengths.

4 m Cable Assembly

A 4 m torch is suitable for compact welding stations where the TIG machine is close to the workpiece.

Potential advantages include:

• Lower cable weight

• Reduced cable drag

• Easier handling

• Simpler storage

• Cleaner workstation organization

8 m Cable Assembly

An 8 m torch provides additional working range for:

• Large fabricated assemblies

• Vehicle maintenance

• Machinery repair

• Shipyard work

• Fixed power-source installations

• Larger workshops

Select cable length according to the actual working distance rather than automatically choosing the longest available configuration.

WP26 Tungsten Electrode Range and Front-End Setup

The INWELT WP26 supports tungsten electrodes from Ø0.5 mm to Ø4.0 mm.

The correct tungsten diameter should be selected according to:

• Welding current

• AC or DC welding

• Base material

• Welding-machine characteristics

• Joint geometry

• Welding procedure

Typical front-end components include:

• Tungsten electrode

• Collet

• Collet body

• Gas lens

• Ceramic cup

• Cup gasket / insulator

• Back cap

The collet and collet body must match the diameter of the tungsten electrode.

Using mismatched parts can cause poor electrode clamping and unreliable torch assembly.

WP26 TIG Torch Consumables and Replacement Parts

The WP26 uses a widely recognized TIG consumable platform.

Typical replacement components include:

Collets

The collet grips and centers the tungsten electrode.

Available sizes should match the selected tungsten diameter.

Replace a collet when it becomes distorted, overheated or unable to hold the tungsten securely.

Collet Bodies

A standard collet body secures the collet and directs shielding gas toward the ceramic cup.

Different sizes correspond to different tungsten diameters.

Gas Lenses

Compatible gas lenses use a diffuser to help produce smoother shielding-gas flow.

They can be useful when:

• Longer tungsten extension is required

• Access to recessed joints is difficult

• More uniform gas coverage is desired

Ceramic Cups

Ceramic cups direct shielding gas around the tungsten electrode and weld pool.

Cup selection depends on gas flow, tungsten extension, welding current and joint access.

Back Caps

Long, medium and short back caps can be selected according to available clearance behind the torch.

A short back cap can improve access in confined structures.

Spare Parts Details:

Our Catalog:

ChangZhou Inwelt Tig Welding Torch.pdf

WP17, WP18 and WP26 Consumable Compatibility

WP17, WP18 and WP26 commonly belong to the same larger front-end consumable family.

Many configurations share compatible types of:

• Collets

• Collet bodies

• Gas lenses

• Ceramic cups

• Back caps

This can simplify replacement-parts inventory for distributors and industrial users that operate several TIG torch sizes.

However, complete torch assemblies are not interchangeable simply because some consumables are shared.

For example:

• WP17 is gas cooled

• WP18 is water cooled

• WP26 is gas cooled

Their torch bodies, cables, cooling systems and power connections differ.

Always verify individual part numbers and dimensions before mixing consumables from different manufacturers.

WP26 Connection Options for Different TIG Welders

One of the strongest advantages of the current INWELT WP26 product range is the availability of several complete torch connection configurations.

M12×1 Configuration

INWELT supplies WP26 and WP26F assemblies using M12×1 connection arrangements.

Both 4 m and 8 m versions are available in different switch configurations.

3/8G Configuration

A 3/8G configuration is also available for welding systems using this style of torch connection.

Rigid and flexible-head assemblies can both be supplied.

5/8-18UNF Configuration

INWELT also lists 5/8-18UNF WP26 configurations for welding equipment using this connection format.

Before ordering, confirm:

• Main power/gas connection

• Torch-switch connector

• Number of control pins

• Remote-control requirements

• AC/DC current range

Providing photographs of the existing torch connector can help reduce replacement errors.

WP26 Torch Switch and Remote-Control Options

Different TIG power sources use different operator-control systems.

INWELT WP26 assemblies can be configured with several control options.

Single Torch Switch

A standard single switch can provide torch start/stop control when connected to a compatible TIG power source.

Double and Four-Button Controls

Multi-button configurations can provide additional machine functions where supported by the welding power source.

The available functions depend on the TIG machine's control interface.

Potentiometer Amperage Control

A compatible torch-mounted potentiometer can allow the operator to adjust welding current from the torch.

However, resistance value, wiring and connector configuration must match the welding machine.

A WP26 potentiometer torch should therefore not be described as universally compatible with every TIG welder.

What Materials Can the WP26 TIG Torch Weld?

When used with a suitable TIG welding machine, shielding gas, tungsten and filler metal, the WP26 can be used on common GTAW materials including:

• Carbon steel

• Mild steel

• Stainless steel

• Aluminum

• Copper alloys

• Nickel alloys

• Titanium

• Other suitable weldable metals

The torch itself does not determine material compatibility.

Successful welding also depends on:

• AC/DC capability of the power source

• Welding current

• Tungsten type and size

• Shielding gas

• Filler metal

• Material thickness

• Joint design

• Welding procedure

For example, aluminum is commonly TIG welded using AC, while carbon steel and stainless steel are frequently welded using DCEN.

Typical Applications for the WP26 TIG Welding Torch

The WP26 is suited to professional applications that require more current capacity from an air-cooled torch.

Typical uses include:

• General metal fabrication

• Structural fabrication

• Stainless-steel welding

• Aluminum fabrication

• Machinery manufacturing

• Machinery repair

• Automotive and vehicle fabrication

• Pipe and tube work

• Shipbuilding and marine repair

• Construction equipment

• Industrial maintenance

• Field welding

Torch selection should be based primarily on welding current, duty cycle and working conditions rather than industry name alone.

WP26 vs. WP17 vs. WP18: Which TIG Torch Should You Choose?

INWELT offers several TIG torch platforms for different welding loads.

Choose WP17 When:

You need a medium-size general-purpose torch and your welding current remains within the WP17 rating.

Choose WP26 When:

You need more current capacity than WP17 but want to avoid the additional equipment required for water cooling.

Choose WP18 When:

Your application involves long arc-on times, continuous production welding or substantially higher current where water cooling provides a clear thermal advantage.

Air-Cooled WP26 vs. Water-Cooled TIG Torch

Both cooling systems have legitimate advantages.

WP26 Air-Cooled Advantages

• No water cooler required

• Simpler system

• Easier field use

• Lower equipment complexity

• Suitable for intermittent welding

• Practical for maintenance and repair

Water-Cooled Torch Advantages

A water-cooled torch can provide:

• Higher continuous current capacity

• Lower torch temperature

• Better comfort during long welds

• Smaller torch body at a given high current

• Greater suitability for production welding

If the WP26 repeatedly becomes too hot during normal operation, the application may require a water-cooled torch rather than a larger air-cooled workload.

How to Select the Correct WP26 Configuration

Before purchasing a replacement or OEM WP26 torch, confirm the complete welding system.

Check Welding Current and Duty Cycle

The INWELT WP26 is specified at:

180A DC / 150A AC at 35% duty cycle.

Do not routinely operate the torch beyond its verified thermal rating.

Confirm the Welding-Machine Connection

Check:

• Power/gas connector

• Thread size

• Torch-control plug

• Remote-control connection

• Number of switch wires

• Pin configuration

INWELT currently supplies M12×1, 3/8G and 5/8-18UNF complete torch configurations.

Choose Rigid or Flexible Head

Select:

WP26 rigid head for standard welding access.

WP26F flexible head where joint access requires repositioning.

Select 4 m or 8 m Cable

Choose a cable based on actual workstation size and operator movement.

Confirm Torch Controls

Specify whether the welding system requires:

• Single switch

• Double switch

• Four-button control

• Potentiometer remote control

Electrical compatibility must be confirmed before production.

WP26 TIG Torch Maintenance

Correct maintenance helps preserve electrical conductivity, gas flow and torch life.

Inspect the Ceramic Cup

Replace cups that are:

• Cracked

• Contaminated

• Heavily damaged

• Unable to seat correctly

Check the Collet and Tungsten

Make sure the tungsten remains firmly clamped.

Replace distorted or overheated collets.

Inspect the Torch Head

Look for:

• Damaged threads

• Loose components

• Burn marks

• Cracked insulation

• Signs of overheating

Inspect the Cable Assembly

Check the power/gas cable for:

• Cuts

• Abrasion

• Heat damage

• Excessive bending

• Loose fittings

• Gas leakage

The cable near the handle deserves particular attention because repeated operator movement can create mechanical stress.

Keep Consumables Clean

Metal particles and tungsten contamination can interfere with torch assembly and arc stability.

Keep the front-end components clean and replace worn parts when required.

Common WP26 Problems and Troubleshooting

WP26 Torch Gets Too Hot

Possible causes include:

• Excessive welding current

• Arc-on time beyond the rated duty cycle

• Loose electrical connections

• Damaged cable assembly

• Incorrect torch selection

If overheating occurs repeatedly during normal production, consider a water-cooled TIG torch.

Poor Shielding Gas Coverage

Check:

• Gas-flow setting

• Ceramic cup

• Collet body or gas lens

• O-rings and seals

• Gas hose

• Tungsten extension

• Drafts around the welding area

Excessive gas flow can also create turbulence, so more gas is not always better.

Tungsten Will Not Stay Tight

Verify:

• Correct collet size

• Correct collet body

• Collet condition

• Back-cap installation

• Tungsten diameter

Unstable TIG Arc

Inspect:

• Tungsten condition

• Work clamp

• Welding polarity

• Power-source settings

• Electrical connections

• Shielding gas

• Front-end consumables

An unstable arc may originate from another part of the welding system rather than the torch itself.

OEM WP26 TIG Torch Manufacturing by INWELT

INWELT supplies TIG welding torches and consumables to professional B2B customers including:

• Welding machine manufacturers

• Welding equipment brands

• Importers

• Distributors

• Wholesalers

• Industrial suppliers

• Repair companies

• Private-label welding brands

OEM and ODM configurations can be developed according to customer requirements.

OEM and Private-Label Options

Customization may include:

• Customer logo

• Product labels

• Private-label packaging

• Cable length

• Cable protection

• Torch handle

• Rigid or flexible head

• Switch configuration

• Potentiometer control

• Machine connector

• Instruction manual

• Consumable kits

• Bulk packaging

For OEM projects, provide the TIG welder model, electrical interface, connector requirements, target market and estimated annual demand.

Why Source WP26 TIG Torches from INWELT?

INWELT manufactures WP9, WP17, WP18 and WP26 TIG torch platforms together with related replacement consumables.

For professional buyers, sourcing complete torches and replacement parts from one supplier can simplify:

• Procurement

• Inventory

• Product development

• Connector customization

• Private labeling

• Spare-parts stocking

• Aftermarket support

The current WP26 range includes multiple 4 m and 8 m assemblies with M12×1, 3/8G and 5/8-18UNF connection options, providing useful flexibility for different regional welding-machine configurations.

Frequently Asked Questions About the WP26 TIG Welding Torch

Is the WP26 TIG torch air cooled?

Yes.

The INWELT WP26 is a gas/air-cooled TIG torch and does not require a separate water-cooling system.

What is the amperage rating of the INWELT WP26?

The current INWELT specification is 180A DC and 150A AC at a 35% duty cycle.

What tungsten sizes fit the WP26?

The INWELT WP26 supports Ø0.5–4.0 mm tungsten electrodes.

The corresponding collet and collet body must match the selected electrode diameter.

What is the difference between WP26 and WP26F?

WP26 normally refers to the rigid-head configuration.

WP26F uses a flexible head that can be repositioned to improve access to difficult joints.

What cable lengths are available?

Standard INWELT WP26 assemblies are available in 4 m and 8 m lengths.

What connectors are available?

INWELT currently lists WP26 assemblies using:

• M12×1

• 3/8G

• 5/8-18UNF

Always confirm the machine interface before ordering.

Can the WP26 weld aluminum?

Yes, when connected to an appropriate AC TIG welding machine and used with the correct tungsten, shielding gas, filler metal and welding parameters.

Is WP26 suitable for stainless steel?

Yes.

It is suitable for many stainless-steel TIG applications when welding current and duty cycle remain within the torch rating.

Do WP17, WP18 and WP26 use the same consumables?

Many standard front-end components belong to the same commonly used Series 3 family.

However, complete torch assemblies use different cooling and cable systems and should not be treated as interchangeable.

What is the difference between WP17 and WP26?

Both are gas-cooled TIG torches.

WP26 has a larger tungsten range and greater INWELT current capacity, while WP17 provides a smaller general-purpose configuration.

What is the difference between WP18 and WP26?

WP18 is water cooled and designed for substantially higher continuous current.

WP26 is air cooled and provides a simpler, more portable system for intermittent higher-current work.

Can I use a WP26 on any TIG welder?

Not automatically.

The machine must have compatible power/gas connections, torch-control wiring and appropriate AC/DC output.

Does INWELT offer WP26 remote amperage control?

Potentiometer and multi-switch configurations are available according to machine compatibility.

Does INWELT manufacture OEM WP26 TIG torches?

Yes.

INWELT supports OEM/ODM and private-label projects for welding equipment manufacturers, brands, distributors, importers and wholesalers.

Request a Quote for the INWELT WP26 TIG Welding Torch

Looking for a higher-current air-cooled TIG torch, WP26F flexible-head assembly, replacement torch, complete consumable package or OEM TIG torch manufacturer?

INWELT supplies complete WP26 torch assemblies together with compatible consumables and multiple connector configurations.

For faster technical confirmation, provide:

• TIG welding machine brand and model

• AC or DC application

• Typical welding current

• WP26 or WP26F head

• 4 m or 8 m cable

• Required connector

• Torch-control plug

• Switch or potentiometer requirement

• Tungsten diameter

• Order quantity

• INWELT or private-label branding

Contact INWELT for compatibility confirmation, samples, OEM configurations and wholesale quotations.