TIG Welding Torches

TIG Welding Torches for Precision and Industrial GTAW Welding

The INWELT TIG Welding Torch range includes gas-cooled and water-cooled GTAW torches designed for precision fabrication, production welding, maintenance and industrial applications.

The current range includes:

• WP9 – compact gas-cooled TIG torch

• WP17 – general-purpose gas-cooled TIG torch

• WP18 – high-current water-cooled TIG torch

• WP26 – higher-current gas-cooled TIG torch

These torch platforms cover different current ranges, duty cycles, tungsten-electrode sizes, cooling methods and working environments.

The correct TIG torch should be selected according to:

• AC or DC welding current

• Duty cycle

• Cooling method

• Tungsten-electrode diameter

• Torch-head size

• Joint access

• Cable length

• Torch-control requirements

• Power/gas connection

• Welding application

INWELT TIG Torch Model Comparison

Model	Cooling	DC Rating	AC Rating	Duty Cycle	Tungsten Range	Cable Length
WP9	Gas Cooled	110A	95A	35%	Ø0.5–1.6 mm	4 / 8 m
WP17	Gas Cooled	140A	125A	35%	Ø0.5–2.4 mm	4 / 8 m
WP18	Water Cooled	320A	240A	100%	Ø0.5–4.0 mm	4 / 8 m
WP26	Gas Cooled	180A	150A	35%	Ø0.5–4.0 mm	4 / 8 m

These are current INWELT product specifications.

Similarly named WP-style TIG torches from other manufacturers may use different current ratings or duty cycles.

Always use the verified INWELT specification when selecting an INWELT torch.

WP9 110A Gas-Cooled TIG Welding Torch

The INWELT WP9 is the most compact torch in the current WP Series range.

Current INWELT specifications include:

• 110A DC

• 95A AC

• 35% duty cycle

• Ø0.5–1.6 mm tungsten electrodes

• Gas-cooled construction

• 4 m / 8 m cable assemblies

• Rigid and flexible-head configurations

• Multiple torch-switch options

• M12×1 connection configurations available

The compact WP9 torch head makes it particularly useful where precise torch manipulation and access to restricted joints are more important than high amperage capacity.

Typical applications include:

• Thin stainless-steel fabrication

• Tube and pipe welding

• Precision components

• Automotive repair

• Motorsport components

• Instrumentation

• Artistic metalwork

• Restricted-access joints

WP17 140A Gas-Cooled TIG Welding Torch

The WP17 provides more current capacity than the WP9 while remaining compact enough for general fabrication and repair.

Current INWELT specifications include:

• 140A DC

• 125A AC

• 35% duty cycle

• Ø0.5–2.4 mm tungsten electrodes

• Gas-cooled construction

• 4 m / 8 m cable options

• Multiple control-switch configurations

• Rigid and flexible-head options depending on configuration

The WP17 is a practical general-purpose TIG torch for welders who require more current than a WP9 but do not need the larger WP26 or a water-cooled system.

Typical applications include:

• General metal fabrication

• Stainless-steel welding

• Pipe and tube fabrication

• Automotive repair

• Machinery maintenance

• HVAC fabrication

• Sheet-metal welding

• Workshop and field repair

WP26 180A Gas-Cooled TIG Welding Torch

The INWELT WP26 is the highest-current gas-cooled model in the current category.

Current specifications include:

• 180A DC

• 150A AC

• 35% duty cycle

• Ø0.5–4.0 mm tungsten electrodes

• Gas-cooled construction

• 4 m / 8 m cable assemblies

• Rigid and flexible-head versions

• Single-, multi-button and potentiometer control options

• Multiple power/gas connection formats

Current connector configurations can include:

• M12×1

• 3/8G

• 5/8-18UNF

The WP26 is suitable where higher welding current is required but an external water cooler is not practical.

Typical applications include:

• Machinery fabrication

• Structural fabrication

• Industrial repair

• Construction equipment

• Agricultural equipment

• Field maintenance

• General higher-current GTAW welding

WP18 320A Water-Cooled TIG Welding Torch

The INWELT WP18 is designed for continuous high-current GTAW welding where an air-cooled torch would accumulate excessive heat.

Current specifications include:

• 320A DC

• 240A AC

• 100% duty cycle

• Ø0.5–4.0 mm tungsten electrodes

• Water-cooled construction

• 4 m / 8 m cable assemblies

• Rigid and flexible-head options

• Multiple torch-control configurations

A compatible TIG water cooler is required.

The circulating coolant removes heat from the torch head and cable assembly, making the WP18 particularly suitable for longer arc-on times and high-current welding.

Typical applications include:

• Heavy fabrication

• Pressure vessels

• Pipe fabrication

• Industrial manufacturing

• High-current aluminum TIG welding

• Production welding

• Long welding cycles

WP9 vs. WP17 vs. WP26: Which Gas-Cooled TIG Torch Should You Choose?

The main differences are torch size, current capacity and tungsten range.

Feature	WP9	WP17	WP26
Cooling	Gas	Gas	Gas
DC Rating	110A	140A	180A
AC Rating	95A	125A	150A
Duty Cycle	35%	35%	35%
Tungsten Range	0.5–1.6 mm	0.5–2.4 mm	0.5–4.0 mm
Torch Size	Compact	Medium	Larger
Main Positioning	Precision/access	General purpose	Higher-current work

Choose WP9 when compact size and access are the highest priority.

Choose WP17 when you need a balanced general-purpose TIG torch.

Choose WP26 when higher amperage capacity is required without adding a water-cooling system.

WP18 vs. WP26: Water-Cooled or Gas-Cooled?

WP18 and WP26 both support larger tungsten-electrode sizes, but they serve different operating conditions.

Choose WP26 When

You require:

• Gas-cooled simplicity

• Higher intermittent welding current

• No external water cooler

• Better portability

• Field or maintenance use

Choose WP18 When

You require:

• Higher continuous current

• Longer welding cycles

• Better heat removal

• 100% duty-cycle capability

• A smaller high-current water-cooled torch head

The final choice should be based on welding current and arc-on time rather than amperage alone.

Gas-Cooled vs. Water-Cooled TIG Torches

Cooling method is one of the most important TIG torch selection factors.

Gas-Cooled TIG Torch

A gas-cooled TIG torch dissipates heat through the torch structure, cable and surrounding environment.

Advantages include:

• Simple setup

• No water cooler required

• Fewer hoses and connections

• Better portability

• Lower system complexity

Current INWELT gas-cooled models include:

• WP9

• WP17

• WP26

Water-Cooled TIG Torch

A water-cooled torch circulates coolant through the torch and cable assembly.

Advantages include:

• Higher continuous-current capacity

• Better heat removal

• More comfortable operation during long welds

• Compact high-current torch-head design

Current INWELT water-cooled model:

• WP18

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How to Choose the Correct TIG Welding Torch

A TIG torch should not be selected by model number alone.

Consider the following parameters.

Welding Current

Select a torch rated for the actual AC or DC welding current.

Do not exceed the verified torch rating.

Duty Cycle

Duty cycle describes how long the torch can operate at the stated current within a defined test period.

For example:

• WP9 / WP17 / WP26: current INWELT ratings at 35%

• WP18: current INWELT rating at 100%

A higher amperage number without the duty cycle is incomplete technical information.

AC or DC Welding

TIG torch ratings may differ between AC and DC.

Always use the correct value for the welding process.

Tungsten Diameter

Select a torch and front-end consumables that support the required tungsten-electrode diameter.

Cooling System

Choose gas cooling for portability and simpler installations.

Choose water cooling for higher continuous thermal loads.

Joint Access

Smaller torch heads such as WP9 can provide better access to tight joints.

Larger torches provide greater current capacity but may reduce access in confined spaces.

TIG Torch DC vs. AC Current Ratings

The current INWELT category specifies separate DC and AC ratings.

This is important because TIG torch thermal loading can differ between AC and DC operation.

Current ratings are:

Model	DC	AC
WP9	110A	95A
WP17	140A	125A
WP26	180A	150A
WP18	320A	240A

Always compare the correct rating with the actual welding process.

TIG Torch Duty Cycle Explained

Duty cycle should always be shown together with current rating.

For example:

180A DC at 35% duty cycle

does not mean:

180A continuously

Likewise:

320A DC at 100% duty cycle

represents a different thermal operating condition.

Actual torch temperature can also be affected by:

• Ambient temperature

• Torch cable condition

• Coolant flow

• Shielding-gas flow

• Torch-head configuration

• Arc-on time

• Welding technique

TIG Tungsten Electrode Size Selection

Different WP models support different tungsten-electrode ranges.

Current INWELT ranges are:

WP9

Ø0.5–1.6 mm

WP17

Ø0.5–2.4 mm

WP18

Ø0.5–4.0 mm

WP26

Ø0.5–4.0 mm

The tungsten size should be selected according to:

• Welding current

• AC or DC operation

• Tungsten type

• Base material

• Welding procedure

The collet, collet body and gas-lens components must match the selected tungsten diameter.

TIG Torch Rigid Head vs. Flexible Head

Different TIG applications require different torch-head geometries.

Rigid Head

A rigid torch head provides a fixed electrode angle.

Advantages include:

• Simple structure

• Repeatable torch geometry

• Good durability

Flexible Head

A flexible torch head can be adjusted to improve access around difficult joints.

It can be useful for:

• Pipework

• Internal corners

• Restricted fabrication

• Automotive components

• Complex assemblies

Flexible heads should only be bent within the design limits of the specific torch.

Repeated excessive bending can damage the torch head.

TIG Torch Control Options

Depending on configuration, INWELT TIG torches can be supplied with different operator-control systems.

Available configurations can include:

• Basic torch switch

• Multi-button switch

• Four-button control

• Potentiometer control

The exact control functions depend on the welding power source.

Before ordering, confirm:

• TIG machine model

• Trigger/control connector

• Number of control pins

• Remote amperage-control requirement

• Switch configuration

A torch-control plug that physically fits does not automatically guarantee electrical compatibility.

TIG Torch Connection Options

TIG welding machines use different power, gas and control interfaces.

Current INWELT product configurations include several connector formats.

Examples include:

• M12×1

• 3/8G

• 5/8-18UNF

• Machine-specific power/gas connectors

• Dedicated torch-control plugs

Before ordering a replacement TIG torch, provide:

• Welding machine manufacturer

• Machine model

• Current torch model

• Power/gas connector photograph

• Control connector photograph

• Required cable length

This is more reliable than selecting a torch only by WP model number.

TIG Torch Cable Lengths

Current INWELT WP Series torches are available with:

• 4 m cable assemblies

• 8 m cable assemblies

Cable length should be selected according to:

• Welding workstation

• Machine location

• Operator movement

• Wire/cable management

• Water-cooling requirements

Longer cable assemblies provide additional working reach but can increase weight and handling resistance.

TIG Torch Consumables and Replacement Parts

INWELT supplies replacement parts and consumables for WP Series TIG torches.

Depending on the model, components can include:

• Tungsten electrodes

• Collets

• Collet bodies

• Gas lenses

• Ceramic cups

• Gas nozzles

• Back caps

• Insulators

• Torch heads

• Handles

• Switches

• Power cables

• Gas hoses

• Water hoses

• Cable covers

• Connector components

Consumables should always be matched to the specific torch family.

Collets and Collet Bodies

The collet grips and positions the tungsten electrode.

The collet body supports the collet and directs shielding gas toward the weld area.

Select both components according to:

• Torch model

• Tungsten diameter

• Standard or gas-lens setup

Using the wrong collet size can result in:

• Poor tungsten clamping

• Misalignment

• Gas leakage

• Electrical contact problems

TIG Gas Lens vs. Standard Collet Body

A gas lens uses a diffuser or screen system to straighten and distribute shielding-gas flow.

Potential advantages can include:

• More uniform gas coverage

• Greater tungsten stick-out in suitable applications

• Improved access to some joints

However, gas-lens selection should depend on:

• Torch model

• Cup size

• Gas-flow requirement

• Welding application

Do not assume that the largest gas lens or highest gas-flow setting is always better.

TIG Ceramic Cups and Nozzles

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

Cup selection depends on:

• Tungsten diameter

• Gas flow

• Joint geometry

• Electrode stick-out

• Welding current

• Gas-lens configuration

A damaged or contaminated ceramic cup should be replaced.

Inspect for:

• Cracks

• Spatter

• Mechanical damage

• Thread damage

• Poor seating

TIG Back Caps

The back cap holds the tungsten assembly in position and seals the rear of the torch head.

Different lengths can be useful for different access requirements.

Common formats can include:

• Long back cap

• Medium back cap

• Short back cap

Shorter back caps are often useful where rear clearance is limited.

WP17, WP18 and WP26 Consumable Relationship

WP17, WP18 and WP26 belong to a related larger TIG torch family and can share selected front-end component formats depending on the specific configuration.

However, complete interchangeability should not be assumed.

Always confirm:

• Collet

• Collet body

• Gas lens

• Cup

• Back cap

• Torch head

• Insulator

by part number before ordering.

WP9 uses a smaller torch platform and should be treated separately when selecting consumables.

What Materials Can TIG Welding Torches Weld?

TIG/GTAW can be used on many metals when the welding machine, shielding gas, tungsten and filler metal are correctly selected.

Common materials include:

• Stainless steel

• Carbon steel

• Mild steel

• Aluminum

• Magnesium

• Titanium

• Nickel alloys

• Copper alloys

The TIG torch itself does not determine whether a material can be welded successfully.

Which TIG Torch Is Suitable for Aluminum Welding?

Aluminum TIG welding commonly uses AC-capable TIG equipment.

Torch selection should be based on the required AC current and duty cycle.

For lower-current aluminum work, a gas-cooled torch may be sufficient.

For extended higher-current aluminum welding, a water-cooled WP18 can provide better heat management.

Always use the AC rating rather than the DC rating when evaluating torch capacity for AC aluminum welding.

Which TIG Torch Is Suitable for Stainless Steel?

Stainless-steel TIG welding is commonly performed using DCEN.

Depending on material thickness and welding current:

• WP9 can suit precision or thin-section work

• WP17 can suit general fabrication

• WP26 can suit higher-current work

• WP18 can suit continuous high-current production

Final selection should be based on current and duty cycle.

Typical TIG Welding Applications

The INWELT WP Series can support professional applications including:

• Stainless-steel fabrication

• Aluminum fabrication

• Pipe and tube welding

• Pressure vessels

• Food-processing equipment

• Pharmaceutical equipment

• Automotive fabrication

• Motorsport

• Aerospace-related fabrication

• Heat exchangers

• Machinery

• Maintenance and repair

• Precision metalwork

Actual torch selection should always be based on welding parameters rather than industry name alone.

TIG Torch Maintenance

Routine inspection helps maintain stable electrical and gas performance.

Inspect the Tungsten

Check for:

• Contamination

• Excessive erosion

• Incorrect preparation

• Damage

Inspect the Collet

Replace worn or distorted collets that no longer hold the tungsten securely.

Inspect the Collet Body or Gas Lens

Check gas passages for:

• Contamination

• Damage

• Blockage

Inspect the Ceramic Cup

Replace cracked or contaminated cups.

Inspect the Torch Head

Check for:

• Heat damage

• Gas leakage

• Loose components

• Mechanical damage

Inspect the Cable Assembly

Check for:

• Cuts

• Abrasion

• Heat damage

• Loose fittings

• Damaged control wiring

Water-Cooled TIG Torch Maintenance

Water-cooled systems require additional inspection.

Check:

• Coolant level

• Coolant flow

• Water hoses

• Hose fittings

• Pump operation

• Water cooler condition

Do not operate a water-cooled torch without adequate coolant circulation.

Restricted flow can cause rapid torch overheating.

Use coolant approved for the welding cooler and operating environment.

Common TIG Torch Problems

Torch Overheating

Check:

• Welding current

• Duty cycle

• Cooling system

• Cable condition

• Water flow on water-cooled models

• Loose electrical connections

Unstable Arc

Check:

• Tungsten condition

• Tungsten size

• Work connection

• Shielding gas

• Torch consumables

• Welding-machine settings

Poor Gas Coverage

Check:

• Gas flow

• Ceramic cup

• Gas lens / collet body

• Gas hose

• Leaks

• External drafts

Tungsten Contamination

Check:

• Electrode contact with weld pool

• Filler-wire contact

• Gas coverage

• Post-flow

• Tungsten preparation

Troubleshooting should consider the complete GTAW system rather than the torch alone.

OEM TIG Welding Torch Manufacturing by INWELT

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

• TIG welding machine manufacturers

• Welding equipment brands

• Importers

• Distributors

• Wholesalers

• Industrial suppliers

• Repair companies

• Aftermarket consumable brands

OEM and ODM configurations can be developed according to the target welding machine and market requirements.

OEM and Private-Label Options

Customization may include:

• Customer branding

• Handle marking

• Handle color

• Cable length

• Rigid or flexible torch head

• Torch-control switch

• Potentiometer control

• Power/gas connector

• Control plug

• Leather cable cover

• Consumable kits

• Private-label packaging

• User manuals

• Barcode and carton requirements

For OEM projects, provide the welding-machine model, AC/DC current range, connector requirements, control functions and estimated purchasing quantity.

Why Source TIG Welding Torches from INWELT?

The current INWELT TIG range combines compact gas-cooled, general-purpose, higher-current air-cooled and high-current water-cooled torch platforms within one supply program.

The current category includes:

• WP9

• WP17

• WP18

• WP26

• 110A–320A DC current classes

• Gas-cooled and water-cooled configurations

• 35% and 100% duty-cycle options

• Ø0.5–4.0 mm total tungsten coverage

• 4 m / 8 m cable options

• Rigid and flexible torch heads

• Multiple torch-control options

• Multiple machine connectors

• TIG consumables and replacement parts

• OEM/private-label supply

For welding equipment brands and distributors, sourcing complete TIG torches and matching consumables from one manufacturer can simplify purchasing and aftermarket support.

Frequently Asked Questions About TIG Welding Torches

What TIG torch models does INWELT currently offer?

The current main WP Series range includes:

• WP9

• WP17

• WP18

• WP26

Which INWELT TIG torches are gas cooled?

Current gas-cooled models include:

• WP9

• WP17

• WP26

Which INWELT TIG torch is water cooled?

WP18 is the current water-cooled model in this category.

What is the WP9 current rating?

Current INWELT specification:

• 110A DC

• 95A AC

• 35% duty cycle

What is the WP17 current rating?

Current INWELT specification:

• 140A DC

• 125A AC

• 35% duty cycle

What is the WP26 current rating?

Current INWELT specification:

• 180A DC

• 150A AC

• 35% duty cycle

What is the WP18 current rating?

Current INWELT specification:

• 320A DC

• 240A AC

• 100% duty cycle

Which TIG torch is best for precision welding?

WP9 is the most compact torch in the current INWELT WP range and is well suited to precision and restricted-access work within its current rating.

Which TIG torch is best for general fabrication?

WP17 provides a balanced combination of size and current capacity for many general TIG applications.

Which gas-cooled TIG torch has the highest current capacity?

The current WP26 has the highest current rating among INWELT's gas-cooled WP9, WP17 and WP26 models.

Which TIG torch is suitable for continuous high-current welding?

WP18 is the current water-cooled model and is rated for 320A DC / 240A AC at 100% duty cycle.

What tungsten sizes are supported?

Current ranges are:

• WP9: Ø0.5–1.6 mm

• WP17: Ø0.5–2.4 mm

• WP18: Ø0.5–4.0 mm

• WP26: Ø0.5–4.0 mm

What cable lengths are available?

Current standard cable assemblies include:

• 4 m

• 8 m

Can INWELT TIG torches weld aluminum?

Yes, when connected to an appropriate AC TIG power source and used with suitable tungsten, shielding gas, filler metal and welding parameters.

Can INWELT TIG torches weld stainless steel?

Yes.

Stainless-steel GTAW is commonly performed using DCEN and an appropriate shielding gas and filler-metal system.

Are all WP-style TIG torch ratings identical between manufacturers?

No.

Similarly named TIG torches can use different current ratings and duty-cycle test conditions.

Always use the technical specification published for the actual torch being purchased.

Does INWELT offer OEM TIG torches?

Yes.

OEM/ODM, private labeling, cable customization, switch configuration, connector customization and consumable-kit options are available for qualified B2B customers.

Request a Quote for INWELT TIG Welding Torches

For faster model selection and compatibility confirmation, provide:

• TIG welding-machine manufacturer and model

• AC or DC welding process

• Required welding current

• Required duty cycle

• Tungsten diameter

• Existing torch model

• Power/gas connector photograph

• Control-plug photograph

• Required cable length

• Rigid or flexible-head requirement

• Required torch controls

• Required consumables

• Estimated purchasing quantity

• INWELT or private-label branding

INWELT can then recommend the appropriate WP9, WP17, WP18 or WP26 TIG torch configuration for your welding system.