TIG Torch Consumables & Accessories

TIG Torch Consumables for WP-Series Welding Torches

INWELT supplies TIG welding torch consumables and replacement accessories for common WP-series TIG torch configurations, including WP9, WP17, WP18 and WP26.

The product range includes TIG collets, collet bodies, gas lenses, ceramic cups, transparent cup kits, back caps, insulators and complete consumable kits.

These components are used to secure the tungsten electrode, distribute shielding gas and maintain the correct TIG torch front-end and back-end assembly.

For distributors, welding equipment manufacturers, importers, wholesalers and industrial welding users, INWELT provides individual replacement parts and coordinated consumable kits for regular maintenance and aftermarket supply.

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TIG Torch Consumables by Component

TIG torch consumables can be selected according to their position and function within the torch assembly.

Consumable	Main Function	Key Selection Factors
Collet	Holds the tungsten electrode	Tungsten diameter, torch family
Collet Body	Supports the collet and directs shielding gas	Tungsten diameter, torch series
Gas Lens	Diffuses shielding gas around the tungsten	Torch family, electrode size, cup system
Ceramic Cup	Directs shielding gas toward the weld area	Cup size, torch series, application
Transparent Cup	Provides improved weld-zone visibility	Torch family, adapter, gas-lens system
Back Cap	Secures the rear of the tungsten assembly	Torch family, cap length
Insulator	Electrically separates and protects components	Torch model and front-end assembly
Consumable Kit	Groups commonly replaced components	Torch family and tungsten sizes

The correct replacement part should be selected according to the complete torch configuration rather than by appearance alone.

TIG Collets for Tungsten Electrode Holding

The TIG collet grips the tungsten electrode inside the torch and keeps it centered during welding.

When the back cap is tightened, the collet contracts around the tungsten and secures the electrode in position.

The correct collet should match:

• TIG torch family

• Tungsten electrode diameter

• Collet body or gas-lens system

• Front-end configuration

• Manufacturer-specific dimensions

Common tungsten diameters include 1.0 mm, 1.6 mm, 2.4 mm and 3.2 mm, while other sizes may be required for specific applications.

A collet should be inspected if the tungsten becomes difficult to secure, slips during welding or is no longer centered correctly.

Replace the collet if it is distorted, cracked, overheated or mechanically damaged.

TIG Collet Bodies and Gas Lens Systems

The collet body supports the tungsten collet and provides the shielding-gas path toward the ceramic cup.

INWELT supplies standard collet-body configurations as well as gas-lens components for selected WP-series TIG torches.

Standard TIG Collet Bodies

A standard collet-body setup is commonly used for general TIG welding applications where conventional shielding-gas distribution is sufficient.

Selection should consider:

• Torch series

• Tungsten diameter

• Collet size

• Collet-body dimensions

• Cup configuration

TIG Gas Lenses

A gas lens uses a diffuser structure to provide more uniform shielding-gas distribution around the tungsten electrode.

Depending on the welding setup, a gas lens can be useful for:

• Longer tungsten extension

• Recessed or difficult-to-access joints

• Tube and pipe welding

• Stainless steel welding

• Precision GTAW applications

• Applications requiring controlled shielding-gas coverage

Gas-lens performance also depends on cup size, gas flow, tungsten extension, torch angle and surrounding air movement.

TIG Ceramic Cups and Gas Nozzles

The TIG ceramic cup directs shielding gas around the tungsten electrode and weld zone.

INWELT supplies alumina ceramic cup configurations for selected WP-series TIG torches.

Cup selection should consider:

• TIG torch model

• Standard or gas-lens configuration

• Cup diameter

• Tungsten extension

• Welding current

• Joint geometry

• Shielding-gas requirements

Different cup sizes provide different gas coverage and access characteristics.

Do not select a ceramic cup only by the cup number. Confirm the actual dimensions and compatible torch or consumable family before ordering.

A ceramic cup should be replaced if it is:

• Cracked

• Chipped

• Heavily contaminated

• Mechanically damaged

• Unable to seat correctly

A damaged ceramic cup can affect shielding-gas coverage and should be replaced when its condition compromises the torch assembly.

TIG Transparent Cups and Glass Cup Kits

Transparent or glass TIG cup systems can provide improved visibility around the tungsten and weld area.

INWELT supplies transparent-cup accessory kits for selected WP-series TIG torch configurations.

Depending on the product configuration, a kit may include:

• Transparent cup

• Gas-lens components

• Collet

• Collet body

• Adapter

• Related insulating components

Transparent cup systems should be selected according to the torch family, cup adapter, tungsten diameter and gas-lens configuration.

Do not assume that a transparent cup designed for one TIG torch family will fit another torch without the correct adapter or front-end components.

TIG Torch Back Caps: Short, Medium and Long

The TIG back cap closes the rear of the torch and supports the tungsten and collet assembly.

INWELT supplies different back-cap lengths for selected WP-series TIG torch configurations.

Long TIG Back Caps

Long back caps provide additional space behind the torch and are suitable when a longer rear assembly is acceptable.

Medium TIG Back Caps

Medium back caps provide a balance between torch length and rear tungsten access.

Short and Stubby TIG Back Caps

Short back caps reduce the overall rear length of the TIG torch.

They can be useful when working in:

• Confined areas

• Corners

• Internal joints

• Pipe assemblies

• Restricted structures

• Applications requiring compact torch access

Back-cap selection must match the torch body, thread, sealing components and consumable family.

TIG Consumables by Torch Model

INWELT focuses its current TIG consumable range on common WP-series torch configurations.

WP9 TIG Torch Consumables

WP9 is a compact TIG torch configuration with a smaller front-end consumable system.

Available replacement components may include:

• Collets

• Collet bodies

• Gas lenses

• Ceramic cups

• Transparent cup kits

• Back caps

• Insulators

• Consumable kits

WP9 consumables should not be automatically substituted with larger WP17/WP18/WP26 front-end components.

WP9 / WP20 / WP25 Compact-Type Accessories

INWELT also lists selected back-cap and accessory configurations for WP9, WP20 and WP25-type torch applications.

Because individual manufacturers may use different dimensions or component combinations, replacement parts should be confirmed by torch model, part number, dimensions or sample.

WP17 TIG Torch Consumables

WP17 uses a larger front-end consumable family commonly associated with WP17, WP18 and WP26 TIG torch configurations.

Available component types include:

• Collets

• Collet bodies

• Gas lenses

• Ceramic cups

• Transparent cup kits

• Back caps

• Insulators

• Consumable kits

The correct component should be selected according to tungsten diameter and the required standard or gas-lens configuration.

WP18 TIG Torch Consumables

WP18 is commonly used as a water-cooled TIG torch configuration.

Its front-end consumables may share the general WP17/WP18/WP26 consumable family, while the complete torch assembly remains different because the torch body and cable system are water-cooled.

This can allow distributors to manage selected common front-end parts across multiple TIG torch configurations while keeping complete torch assemblies separately identified.

WP26 TIG Torch Consumables

WP26 is a larger gas-cooled TIG torch configuration.

INWELT supplies selected WP26 replacement components and consumable kits, including:

• Collets

• Collet bodies

• Ceramic cups

• Transparent cup configurations

• Back caps

• Related wear parts

The correct part number and dimensions should always be confirmed before substitution.

How to Choose the Correct TIG Torch Consumables

The most reliable way to select TIG consumables is to identify the torch family first and then match the tungsten diameter and front-end configuration.

Step 1: Identify the TIG Torch Model

Confirm whether the torch is:

• WP9

• WP17

• WP18

• WP26

• Another compatible torch configuration

The torch model provides the starting point for identifying the correct consumable family.

Step 2: Confirm the Tungsten Diameter

The tungsten diameter is especially important when selecting the collet.

Common sizes include:

• 1.0 mm

• 1.6 mm

• 2.4 mm

• 3.2 mm

• 4.0 mm

The available size range depends on the torch and consumable system.

Step 3: Select the Collet

The collet must match the tungsten diameter and torch front-end configuration.

For example, changing from a 1.6 mm tungsten electrode to a 2.4 mm electrode normally requires the corresponding collet and compatible collet-body or gas-lens configuration.

Step 4: Select the Collet Body or Gas Lens

Choose between a standard collet body and a gas-lens configuration according to the shielding-gas requirements and welding application.

Step 5: Select the Ceramic Cup

Cup selection should consider:

• Torch series

• Cup diameter

• Gas-lens configuration

• Tungsten extension

• Joint access

• Shielding-gas requirements

Step 6: Confirm the Back Cap

Back-cap length should match the torch body and the required working space behind the torch.

Step 7: Confirm the Complete Assembly

For replacement orders, the safest method is to confirm the existing part number, technical drawing, dimensions or product photo.

TIG Consumable Selection by Tungsten Diameter

Tungsten diameter affects several components within the TIG torch front-end assembly.

Tungsten Diameter	Components to Check
1.0 mm	Collet, collet body/gas lens, cup configuration
1.6 mm	Collet, collet body/gas lens, cup configuration
2.4 mm	Collet, collet body/gas lens, cup configuration
3.2 mm	Collet, collet body/gas lens, cup configuration
4.0 mm	Torch-specific high-current configuration

The collet normally follows the tungsten diameter directly.

The cup size, however, should not be selected based only on tungsten diameter. Joint geometry, gas coverage, tungsten extension and torch configuration also need to be considered.

Standard Collet Body vs. Gas Lens

Both standard collet-body and gas-lens systems have specific applications.

Feature	Standard Collet Body	Gas Lens
Gas distribution	Conventional	More uniform diffusion
Tungsten extension	Standard	Can support greater extension
Joint access	General	Often useful for recessed joints
Configuration	Simple	Diffuser-based
Typical application	General TIG fabrication	Precision and controlled shielding

A standard collet body can be appropriate for general fabrication where conventional gas coverage is sufficient.

A gas lens may be selected when more uniform shielding-gas distribution or additional tungsten extension is required.

Neither configuration automatically guarantees better weld quality. Correct gas flow, cup size, tungsten preparation, torch angle and shielding conditions remain important.

TIG Torch Consumable Kits and Spare Parts

Consumable kits combine multiple replacement components into one coordinated package.

Depending on configuration, a TIG consumable kit may include:

• Collets

• Collet bodies

• Gas lenses

• Ceramic cups

• Transparent cups

• Back caps

• Insulators

• Adapters

• Other torch-specific wear parts

INWELT offers selected accessory and consumable kit configurations for WP9 and WP17/WP18/WP26 torch families.

For distributors, kits can simplify inventory management and provide customers with commonly required replacement components in one package.

For OEM customers, kit configurations can also be evaluated according to torch model, tungsten sizes, component list and packaging requirements.

TIG Consumable Maintenance and Replacement

TIG consumable life varies according to actual welding conditions. There is no single replacement interval that applies to every torch, cup or collet.

Factors affecting consumable condition include:

• Welding current

• Arc-on time

• Torch temperature

• Tungsten contamination

• Mechanical impact

• Shielding-gas conditions

• Consumable installation

• Operator technique

Collet Inspection

Inspect the collet when the tungsten is difficult to secure, becomes off-center or slips during welding.

Ceramic Cup Inspection

Inspect the cup for cracks, chips, contamination or damage around the opening.

Gas Lens Inspection

Inspect the gas lens if shielding becomes inconsistent or the diffuser becomes contaminated or damaged.

Back Cap Inspection

Check the back cap for damaged threads, sealing components or insulating elements.

Condition-based inspection is more reliable than using a fixed number of welding hours as a universal replacement interval.

Common TIG Torch Consumable Problems and Solutions

Tungsten Does Not Stay Tight

Check:

• Tungsten diameter

• Collet size

• Collet condition

• Collet-body compatibility

• Back-cap assembly

Tungsten Is Not Centered

Check:

• Correct collet

• Collet-body installation

• Gas-lens alignment

• Torch-head threads

• Cup installation

Poor Shielding Gas Coverage

Check:

• Ceramic cup condition

• Gas-lens or collet-body installation

• Gas flow

• Torch seals

• Tungsten extension

• Drafts around the weld

Increasing gas flow is not always the solution. Excessive gas flow can also create turbulence.

Ceramic Cup Keeps Cracking

Check for:

• Mechanical impact

• Incorrect installation

• Excessive thermal shock

• Improper handling

A damaged cup should be replaced rather than reused.

Weld Shows Oxidation or Discoloration

Check the complete shielding system, including:

• Ceramic cup

• Gas lens

• Gas flow

• Tungsten extension

• Torch seals

• Surrounding air movement

Consumable problems should be checked before changing welding parameters unnecessarily.

TIG Torch Consumables for Distributors and OEM Buyers

INWELT supplies TIG torch consumables for professional B2B customers, including:

• Welding equipment manufacturers

• TIG torch brands

• Importers

• Distributors

• Wholesalers

• Industrial welding suppliers

• Welding repair businesses

• Private-label brands

The supply program can include individual replacement parts, consumable kits and torch-family-specific accessory packages.

For distributors, a structured TIG consumable range can help support aftermarket demand for complete TIG torch products.

OEM and Private-Label TIG Consumable Supply

INWELT supports OEM/ODM evaluation for TIG torch consumable projects.

Depending on the product and project requirements, customization may include:

• Private-label packaging

• Customer branding

• Product labels

• Part-number labels

• Consumable kits

• Bulk packaging

• Distributor packaging

• Barcode requirements

• Torch-family-specific sets

For OEM projects, customers can provide an original part number, technical drawing, sample or product photo for compatibility evaluation.

Frequently Asked Questions About TIG Torch Consumables

What are TIG torch consumables?

TIG torch consumables are replaceable components used in the TIG torch assembly. Common parts include collets, collet bodies, gas lenses, ceramic cups, back caps, insulators and consumable kits.

What does a TIG collet do?

A TIG collet grips the tungsten electrode and keeps it securely positioned inside the torch.

What is a TIG collet body?

A collet body supports the collet and provides the shielding-gas path toward the ceramic cup.

What is a TIG gas lens?

A gas lens is a diffuser-based component designed to provide more uniform shielding-gas distribution around the tungsten electrode.

When should I use a gas lens?

A gas lens can be useful when more controlled shielding-gas coverage or greater tungsten extension is required, particularly for recessed joints, tube welding and precision TIG applications.

Are WP9 and WP17 consumables interchangeable?

They should not be assumed to be interchangeable.

WP9 uses a smaller front-end consumable configuration, while WP17, WP18 and WP26 commonly use a larger consumable family.

Always confirm the specific part number and dimensions before substitution.

Do WP17, WP18 and WP26 use the same TIG consumables?

Many front-end components are based on a common consumable family, but exact compatibility depends on the specific component, dimensions and manufacturer configuration.

How do I choose a TIG collet?

First identify the torch family and then match the collet to the tungsten electrode diameter.

How do I choose a TIG ceramic cup?

Confirm the torch family, cup configuration, cup diameter, gas-lens or standard setup, tungsten extension and shielding-gas requirements.

Are transparent TIG cups compatible with all TIG torches?

No. Transparent cup systems may require specific adapters, gas-lens components and torch-family configurations.

How often should TIG consumables be replaced?

There is no universal replacement interval. Replacement should be based on component condition and actual welding conditions.

Does INWELT supply TIG consumable kits?

Yes. INWELT supplies selected TIG consumable and accessory kits for WP-series torch configurations.

Can INWELT supply OEM TIG consumables?

INWELT can evaluate OEM/ODM and private-label TIG consumable projects based on the required torch family, components, specifications, packaging and order quantity.

Request a TIG Torch Consumables Quote

To help us identify the correct TIG torch consumables, please provide:

• TIG torch model

• WP9, WP17, WP18 or WP26 configuration

• Tungsten diameter

• Required collet

• Standard collet body or gas-lens setup

• Ceramic or transparent cup requirement

• Back-cap length

• Individual parts or complete kit

• Existing part number, if available

• Estimated order quantity

• OEM or private-label requirements

INWELT can evaluate the required TIG torch consumable configuration and provide a suitable B2B supply solution.