PSF505 Gas Cooled Mig Welding Torch - Changzhou Inwelt

PSF505 ESAB-Style MIG Welding Torch Overview

The INWELT PSF505 ESAB-Style MIG Welding Torch is a heavy-duty, gas-cooled MIG/MAG welding gun designed for industrial fabrication and high-current manual welding applications.

The standard PSF505 specification lists a rated current of 500A with CO₂ shielding gas and 400A with mixed shielding gas at a 60% duty cycle. It supports Ø1.2–2.0 mm welding wire and is available with 3 m and 4 m cable assemblies.

The torch features a curved swan neck, replaceable front-end consumables, an insulated handle and a central connector assembly. Its serviceable construction enables buyers to identify and replace individual components rather than treating the welding gun as a single non-serviceable unit.

INWELT supplies PSF505 MIG welding guns for welding equipment distributors, importers, wholesalers, OEM brands and industrial customers. Bulk supply, private-label packaging and application-specific configuration requirements can be discussed before ordering.

PSF505 MIG Welding Torch Technical Specifications

The following table summarizes the standard INWELT PSF505 configuration.

Specification	INWELT PSF505
Product Name	PSF505 ESAB-Style MIG Welding Torch
Model	PSF505
Brand	INWELT
Welding Process	MIG/MAG (GMAW)
Cooling Method	Air Cooled / Gas Cooled
Rated Current – CO₂	500A
Rated Current – Mixed Gas	400A
Duty Cycle	60%
Supported Wire Diameter	Ø1.2–2.0 mm
Cable Length	3 m / 4 m
Gas Nozzle	Ø18 mm
Contact Tip Configuration	M8 × 37, listed options
Contact Tip Adapter	M8
Wire Liner	Steel liner, Ø1.6–2.0 mm configuration listed
Torch Neck	Curved Swan Neck
Rear Connection	Central Connector
Operation	Manual MIG/MAG Welding
OEM/ODM	Available for Project Review

The rated current must be interpreted together with the corresponding shielding gas and duty-cycle conditions.

For replacement applications, customers should confirm the complete connection system and the required front-end consumables before ordering.

Key Features of the INWELT PSF505 MIG Gun

500A CO₂ and 400A Mixed-Gas Ratings

The PSF505 is designed for welding applications requiring a higher current rating than smaller MIG torch configurations.

The current INWELT specifications list:

• 500A with CO₂ shielding gas

• 400A with mixed shielding gas

• 60% duty cycle

The allowable welding current depends on the shielding gas, welding duration and actual operating conditions.

These ratings do not mean the torch can weld continuously at maximum current without thermal limits.

For demanding fabrication applications, the welding gun should be selected according to the welding procedure, wire diameter, duty cycle and expected arc-on time.

Gas-Cooled Construction for Industrial Welding

The PSF505 uses an air-cooled, also commonly called gas-cooled, torch design.

It does not require an external circulating water-cooling system.

Heat management depends on the torch construction, electrically conductive components, cable assembly and surrounding operating conditions.

Compared with a water-cooled system, an air-cooled torch eliminates the need for coolant hoses, a pump and a separate liquid-cooling unit.

However, the specified current and duty-cycle limits must still be respected.

3 m and 4 m Cable Options

The PSF505 is available with two standard cable lengths:

• 3 m

• 4 m

A 3 m cable can be suitable for compact fabrication workstations where the wire feeder is positioned close to the workpiece.

A 4 m cable provides additional working reach for larger fabrication areas and industrial workstations.

Cable length should be selected according to the distance from the wire feeder, required operator movement and welding wire-feeding conditions.

Avoid unnecessary tight bends and mechanical damage to the cable assembly.

PSF505 Swan Neck, Handle and Trigger

The PSF505 includes a curved swan neck designed to support the front-end consumable assembly.

Its handle houses the mechanical trigger mechanism and provides the operator with a gripping surface for torch positioning.

The complete torch structure includes:

• Swan neck

• Front handle

• Mechanical switch

• Trigger assembly

• Cable support

• Cable assembly

• Rear handle

• Central connector

These components should be inspected and replaced according to their condition and the corresponding torch configuration.

Understanding the PSF505 Duty Cycle

The INWELT PSF505 is listed with a 60% duty cycle.

Duty cycle describes the proportion of a standard ten-minute operating period during which welding equipment can operate at its specified rated load under defined conditions.

At a 60% duty cycle, this corresponds to six minutes of welding during a ten-minute period at the specified rated current.

PSF505 Rating with CO₂ Shielding Gas

• Current: 500A

• Duty Cycle: 60%

• Cooling: Air Cooled

PSF505 Rating with Mixed Shielding Gas

• Current: 400A

• Duty Cycle: 60%

• Cooling: Air Cooled

Why Does Shielding Gas Affect the Torch Rating?

Different shielding-gas compositions can produce different arc characteristics and thermal conditions.

Therefore, the PSF505 should not be treated as having the same current limit under every welding-gas condition.

The correct rating should be selected according to the actual shielding gas and the applicable technical specification.

Can a PSF505 MIG Torch Weld Continuously at 500A?

The listed PSF505 rating is 500A with CO₂ at a 60% duty cycle, not 100%.

Continuous operation at 500A should not be assumed.

If an application requires sustained high-current welding beyond the torch's rated duty cycle, a welding gun with a suitable higher duty-cycle rating or an appropriately specified water-cooled system should be evaluated.

PSF505 MIG Torch Consumables and Spare Parts

The PSF505 uses replaceable components to support shielding-gas delivery, electrical current transfer and welding wire feeding.

The standard front-end assembly includes a gas nozzle, nozzle insulation, contact tip, tip adapter and swan neck.

PSF505 Spare Parts and Component Table

Position	Component	Listed Specification
A	Gas Nozzle	Ø18 mm
A-1	Nozzle Insulation Bushing	PSF505 Configuration
B	Contact Tip	M8 × 37
C	Tip Adapter	M8
D	Steel Wire Liner	Ø1.6–2.0 mm, 3 m / 4 m
1	Swan Neck	PSF505 Configuration
1-0	Swan Neck Insulation Bushing	PSF505 Configuration
1-2	Lock Nut with Screw	PSF505 Configuration
2	Front Handle	PSF505 Configuration
3	Mechanical Switch	Trigger Control
3-1	Trigger Complete	Trigger Assembly
4	Cable Support	Front Cable Support
5	Cable Assembly	3 m / 4 m
6	Back Cable Support	Rear Cable Support
7	Rear Handle	Handle Assembly
8	Adapter Nut	Connection Component
9	Central Connector	Equipment Interface

For bulk orders and replacement projects, buyers should confirm the actual part number, dimensions and applicable torch configuration.

Ø18 mm Gas Nozzle and Nozzle Insulation

The gas nozzle directs shielding gas around the contact tip and welding arc.

The current PSF505 parts list specifies a Ø18 mm gas nozzle.

The nozzle insulation bushing is part of the front-end assembly and helps maintain the required electrical separation between designated components.

When ordering replacement nozzles, confirm:

• Torch model

• Nozzle diameter and overall dimensions

• Nozzle attachment design

• Corresponding insulation bushing

• Existing part number or sample

A similar nozzle diameter does not automatically guarantee compatibility.

M8 Contact Tips and Tip Adapter

The contact tip transfers welding current to the continuously fed electrode wire.

The current INWELT PSF505 parts list specifies an M8 × 37 contact-tip configuration, with the corresponding M8 tip adapter.

The listed contact-tip options include several wire sizes up to Ø1.6 mm.

However, because the torch's overall wire range extends to Ø2.0 mm, the corresponding Ø2.0 mm contact tip should be technically confirmed before ordering.

For replacement contact tips, check:

• Contact-tip thread

• Overall length

• Wire diameter

• Tip bore specification

• Material

• Compatible tip adapter

Contact tips with the same M8 thread may have different overall lengths or front-end dimensions.

Steel Liners for Ø1.2–2.0 mm Wire

The liner guides welding wire through the torch cable toward the contact tip.

The current PSF505 spare-parts list includes a steel liner for Ø1.6–2.0 mm wire, available for 3 m and 4 m cable assemblies.

The PSF505 torch also supports Ø1.2 mm wire at the product level. A matching liner for smaller wire configurations should therefore be selected separately where required.

When selecting a wire liner, confirm:

• Wire diameter

• Wire material

• Cable length

• Liner construction

• Connector-end fit

• Installation and trimming requirements

Incorrect liner selection may cause feeding resistance, inconsistent wire delivery or wire blockage.

Swan Neck, Cable and Connector Components

The swan neck supports the front-end assembly and positions the contact tip and gas nozzle relative to the workpiece.

The cable assembly carries the welding-current path, shielding-gas line, wire liner and trigger-control conductors.

The rear connector connects the torch to the corresponding welding equipment or wire feeder.

Replacement parts should be matched using the existing PSF505 configuration, product drawing or reference sample.

PSF505 ESAB-Style Replacement Gun Compatibility

The INWELT PSF505 is an ESAB-style MIG welding torch designed around a corresponding industrial torch configuration.

It may be evaluated as a replacement welding gun for compatible systems.

However, ESAB-style does not mean that every ESAB welding machine, PSF torch or consumable is automatically interchangeable.

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Product Parameters

Position	Description
A	Gas nozzleΦ18mm
A-1	Nozzle Insulation Bushing
B	Contact Tip M8*37*0.6mm/0.8mm/0.9mm/1.0mm/1.2mm/1.4mm/1.6mm
C	Tip Adapter M8
D	Steel Liner 1.6-2.0mm 3.0m/4m
1	Swan Neck
1-0	Swan Neck Insulation Bushing
1-2	Lock Nut With Screw
2	Front Handle
3	Mechanical Switch
3-1	Trigger Complete
4	Cable Support
5	Cable Assembly 3.0m,4m
6	Back Cable Support
7	Rear Handle
8	Adapter Nut
9	Central Connector
Technical Data
Rating	500A CO2, 400A Mixed Gases
Duty Cycle	60%
Wire Size	Φ1.2-2.0mm
Cooling	Air Cooled

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Our Catalog:

INWELT MIG WELDING TORCH.pdf

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What Should Be Checked Before Replacing an Existing MIG Gun?

Item	Compatibility Check
Welding Machine	Manufacturer and model
Wire Feeder	Model and connection system
Welding Current	Required CO₂ or mixed-gas rating
Duty Cycle	Required operating duty cycle
Cable Length	3 m or 4 m
Central Connector	Mechanical and electrical configuration
Trigger Control	Wiring and connector arrangement
Gas Connection	Gas-feed connection and sealing
Contact Tip	Thread, length and wire diameter
Gas Nozzle	Dimensions and attachment
Tip Adapter	Front-end compatibility
Wire Liner	Diameter, length and connection

For replacement purchases, customers should provide photographs of the original connector, existing torch model and front-end components.

Are All PSF505 Contact Tips Interchangeable?

Not necessarily.

Some PSF505-style front-end systems use contact tips with different overall lengths or material specifications.

An M8 contact tip should not be selected by thread size alone.

The contact tip must match the tip adapter, torch head, nozzle arrangement and welding wire diameter.

Is the PSF505 Compatible with Euro Central Connections?

The current INWELT PSF505 listing includes a central connector configuration described as European-style.

Compatibility must still be confirmed with the actual welding machine and wire feeder.

A different rear connection system may require a different complete torch assembly.

How to Choose the Correct PSF505 MIG Torch

Choosing the correct PSF505 welding gun requires checking the welding application and existing equipment configuration.

Step 1: Confirm the Required Welding Current

Determine the actual welding current and shielding gas.

The standard PSF505 is listed at 500A CO₂ or 400A mixed gas with a 60% duty cycle.

Step 2: Confirm the Welding Wire Diameter

The torch supports Ø1.2–2.0 mm welding wire.

The contact tip and liner must be matched to the selected wire diameter.

Step 3: Select the Cable Length

Choose 3 m for a shorter working distance or 4 m when additional reach is required.

Ensure the cable can be routed without excessive bending.

Step 4: Confirm the Connector

Check the central connector and trigger-control arrangement against the welding equipment.

Step 5: Verify the Consumables

Confirm the gas nozzle, insulation bushing, contact tip, tip adapter and liner specifications.

Step 6: Confirm Purchasing Requirements

For distributor and OEM orders, provide the required quantity, packaging, documentation and any special connector or component requirements.

PSF505 vs. PSF405 MIG Welding Torch

Both models belong to the INWELT PSF Series of gas-cooled MIG welding torches.

They are intended for different welding-current and wire-size requirements.

Specification	PSF405	PSF505
Product Family	PSF Series	PSF Series
Cooling	Gas Cooled	Gas Cooled
Listed Wire Diameter	Ø0.8–1.6 mm	Ø1.2–2.0 mm
Cable Length	3 / 4 / 5 m	3 / 4 m
Welding Process	MIG/MAG	MIG/MAG
Intended Selection	Lower wire-size range	Higher wire-size range and higher-current applications

When Should You Choose PSF405?

Consider the PSF405 for welding applications that require a smaller welding wire diameter or a lower current range.

The torch should be selected using its confirmed current and duty-cycle specifications.

When Should You Choose PSF505?

Consider the PSF505 when the welding application requires a higher listed current rating and supports larger welding wire diameters.

The PSF505 should be selected based on its 500A CO₂ / 400A mixed-gas ratings at 60% duty cycle and the required wire-feeding configuration.

Industrial Applications of the PSF505 MIG Gun

The PSF505 can be considered for industrial MIG/MAG welding applications requiring a compatible higher-current, air-cooled torch.

Heavy Steel Fabrication

The PSF505 may be suitable for fabrication of structural steel components and larger welded assemblies when operating conditions remain within the torch rating.

Industrial Machinery Manufacturing

Machinery manufacturers may use higher-current MIG welding guns for suitable production welding applications involving fabricated steel components.

Equipment Frames and Structural Components

The PSF505 can be evaluated for the welding of industrial frames, supports, brackets and other fabricated components according to the approved welding procedure.

Large Metal Fabrication Workshops

The 3 m and 4 m cable options allow buyers to select a working reach that matches their fabrication layout.

Industrial Maintenance and Repair

For replacement and maintenance projects, the PSF505 should be selected according to the existing machine interface, wire feeder and required current capacity.

The suitability of the torch for a particular weld is determined by the complete welding procedure and equipment configuration, not the torch model alone.

Common PSF505 MIG Torch Problems and Solutions

Proper consumable selection and regular maintenance can help reduce avoidable welding interruptions.

Problem	Possible Cause	Recommended Action
Torch overheating	Excessive current, duty cycle or poor electrical connection	Check rated conditions and electrical connections
Irregular wire feeding	Incorrect liner, worn tip or cable bends	Inspect liner, contact tip and cable routing
Contact-tip burnback	Incorrect contact-tip size or wire-feed problem	Check tip size, wire feed and welding settings
Excessive spatter buildup	Welding-parameter or shielding-gas issue	Inspect settings and clean the nozzle
Poor gas coverage	Blocked nozzle, leakage or poor gas distribution	Check gas nozzle and gas system
Unstable arc	Contact-tip wear or irregular wire feeding	Inspect current transfer and wire feed
Trigger not responding	Mechanical switch or wiring problem	Inspect trigger and control connection
Cable heating	Damaged conductor or loose connection	Inspect cable assembly and connector

Why Does a PSF505 MIG Torch Overheat?

The PSF505 may overheat when operating current or arc-on time exceeds the specified duty-cycle conditions.

Loose connections, damaged cable conductors or worn electrical components can also contribute to excessive heating.

Stop welding and inspect the torch after it has cooled.

Why Does a PSF505 MIG Gun Have Wire-Feeding Problems?

Wire-feeding problems may result from an incorrectly sized liner, a damaged contact tip or excessive cable bending.

Check the welding wire diameter against the installed contact tip and liner.

For Ø2.0 mm wire applications, confirm that the tip, liner and feeder are all correctly configured.

Why Is Shielding-Gas Coverage Poor?

Excessive spatter can restrict the gas nozzle opening.

Leaks, blocked gas passages or incorrect flow settings can also affect shielding-gas coverage.

Inspect the complete gas delivery system rather than replacing the nozzle without diagnosis.

PSF505 Maintenance and Consumable Replacement

Regular inspection of the welding gun and its front-end components can help maintain appropriate operating condition.

Inspect the Gas Nozzle

Remove excessive spatter buildup and check for physical damage.

Check the Contact Tip

Inspect the tip bore and replace the contact tip when wear affects welding-current transfer or wire feeding.

Inspect the Tip Adapter and Insulation

Check for damage, incorrect installation or signs of overheating.

Check the Wire Liner

Inspect the liner when wire feeding becomes inconsistent.

Select a replacement liner that matches the wire diameter and cable assembly.

Inspect the Swan Neck and Cable Assembly

Check for mechanical damage, insulation problems, excessive bending and loose electrical connections.

Inspect the Trigger and Rear Connector

Verify proper mechanical operation and inspect the control connection.

Disconnect the welding equipment and allow the torch to cool before replacing components.

PSF505 MIG Torches for Distributors and OEM Buyers

INWELT supplies PSF505 MIG welding torches for international B2B purchasing requirements.

Typical customers include:

• Welding equipment distributors

• Industrial welding suppliers

• Importers and wholesalers

• Welding equipment manufacturers

• OEM welding brands

• Industrial fabrication companies

• Equipment repair and maintenance suppliers

Wholesale PSF505 MIG Torch Supply

Available purchasing requirements may include:

• Complete PSF505 welding guns

• 3 m and 4 m cable configurations

• Matching gas nozzles

• M8 contact tips and adapters

• Wire liners

• Swan neck components

• Trigger and handle assemblies

• Cable and connector components

• Bulk packaging

• OEM/ODM specifications

OEM and Private-Label PSF505 MIG Guns

For OEM/ODM projects, INWELT can discuss customization requirements based on the customer's technical specifications.

Customization requests may cover:

• Cable length

• Connector configuration

• Product identification

• Material and component specifications

• Packaging design

• Private labeling

• Spare-parts supply

• Bulk-order documentation

Custom requirements should be confirmed using a technical drawing, existing product sample or detailed purchasing specification.

Replacement Parts for Distributor Inventory

For distributor purchasing, maintaining a model-based replacement-parts list can help organize inventory.

Recommended purchasing information includes the torch model, consumable dimensions, original reference number, quantity and packaging specification.

Customers seeking replacement components for an existing PSF505 should confirm the exact consumable variant before bulk ordering.

Frequently Asked Questions About PSF505 MIG Welding Guns

What is a PSF505 MIG welding torch?

The INWELT PSF505 is an ESAB-style gas-cooled MIG/MAG welding gun designed for industrial manual welding. It is listed at 500A CO₂ and 400A mixed gas with a 60% duty cycle.

Is the PSF505 a 500A MIG welding gun?

The current INWELT PSF505 technical specification lists 500A with CO₂ shielding gas and 400A with mixed gas, both at a 60% duty cycle.

Is the PSF505 air-cooled or water-cooled?

The INWELT PSF505 is an air-cooled, also called gas-cooled, MIG welding torch. It does not require an external liquid-cooling system.

What is the duty cycle of the PSF505?

The PSF505 is specified at a 60% duty cycle under its listed rated conditions.

Can the PSF505 operate continuously at 500A?

No. Its listed 500A CO₂ rating is at a 60% duty cycle. Continuous welding at maximum rated current should not be assumed.

What welding wire sizes does the PSF505 support?

The INWELT PSF505 supports Ø1.2–2.0 mm welding wire. The appropriate contact tip and liner must be selected for each configuration.

What cable lengths are available for the PSF505?

INWELT lists 3 m and 4 m cable assemblies.

What gas nozzle does the PSF505 use?

The current INWELT PSF505 spare-parts list specifies a Ø18 mm gas nozzle.

What contact tip does the PSF505 use?

The current INWELT parts list specifies M8 × 37 contact-tip configurations. The corresponding wire diameter and overall dimensions should be verified before ordering.

Can the PSF505 use Ø2.0 mm welding wire?

The torch is listed for wire diameters up to Ø2.0 mm. A compatible Ø2.0 mm contact tip, liner and wire-feeding setup must be confirmed for that configuration.

Are all ESAB-style PSF505 consumables interchangeable?

No universal interchangeability should be assumed. Consumables may differ in dimensions, attachment design and part numbers between configurations and manufacturers.

Is the PSF505 compatible with every MIG welding machine?

No. Compatibility depends on the central connector, welding-current requirements, gas connection and trigger-control interface.

What is the difference between PSF405 and PSF505?

The PSF405 has a listed wire range of Ø0.8–1.6 mm, while the PSF505 supports Ø1.2–2.0 mm wire. They also have different cable-length options and are intended for different welding-current requirements.

Can I buy PSF505 contact tips, nozzles and liners separately?

INWELT provides replacement-component information for the PSF505, including gas nozzles, contact tips, adapters, liners and torch components. The exact part configuration should be confirmed before purchasing.

Does INWELT provide OEM PSF505 welding torches?

Yes. INWELT supports OEM/ODM inquiries for welding torches, including connector, cable, product marking and packaging requirements.

Can distributors order PSF505 MIG guns in bulk?

Yes. INWELT supplies PSF505 MIG welding guns for wholesale, distributor and industrial purchasing projects.

Request a PSF505 MIG Welding Torch Quote

Looking for a PSF505 ESAB-style MIG welding torch manufacturer or wholesale supplier?

INWELT provides PSF505 welding guns and replacement components for distributors, importers, OEM brands and industrial buyers.

To request a quotation, please provide:

• Product model: PSF505

• Required shielding gas and welding current

• Cable length: 3 m or 4 m

• Welding machine and wire feeder model

• Connector configuration

• Welding wire diameter

• Required contact tips, nozzles or liners

• Estimated order quantity

• OEM/ODM requirements

• Destination market

Contact INWELT for PSF505 MIG Welding Torch Technical Details, Bulk Pricing, Spare Parts and OEM/ODM Inquiries.