INWELT PMX45 45A Non-HF Plasma Cutting Torch

45A Non-HF Plasma Cutting Torch for Professional Metal Cutting

The INWELT PMX45 is an air-cooled handheld plasma cutting torch designed for professional fabrication, repair, maintenance and general metal-cutting applications.

The PMX45 is positioned around 45A operation with a 60% duty cycle, non-high-frequency arc starting and Air/N₂ process gas.

The standard torch assembly uses a 6 m cable, while several rear-connection and control configurations are available, including 1/4G integrated, 1/4G separate, central-adapter, 2-wire, 4-wire and coaxial cable arrangements.

The current INWELT specification lists approximately 5.0 bar operating pressure, 160 L/min gas flow and approximately 60 seconds recommended post-flow.

INWELT also supplies matching cutting tips, electrodes, swirl rings, shields, torch heads, handles, triggers, cable assemblies and central adapters, allowing distributors and equipment manufacturers to source both complete PMX45 torches and aftermarket replacement parts.

INWELT PMX45 Technical Specifications

Before ordering, confirm the plasma power source, output current, arc-starting system, rear connector, trigger/control wiring and process-gas requirements.

How the PMX45 Non-HF Plasma Cutting Torch Works

The PMX45 operates as part of a complete plasma cutting system consisting of the torch, plasma power source, process-gas supply and work connection.

Non-HF Arc Starting

The INWELT PMX45 uses a non-high-frequency starting system.

Unlike an HF-start torch, it does not rely on a high-frequency ignition circuit as part of the arc-starting process.

This distinction is important because HF and non-HF plasma torches are not automatically interchangeable.

The plasma power source must use an arc-starting system compatible with the PMX45 torch configuration.

Air or Nitrogen Forms the Plasma Jet

Compressed Air/N₂ enters the torch and passes through the internal gas-distribution components.

Electrical energy ionizes the process gas and forms a high-temperature plasma arc.

The cutting nozzle constricts the arc into a concentrated plasma jet that melts electrically conductive material while the high-velocity gas removes molten metal from the kerf.

Post-Flow Helps Cool the Torch

The current INWELT configuration recommends approximately 60 seconds of post-flow.

Continued gas flow after cutting helps remove residual heat from the torch head and consumables.

Allow the plasma cutter's normal post-flow cycle to finish whenever possible.

Key Features of the INWELT PMX45

45A Professional Cutting Capacity

The PMX45 is designed around 45A plasma cutting.

This makes it suitable for portable fabrication, repair, maintenance and general metal-cutting applications where a compatible 45A-class plasma system is used.

The torch rating should not be treated as a universal material-thickness specification.

60% Duty Cycle

The INWELT PMX45 is specified at a 60% duty cycle.

Duty cycle describes the allowable operating time at rated conditions within a defined test period before sufficient cooling is required.

Actual torch temperature can also be affected by ambient temperature, airflow, cutting technique and consumable condition.

Air-Cooled Design

The PMX45 does not require a separate liquid-cooling circuit.

Air/N₂ is used as the process gas, simplifying the overall torch system.

6 m Cable Assembly

The standard 6 m cable provides practical working reach for fabrication shops, maintenance work and general industrial cutting.

PMX45 Compatibility: What to Check Before Ordering

Do not select a PMX45 replacement torch only because the machine is described as a 40A, 45A or 60A plasma cutter.

Compatibility depends on several factors.

Check the Arc-Starting Method

The plasma cutter must use a starting system compatible with the PMX45's non-HF configuration.

A machine designed for HF ignition may require a different torch platform.

Check the Output Current

The PMX45 page should be positioned around 45A operation unless INWELT engineering verifies a separate higher-current PMX45P configuration.

Do not routinely operate the standard PMX45 above its verified rating.

Check the Rear Connector

Available configurations include:

• 1/4G integrated

• 1/4G separate

• Central adapter

Mechanical fit alone does not confirm electrical compatibility.

Check Trigger and Control Wiring

INWELT supplies configurations including:

• 2-wire control

• 4-wire control

• Coaxial cable

The selected cable assembly must match the machine's control circuit.

Provide Machine Information for Replacement Orders

For compatibility confirmation, provide:

• Plasma cutter brand

• Machine model

• Rated output current

• Existing torch model

• Main connector photo

• Trigger/control connector photo

This is more reliable than assuming that every machine labeled CUT40, CUT45 or CUT60 uses the same torch.

PMX45 Cable and Connector Configurations

The current INWELT PMX45 system includes several 6 m cable configurations.

A 5-pin plasma torch-side central adapter is also available under INWELT code:

IZX0078

Before publishing the additional IVN018060xx cable assemblies as standard PMX45 components, confirm whether these belong to a separate 60/65A PMX45P configuration.

PMX45 45A Cutting Tips and Consumables

The PMX45 front end uses replaceable consumables that directly affect arc stability and cutting quality.

45A Cutting Tip

INWELT Code: IVU0657-09

Specification:

Ø0.9 mm / PMX45 / 45A

This is the primary standard 45A cutting tip currently listed for the PMX45.

45A PRO Cutting Tip

INWELT Code: IVU0659-09

Specification:

Ø0.9 mm / PMX45 / 45A / PRO

This provides another 45A consumable configuration within the current INWELT parts system.

Always confirm which shield, electrode and swirl-ring combination belongs with the selected tip.

PMX45 Electrode, Swirl Ring and Shield Components

45A Electrode

INWELT Code: IVB3045

Application:

PMX45 / 45A

The electrode transfers electrical energy through the torch.

As it wears, a pit develops at its center.

Excessively worn electrodes can contribute to poor starting, unstable cutting and accelerated nozzle wear.

45A Swirl Ring

INWELT Code: IVF3000

Application:

PMX45 / 45A

The swirl ring controls gas distribution around the electrode and nozzle.

A cracked, burned or contaminated swirl ring can change plasma-gas flow and reduce arc stability.

Hand Shield Cap

INWELT Code: ISM0674

Application:

PMX45 / Hand / 45A

The shield helps protect the cutting nozzle and establishes the correct front-end configuration.

PRO Hand Shield

INWELT Code: ISM0629

Application:

PMX45 / Hand / PRO

Confirm the intended nozzle and process combination when selecting the PRO configuration.

Outside Nozzle

INWELT Code: IVS0692

Application:

PMX45

Inspect front-end components regularly for cracks, heat damage and blocked gas passages.

PMX45 Torch Head and Service Components

INWELT also supplies replacement service components for PMX45 torch repair.

Plasma Torch Head

INWELT Code: IVZ0693-01

Application:

PMX45 plasma torch head

O-Ring

INWELT Code: IFT8508

Specification:

Ø16 × 1.8 mm / NBR / black

Replace damaged, hardened or leaking seals.

Manual Plasma Handle

INWELT Code: IGV0038-01

Trigger

INWELT Code: IHQ0070

Trigger Protection Component

INWELT Code: IHJ0722

These service parts allow distributors and repair companies to support the torch beyond normal consumable replacement.

Standard Cutting, Drag Cutting and Gouging

Professional 45A plasma systems often distinguish between different front-end configurations according to the process.

Standard Cutting

Standard cutting uses a nozzle, electrode, swirl ring and shield appropriate for normal plate cutting.

Typical applications include:

• Sheet cutting

• Plate cutting

• Fabrication

• Repair

• General metal work

Drag Cutting

A drag shield allows the front of the torch to contact or closely follow the workpiece while maintaining the intended relationship between the nozzle and the material.

Do not drag an unprotected cutting nozzle directly on the workpiece unless the consumable system is specifically designed for it.

Plasma Gouging

Gouging removes metal without cutting completely through the workpiece.

Typical applications include:

• Weld removal

• Defect removal

• Back-gouging

• Joint preparation

• Repair and rework

The current PMX45 parts system includes gouging-related components.

Use the correct gouging nozzle and shield rather than standard cutting consumables.

Spare Parts Details:

Our Catalog:

INWELT PLASMA TORCH CATALOG.pdf

PMX45 vs. PMX45P: Keep 45A and 65A Ratings Separate

The current INWELT parts table contains both:

IVU0657-09 – PMX45 / 45A

and

IVU0657-11 – PMX45P / 65A

as well as corresponding PRO tips and additional cable assemblies.

For SEO, GEO and technical accuracy, avoid presenting these as one universal PMX45 specification.

If PMX45P is a verified separate 65A torch configuration, identify it clearly as a separate variant with its own:

• Rated current

• Consumables

• Cable assembly

• Technical specifications

• Product schema

If the main product on this URL is PMX45, keep the visible primary product specification centered on 45A.

This prevents search engines and buyers from receiving conflicting answers about the product's actual rated current.

What Materials Can the PMX45 Cut?

Plasma cutting works on electrically conductive metals.

When connected to a compatible plasma cutting system, the PMX45 can be used for materials including:

• Mild steel

• Carbon steel

• Stainless steel

• Aluminum

• Copper

• Brass

• Galvanized steel

• Other electrically conductive metals

Actual cutting performance depends on the complete plasma cutting system and operating parameters.

How Thick Can a 45A PMX45 Plasma Torch Cut?

There is no universal cutting-thickness value determined by the torch alone.

Actual performance depends on:

• Plasma power source

• Material type

• Input power

• Cutting current

• Nozzle size

• Gas pressure and flow

• Travel speed

• Torch-to-work distance

• Consumable condition

• Required edge quality

Different manufacturers also distinguish between:

Recommended cutting capacity
Productive cutting with acceptable speed and quality.

Maximum cutting capacity
Thicker material cut at reduced travel speed.

Severance capacity
Maximum material thickness that can be separated, usually with lower edge quality.

For this reason, avoid claiming that the PMX45 universally cuts “10–15 mm at 60A.”

Instead, use the tested cut chart of the actual plasma power source.

Recommended Air Supply for the PMX45

The current INWELT PMX45 technical data lists:

• Process gas: Air / N₂

• Pressure: approximately 5.0 bar

• Gas flow: approximately 160 L/min

• Recommended post-flow: approximately 60 seconds

Use Clean, Dry Compressed Air

Water, oil and particulate contamination can negatively affect:

• Arc stability

• Nozzle life

• Electrode life

• Cut quality

Use suitable compressed-air filtration and moisture separation.

Check Pressure While Gas Is Flowing

Static regulator pressure may be different from actual operating pressure.

Filters, hoses, regulators and fittings can create pressure drop.

Follow the plasma cutter manufacturer's correct pressure-setting procedure.

PMX45 Hand Torch vs. Machine Torch

The PMX45 on this page is primarily configured as a manual handheld torch.

Hand Torch

A hand torch typically uses:

• Angled handle

• Operator trigger

• Manual movement

It is suitable for repair, maintenance and general fabrication.

Machine Torch

A mechanized or CNC torch normally uses:

• Straight torch body

• Fixed mounting

• Machine-controlled start

• CNC interface

Professional 45A systems often use separate hand and machine-torch configurations.

If the application requires CNC plasma cutting, use the appropriate machine-torch version rather than assuming the PMX45 hand torch can be directly substituted.

Typical Applications for the PMX45 Plasma Torch

The PMX45 is suitable for professional light- to medium-duty plasma cutting where a compatible 45A-class system is used.

Typical applications include:

• General fabrication

• Automotive repair

• Machinery maintenance

• Agricultural equipment

• Construction repair

• HVAC and ductwork

• Sheet-metal fabrication

• Structural maintenance

• Workshop cutting

• Metal artwork

• Weld removal

• Field repair

The final torch selection should always be based on machine compatibility rather than industry name alone.

PMX45 Maintenance and Consumable Inspection

Inspect the Electrode

Replace the electrode before the central wear pit becomes excessive.

Running an electrode beyond its useful condition can accelerate nozzle wear.

Inspect the Cutting Tip

Check for:

• Enlarged orifice

• Oval opening

• Burn damage

• Heavy contamination

A damaged nozzle can cause angled cuts and unstable plasma flow.

Inspect the Swirl Ring

Keep gas passages clean.

Replace the swirl ring if it becomes cracked or heat damaged.

Inspect the Shield

Make sure gas holes remain open and the shield is not cracked.

Inspect the Torch Head

Check:

• Threads

• O-ring

• Gas leakage

• Heat damage

Replace damaged seals before returning the torch to service.

Common PMX45 Cutting Problems and Solutions

Difficult Arc Starting

Check:

• Electrode wear

• Nozzle condition

• Gas pressure

• Work connection

• Rear connector

• Starting-system compatibility

Excessive Dross

Check:

• Travel speed

• Current

• Material thickness

• Torch height

• Gas flow

• Consumable wear

Angled Cut

Possible causes include:

• Worn nozzle opening

• Incorrect torch angle

• Misaligned consumables

• Disturbed gas flow

Consumables Wear Too Quickly

Check:

• Current setting

• Nozzle amperage

• Air quality

• Piercing technique

• Torch height

• Electrode condition

Torch Overheats

Possible causes include:

• Current above the verified rating

• Excessive duty cycle

• Restricted airflow

• Insufficient post-flow

• Damaged cable

• Loose electrical connection

Stop operation and identify the cause before continuing.

OEM PMX45 Plasma Cutting Torch Manufacturing by INWELT

INWELT supplies plasma cutting torches and replacement consumables to professional B2B customers including:

• Plasma cutter manufacturers

• Welding and cutting equipment brands

• Importers

• Distributors

• Wholesalers

• Industrial suppliers

• Repair companies

• Aftermarket consumable brands

OEM and ODM projects can be evaluated according to machine interface, connector requirements and target market.

OEM and Private-Label Options

Customization may include:

• Customer branding

• Handle marking

• Product labels

• Cable assembly

• Rear connector

• 2-wire or 4-wire control

• Central adapter

• Coaxial cable

• Consumable kits

• Private-label packaging

• Instruction manuals

• Barcode and carton requirements

For OEM projects, provide the plasma cutter specification, starting method, required connector and expected order quantity.

Why Source PMX45 Torches and Consumables from INWELT?

INWELT supplies complete PMX45 torch assemblies together with corresponding service parts and consumables.

The available PMX45 product system includes:

• 45A cutting tips

• PRO cutting tips

• Electrodes

• Swirl rings

• Shields

• Outside nozzles

• Gouging components

• Torch heads

• O-rings

• Handles

• Triggers

• Cable assemblies

• Central adapters

For professional distributors, sourcing the torch and replacement parts together can simplify procurement, compatibility management and aftermarket support.

Exact INWELT part numbers also make repeat ordering easier than relying on generic descriptions such as “PMX45 compatible consumables.”

Frequently Asked Questions About the PMX45 Plasma Cutting Torch

What amperage is the INWELT PMX45?

The main INWELT PMX45 should be positioned as a 45A plasma cutting torch.

If INWELT offers a separate 65A PMX45P variant, its specifications should be presented separately.

Does the PMX45 use HF ignition?

No.

The current INWELT PMX45 uses a non-HF starting configuration.

What gas does the PMX45 use?

The current specification lists Air/N₂.

What gas pressure does the PMX45 require?

The current INWELT technical data lists approximately 5.0 bar.

What gas flow does the PMX45 require?

The current INWELT specification lists approximately 160 L/min.

What cable length is standard?

The standard PMX45 cable is 6 m.

What is the standard 45A nozzle size?

The current INWELT parts list includes:

IVU0657-09 – Ø0.9 mm / PMX45 / 45A

and

IVU0659-09 – Ø0.9 mm / PMX45 / 45A / PRO

What electrode does the PMX45 use?

INWELT lists:

IVB3045 – Electrode / PMX45 / 45A

What swirl ring does the PMX45 use?

INWELT lists:

IVF3000 – Swirl Ring / PMX45 / 45A

Can the PMX45 be used for gouging?

The INWELT parts system includes gouging-related consumables.

The plasma cutter and complete consumable setup must also support gouging.

Can the PMX45 cut stainless steel?

Yes.

A compatible plasma cutting system can cut electrically conductive stainless steel when suitable operating parameters are used.

Can the PMX45 cut aluminum?

Yes.

Aluminum is electrically conductive and can be plasma cut with the correct system configuration.

How thick can the PMX45 cut?

There is no universal thickness determined by the torch alone.

Use the plasma power source manufacturer's recommended-cut, maximum-cut and severance specifications.

Can I use the PMX45 on any CUT45 or CUT60 plasma cutter?

No.

The arc-starting system, rear connector, control wiring, process gas and electrical interface must also match.

What is the difference between PMX45 and PMX45P?

The current INWELT spare-parts table indicates separate 45A PMX45 and 65A PMX45P-related components.

Confirm the engineering specification before presenting PMX45P as a standard PMX45 operating mode.

Does INWELT manufacture OEM PMX45 plasma torches?

Yes.

OEM/ODM and private-label options are available for qualified plasma equipment manufacturers, brands, distributors, importers and wholesalers.

Request a Quote for the INWELT PMX45 Plasma Cutting Torch

For faster compatibility confirmation, provide:

• Plasma cutter brand and model

• Rated output current

• Existing torch model

• Starting method

• Main connector photo

• Trigger/control plug photo

• Required cable configuration

• Cutting or gouging requirement

• Required consumables

• Estimated order quantity

• INWELT or private-label branding

INWELT can then confirm the appropriate PMX45 torch and consumable configuration for your plasma cutting system.