INWELT PMX-M85 85A CNC Plasma Cutting Torch

85A CNC Plasma Cutting Torch for Mechanized Cutting

The INWELT PMX-M85 is an air-cooled mechanized plasma cutting torch designed for CNC cutting tables, automated plate-cutting systems and industrial machine-cutting applications.

Rated at 85A with a 60% duty cycle, the PMX-M85 uses non-HF arc starting and operates with Air/N₂ as the process gas.

The current INWELT technical specification lists approximately:

• 85A rated current

• 60% duty cycle

• 5.0 bar gas pressure

• 220–230 L/min gas flow

• Air/N₂ process gas

• Non-HF ignition

• Approx. 80-second recommended post-flow

• 6 m standard cable

Unlike a handheld plasma torch, the PMX-M85 should be positioned as a straight machine-torch platform for fixed mounting and automated motion.

It can be integrated into compatible CNC plasma systems using the appropriate cable, connector, control interface and consumable configuration.

INWELT PMX-M85 Technical Specifications

Final compatibility should be confirmed according to the plasma power source, machine controller, start circuit, cable configuration and torch mounting requirements.

Why Use a Machine Torch for CNC Plasma Cutting?

A mechanized plasma torch is designed differently from a conventional handheld torch.

Straight Torch Geometry

A CNC machine torch normally uses a straight cylindrical body that can be mounted consistently in the cutting-table torch holder.

This provides a stable reference for:

• Torch alignment

• Torch height

• Cut angle

• Repeatable positioning

• CNC motion control

Machine-Controlled Arc Start

The cutting sequence is controlled by the CNC or plasma system rather than a hand trigger.

For this reason, the machine torch must be configured for the correct start/control interface.

Repeatable Torch Position

Fixed mounting helps maintain a consistent relationship between:

• Torch axis

• Workpiece

• Piercing height

• Cutting height

This repeatability is particularly important for automated production.

How the PMX-M85 Non-HF Plasma System Works

The PMX-M85 operates as part of a complete plasma cutting system consisting of:

• Plasma power source

• Machine torch

• CNC controller

• Process-gas supply

• Cutting table

• Work connection

• Optional torch-height-control system

Non-HF Arc Starting

The PMX-M85 uses a non-high-frequency starting system.

This distinction is particularly relevant in CNC environments because machine controllers, computers and other electronics operate close to the plasma cutting system.

The power source must use a start architecture compatible with the PMX-M85.

Do not replace an HF torch with a non-HF machine torch without confirming electrical compatibility.

Plasma Arc Formation

Air or nitrogen flows through the torch head, gas-distribution components and cutting nozzle.

Electrical energy ionizes the gas, producing a high-temperature plasma jet.

The nozzle constricts that plasma stream so it can melt conductive metal while the gas removes molten material from the kerf.

PMX-M85 for CNC and Automated Plasma Cutting

The PMX-M85 is suited to automated applications where repeatability and machine integration are more important than handheld ergonomics.

Typical systems include:

• CNC plasma cutting tables

• Automated plate-cutting machines

• Gantry cutting systems

• Profile-cutting equipment

• Straight-line cutting systems

• Integrated fabrication cells

The torch can be used for repetitive production cutting where the CNC system controls travel speed and cutting path.

PMX-M85 45A, 65A and 85A Mechanized Cutting Options

One of the strongest SEO and GEO opportunities on this page is to explain the relationship between torch rating and consumable amperage.

Professional 85A machine-torch platforms commonly support multiple cutting-current levels rather than using only one 85A nozzle.

45A Mechanized Cutting

A 45A consumable configuration can be selected for:

• Thinner plate

• Reduced heat input

• Smaller kerf

• Lower-current CNC cutting

65A Mechanized Cutting

The 65A configuration provides an intermediate cutting level between 45A and 85A.

It can be useful where production requires more speed or capacity than 45A without operating at full 85A output.

85A Mechanized Cutting

The 85A consumable configuration is intended for full-output operation of the PMX-M85 platform.

The nozzle, shield, swirl ring and electrode should all be matched to the intended amperage.

Do not operate a lower-current nozzle at excessive amperage.

PMX-M85 Cutting Tip Sizes

The current consumable family includes tip configurations for several current levels.

The exact INWELT part number and shield combination should be confirmed before ordering.

The nozzle diameter affects plasma constriction, gas flow and current capacity, so consumables should not be selected only by physical appearance.

PMX-M85 Electrode and Swirl Ring

Electrode

The current PMX family uses a replaceable electrode shared across selected 65A, 85A and 105A configurations.

The electrode transfers electrical energy inside the torch.

As it wears, a pit develops at the center.

Excessive electrode wear can cause:

• Unstable arc starting

• Reduced cut consistency

• Accelerated nozzle wear

• Failed starts

Replace the electrode according to actual wear condition.

Swirl Ring

The PMX-M85 uses a gas-distribution swirl component for the 45A–85A range.

The swirl ring helps direct process gas around the electrode and nozzle.

A damaged, dirty or cracked swirl ring can disturb gas flow and reduce arc stability.

PMX-M85 Machine Torch Shield and Front-End Components

Machine-torch consumables should be selected for mechanized operation rather than assuming that hand-torch shields are automatically equivalent.

The correct front-end setup may include:

• Mechanized shield

• Retaining component

• Cutting nozzle

• Electrode

• Swirl ring

Professional 85A competitors explicitly separate hand-torch and machine-torch consumables, including dedicated mechanized 45A, 65A and 85A configurations.

INWELT should follow the same logic on this page.

If your current parts table includes components marked “hand”, move them to the handheld PMX85 page unless engineering confirms that they are also valid for PMX-M85 mechanized operation.                              

Spare Parts Details:

Complete Torch

Our Catalog:

INWELT PLASMA TORCH CATALOG.pdf

Machine Torch vs. Hand Torch: PMX-M85 vs. PMX85

The PMX-M85 and PMX85 should be treated as separate product entities.

Some electrodes, nozzles or swirl-ring components may be shared across related torch families, but the complete torch assemblies should not be presented as interchangeable.

PMX-M85 Cable and Connector Options

Different CNC plasma systems use different electrical, pneumatic and control connections.

Available PMX-M85 configurations can include:

• Integrated connection

• Separate connection

• Central adapter

• Coaxial cable

• Custom OEM adapter

The standard torch lead is 6 m according to the current INWELT specification.

For OEM and machine-builder projects, connection requirements should be confirmed according to:

• Plasma power source

• CNC interface

• Torch-start wiring

• Process-gas connection

• Pilot-arc circuit

• Cable routing

Do not describe the PMX-M85 as universally compatible with all 85A plasma cutters.

PMX-M85 CNC Integration Checklist

Before ordering a mechanized plasma torch, confirm the complete machine system.

Plasma Power Source

Provide:

• Brand

• Model

• Maximum output

• Starting method

CNC Controller

Identify how the controller sends the start command to the plasma system.

Torch Mounting

Confirm:

• Torch-holder diameter

• Available vertical clearance

• Cable routing

• Machine travel

Torch Height Control

Confirm whether the CNC system uses:

• Arc-voltage height control

• Ohmic sensing

• Floating-head sensing

• Another initial-height method

Do not claim that the PMX-M85 supports ohmic sensing unless the specific INWELT consumable/retaining-cap configuration has been verified for that function.

Cable and Connector

Provide clear photos or drawings of:

• Main torch connector

• Control plug

• Gas connection

• Existing cable

This is significantly more reliable than choosing a torch only from machine amperage.

Torch Height Control and Cutting Performance

Consistent torch height is critical in mechanized plasma cutting.

The CNC system normally manages different heights during:

• Initial positioning

• Piercing

• Cutting

• Rapid movement

Incorrect cutting height can contribute to:

• Excessive bevel

• Wider kerf

• Dross

• Premature nozzle wear

• Poor edge quality

Professional 85A systems also offer machine-torch consumables and optional sensing components specifically for automated torch-height control.

The PMX-M85 should therefore be integrated according to the CNC table and height-control manufacturer's requirements.

Piercing Height vs. Cutting Height

Piercing and cutting are different stages of the CNC plasma cycle.

Piercing Height

During piercing, molten metal is expelled upward before the arc fully penetrates the plate.

Using the correct pierce height helps reduce damage to the front-end consumables.

Cutting Height

After the plate is pierced, the torch moves to the required cutting height.

This distance helps control:

• Arc shape

• Bevel

• Kerf width

• Consumable wear

Use the plasma power source's tested cut chart when programming pierce height, delay and cutting height.

Do not use one universal value for every material thickness and current.

CNC Cutting Speed and Consumable Selection

CNC cutting speed should be determined by the complete plasma system.

Important variables include:

• Material

• Plate thickness

• Current

• Nozzle

• Gas pressure

• Torch height

• Desired edge quality

Operating too slowly can increase dross and heat input.

Operating too quickly can cause incomplete penetration or trailing arc behavior.

For best results, use a verified cut chart for the actual plasma power source rather than copying speeds from another 85A system.

How Thick Can an 85A PMX-M85 Cut?

The torch's 85A rating does not define one universal cutting thickness.

Cutting capacity depends on the complete plasma system.

Important factors include:

• Plasma power source

• Material

• Input power

• Cutting current

• Nozzle

• Gas condition

• Cutting speed

• Torch height

• Consumable wear

As a competitor reference, one current 85A mechanized platform states that its 85A mechanized cartridge is optimized for approximately 10–16 mm plate, but that is a tested result for that manufacturer's own complete system and consumable architecture—not a specification that should automatically be copied onto the INWELT PMX-M85.

For INWELT, the strongest future SEO/GEO content would be a first-party cut chart including:

• Material

• Thickness

• Current

• Travel speed

• Gas pressure

• Pierce height

• Cutting height

• Consumable part number

What Materials Can the PMX-M85 Cut?

Plasma cutting is suitable for electrically conductive metals.

When used with a compatible plasma power source, the PMX-M85 can cut materials including:

• Mild steel

• Carbon steel

• Stainless steel

• Aluminum

• Copper

• Brass

• Galvanized steel

• Other electrically conductive alloys

Actual cutting speed and edge quality vary according to the material and complete plasma system.

Recommended Air Supply for PMX-M85

The current INWELT specification lists:

• Process gas: Air / N₂

• Pressure: approximately 5.0 bar

• Gas flow: approximately 220–230 L/min

• Recommended post-flow: approximately 80 seconds

Use Clean, Dry Air

Moisture, oil and particulate contamination can reduce:

• Consumable life

• Arc stability

• Edge quality

• Cutting consistency

Use appropriate air filtration and moisture separation.

Check Pressure Under Flow

Pressure should be confirmed while gas is flowing.

Long hoses, restrictive fittings and contaminated filters can create pressure drop before the gas reaches the torch.

PMX-M85 Plasma Gouging

The PMX consumable family also includes gouging-related components.

Plasma gouging removes metal without cutting completely through the workpiece.

Typical applications include:

• Weld removal

• Defect removal

• Back-gouging

• Joint preparation

• Repair work

For CNC applications, verify whether the machine and motion system are designed for automated gouging before adding this process.

Use dedicated gouging consumables rather than standard cutting nozzles.

Typical Applications for the PMX-M85

The PMX-M85 is designed for automated metal cutting applications such as:

• CNC plasma tables

• Structural steel fabrication

• Plate processing

• Machinery manufacturing

• Agricultural equipment

• Construction equipment

• Shipbuilding

• Railway fabrication

• Heavy vehicle manufacturing

• Industrial production cutting

• Automated fabrication lines

The final torch configuration should be selected according to the actual CNC system rather than industry name alone.

PMX-M85 Maintenance for CNC Production

Machine-torch maintenance is especially important because worn consumables can affect every repeated part produced by the CNC system.

Inspect the Electrode

Check the center pit regularly.

Replace an excessively worn electrode before it damages the nozzle or causes unreliable starting.

Inspect the Cutting Nozzle

Check the nozzle orifice for:

• Enlargement

• Oval shape

• Burn damage

• Contamination

A damaged nozzle can cause bevel and reduced dimensional accuracy.

Inspect the Swirl Ring

Check for:

• Cracks

• Heat damage

• Contamination

Inspect the Shield

Make sure gas passages remain clean and the component seats correctly.

Inspect the Torch Body

Check:

• Threads

• O-rings

• Mounting surface

• Gas leakage

• Heat damage

Check Cable Routing

Make sure CNC motion does not:

• Pull the torch lead

• Create sharp cable bends

• Crush the hose assembly

• Interfere with the gantry

Common PMX-M85 CNC Cutting Problems

Excessive Bevel

Check:

• Torch perpendicularity

• Cutting height

• Nozzle wear

• Travel speed

• Consumable alignment

Heavy Dross

Check:

• Cutting speed

• Current

• Torch height

• Air pressure

• Nozzle condition

Short Consumable Life

Possible causes include:

• Contaminated air

• Incorrect piercing height

• Excessive piercing

• Incorrect current/nozzle combination

• Worn electrode

• Incorrect cutting height

Failed Arc Starts

Check:

• Electrode

• Nozzle

• Gas pressure

• Start/control signal

• Work connection

• Machine compatibility

Inconsistent Cut Dimensions

Inspect:

• Torch mounting

• CNC backlash

• Cutting height

• Consumables

• Travel speed

• Programmed kerf compensation

Not every dimensional problem is caused by the plasma torch.

OEM PMX-M85 CNC Plasma Torch Manufacturing

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

• Plasma equipment manufacturers

• CNC cutting-machine manufacturers

• CNC system integrators

• Welding and cutting equipment brands

• Distributors

• Importers

• Wholesalers

• Industrial suppliers

• Aftermarket consumable companies

OEM and ODM projects can be evaluated according to machine design and target-market requirements.

OEM Configuration Options

Customization may include:

• Customer branding

• Machine-torch body configuration

• Cable length

• Cable assembly

• Central adapter

• Integrated or separate connection

• Coaxial cable

• Custom connector

• Consumable kit

• Private-label packaging

• Technical labels

• Barcodes and cartons

For OEM projects, provide the plasma power source, CNC controller, connector layout, cable length and expected order quantity.

Why Source PMX-M85 Machine Torches from INWELT?

A mechanized plasma torch requires long-term support beyond the initial torch assembly.

INWELT can supply:

• Complete PMX-M85 machine torches

• 45A cutting tips

• 65A cutting tips

• 85A cutting tips

• Gouging tips

• Electrodes

• Swirl rings

• Shields

• Torch heads

• O-rings

• Machine-torch body components

• Cable assemblies

• Central adapters

For CNC equipment manufacturers and distributors, sourcing the machine torch and its consumables through one product program can simplify compatibility management and aftermarket support.

Frequently Asked Questions About the PMX-M85 Machine Torch

What amperage is the INWELT PMX-M85?

The PMX-M85 is rated at 85A according to the current INWELT technical data.

Is PMX-M85 a hand torch or machine torch?

The PMX-M85 should be positioned as a CNC/mechanized machine torch.

The handheld version should be treated separately as PMX85.

Does the PMX-M85 use HF ignition?

No.

The current specification lists non-HF ignition.

What gas does the PMX-M85 use?

The current INWELT specification lists Air/N₂.

What pressure does the PMX-M85 require?

The current technical data lists approximately 5.0 bar.

What gas flow does the PMX-M85 require?

The current specification lists approximately 220–230 L/min.

What cable length is standard?

The current standard length is 6 m.

What cutting currents are available?

The consumable family includes 45A, 65A and 85A cutting configurations.

Can PMX-M85 be used on a CNC plasma table?

Yes, provided the plasma power source, control interface, torch mounting, cable and consumables are compatible.

Does PMX-M85 support torch height control?

It can be integrated into CNC systems using torch height control, but the actual sensing method depends on the plasma power source, controller and consumable configuration.

Do not assume ohmic sensing without verifying the specific setup.

Can PMX-M85 cut stainless steel?

Yes.

A compatible plasma system can cut electrically conductive stainless steel.

Can PMX-M85 cut aluminum?

Yes.

Aluminum is electrically conductive and can be plasma cut using appropriate parameters.

How thick can PMX-M85 cut?

There is no universal thickness defined by the torch alone.

Use the tested cut chart of the complete plasma cutting system.

Can PMX-M85 be used for plasma gouging?

Gouging consumables are available in the related consumable family, but confirm that the power source and machine application support the process.

Is PMX-M85 compatible with every 85A plasma cutter?

No.

The starting system, connector, control circuit, gas supply and machine interface must also match.

Does INWELT provide OEM PMX-M85 machine torches?

Yes.

OEM/ODM configurations can be developed for qualified CNC plasma equipment manufacturers, distributors and system integrators.

Request a Quote for the INWELT PMX-M85 CNC Plasma Cutting Torch

For faster configuration confirmation, provide:

• Plasma power-source brand and model

• Rated cutting current

• CNC controller

• Existing torch model

• Non-HF/HF starting method

• Torch-mounting dimensions

• Main connector photos

• Control interface

• Required cable length

• Cutting-current range

• Consumable requirements

• Estimated order quantity

• INWELT or private-label branding

INWELT can then confirm the appropriate PMX-M85 machine-torch, cable and consumable configuration for your CNC plasma cutting system.