INWELT LT50 50A HF Manual Plasma Cutting Torch

50A HF Manual Plasma Cutting Torch for Professional Metal Cutting

The INWELT LT50 is an air-cooled manual plasma cutting torch designed for fabrication, repair, maintenance and general workshop metal cutting.

The current INWELT configuration is rated at 50A with a 60% duty cycle and uses high-frequency (HF) arc starting.

Its main operating specifications include:

• 50A rated current

• 60% duty cycle

• Air cooling

• HF ignition

• 4.5–5.0 bar operating pressure

• Approx. 120 L/min airflow

• Approx. 50-second recommended post-flow

• Standard 6 m torch lead

Multiple rear connections are available, including 1/8G, 1/4G, M14×1.5, M16×1.5 and central-adapter configurations.

The LT50 also uses a broad consumable family including standard tips, extended tips, conical tips, electrodes, diffusers, outer nozzles, torch heads, handles and circle-cutting accessories.

INWELT LT50 Technical Specifications

Before ordering, confirm the plasma power source, HF starting system, operating current, rear connection and required consumable configuration.

How the LT50 HF Plasma Cutting Torch Works

The LT50 works together with a compatible plasma power source, compressed-air supply and work connection.

Compressed air flows through the torch head, diffuser and cutting consumables.

Electrical energy ionizes the gas, generating a high-temperature plasma arc.

The cutting tip constricts the plasma stream so that concentrated heat melts electrically conductive material while the high-velocity air removes molten metal from the kerf.

High-Frequency Arc Starting

The LT50 uses an HF starting system.

High-frequency electrical energy helps initiate the plasma arc without requiring the operator to mechanically strike the cutting tip against the workpiece.

The plasma cutter must therefore be designed for an HF torch system.

Do not replace a non-HF torch with the LT50 only because the current rating appears similar.

Why Choose the LT50 for Manual Plasma Cutting?

The LT50 is positioned for professional manual cutting applications where a 50A-class HF torch matches the plasma power source.

50A Rated Current

The LT50 is rated at 50A according to current INWELT technical data.

This makes it suitable for compatible plasma cutters operating within that current range.

60% Duty Cycle

The torch is specified at a 60% duty cycle.

Actual thermal load can also be influenced by:

• Arc-on time

• Ambient temperature

• Airflow

• Consumable condition

• Cutting current

Do not routinely operate the torch beyond its verified current and duty-cycle rating.

Air-Cooled Construction

The LT50 does not require a separate liquid-cooling circuit.

Compressed air contributes both to plasma formation and heat removal from the torch.

6 m Standard Lead

The standard 6 m lead provides practical working reach for fabrication shops, repair stations and maintenance applications.

LT50 Complete Torch Connector Options

INWELT supplies several complete LT50 configurations.

These connector options are one of the strongest advantages of the LT50 product family for distributors supporting different plasma machines.

A mechanical thread match alone does not guarantee full compatibility.

The power/gas interface, pilot-arc arrangement and control circuit should also be checked.

Spare Parts Details:

How to Confirm LT50 Plasma Cutter Compatibility

A replacement plasma torch should not be selected only by current rating or physical appearance.

Check HF Starting

The plasma power source must be designed for an HF torch system.

Check Output Current

The LT50 is positioned as a 50A torch.

Do not assume that the presence of 60A or 70A consumables in a related consumable family means the complete LT50 torch is rated for those currents.

Check the Rear Connection

Available LT50 connections include:

• 1/8G

• 1/4G

• M14×1.5

• M16×1.5

• Central adapter

Check the Plasma Cutter Interface

For replacement projects, provide:

• Plasma cutter brand

• Machine model

• Maximum output current

• Existing torch model

• Main connector photo

• Pilot-arc connection photo

This is more reliable than describing the LT50 as universally compatible with standard plasma cutters.

LT50 Standard Cutting Tips

The LT50/LT70 consumable family includes several standard cutting-tip sizes.

Different nozzle diameters can be used within related LT50/LT70 consumable configurations.

The correct tip should be matched to the plasma power source and operating current.

Do not choose nozzle diameter solely according to physical fit.

Which Cutting Tip Should the LT50 Use at 50A?

A Ø1.0 mm tip is the main 50A reference size in closely related CB50-style consumable systems.

The current INWELT LT50 range includes several Ø1.0 mm tips, including standard, conical and extended configurations.

For the strongest technical page, INWELT should eventually publish a verified table showing:

• Tip code

• Tip diameter

• Recommended amperage

• Cutting mode

• Compatible shield

• Material/application

That first-party mapping would be more useful for SEO and generative search than a generic statement such as “high-quality nozzle.”

LT50 Extended Cutting Tips

Extended tips provide additional reach where a standard consumable cannot easily access the cutting area.

Current INWELT parts include:

Extended tips can be useful for:

• Recessed areas

• Corners

• Repair work

• Restricted-access cutting

They should still be operated within the verified current range of the torch and plasma power source.

LT50 Extended Conical Tip

INWELT also lists:

IJWV0070-10 / Ref. 1306 – Extended conical tip Ø1.0 mm / LT50

A conical tip changes the front-end geometry and may provide improved access in selected manual cutting applications.

Use it only with the corresponding shield and electrode arrangement.

LT50 Conical Cutting Tip

The current parts system also includes:

IJWV0075-10 / Ref. 1305 – Conical tip Ø1.0 mm / LT50-70

The conical configuration should be matched to the required cutting mode and front-end assembly.

Do not mix consumables from different assemblies solely because the threads appear to fit.

LT50 HF Electrodes

The LT50 uses dedicated HF-compatible electrode configurations.

Standard HF Electrode

INWELT Code: IJWC0073
Reference: 1521-HF

Application:

HF Plasma / LT50

The electrode transfers electrical energy inside the torch and gradually wears during cutting and repeated arc starts.

Replace it when the central wear pit becomes excessive.

Extended HF Electrode

INWELT Code: IJWC0026
Reference: 1518-HF

This electrode is used with compatible extended-tip configurations.

The extended electrode should be paired with the correct nozzle and shield system.

LT50 Gas Diffuser

The current diffuser is:

INWELT Code: IJWG0013

Application:

LT50-70

The diffuser helps control compressed-air distribution through the torch front end.

A cracked, distorted or contaminated diffuser can negatively affect plasma stability.

Inspect the diffuser whenever consumables are replaced.

LT50 Outer Nozzle Options

The current product system includes at least two outer nozzle configurations.

Bakelite Outside Nozzle

INWELT Code: IJWT0019-03
Reference: 5.710.121

Gray Glass-Fiber Outside Nozzle

INWELT Code: IJWT0019-01

These outer components help insulate and protect the torch front end.

Replace them when cracked, burned or mechanically damaged.

LT50 Torch Head, Handle and Trigger Components

INWELT supplies individual service parts for LT50 torch repair.

This parts-level structure is particularly useful for distributors and repair companies because the torch can be maintained rather than treated as a single disposable assembly.

LT50 Cable Assemblies

The current INWELT product family includes:

Machine-torch LTM50 cable assemblies are also present in the broader parts family.

For this LT50 manual-torch page, keep the manual LT50 cable assemblies first and move LTM50 machine components into a separate subsection or onto the LTM50 product page.

This improves entity clarity for Google and AI search systems.

LT50 vs. LTM50: Manual Torch vs. Machine Torch

LT50 and LTM50 should be treated as related but separate complete products.

Some consumables and cable components may be shared across the family.

However, the complete torch assemblies should not be described as interchangeable without technical confirmation.

LT50 Circle-Cutting Accessories

The LT50 family includes accessories for controlled circular cutting.

Current INWELT parts include:

• Circle-cutting attachment

• Wheel spacer with spanner

These accessories can help the operator maintain a more consistent cutting radius and torch position.

Confirm the exact accessory code and mechanical compatibility before ordering.

What Metals Can the LT50 Plasma Torch Cut?

Plasma cutting works on electrically conductive metals.

When used with a compatible plasma cutting system, the LT50 can cut materials such as:

• Mild steel

• Carbon steel

• Stainless steel

• Aluminum

• Copper

• Brass

• Galvanized steel

The torch itself does not determine the maximum thickness for each material.

How Thick Can a 50A LT50 Plasma Torch Cut?

The current page contains conflicting figures.

One area states up to 25 mm, while another says up to 12 mm mild steel.

Those values should not both remain on the live page.

Cutting capacity is determined by the complete plasma system, including:

• Plasma power source

• Input power

• Material

• Actual current

• Nozzle diameter

• Air pressure

• Travel speed

• Torch height

• Required edge quality

Professional plasma manufacturers also distinguish between:

Recommended cutting capacity
Productive cutting with acceptable speed and edge quality.

Maximum cutting capacity
Thicker material cut at reduced speed.

Severance capacity
Maximum thickness that can be separated, normally with reduced edge quality.

For the INWELT LT50, publish a thickness figure only when it is supported by an actual INWELT system test.

Recommended Air Supply for the LT50

The current INWELT specification lists:

• Process gas: Air

• Pressure: approximately 4.5–5.0 bar

• Gas flow: approximately 120 L/min

• Post-flow: approximately 50 seconds

Use Clean, Dry Compressed Air

Water, oil and particulate contamination can negatively affect:

• Arc stability

• Nozzle life

• Electrode life

• Cut consistency

Use suitable filtration and moisture separation.

Verify Airflow with the Actual Plasma System

Comparable 50A HF torch systems in the market can specify different airflow requirements.

Do not copy another manufacturer's airflow figure.

Use the verified INWELT requirement for the LT50 and plasma power source.

LT50 Contact Cutting and Stand-Off Cutting

Different consumable configurations can require different torch-to-work distances.

Contact / Drag Cutting

A correctly designed spacer or shield can allow the torch to maintain the intended position relative to the workpiece.

Do not drag an exposed cutting nozzle directly on the plate unless the consumable system is specifically designed for contact cutting.

Stand-Off Cutting

For a stand-off configuration, the operator maintains a controlled distance between the torch and workpiece.

Correct stand-off can help protect consumables and maintain plasma-arc geometry.

Use the configuration specified for the selected consumables.

Our Catalog:

INWELT PLASMA TORCH CATALOG.pdf

Typical Applications for the LT50

The LT50 is suitable for professional manual plasma cutting within its verified 50A rating.

Typical applications include:

• Sheet-metal fabrication

• Automotive repair

• Machinery maintenance

• Agricultural equipment

• Construction repair

• HVAC fabrication

• General workshop cutting

• Metal artwork

• Industrial maintenance

• Field repair

The correct torch should be selected according to the plasma cutter rather than the industry name alone.

LT50 Maintenance and Consumable Inspection

Inspect the Electrode

Replace the electrode before excessive center wear causes poor arc starting or damages the cutting tip.

Inspect the Cutting Tip

Check the nozzle orifice for:

• Enlargement

• Oval shape

• Burn damage

• Heavy contamination

Inspect the Diffuser

Keep gas passages clean.

Replace cracked or damaged components.

Inspect the Outer Nozzle

Do not operate with cracked insulating parts.

Inspect the O-Ring

Replace damaged or hardened seals if gas leakage is detected.

Inspect the Cable Assembly

Look for:

• Cuts

• Abrasion

• Heat damage

• Severe bends

• Loose fittings

Common LT50 Plasma Cutting Problems

Difficult Arc Starting

Check:

• Electrode wear

• Cutting tip

• HF ignition

• Air pressure

• Work connection

• Torch connection

Excessive Dross

Check:

• Travel speed

• Cutting current

• Material thickness

• Torch height

• Consumable condition

Angled Cut

Possible causes include:

• Worn nozzle

• Incorrect torch angle

• Damaged consumables

• Disturbed airflow

Consumables Wear Too Quickly

Check:

• Contaminated air

• Incorrect tip/current combination

• Excessive arc starts

• Incorrect torch distance

• Worn electrode

Torch Overheats

Check:

• Actual welding current

• Duty cycle

• Airflow

• Post-flow

• Cable connections

Stop cutting and identify the cause before continuing.

OEM LT50 Plasma Torch Manufacturing by INWELT

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

• Plasma cutter manufacturers

• Welding and cutting equipment brands

• Importers

• Distributors

• Wholesalers

• Industrial suppliers

• Repair companies

• Consumable suppliers

OEM and ODM projects can be developed according to machine-interface and target-market requirements.

Customization may include:

• Customer branding

• Product labels

• Handle marking

• Torch lead

• Rear connection

• Consumable kits

• Private-label packaging

• Instruction manuals

• Barcodes

• Bulk cartons

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

Why Source LT50 Torches and Consumables from INWELT?

The LT50 product system includes:

• Complete 50A manual torches

• Five connector configurations

• Standard cutting tips

• Extended tips

• Conical tips

• HF electrodes

• Diffusers

• Outer nozzles

• Torch heads

• Handles

• Triggers

• Cable assemblies

• Connector adapters

• Circle-cutting accessories

For distributors, sourcing both complete torches and replacement parts from one product program can simplify compatibility management and aftermarket support.

Frequently Asked Questions About the LT50 Plasma Cutting Torch

What amperage is the INWELT LT50?

The LT50 is rated at 50A according to the current INWELT technical data.

What is the LT50 duty cycle?

The current specification lists a 60% duty cycle.

Does the LT50 use HF ignition?

Yes.

The LT50 uses high-frequency arc starting.

Is LT50 a hand torch or machine torch?

LT50 is the manual/handheld configuration.

The related LTM50 is intended for machine or CNC applications.

What gas does the LT50 use?

The current INWELT specification lists compressed air.

What pressure does the LT50 require?

Approximately 4.5–5.0 bar according to the current technical data.

What airflow does the LT50 require?

The current INWELT specification lists approximately 120 L/min.

What cable length is standard?

The standard LT50 torch lead is 6 m.

What connector options are available?

Current configurations include:

• 1/8G

• 1/4G

• M14×1.5

• M16×1.5

• Central adapter

Which cutting tips are available?

The LT50/LT70 consumable family includes standard, extended and conical tips in several diameters, including Ø1.0, Ø1.1 and Ø1.2 mm.

Which electrode does LT50 use?

Current INWELT parts include:

IJWC0073 / 1521-HF – standard HF electrode

and

IJWC0026 / 1518-HF – extended HF electrode

Can the LT50 cut stainless steel?

Yes.

A compatible plasma system can cut electrically conductive stainless steel.

Can the LT50 cut aluminum?

Yes.

Aluminum is electrically conductive and can be plasma cut using a suitable system.

How thick can the LT50 cut?

There is no universal thickness determined by the torch alone.

Use the tested cutting capacity of the complete plasma cutter.

Is LT50 compatible with every 50A plasma cutter?

No.

HF starting, connector, pilot-arc arrangement and power/gas interface must also match.

Does INWELT supply LT50 spare parts?

Yes.

INWELT supplies cutting tips, electrodes, diffusers, outer nozzles, torch heads, handles, triggers, cable assemblies and related accessories.

Does INWELT offer OEM LT50 plasma torches?

Yes.

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

Request a Quote for the INWELT LT50 Plasma Cutting Torch

For compatibility confirmation, provide:

• Plasma cutter brand and model

• Rated output current

• HF starting method

• Existing torch model

• Rear connector photo

• Required torch lead

• Consumable requirements

• Estimated purchasing quantity

• INWELT or private-label branding

INWELT can then confirm the appropriate LT50 torch and consumable configuration.