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FAQ

  • Q What welding products does INWELT manufacture?

    A

    INWELT manufactures and exports MIG torches (including heavy-duty and push-pull guns), TIG torches, plasma torches and welding guns, robotic and laser torches, smoke extraction equipment, and welding torch accessories. Products cover the full welding ecosystem — from MIG/TIG to plasma, from AI intelligent equipment to green welding systems.


  • Q What tests does every INWELT torch pass before shipping?

    A

    Every torch leaving the production line is 100% tested, not sampled, through five key tests: Conductivity test, Airflow test, Short-circuit test, Resistance test, Insulation test. Water-cooled torches additionally undergo water flow rate and air-tightness testing.


  • Q Why does INWELT use pure copper cables in its welding torches?

    A

    Cables are not accessories — they are the lifeblood of the welding torch. During welding, resistance, temperature rise and voltage fluctuation directly affect weld stability and quality. That is why INWELT insists on 99.9% oxygen-free copper cables with the correct cross-sectional area, exceeding national specifications.


  • Q What Are Welding Fumes?

    A

    Welding fumes are airborne particles and gases generated when heat from welding melts or vaporizes metal, filler materials, coatings, fluxes, and other substances around the welding arc. Their composition varies depending on the welding process, base metal, consumables, coatings, and operating conditions.

  • Q What Are the Health Risks of Welding Fumes?

    A

    Exposure to welding fumes can cause short-term irritation and respiratory symptoms and may contribute to serious long-term occupational health risks. Potential effects depend on the welding process, materials, exposure concentration, duration, ventilation, and individual circumstances.

  • Q How Do You Prevent Welding Fume Exposure?

    A

    The most effective way to prevent welding fume exposure is to control fumes at the source. Manufacturers can reduce unnecessary welding, use lower-fume processes where practical, install local exhaust ventilation, use fume extraction guns or welding fume extractors, maintain good ventilation, and provide suitable respiratory protection when engineering controls are insufficient.

  • Q What Is Welding Fume Extraction?

    A

    Welding fume extraction is the process of capturing and filtering airborne contaminants generated during welding before they disperse throughout the workplace. Local extraction systems can capture fumes close to the welding arc, while mobile or centralized welding fume extractors remove and filter contaminated air.

  • Q How Does a Welding Fume Extractor Work?

    A

    A welding fume extractor uses a fan or blower to draw contaminated air through an extraction arm, hose, hood, or extraction welding gun. The contaminated air passes through one or more filters that capture particulate matter before the filtered air is discharged according to the system design and applicable requirements.

  • Q What Is the Best Way to Remove Welding Fumes?

    A

    The best method is usually to capture welding fumes as close to the source as practical. Depending on the application, this may involve an extraction welding gun, local exhaust hood, extraction arm, mobile welding fume extractor, or engineered extraction system for robotic welding cells.

  • Q What Is a Welding Fume Extraction Gun?

    A

    A welding fume extraction gun is a welding torch designed to capture welding fumes near the welding arc while welding is being performed. The gun is typically connected to a suitable extraction and filtration system, allowing fumes to be removed close to their source rather than dispersing through the workshop.

  • Q What Is the Difference Between a Welding Fume Extractor and a Fume Extraction Gun?

    A

    A welding fume extractor is the air-moving and filtration equipment that removes contaminants from welding operations, while a fume extraction gun captures fumes directly near the welding arc. In many systems, the extraction gun and fume extractor work together as a complete source-capture solution.

  • Q What Is the Best Welding Fume Extractor for Industrial Welding?

    A

    The best industrial welding fume extractor depends on the welding process, number of welding stations, fume generation rate, extraction method, required airflow, filtration requirements, duty cycle, and workshop layout. Mobile extractors are suitable for flexible localized applications, while centralized systems may be more appropriate for multiple fixed welding stations.

  • Q What Should I Consider When Choosing a Welding Fume Extractor?

    A

    When choosing a welding fume extractor, consider airflow, negative pressure, filtration performance, filter area, extraction distance, welding process, number of welding stations, contaminant characteristics, noise level, maintenance requirements, power supply, mobility, and installation environment.

  • Q What Is a Portable Welding Fume Extractor?

    A

    A portable welding fume extractor is a mobile filtration unit designed to capture and filter welding fumes at individual workstations or temporary welding areas. Its mobility makes it useful for workshops where welding locations change frequently or where permanent extraction infrastructure is impractical.

  • Q How Do You Maintain a Welding Fume Extractor?

    A

    Regular maintenance should include checking filters, hoses, extraction arms, seals, fans, electrical components, airflow and overall system condition. Filters should be serviced according to manufacturer recommendations, while the complete local exhaust ventilation system should be inspected and tested according to applicable workplace requirements.

  • Q How Often Should a Welding Fume Extractor Filter Be Replaced?

    A

    Filter replacement depends on welding hours, fume loading, filter type, extraction airflow, contaminant concentration, and the manufacturer's maintenance recommendations. A filter should be inspected regularly and replaced when performance decreases, pressure drop reaches the specified limit, or the manufacturer's service criteria indicate replacement is necessary.

  • Q Should You Use a Welding Fume Extractor Outdoors?

    A

    A welding fume extractor may be useful for outdoor or semi-outdoor welding when source capture is practical and the risk assessment indicates a need for additional control. The suitability depends on the application, power availability, environmental conditions and extraction configuration.

  • Q How Can Manufacturers Create a Cleaner Welding Environment?

    A

    Manufacturers can create a cleaner welding environment by combining low-fume processes, robotic welding, local exhaust ventilation, welding fume extraction guns, industrial fume extractors, adequate general ventilation, regular maintenance, worker training, exposure assessment, and continuous improvement of welding processes.

  • Q Why does my MIG gun overheat?

    A
    A MIG gun overheats when it is operated beyond its rated duty cycle or amperage, has loose consumable connections, or has a damaged/undersized cable. High resistance from a hand-tightened contact tip also generates heat. Use a gun rated for your amperage, tighten consumables properly, stay within the duty cycle, and inspect the cable for damage.
     
  • Q When should I replace my MIG gun liner?

    A
    Replace the liner when wire feeding becomes rough despite correct tension, when you see wire shavings or debris, or when switching to a different wire size or type. A dirty or worn liner is a leading cause of feeding problems and birdnesting. Blow it out regularly with clean compressed air and replace it before it causes downtime.

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E-mail: Sales1@czinwelt.com
Whatsapp: +86-18112882579
Address: D819 Creative Industry Park, 
Changzhou, Jiangsu, China

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