BSL rebranded logo in white
Get a Free Quote

UK-Manufactured · ISO 9001:2015 Certified QMS

Welding Gas Mixing
Experts. Est. 1990.

Quality, made-to-order gas mixers and gas control systems — designed and built at our Rochester, Kent headquarters. Trusted by world-leading industrial gas suppliers across 75+ countries.
34+
years of gas mixing
expertise
500k+
BSL gas mixing
installations worldwide
75+
countries
supplied

Request a Free Quote

Our engineers respond within 1 working day


    34+

    years of gas mixing expertise

    500k+

    BSL gas mixing installations worldwide

    75+

    countries supplied

    ISO 9001:2015 Certified QMS (FM 46063)

    Made in Britain · Kent, UK

    Electricity-free, no buffer tanks required

    30+ years welding industry experience

    5-star customer support

    Industrial Applications

    What makes a BSL gas mixer so useful for welding?

    From on-site welding and cutting to high-flow, low-pressure applications and robotic welding, the list of where gas mixers can be used in an industrial setting is almost infinite. Here are the key applications:

    MIG / Gas Metal Arc Welding (GMAW)

    Gas mixers blend argon (Ar) with CO₂ or O₂ for improved arc stability, deeper penetration and superior weld appearance.

    Ar / CO2 · Ar / O2

    Flux-Cored Arc Welding (FCAW)

    Ar/CO₂ mixtures shield the weld pool and stabilise the arc, enhancing weld properties and significantly reducing spatter.

    Ar / CO2

    Plasma Arc Welding (PAW)

    Gas mixtures with argon, hydrogen or helium stabilise the plasma arc for precision welding of thin materials and exotic alloys.

    Ar / H2 · Ar / He

    Three-Part Tri-Mix Blending

    BSL three-part mixers precisely replicate branded cylinder tri-mixes — such as Ar/CO₂/O₂ or Ar/CO₂/He — allowing customers to match existing welding procedures exactly. No requalification of weld specs, no resistance to change. A straight swap from premixed cylinders with minimal disruption.

    Ar / CO2 / O2 · Ar / CO2 / He

    ~

    Robotic & Automated Welding

    On-site blending systems deliver consistent, precision shielding gas mixtures direct to robotic welding cells — reducing cylinder changeovers and downtime.

    Ar / CO2 · Tri-mix

    Heat Treatment & Metalworking

    Controlled gas atmospheres for annealing, carburising and nitriding processes — enhancing metal properties with precise composition control.

    N2 / H2 · Endogas

    Products

    Our Products for Welding & Manufacturing

    Reliable, high-quality gas mixing valves and panels manufactured at our Kent, UK headquarters — engineer-designed solutions for every welding application.
    High-Flow System

    CF5000 Gas Mixing System

    Designed specifically for high-volume welding operations requiring large, continuous gas flows under low-pressure conditions.

    Flow range: Up to 200 Nm³/hr · Low-pressure operation

    View product →
    High-Flow Panel

    GasMix FW Panel

    Heavy-duty gas mixing panel for industrial welding environments requiring consistent, accurate shielding gas blends at volume.

    Flow range: 25 – 100 Nm³/hr

    View product →
    Large-Scale Panel

    GasMix FW 5 & 6 Panel

    For large-scale welding facilities with high gas demand — delivers consistent mix ratios across multiple welding stations simultaneously.

    Flow range: From 100 Nm³/hr and above

    View product →

    Interested in on-site welding gas blending?

    Tell us about your welding application and one of our engineers will come back to you within 1 working day with a tailored, no-obligation quotation.
    Electricity-free — no buffer tanks required
    Eliminate premixed cylinder costs & handling
    ISO 9001:2015 certified quality manufacturing
    Solutions for every welding process & flow rate

    Get a Free Quote

    No obligation — response within 1 working day


      Easy Installation, Precise Blends

      Why switch to on-site gas blending?

      BSL’s on-site gas blending equipment saves on operational costs without compromising on process quality or flexibility — reducing reliance on expensive premixed cylinders.

      Significant Cost Savings

      Blending bulk, mini-bulk or micro-bulk gases on-site leads to significant savings versus premixed cylinder supply, reducing deliveries, inventory handling and associated paperwork.
      }

      Shorter Changeover Times

      Eliminate the downtime associated with cylinder changeovers. On-site blending provides a continuous, uninterrupted shielding gas supply to your welding stations.

      Freed-Up Floor Space

      Reduce cylinder storage requirements on the shop floor. On-site blending from bulk supply means fewer cylinders to store, handle and manage.

      Reduced Safety Risks

      Fewer high-pressure cylinders on-site means reduced risk associated with cylinder storage, handling and transportation — improving your overall site safety profile.

      Electricity-Free Operation

      Our gas mixing panels are electricity-free and don’t require buffer tanks — designed to operate flawlessly in any production environment, 24/7.
      P

      Precise Blend Accuracy

      Over 30 years of accurate, hard-wearing gas mixing equipment. Consistent mix ratios throughout production runs ensures repeatable, high-quality welds.

      What we do

      Our Services

      From supply of a single gas mixing valve to a complete bespoke welding gas panel, BSL designs, manufactures and supports every stage of your solution.

      Gas Mixing Equipment

      Equipment Refurbishment

      Equipment Calibration

      Equipment Training Days

      Rent-A-Panel

      Bespoke Design

      Industrial Applications

      Frequently Asked Questions

      Common questions from welding and manufacturing customers about BSL gas mixing equipment.

      How can I maintain my 24/7 gas mixing process plant?

      Our gas mixing equipment and gas analysers are designed to be low maintenance and durable, with very few moving or wearing parts. The electricity-free design means minimal failure points, and our calibration and servicing packages ensure continuous, reliable operation. Read our full guide →

      How much gas will I need for my new welding plant?

      Gas requirements depend on your welding process, number of stations, duty cycle and flow rates per torch. Our engineers can help you calculate usage based on your specific setup and advise on the right mixing system. See our guidance →

      How can I spot a leak in my gas distribution pipework?

      Early detection of leaks is critical for safety and efficiency. Key indicators include unexplained gas consumption increases, pressure drops, and hissing sounds. Our help centre covers simple checks, safety measures, and methods to locate and repair leaks effectively. Read our guide →

      Can BSL supply gas mixers for robotic welding cells?

      Yes — BSL supplies high-flow mixing panels specifically designed for robotic and automated welding environments. Our systems deliver consistent shielding gas blends across multiple welding heads simultaneously, including the CF5000 system for flows up to 200 Nm³/hr under low-pressure conditions.

      Don’t see your application listed?

      We’ll build a bespoke solution for you. Not everything BSL does is listed on our website — our engineers have decades of experience designing custom gas mixing solutions for unusual or complex welding applications. Tell us about your project and we’ll come back with a recommendation.

      Our Guarantee

      Why Choose BSL Gas Technologies?

      Six commitments that have underpinned everything we do since 1990.

      Made in Britain

      All products designed, manufactured, stocked and shipped from our headquarters in Kent, UK.

      ISO 9001:2015 Certified QMS

      Consistent, audited product quality on every order — FM 46063.

      5-Star Support

      Dedicated support team for technical enquiries, troubleshooting and after-sales assistance.

      Global Distribution

      Shipped and supported in 75+ countries through our global distributor network.

      Bespoke Solutions

      Every system built to order and tailored to your exact process and flow requirements.

      Top-Quality Components

      Only the highest quality components — inspected, tested and stocked from our Kent stores.

      Trusted by leading UK & international organisations

      World-leading industrial gas suppliersMajor UK manufacturing groupsStructural steel fabricatorsRobotic welding integratorsAerospace sub-contractorsAutomotive manufacturers

      How it works

      From Enquiry to Delivery

      A clear, no-obligation process built around your welding operation’s timeline and technical requirements.

      1

      Tell us your project

      Submit your enquiry with welding process, gas types, flow rates and number of stations. No obligation.

      2

      Engineering review

      A BSL engineer assesses your needs and recommends the right mixing system within 1 working day.

      3

      Quotation & spec

      Receive a clear, fixed-price quote with full product specification, lead time and documentation.

      4

      Manufacture & delivery

      Your system is built to order at our Kent facility, tested and shipped directly to your site.

      Ready to discuss your welding gas mixing requirements?

      Send us your enquiry today and a BSL engineer will respond within 1 working day with expert guidance and a no-obligation quotation tailored to your welding operation.
      34+ years of gas mixing expertise
      500,000+ installations worldwide
      ISO 9001:2015 certified quality
      Free technical guidance on every project

      Get a Free Quote

      No obligation — response within 1 working day