4302082 - Harris US-S100 Argon/Hydrogen Mechanical Gas Mixer 3000 SCFH

Take Control of Your Shielding Gas Mix

For professional welders and fabricators, the quality of the shielding gas blend can make or break a weld, especially when working with specialized processes like TIG welding on stainless steel or plasma cutting. The Harris US-S100 Two-Gas Blender puts the control back in your hands, allowing you to create the perfect Argon/Hydrogen mix right in your shop. Instead of stocking multiple cylinders of different pre-mixed ratios—or settling for a "close enough" blend—you can dial in the exact mixture you need with the turn of a single knob.

The US-S100 is a workhorse designed for the shop environment. It is completely mechanical, meaning you don't need to worry about finding a power outlet or dealing with sensitive electronics that can fail in dusty or dirty environments. Just mount it to the wall, connect your pure Argon and Hydrogen supplies, and you are ready to go. The unit provides a massive flow rate of up to 3000 SCFH, which is more than enough to supply a large shop with multiple welders running simultaneously. Whether you need a hydrogen-heavy mix for a hot plasma cut or a precise trace amount for specialized TIG applications, this blender delivers consistent results.

Simple, Reliable Operation

One of the biggest advantages of the US-S100 is its simplicity. It does not require a receiver tank to mix the gases; the blending happens instantly and accurately within the unit itself. The accuracy is rated at +/- 2%, ensuring that the arc characteristics remain stable and predictable. This consistency is critical for automated welding or high-precision manual work where porosity or lack of fusion cannot be tolerated.

By switching to a blending system, you also save money. Pure gases are generally cheaper than specialty pre-mixed cylinders. Over time, the US-S100 pays for itself by lowering your consumable costs and reducing the number of cylinder change-outs required. It connects easily with standard NPT fittings, making it a straightforward upgrade for any serious fabrication workshop looking to improve efficiency and weld quality.