What the Micro Swiss CM2 High Flow Volcano Nozzle Does

The Micro Swiss CM2™ High Flow (Volcano) 0.4mm nozzle is a hardened tool steel nozzle for 1.75mm filament systems that use a Volcano-style hotend format. It is built to increase melt throughput, helping compatible printers handle higher flow rates than a standard nozzle setup.

The 0.4mm opening keeps a common nozzle size for general-purpose printing while the extended Volcano-style geometry supports a longer melt path. That makes the nozzle suitable for users who want to push print speed, larger layer heights, or higher extrusion rates without moving to a larger nozzle diameter.

Key Features and Benefits

• High-flow Volcano-style design: Supports greater melt capacity for faster printing and higher volumetric extrusion on compatible hotends.
• 0.4mm nozzle diameter: Maintains a versatile size for everyday printing, balancing detail and throughput.
• For 1.75mm filament: Built for the most common desktop filament size used on hobby, prosumer, and small production printers.
• CM2™ hardened tool steel construction: Offers improved wear resistance compared with standard brass nozzles, which is useful when printing more abrasive materials.
• Volcano-format nozzle length: Intended for hotends that rely on the longer Volcano nozzle standard rather than a standard V6-style nozzle.

Where a High-Flow 0.4mm Nozzle Makes Sense

This Micro Swiss nozzle fits users who want faster functional prototypes, larger parts, or stronger layer bonding through higher extrusion output on a compatible setup. It is also a practical choice for print farms and frequent users who want a 0.4mm nozzle size with the added durability of hardened steel.

A Volcano-style high-flow nozzle is especially useful when printing parts that benefit from increased throughput, such as enclosures, brackets, jigs, fixtures, cosplay components, and larger workshop prints. The hardened CM2 construction also makes the nozzle a sensible option for materials that would wear softer nozzles more quickly.