0.4mm E3D Vanadium Nozzle for 1.75mm - Slice Engineering - Cover Expand

0.4mm E3D Vanadium Nozzle for 1.75mm - Slice Engineering

Slice Engineering Slice Engineering



The Vanadium Nozzle takes durability to the Extreme, with a specialised plastic-repellent coating & Lifetime Warranty against abrasion in 3D Printing!

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Although we all love 3D Printing in various colours and with unique Semi-Exotic Filaments like Marble and Twinkling polymers, one thing that we all can’t help but hate is nozzle-wear, especially since it sneaks up over time and slowly reduces the quality of prints at an almost unnoticeable rate. And of course, while we all know that nozzle-wear is particularly prevalent with abrasive materials like Glow-in-the-Dark Filaments or the infamously abrasive carbon fiber, the truth is that it happens almost all the time, whether printing in PLA Filaments or any other. This is because typical nozzle materials are made for low cost with high effect, but over a long lifespan of heating up, cooling down and having hundreds of meters of 3D Filaments mechanically forced through them, it makes sense that materials like copper, brass and even some steels would wear down over time.

This is what makes these incredibly strong and profoundly durable Vanadium Nozzles from Slice Engineering such an awesome upgrade for a good range of different 3D Printers. Based on the classic E3D design featured on many popular hotend assemblies, with The Mosquito Hotend being included in this list, this nozzle is more than just a good looking “Hunk” of metal, and is crafted from one of the toughest materials that we’ve ever seen nozzle being made of. In fact, aside from the famous Olsson Ruby Nozzle, which really pushed hardness (and price) to the extreme, these may just be the hardest, strongest and most abrasion-resistant nozzles that 3D Printing has ever seen.


What Makes Slice Engineering Vanadium Nozzles So Damn Durable?

Compared to the impressive Plated Brass Nozzles and even the rugged A2 Tool Steel Nozzles, these Vanadium Nozzles are really the next step up in durability, and are basically made from the material that is used to make A2 Tool Steel Nozzles. In fact, these are so durable that Slice Engineering, the fantastic inventors of the Mosquito Hotend and other very fancy upgrades, have given these nozzles a Lifetime Warranty against abrasion, regardless of what filaments you’re printing or how hot you have to get them. This is truly a confident way of putting their money where their mouth is, but this confidence is certainly not unfounded, as after testing these nozzles on a variety of 3D Printers in our workshop, we’ve been blown away at just how harshly we can treat these nozzles without even causing a scratch.

If you hate worn 3D Printer Nozzles and frustrating clogs from bits of plastic left in your nozzle from past prints, then these Slice Engineering Vanadium Nozzles are a genuine investment for your workshop, and may just be the last nozzle you ever have to buy. And of course, if you love the idea of “the indestructible nozzle”, but are looking for different sizes, don’t worry, because we have stock all different output diameters, so be sure to check out the Vanadium Nozzles Collection to see more of these.

Note: This is a Slice Engineering Original nozzle, supplied directly by the experts who invented the amazing Mosquito Hotend, and they are so confident in the incredible durability of their Vanadium Nozzles that they include a Lifetime Warranty against abrasion.


0.4mm E3D Vanadium Nozzle  -  Technical Specifications:

  • Supplier

Slice Engineering                                                      

  • Base Material

– Vanadium

  • Base Material Hardness Rating

– 65 Rockwell C / Vickers HV910

  • Plating Material

– Polymer Repellent Coating

  • Filament Compatibility

– 1.75mm

  • Output Diameter

– 0.4mm

  • Thread Diameter

– M6

  • Hotend Compatibility

The Mosquito Hotend

E3D V5 1.75mm / E3D V6 1.75mm


Quick Guide to Changing your 0.4mm E3D Vanadium Nozzle:

When swapping out 3D Printer Nozzles from other components, we recommend utilising the hot tightening technique for optimal thermal coupling. To do this, simply follow these easy steps, while being careful not to burn yourself of course.

  • Unscrew the heatbreak from the heatsink by about half a turn, to be sure you are not tightening against the heatbreak in later stages.
  • Heat up your hotend to 285°C, but do not overshoot as you risk damaging your thermistor.
  • Remove the existing nozzle from the heater block and insert the new nozzle.
  • While firmly gripping the heater block, slowly tighten the nozzle. Be careful, however, that you not apply any torque through the heatbreak, as they are fragile and relatively easy to break when loose.
  • Turn off the heating unit and allow the hot side to cool.
  • Finally, once the nozzle is installed and cooled down, tighten the heatbreak back into the heatsink and ensure that there are no loose parts.

The reason for this is that the aluminium heater blocks used have a higher coefficient of thermal expansion than the brass and steel used in the nozzles and heat breaks. This results in a small gap being created between the nozzle and the break inside the block when the hot end is at temperature, but this only happens if the nozzle has been tightened while cold.


The following is a great instructional video on how to change your nozzle without damaging your heatsink.

Note: This guide does is not needed for the Mosquito Hotend, which is specially built to make nozzle changes as easy as possible. For more information regarding the Mosquito Hotend nozzle change, please refer to the video at the bottom of The Mosquito Hotend Product Page.


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0.4mm E3D Vanadium Nozzle for 1.75mm - Slice Engineering

0.4mm E3D Vanadium Nozzle for 1.75mm - Slice Engineering