Mellow Phaetus Tungsten Carbide MK8 Nozzle M6 – Ender 3 CR10

Mellow Phaetus Tungsten Carbide MK8 Nozzle – M6 for Ender 3, Ender 5, CR10 & More

Take your 3D printing to the next level with the Mellow Phaetus Tungsten Carbide MK8 Nozzle. Designed and manufactured by Phaetus in collaboration with the Mellow team, this premium M6-threaded nozzle delivers exceptional durability, high-temperature capability, and ultra-low friction — making it the ideal upgrade for Ender 3, Ender 5, Ender 3 V2, Ender 3 S1, Aquila, and CR10 hotend systems. Made in Mainland China.

Key Features

• Super Wear Resistance: Crafted from ultra-high hardness tungsten carbide (hardness >2700Hv, up to 2900Hv), this nozzle maintains nozzle hole and tip geometry through long-term abrasive filament printing — including carbon fiber, glow-in-the-dark, and other filled materials.
• High Temperature Performance: The tungsten carbide and copper alloy construction provides outstanding thermal conductivity with a maximum printing temperature of up to 550°C, supporting a wide range of engineering-grade filaments.
• Stable, Consistent Extrusion: With a tungsten carbide purity of more than 99.98%, the nozzle tip maintains an even temperature during printing — ensuring smooth, stable extrusion and consistent flow rate.
• Faster Print Speeds: Enhanced thermal performance and a unique internal passageway geometry improve inner-hole flow rate, enabling faster printing speeds without compromising print quality.
• Ultra-Low Friction DLC Coating: The nozzle features a hard nickel plating base layer topped with a Diamond-Like Carbon (DLC) coating. With a friction coefficient as low as 0.05, melted filament moves cleanly through the tip — no sticking, no stringing, no residue buildup.

DLC Coating Highlights

• Friction coefficient of only 0.05 — effectively prevents molten plastic from adhering to the nozzle surface
• Coating thickness: 2.0μm — zero impact on dimensional accuracy
• Maintains lubrication and wear resistance up to 300°C
• Coating hardness: HV2200 with strong adhesion
• Chemically stable — non-toxic, non-corrosive, and insoluble in common solvents

Specifications

Compatible Printers

• Ender 3
• Ender 3 V2
• Ender 3 S1
• Ender 5
• Aquila
• CR10 Hotend

Package Contents

• 1 × Tungsten Carbide MK8 Nozzle (M6)

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Frequently Asked Questions

Q: What filament types can I use with the Mellow Phaetus Tungsten Carbide MK8 Nozzle?

A: The tungsten carbide construction makes this nozzle ideal for abrasive filaments that would quickly wear out standard brass nozzles — including carbon fiber-filled (CF), glow-in-the-dark (GITD), metal-filled, wood-filled, and other composite materials. It also handles standard PLA, PETG, ABS, and high-temperature filaments like PC and Nylon with ease, supporting temperatures up to 550°C.

Q: Is this nozzle a direct replacement for my Ender 3 or CR10?

A: Yes. The Mellow Phaetus Tungsten Carbide MK8 Nozzle uses a standard M6 thread and is designed as a direct drop-in replacement for Creality Ender 3, Ender 3 V2, Ender 3 S1, Ender 5, Aquila, and CR10 hotend setups. No modifications are required.

Q: What is DLC coating and why does it matter for 3D printing?

A: DLC stands for Diamond-Like Carbon — an extremely hard, smooth surface coating applied to the nozzle exterior and tip. With a friction coefficient of just 0.05, the DLC coating prevents molten plastic from sticking to the nozzle surface, resulting in cleaner prints, less stringing, and easier maintenance. The 2.0μm coating thickness ensures it does not affect any dimensional accuracy of the nozzle.

Q: How does the Tungsten Carbide MK8 Nozzle compare to a standard brass nozzle?

A: Standard brass nozzles have a hardness of approximately 100–200Hv and wear quickly when printing abrasive materials. This tungsten carbide nozzle reaches hardness exceeding 2700Hv — over 10× harder — ensuring long-lasting performance and consistent hole geometry even after hundreds of printing hours with abrasive filaments.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.