QIDI Max4 bimetal nozzles 0.4 mm (2 pcs)

Original set of two bimetal nozzles for the professional 3D printer QIDI Max4. The nozzles are designed specifically for the high-speed CoreXY Max4 system and follow the design of the multi-material hotend with ceramic ring heating.

Construction and material

The bimetal nozzle combines a copper / copper alloy base for perfect heat transfer and a hardened steel tip for maximum lifespan:

• Copper alloy body – high thermal conductivity, fast heating, stable temperature profile at high flow rates.
• Hardened steel tip – significantly higher wear resistance when printing abrasive filaments (CF/GF, filled materials).
• Surface treatment – facilitates material flow and reduces the adhesion of molten plastic to the nozzle surface.

The 0.4 mm nozzle size is the ideal universal diameter for everyday printing – it combines good printing speed and high surface detail. This set contains 2 pieces, so you always have a replacement at hand.

Compatibility

• Designed for: QIDI Max4
• Hotend type: original Max4 bimetal hotend with ceramic ring heating (multi‑metal)
• Filament diameter: 1.75 mm (Max4 standard)

The nozzles are designed specifically for the Max4 – the geometry and length match the original hotend, so we do not recommend swapping them with nozzles intended for other QIDI models (Q2, Plus4, X‑Max 3, etc.).

Features and benefits

• Original QIDI accessory – guaranteed compatibility and reliability on the Max4 printer.
• Bimetal construction – copper body + hardened steel tip for the optimal combination of thermal conductivity and durability.
• 0.4 mm diameter – universal nozzle for most printing tasks, high quality of detail.
• High-temperature use – designed to work within the Max4 hotend temperature range (up to approx. 370 °C according to printer specification).
• Resistance to abrasive materials – suitable for printing carbon or glass filled filaments as well as technical plastics.
• Set of 2 pcs – practical spare for quick nozzle changes without operational delays.

Recommended use

Max4 bimetal nozzles are suitable for printing a wide range of materials supported by the QIDI Max4 printer:

• Standard materials: PLA, PETG, ABS, ASA, TPU
• Technical and composite materials: PA, PC, CF/GF composites (PLA‑CF, PETG‑CF, ASA‑CF, PA‑CF, PA‑GF, etc.)

For abrasive filaments (carbon, glass fibers, filled polymers), the bimetal nozzle wears out significantly less than a copper or brass nozzle, thereby maintaining diameter accuracy and detail quality even after long-term use.

Installation and maintenance

1. Heat the hotend to the working temperature of the material used (usually 220–260 °C).
2. Carefully unscrew the old nozzle using a suitable wrench.
3. Screw in the new bimetal nozzle while hot – tighten with care to avoid damaging the thread.
4. After installation, we recommend performing a re-calibration of the first layer height.

For a longer nozzle lifespan:

• Regularly clean it from material residues (e.g., with a brass brush at a higher temperature).
• Do not use hard steel tools directly in the nozzle orifice – there is a risk of damage.

Package contents

• 2× bimetal nozzle QIDI Max4, diameter 0.4 mm

This set is ideal as a spare part for QIDI Max4 users who want to reliably print both standard and demanding abrasive materials at high speeds without compromising on print quality.

Key features:

• Original QIDI bimetal nozzles for the Max4 printer
• 0.4 mm diameter – universal choice for detailed and fast printing
• Bimetal construction: copper alloy + hardened steel tip
• High wear resistance when printing abrasive filaments
• Designed for high-speed printing on the QIDI Max4 CoreXY platform
• Suitable for a wide range of materials including composites (CF/GF)
• Set of 2 pieces – practical spare for quick nozzle replacement