0.4 mm Hardened Steel Hotend x4, Snapmaker U1

0.4 mm Hardened Steel Hotend x4 – Snapmaker U1

This set of four 0.4 mm hardened steel hotends is a replacement or upgrade solution for your Snapmaker U1 3D printer. Each hotend integrates the nozzle, heating block, and heating element into a single unit, simplifying installation and minimizing points of leakage or thermal variation.

Hardened steel provides significantly higher mechanical and chemical resistance than standard stainless steel, making it particularly suitable for abrasive or filled materials (carbon fiber, glass fiber, or technical composites). This type of hotend expands the range of printable materials while maintaining component durability.

This set of four units is ideal for users operating all four U1 tool heads simultaneously or who prefer to have spare parts available to reduce interruptions during long or intensive print cycles.

Technical features:

• Nozzle diameter: 0.4 mm — good balance between speed and quality
• Material: hardened steel — excellent durability
• Maximum supported temperature: up to 300 °C, compatible with standard U1 profiles
• Set of four identical hotends for multi-tool use or spares

Usage tips:

• Allow the system to cool and disconnect power before handling.
• Adjust print settings (extrusion temperature, speed) according to the material; hardened steel dissipates heat differently than brass or stainless steel.
• For fiber-filled filaments, use moderate speeds and appropriate temperature ramps to avoid premature wear.

This hotend pack is recommended for users who want to maximize the versatility of the Snapmaker U1, especially for functional applications involving more technical or abrasive materials. Purchasing a set of four helps maintain production without relying on frequent spare part deliveries.