YINGHUA Bimetal Heatbreak Heat Block for Lab X1 (Package 4)

Compatible upgrade for Lab X1 hot-ends

This bimetal heat-break and heat-block assembly is engineered as a direct replacement for Lab X1 series printers. The hardened-steel nozzle resists abrasive filaments and maintains dimensional accuracy over long print runs. It serves hobbyists, design studios and educational labs that need reliable extrusion without frequent nozzle changes. The kit delivers a complete hot-end core in a single package.

All-metal thermal transition reduces heat creep

The bimetal construction creates a sharp thermal gradient between the cold zone and melt zone, limiting heat creep during extended prints. Metal-on-metal seating eliminates the PTFE tube degradation that causes stringing and clogs at higher temperatures. Stable thermal performance keeps filament flow consistent from the first layer to the last. No active cooling changes are required beyond the printer’s stock fan.

Drops into existing Lab X1 extruder housings

The assembly matches the stock mounting pattern and heater-cartridge bore, so no bracket redesign or firmware recompile is needed. It reuses the original thermistor, heater cartridge and part-cooling duct, preserving the printer’s wiring loom and Bowden coupler. Swapping the unit takes minutes with basic hand tools. The hardened nozzle also frees users from frequent brass-nozzle replacements when printing carbon-fibre or glow-in-the-dark materials.