Attributes

Brand	-
Category	Root / Office Equipment, Supplies & Services
Origin	-
Compatible Models	Bambu Lab X1, X1-Carbon, P1P, P1S
Nozzle Material	Hardened Steel
Nozzle Diameter	0.4mm (Standard)
Heater Power	40W High-Efficiency Ceramic
Max Temperature	300°C
Thermistor Type	NTC 100K Precision Sensor
Heatbreak Design	Titanium Alloy Bi-Metal
Cooling System	Dual 4010 Turbo Fans
Package Contents	1x Hotend Assembly, 1x Nozzle Wrench, 1x Thermal Paste
Warranty	6 Months Manufacturer Warranty

6 reviews

Anonymous

Mar 27, 2026

Rating: 5/5

Perfect for abrasive filaments

I switched to this hardened steel hotend specifically to print carbon fiber reinforced PLA. The stock brass nozzle wore out in two prints, but this one has been going strong for months with zero degradation in quality.

Anonymous

Mar 23, 2026

Rating: 4/5

Great upgrade, slightly tricky install

The performance is excellent and temperature stability is spot on. Installation took me about 20 minutes as the wiring harness was a bit stiff, but once installed, it works flawlessly on my P1P.

Anonymous

Mar 21, 2026

Rating: 4/5

Solid build quality

Feels very robust compared to the original. The only reason for 4 stars instead of 5 is that the included thermal paste tube was nearly empty, but I had my own anyway.

Anonymous

Mar 04, 2026

Rating: 5/5

Essential for engineering materials

If you plan on printing PETG, ABS, or anything with glass fiber, get this immediately. The heat creep issues I had with the standard unit are completely gone. Highly recommended.

Anonymous

Mar 02, 2026

Rating: 5/5

No more clogs

I was experiencing frequent clogs with metallic PLA. Since installing this Leji assembly, I haven't had a single clog in over 50 hours of printing. Worth every penny.

Anonymous

Mar 01, 2026

Rating: 5/5

Consistent flow rate

Noticed an immediate improvement in layer adhesion and consistency. The upgraded heater block maintains temperature much better during high-speed prints on the X1 Carbon.

5 FAQ

Q: Is this compatible with the Bambu Lab A1 mini?

A: No, this assembly is specifically designed for the X1, X1-Carbon, P1P, and P1S series. The A1 mini uses a different hotend architecture.

Q: Do I need to recalibrate the flow rate after installation?

A: Yes, we highly recommend running the automatic flow rate calibration in the printer settings after replacing the hotend to ensure optimal print quality.

Q: Can this handle printing at 300 degrees continuously?

A: Yes, the components are rated for up to 300°C. However, please ensure your cooling fans are functioning correctly to prevent heat creep when printing at maximum temperatures.

Q: Does this come with a 0.6mm nozzle option?

A: This specific kit comes with a standard 0.4mm hardened steel nozzle. However, the assembly is compatible with other hardened nozzles sold separately if you need a different diameter.

Q: What is the lead time for shipping to the US?

A: Orders shipped to the US typically arrive within 3-5 business days via standard expedited shipping from our local warehouse.

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