Trianglelab CHCB-OT Hotend Upgrade Kit 🔥

Higher Flow, Cooler Operation, Easier Maintenance

Product Overview

The CHCB-OT Hotend Kit from Trianglelab is a direct drop-in replacement hotend engineered for improved thermal performance and print quality. Featuring a planar contact heating element and a separated flange design, this hotend reduces heat sink temperature and increases melt flow rate for faster, more reliable printing.

Key Features🔧 Easy Maintenance

Heating element and thermistor are simple to replace compared to the original OT hotend design.

❄️ Cooler Cold-Side Temps

Low thermal conductivity flange keeps the heat sink cooler, reducing thermal creep and clogging risk.

💧 Higher Flow Rate

Increases flow rate by up to 50% when installed on a Creality Sprite Extruder.

🔩 MK8 Nozzle Compatible

Works with widely available MK8 series nozzles, including the included 0.4mm brass nozzle.

Compatibility

Creality K1 / K1 Max • Creality CR-M4 • Ender3 V3 KE • Ender3 V3 SE* • CR-10 Smart Pro • Ender3 S1

*Ender3 V3 SE requires fan duct modification (STL files available separately).

Package Contents

CHCB-OT Hotend x1 • 0.4mm Brass Nozzle x1 • Protective Sock x1
(Some variations include a 4020 blower fan and bracket for CR-10 Smart Pro / Ender3 S1 Element Resistance7.5–9.5 ohmsNominal Power24V, 67W @24°C (61–77W)ThermistorNTC 100K ohms B3950 1%Nozzle IncludedBrass 0.4mmItem TypeJ-Head HotendProduct ImagesFAQIs this a direct replacement for the original hotend?

Yes, it is a drop-in replacement for Creality K1, K1 Max, and CR-M4 printers.

Does it fit the Ender3 V3 SE?

Yes, but a fan duct modification is required. STL files for modification are available.

What thermistor connector pitch does it use?

The thermistor connector uses a 1.25mm pitch for CR-M4 and CR-10 Smart Pro/Ender3 S1 kits.