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Bambu Lab Hotend Series [For H3C]

Bambu Lab
¥6,150 JPY

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Bambu Lab | H3C Accessories

Bambu Lab H3C Hotend Series

With hardened steel, high-flow, and 2.85 mm filament compatibility, these hotends meet a wide range of needs, including abrasive filaments, high-efficiency printing, and flexible materials.

Choosing the right H3C-specific hotend for your materials and applications can improve printing efficiency and operational flexibility.

Hardened Steel Hotend Abrasive filaments | Carbon fiber | Glow-in-the-dark materials
High-Flow Hotend High-speed printing | High-infill models | Reduced printing time
2.85 mm Filament-Compatible Hotend FlexFeed | Flexible TPU | Large-diameter filament

Hardened Steel Hotend | H3C Exclusive

Designed for abrasive filaments, it improves nozzle wear resistance and long-term stability.

Designed for Abrasive Filaments

Abrasive materials such as carbon fiber, glow-in-the-dark materials, and metal-filled filaments can accelerate wear on standard brass nozzles and affect the dimensional accuracy of printed parts.

The Bambu Lab H3C Hardened Steel Hotend uses hardened steel with a hardness of over HRC 55. In addition to applying a hardened coating to the surface, the entire hotend is designed to be hardened.

It reduces wear from abrasive materials, maintains the nozzle shape, and helps extend its service life.

Example of using abrasive filament with the Bambu Lab H3C Hardened Steel Hotend
Structure and wear-resistant design of the Bambu Lab H3C hardened steel nozzle

Quickly Replace the Hotend | Removable with 3 Screws

The H3C hotend features an easy-to-replace design that can be swapped by simply operating 3 mounting screws.

According to the original product introduction, the replacement can be completed in under 1 minute, helping to reduce downtime during maintenance and material changes.

When printing abrasive materials, you can switch to the hardened steel hotend and then switch back to another hotend as needed after the job is finished.

Comparison by Nozzle Diameter

The suitable application varies depending on the nozzle diameter. Smaller nozzles are suitable for detailed models, while larger nozzles are suitable for large parts and applications requiring higher material extrusion volumes.

Comparison Item 0.2 mm 0.4 mm 0.6 mm 0.8 mm
Main Applications Detailed models where resolution is important Excellent balance of speed and quality, ideal for everyday use High extrusion volume, ideal for large parts High extrusion volume, ideal for large structural parts
Typical Use Cases Miniatures, detailed logos, text, and molds Toys, mechanical parts, and decorative items Large structural parts, household functional parts, and engineering parts Large structural parts, industrial parts, and high-strength models
Main Features Excellent detail reproduction, but print times are usually longer Highly versatile, balancing quality and efficiency Improves printing efficiency, but detail is relatively reduced Suitable for large prints, but detail is relatively reduced

* This table compares applications by nozzle diameter. It does not indicate that hardened steel hotends for H3C are available in all sizes listed above. Please check the product options for actual sales specifications.

Comparison of print results by Bambu Lab nozzle diameter
Comparison of Bambu Lab 0.2, 0.4, 0.6, and 0.8 mm nozzle applications

Hardened Steel Hotend | Package Contents

  • Hardened Steel Hotend × 1
  • M2 × 5 Screws × 3
  • Toolhead motor lock release socket × 1

High-Flow Hotend | H3C Exclusive

Optimizes melting efficiency and material extrusion volume to meet the needs of large models, high infill rates, and high-speed printing.

Reduces print time by up to 30%

The Bambu Lab High-Flow Hotend features an optimized melting zone design. Under specified test conditions, the maximum volumetric flow rate is improved by up to 62.5%, reducing print time by up to 30%.

Larger models and models with high infill rates are expected to save more printing time. Actual improvements vary depending on the material, model, and print settings.

Maximum Volumetric Flow Rate Comparison

The following data compares the standard flow hotend and high-flow hotend listed in the original product documentation. All units are in mm³/s (cubic millimeters per second).

Hotend Specifications PLA Basic PLA Matte PETG HF
Standard Flow 0.4 mm 24 mm³/s 28 mm³/s 24 mm³/s
High-Flow 0.4 mm 40 mm³/s 48 mm³/s 32 mm³/s
High-Flow 0.6 mm 40 mm³/s 40 mm³/s 40 mm³/s
High-Flow 0.8 mm 40 mm³/s 40 mm³/s 40 mm³/s

* This data was organized based on the provided original documentation, and the volumetric flow rate units have been standardized and corrected to mm³/s. Actual performance varies depending on the material, temperature, model, and print settings.

Melting and extrusion performance of the Bambu Lab H3C High-Flow Hotend
Performance comparison between the Bambu Lab H3C standard flow hotend and high-flow hotend

Combines High-Speed Printing with Sharp Details

The high-flow hotend focuses not only on material extrusion speed but also on extrusion stability.

Efficient and stable melting and extrusion help reduce under-extrusion, surface roughness, and loss of detail during high-speed printing, contributing to improved edges, textures, and surface quality.

Details of high-speed printing with the Bambu Lab H3C High-Flow Hotend
Surface quality of printed parts with the Bambu Lab H3C High-Flow Hotend

Test Conditions:

  • Volumetric flow rate test: Printed a single-walled cylinder with a diameter of 240 mm using ABS material. Layer height 0.2 mm, wall thickness 1.0 mm, nozzle temperature 280°C, with spiral base mode enabled.
  • Print time test: Printed a 300 × 300 × 300 mm cube using PLA Basic material with 15% infill.

High-Flow Hotend | Package Contents

  • High-Flow Hotend × 1
  • M2 × 5 Screws × 3
  • Toolhead motor lock release socket × 1

2.85 mm Filament-Compatible Hotend | H3C Exclusive

When combined with the FlexFeed system, it supports printing flexible TPU and filaments of different diameters.

Supports 2.85 mm Filament and FlexFeed System

Flexible TPU can bend or break due to its softness in conventional extrusion systems, so print speeds usually need to be reduced to maintain a stable supply.

The FlexFeed system supports two filament diameters, 1.75 mm and 2.85 mm, and can be switched between them.

When combined with dedicated 2.85 mm TPU filament, it improves the supply of flexible filament within the extrusion path and increases melting volume and extrusion capability.

Supports Softness of 75A Hardness, Up to 3x Print Speed

According to the original product introduction, combining FlexFeed with dedicated 2.85 mm TPU filament allows for printing TPU with a hardness of 75A and can achieve up to 3x the speed of conventional printers under specific conditions.

Actual print speed and stability vary depending on the material properties of the TPU, hotend configuration, and print settings.

Bambu Lab H3C 2.85 mm Filament-Compatible Hotend and FlexFeed System
Flexible TPU Printing Applications with Bambu Lab H3C FlexFeed

2.85 mm Filament-Compatible Hotend | Package Contents

  • 2.85 mm Filament-Compatible Hotend × 1
  • M2 × 5 Screws × 3
  • Toolhead motor lock release socket × 1

Filament Compatibility and Hotend Installation Guide

Before purchasing, please check the H3C hotend specifications, nozzle diameter, and compatibility with the filament you plan to use. For hotend installation and replacement instructions, please refer to the official Bambu Lab Wiki.

View Filament Compatibility Guide View H3C Hotend Installation Guide