Extruder system
E3D Volcano hotend: temperature, nozzle and flow data
E3D's Volcano: 300 °C, upgradable to 500 °C, its own Volcano nozzle, 1.75 or 2.85 mm filament, and CNC Kitchen's flow number as one setup.
Also listed as Volcano
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Short answer
E3D rates the Volcano at 300 °C, upgradable to 500 °C, and says it uses the E3D Volcano nozzle. E3D lists a 30 W nominal heater at 12 or 24 V and 1.75 or 2.85 mm filament. In one CNC Kitchen test with 0.6 mm nozzles, a Volcano reached about 30 mm³/s at roughly 5% under-extrusion.
Key facts
- Type
- Hotend[1]
- Filament size
- 1.75 or 2.85 mm[1]
- Gear ratio
- Not confirmed
- Published E-steps
- Not confirmed
- Drive gears
- Not confirmed
- Max temperature
- 300 °C, upgradable to 500 °C[1]
- Nozzle standard
- E3D Volcano nozzle[1][2]Bondtech makes CHT nozzles to the Volcano standard, which it dimensions as M6×1×14.5×21.
- Nozzle change
- Not confirmed
- Heater
- 30 W nominal, 12 or 24 V[1]E3D's nominal figure. Match any heater to your printer's supply and controller per E3D's documentation; we give no wiring steps.
- Printers the maker names
- Not confirmed
- Maker flow figure
- Not confirmed
- Outside measurement
- CNC Kitchen, 2021, E3D Hemera with 0.6 mm nozzles: Volcano about 30 mm³/s at roughly 5% under-extrusion (standard V6 about 15, Bondtech CHT about 40)[3]One setup, PLA, setpoint not reported; not a rated limit.
- Where the maker sells
- Not confirmedE3D's reseller pages returned errors on 2026-10-08.
- Not confirmed
- Not confirmedE3D's Volcano support page states neither.
Watch out for
- The Volcano uses its own Volcano nozzle. E3D's support page does not say whether V6 nozzles fit a Volcano block.
- 500 °C needs E3D's upgrade; the base rating is 300 °C.
- The Volcano heater is listed at 12 or 24 V. A heater must match your printer's supply; ask E3D or a qualified person, not a forum.
What fits
Product details below are the seller's own description unless a source is shown. Pick the variant named for each item.
Volcano nozzle
Bondtech CHT coated brass nozzle for Volcano, 0.8 mm (600‑C‑CHT‑VOL‑175)Choose the 0.8 mm CHT Volcano nozzle (600-C-CHT-VOL-175), not a BiMetal or standard M6 nozzle.
Bondtech lists it for E3D Volcano and other Volcano-type blocks. Bondtech says to change it hot (at least 250 °C) and not over 1.5 N·m.
Questions
How hot can an E3D Volcano go?
E3D gives a maximum rated temperature of 300 °C, upgradable to 500 °C.[1]
Do V6 nozzles fit a Volcano?
E3D says the Volcano uses the E3D Volcano nozzle, and its support page does not say whether V6 nozzles fit. See nozzle standards.[1]
How much more flow does a Volcano give than a V6?
In CNC Kitchen's 2021 test with 0.6 mm nozzles, a Volcano reached about 30 mm³/s and a standard V6 about 15 mm³/s at roughly 5% under-extrusion. One setup, not a universal result.[3]