
E3D Volcano Hot End Heater Block 20x20mm M6 Thread
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Prices updated: 13 Oct 2026
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About this product
An aluminum heater block for the E3D Volcano hot end system, used in 3D printers to melt filament and push it through the nozzle. It measures 20 mm x 20 mm x 11.6 mm, with an M6 threaded tube hole, a 6 mm heater cartridge hole, and M3 holes for the set screw and thermocouple. The set screw is included.
Specifications
- Material
- Aluminum alloy
- Dimensions
- 20 mm x 20 mm x 11.6 mm
- Threaded tube hole
- M6
- Heater cartridge hole
- 6 mm diameter
- Set screw
- M3 (included)
- Thermocouple hole
- M3
Frequently asked questions
What heater size does it accept?
The heater mounting hole is 6 mm in diameter, so it is designed for 6 mm heater cartridges. Check your heater's diameter and length before ordering or assembling.
Is the set screw included?
Yes. The listing includes an M3 set screw. The thermocouple hole is also M3 and is used to mount the temperature sensor.





