GT8 Extruder 0.3-0.5mm Nozzle All Metal J-Head Hotend

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GT8 Extruder 0.3-0.5mm Nozzle All Metal J-Head Hotend

Available options: Nozzle 0.3mm Filament 1.75mm/Filament 3mm Nozzle 0.3mm/Nozzle 0.35mm Filament 1.75mm/Filament 3mm Nozzle 0.35mm/Filament 1.75mm Nozzle 0.4mm/Filament 3mm Nozzle 0.4mm/Filament 1.75mm Nozzle 0.5mm/Filament 3mm Nozzle 0.5mm/
**NOTE: Please let us know which option you want to receive via the message on checkout step (if there are multi options)

Assembled GT8 Extruder 0.3-0.5mm Nozzle All Metal J-Head Hotend For 3D Printer


Geeetech GT8 extruder adopts high-quality aluminum alloy heat radiator and brass nozzle, with stainless steel pipe as feeding pipe, which ensures good heat insulation effect and prevents blockage. Besides, its surface is covered with anodic oxide coating, which can resist oxidation corrosion and increase nozzle hardness, thus ensuring better heat insulation, stronger corrosion resistance as well as finer and more stable printing.    


Material: All metal
Weight: 515g
Outline dimensions: 88 x 42 x 119 mm (L / W / H)
Nozzle diameter: 0.3mm, 0.35mm, 0.4mm, 0.5mm optional
Nozzle temperature: 180°C - 260°C
Suitable for 1.75 / 3mm PLA & ABS (not included)
Printing resolution: 0.1mm
Molding form: FDM
Printing thickness: 0.1mm-0.3mm
Flow rate in nozzle: about 24cc/h
Movement speed: 50cc
Recommended input voltage: 12V
Stepper motor operating voltage: 12V
Cooling fan operating voltage: 12V
Heating voltage of extruding head: 12V
Thermistor: 100K 1% high-precision NTC thermistor
1. All Metal J-head
Enables working with Polycarbonate
Up to 300 degrees Celsius
Tested with PLA, ABS, polycarbonate, nylon and PVA    

2. 42 Stepper motor
Dimension: 42.3 x 42.3 x 40 mm (L / W / H)
2 Phase
Step Angle: 1.8±5% degree
Voltage: 12V DC
Current: 12A / phase
Holding torque: Min.
Phase Resistance: 10±10% Ω(Phase)
Phase Inductance: 20±20%mH(Phase)
Rotor torque:^2
Braking torque: MAX.
Insulation class: B(130)

3. Cooling fan
Dimensions: 40 x 40 mm (3Pin)
Voltage: 12V DC
Current: 0.11A
Small size full of energy to make your printer pretty cool.
4. Cartridge heater
Material: Stainless Steel, PVC, Nylon
Voltage: 12V
Power: 30w
Wire Length : 1m
Heater size: 6 x 15mm (D x L)
Package included:
1 x Geeetech GT8 short distance extruder

    • Brand TechDaddy
    • Mfg Part # TDBG950337
Payment Methods
Shipping USPS, $1.99
Shipping Policy

We will arrange shipping for you within 3 days after payment cleared except the holidays.
- Estimated delivery time from date of shipment is 12-21 working days from our warehouse in China, over 80% of our customers receive the products within 20 working days (please note that these are estimates; post office and customs delays can occur, if so, please check the information at your local post office, if you still can not get the package, please contact us.
-We ship items to Worldwide.

Return/Exchange Policy

We accept return in 30 days

Other Policies


If you send email to us, In our working hours will be resumed within 24 hours.
If you we are not satisfied with the product or service, please contact me and don't give us negative or natural feedback. We must give you a satisfactory solution. Thank you!

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