Nozzle Heaters | McMaster-Carr

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10"

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63 Products

Wraparound Heaters for Nozzles


With Mica Insulation	With Mineral Insulation

Often used with extrusion-, injection-, and blow-molding machinery, these heaters clamp around nozzles to keep material warm for consistent discharge. They require a temperature switch or controller (sold separately) to regulate heat output.

Note: The heater must be sized to fit tightly around the barrel to prevent air gaps that lead to inefficient heating and premature failure.

With Mineral Insulation—Heaters with mineral insulation heat up faster than heaters with mica insulation.

					Wire Lead				120V AC, Single Phase			240V AC, Single Phase
	For Nozzle OD	Wd.	Wattage, W	Max. Heat Output, ° F	Lg.	OD	Covering Material	Material	Current, amp		Each	Current, amp		Each
With Mica Insulation



		1"	1"	100	900	12"	0.08"	Fiberglass	430 Stainless Steel	0.8	3594K114	0000000	0.4	3594K115	0000000


		1"	1 1/2"	150	900	12"	0.08"	Fiberglass	430 Stainless Steel	1.3	3594K116	000000	0.6	3594K117	000000
		1"	2"	200	900	12"	0.08"	Fiberglass	430 Stainless Steel	1.7	3594K118	000000	0.8	3594K119	000000
		1 1/2"	1"	150	900	12"	0.08"	Fiberglass	430 Stainless Steel	1.3	3594K121	000000	0.6	3594K122	000000
		1 1/2"	1 1/2"	300	900	12"	0.08"	Fiberglass	430 Stainless Steel	2.5	3594K123	000000	1.3	3594K124	000000
		1 1/2"	2"	300	900	12"	0.08"	Fiberglass	430 Stainless Steel	2.5	3594K125	000000	1.3	3594K126	000000
		2"	1 1/2"	300	900	12"	0.08"	Fiberglass	430 Stainless Steel	2.5	3594K127	000000	1.3	3594K128	000000
		2 1/2"	1 1/2"	350	900	12"	0.08"	Fiberglass	430 Stainless Steel	2.9	3594K213	000000	1.5	3594K214	000000


		With Mineral Insulation



				1"	1"	150	1,200	12"	0.22"	Stainless Steel	430 Stainless Steel	1.3	3594K191	000000	—	———	0


				1"	1 1/2"	200	1,200	12"	0.22"	Stainless Steel	430 Stainless Steel	1.7	3594K251	000000	0.8	3594K252	000000
				1 1/2"	1"	225	1,200	12"	0.22"	Stainless Steel	430 Stainless Steel	1.9	3594K491	000000	0.9	3594K492	000000
				1 1/2"	1 1/2"	350	1,200	12"	0.22"	Stainless Steel	430 Stainless Steel	2.9	3594K971	000000	1.5	3594K972	000000
				1 1/2"	2"	400	1,200	12"	0.22"	Stainless Steel	430 Stainless Steel	3.3	3594K981	000000	1.7	3594K982	000000
				2"	1 1/2"	425	1,200	12"	0.22"	Stainless Steel	430 Stainless Steel	3.5	3594K991	000000	1.8	3594K992	000000
				2 1/2"	1 1/2"	525	1,200	12"	0.22"	Stainless Steel	430 Stainless Steel	4.4	3594K112	000000	2.2	3594K113	000000

Insertion Heaters for 3D Printer Extruder Heating Elements


	Insertion Heater

The metal tip on insertion heaters is the heat source that melts filaments. Connect this tip to a heating block to spread the heat evenly across the filament guide. Plug the other end into your printer controller, which allows you to adjust the temperature. Insertion heaters with a higher wattage heat up faster and reach higher temperatures. Choose a heater with the same voltage as your 3D printer.

	Cartridge, mm			Wire Lead		Cartridge Material
	Dia.	Lg.	Wattage, W	Lg.	Insulation Material	Sheath	Insulation	Includes	For Use With		Each
12V DC



		6	21	30	120 mm	Fiberglass	Stainless Steel	Ceramic	One 1-m Lg. Quick-Disconnect Cable (Molex Female 2 Pin × Wire Leads with Ferrules)	Molex Micro-Fit 3.0	3714N27	000000


		6	22	50	120 mm	Fiberglass	Stainless Steel	Magnesium Oxide	One 1.2-m Lg. Quick-Disconnect Cable (Molex Female 2 Pin × Wire Leads with Ferrules)	Molex Micro-Fit 3.0	3714N34	00000


		24V DC



				6	21	30	120 mm	Fiberglass	Stainless Steel	Ceramic	One 1-m Lg. Quick-Disconnect Cable (Molex Female 2 Pin × Wire Leads with Ferrules)	Molex Micro-Fit 3.0	3714N29	00000


				6	22	50	2 m	Fiberglass, PTFE	Stainless Steel	Magnesium Oxide	—	Screw Terminals	3714N36	00000

Non-Bonding Heat Transfer Compounds

Image of Product. Front orientation. Thermal Paste.

Before installing printer components onto the heating block, coat the mounting holes with non-bonding heat transfer compounds. Also known as thermal paste, these compounds transfer heat to temperature sensors, which improves accuracy. They also keep components from sticking to the heating block, making them easier to remove.

Container
Size, fl. oz.	Type	Chemical	Max. Temperature	Thermal Conductivity @ Temp.	Color	Includes	For Use With		Each
0.2	Syringe	Boron Nitride	1,562° F 850° C	31.4 W/(m⋅°C) @ 212° F	White	Three Applicator Brushes	Aluminum, Brass, Copper, Iron, Nickel, Stainless Steel, Steel, Titanium	3715N11	000000
1	Syringe	Boron Nitride	1,562° F 850° C	31.4 W/(m⋅°C) @ 212° F	White	—	Aluminum, Brass, Copper, Iron, Nickel, Stainless Steel, Steel, Titanium	3715N12	00000

Heating Blocks for 3D Printer Extruder Heating Elements


V6	Volcano

Mosquito

Replace damaged heating elements in your 3D printer, or switch them out to print at a faster speed or higher temperature. Also known as hotends, these heating elements receive filament from an extruder, melt it, and then pass it through a nozzle onto the part being printed. They are compatible with most fused filament fabrication (FFF) 3D printers. Changes to the heating element or temperature cartridge will also require a software update, or your printer may overheat. Made of metal, heating blocks disperse heat from an insertion heater to evenly melt filament as it passes through. They also hold the temperature sensor and join the filament guide to the nozzle, making them an important connection point between parts of the heating element.

Aluminum—Aluminum is the standard material for heating blocks, which works with V6 and Volcano heating elements.

Nickel-Plated Copper—Nickel-plated copper heating blocks conduct more heat and hold up to higher temperatures than aluminum. Use them with Mosquito heating elements.

		For Nozzle Thread			For Insertion Heater			For Filament Guide Thread
	For Nozzle Opening Dia., mm	Lg., mm	Size	Max. Temp.	Cartridge Dia., mm	Orientation	For Temp. Sensor Cartridge Dia., mm	Lg., mm	Size	Material	Mounting Fasteners Included		Each
V6



		0.15, 0.25, 0.3, 0.35, 0.4, 0.5, 0.6, 0.8	6	M6 × 1 mm	285° C 545° F	6	Perpendicular to Nozzle	3	5	M6 × 1 mm	Aluminum	Yes	3714N24	000000


		Volcano



				0.4, 0.6, 0.8, 1, 1.2	14.5	M6 × 1 mm	285° C 545° F	6	Parallel to Nozzle	3	5	M6 × 1 mm	Aluminum	Yes	3714N25	00000


				Mosquito



						0.2, 0.3, 0.4, 0.6, 0.8	7	M6 × 1 mm	450° C 842° F	6	Perpendicular to Nozzle	3	4	M6 × 1 mm	Nickel-Plated Copper	No	3714N39	00000

3D Printer Extruder Heating Elements


V6	Volcano	Mosquito

Select a heating element with a voltage and extrusion type that match your printer.

V6—V6 heating elements are the industry standard. They heat up in minutes to melt most multipurpose and flexible filaments. All parts are precision-machined to print smoothly and prevent clogs. These heating elements are not designed for high-speed or high-temperature printing. They come fully assembled, which saves setup time and eliminates assembly mistakes.

Volcano—Volcano heating elements can print twice as fast as V6 and Mosquito styles. They fit nozzles with large openings, which allow more filament to flow through and result in a faster, stronger print. They come fully assembled, so setup is quick and error free.

Mosquito—For printing high-temperature filaments, such as PEEK and Ultem PEI, use Mosquito heating elements. They reach temperatures up to 149° C or 300° F higher than V6 or Volcano styles, so you can melt a wider variety of materials. These heating elements come with everything you need, and are partially assembled—you’ll need to connect the insertion heater and temperature sensor.

For Direct Feed Extrusions—In printers with a direct feed, the extruder is attached to the heating element, feeding filament directly into it.

For Tube Feed Extrusions—Tube feed extruders, also known as Bowden extruders, are mounted to the frame and pass filament through a tube to the heating element. Heating elements for tube feed printers come with tubing and a fitting that attaches to the extruder.

								12V DC		24V DC
	For Extrusion Type	For Filament Dia., mm	Nozzle Opening Dia., mm	Max. Temp.	Insertion Heater Wattage, W	Heating Block Material	Includes		Each		Each
V6



		Direct Feed	1.75	0.4	285° C 545° F	30	Aluminum	One 1-m Lg. Quick-Disconnect Cable for Temperature Sensor (Molex Female 2 Pin × Standard Male 2 Pin), Silicone Rubber Protective Cover	3714N11	000000	3714N12	000000


		Tube Feed	1.75	0.4	285° C 545° F	30	Aluminum	One 1-m Lg. Quick-Disconnect Cable for Temperature Sensor (Molex Female 2 Pin × Standard Male 2 Pin), Silicone Rubber Protective Cover	3714N13	00000	3714N14	00000


		Volcano



				Direct Feed	1.75	0.8	285° C 545° F	30	Aluminum	One 1-m Lg. Quick-Disconnect Cable for Temperature Sensor (Molex Female 2 Pin × Standard Male 2 Pin), Silicone Rubber Protective Cover	3714N15	00000	3714N16	00000


				Direct Feed	2.85	0.8	285° C 545° F	30	Aluminum	One 1-m Lg. Quick-Disconnect Cable for Temperature Sensor (Molex Female 2 Pin × Standard Male 2 Pin), Silicone Rubber Protective Cover	3714N19	00000	———	0
				Tube Feed	1.75	0.8	285° C 545° F	30	Aluminum	One 1-m Lg. Quick-Disconnect Cable for Temperature Sensor (Molex Female 2 Pin × Standard Male 2 Pin), Silicone Rubber Protective Cover	3714N17	00000	3714N18	00000
				Tube Feed	2.85	0.8	285° C 545° F	30	Aluminum	One 1-m Lg. Quick-Disconnect Cable for Temperature Sensor (Molex Female 2 Pin × Standard Male 2 Pin), Silicone Rubber Protective Cover	3714N22	00000	3714N23	00000


				Mosquito



						Direct Feed	1.75	0.4	450° C 842° F	50	Nickel-Plated Copper	Boron Nitride Paste, One 1.2-m Lg. Quick-Disconnect Cable for Insertion Heater (Molex Female 2 Pin × Wire Leads with Ferrules), Three Hex L-Keys, Two 1-m Lg. Quick-Disconnect Cables for Fan and Temperature Sensor (Molex Female 2 Pin × Standard Male 2 Pin)	3714N43	000000	3714N42	000000

Accessories and Replacements for 3D Printer Extruder Heating Elements

Protective Covers

Volcano

Shield your 3D printer's heating element, or hotend, from sticky filament buildup with these nonstick silicone covers. By repelling plastic and keeping the heating block clean, they increase the heating block's life and prevent stuck filament from dripping off and ruining prints.

Silicone is heat resistant, so these covers also insulate the heating block. An insulated heating block means more consistent extrusion temperatures and therefore better prints. The silicone also keeps heat away from the printed part to prevent it from warping.

Also known as socks, these covers are just as easy to put on and take off—slide on to install and peel off to remove.

Covers for heating block and nozzle protect the nozzle from PETG and other particularly sticky materials, which can gum up the nozzle. The material that surrounds the nozzle is very thin, though, so these covers wear out faster than covers that only protect the block.

	Max. Temp.	Mount Type	Material	Color	Pkg. Qty.		Pkg.
Covers Heating Block



	V6	285° C 545° F	Slide On	Silicone Rubber	Blue	3	3716N11	00000


	Volcano	285° C 545° F	Slide On	Silicone Rubber	Orange	3	3716N13	0000


	Covers Heating Block and Nozzle



			V6	285° C 545° F	Slide On	Silicone Rubber	Blue	3	3716N12	0000

Replacement Cooling Fans

Image of Product. Front orientation. Fans.

		Overall
	For 3D Printer Part Mfr./Brand	Ht.	Wd.	Dp.	Airflow, ft³/min	Volume (Sound), dBA	Current, amp	Frame Material	Blade Material	Mounting Fasteners Included	Mounting Hole Dia.	For Use With		Each
12V DC—2-Pin Pin-and-Housing Connector (Male Connection)



		V6, Volcano	1.18" (30 mm)	1.18" (30 mm)	0.39" (10 mm)	4	35.6	0.15	Plastic	Plastic	No	0.12" (3 mm)	—	1939K131	000000


		Mosquito	0.98" (25 mm)	0.98" (25 mm)	0.39" (10 mm)	3	31	0.10	Plastic	Plastic	Yes	0.12" (3 mm)	Molex Micro-Fit 3.0	1939K134	0000


		24V DC—2-Pin Pin-and-Housing Connector (Male Connection)



				V6, Volcano	1.18" (30 mm)	1.18" (30 mm)	0.39" (10 mm)	4	35.6	0.08	Plastic	Plastic	No	0.12" (3 mm)	—	1939K132	00000


				Mosquito	0.98" (25 mm)	0.98" (25 mm)	0.39" (10 mm)	3	34	0.10	Plastic	Plastic	Yes	0.12" (3 mm)	Molex Micro-Fit 3.0	1939K133	00000

Filament Guides for 3D Printer Extruder Heating Elements


Filament Guide for V6 and Volcano Heating Elements	Filament Guide for Mosquito Heating Element

Filament guides hold the filament as it melts in the heating block and moves toward the nozzle. Also known as heat breaks, they transition the filament from the cool area of the heat sink to the heating block.

			Thread
	For Filament Dia., mm	Overall Lg., mm	Lg., mm	Size	Material		Each
V6, Volcano



		1.75	22	5	M6 × 1 mm	Stainless Steel	3714N32	000000


		2.85	25	5	M6 × 1 mm	Stainless Steel	3714N33	00000


		Mosquito



				1.75	30	4	M6 × 1 mm	Copper, Stainless Steel	3714N41	00000

Temperature Sensors for 3D Printer Extruder Heating Elements

Temperature sensors measure the temperature of the 3D printer's heating block, convert it into an electrical signal, and send it to the printer controller. This tells the printer when the heating element is warmed up and ready to print, and helps maintain a consistent temperature throughout the printing process. When choosing your sensor, make sure the maximum temperature of your heating element does not exceed the maximum temperature of the sensor.

		Cartridge			Wire Lead
	Temp. Range	Dia., mm	Lg., mm	Material	Lg.	Insulation Material	Includes	For Use With		Each
Ungrounded Sensors



		-50° C to 285° C -58° F to 545° F	3	15	Copper	50 mm	Fiberglass	One 1-m Lg. Quick-Disconnect Cable (Molex Female 2 Pin × Standard Male 2 Pin)	Molex Micro-Fit 3.0	3714N26	000000


		-50° C to 500° C -58° F to 932° F	3	15	304 Stainless Steel	2 m	Fiberglass	—	Molex Micro-Fit 3.0	3714N49	00000

Non-Bonding Heat Transfer Compounds

Before installing printer components onto the 3D printer's heating block, coat the mounting holes with non-bonding heat transfer compounds. Also known as thermal paste, these compounds transfer heat to temperature sensors, which improves accuracy. They also keep components from sticking to the heating block, making them easier to remove.

Container
Size, fl. oz.	Type	Chemical	Max. Temp.	Thermal Conductivity @ Temp.	Color	Includes	For Use With		Each
0.2	Syringe	Boron Nitride	850° C 1,562° F	31.4 W/(m⋅°C) @ 212° F	White	Three Applicator Brushes	Aluminum, Brass, Copper, Iron, Nickel, Stainless Steel, Steel, Titanium	3715N11	000000
1	Syringe	Boron Nitride	850° C 1,562° F	31.4 W/(m⋅°C) @ 212° F	White	—	Aluminum, Brass, Copper, Iron, Nickel, Stainless Steel, Steel, Titanium	3715N12	00000