Tubular Heat Elements | McMaster-Carr

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72 Products

Finned Tubular Heating Elements for Duct, Ovens, and Dryers


M-Shape	Straight	U-Shape

These tubular heating elements minimize the risk of sparks and fire from combustible particles in the flow stream, making them a safer choice than open coil heating elements. Finned for increased surface area, they quickly dissipate heat in air and inert gas heating systems such as duct heating elements and convection ovens. Their sheath, fins, and fittings are made of stainless steel, which resists heat and corrosion better than steel. These heating elements require a temperature switch or control (sold separately) to regulate output.

Welded on One End—Heating elements with end fittings welded on one end have one fitting permanently welded for a secure connection, while the other fitting is loose to create room for tube expansion during heating. The extra space helps prevent damage.

						Fin			Heating Element		Screw Terminal
	Wattage, W	Watt Density, W/in²	Current, amp	Overall Lg.	Max. Heat Output, ° F	Lg.	Dia.	Material	Lg.	Material	Thread Size	Lg.		Each
120V AC, Single Phase







				Straight—Welded on One End

				1,000	60	8.33	23 1/2"	1,200	16 1/2"	15/16"	Stainless Steel	20"	304 Stainless Steel	8-32	1.125"	7085N13	0000000




						U-Shape—Welded on Both Ends

						1,000	60	8.33	12"	1,200	8 3/4"	15/16"	Stainless Steel	10 1/4"	304 Stainless Steel	8-32	1.125"	7085N42	000000




								M-Shape—Welded on Both Ends

								1,500	60	12.5	9 1/2"	1,200	6 1/4"	15/16"	Stainless Steel	7 3/4"	304 Stainless Steel	8-32	1.125"	7085N72	000000


								240V AC, Single Phase







												Straight—Welded on One End

												2,000	80	8.33	32 1/4"	1,200	25"	1 3/16"	Stainless Steel	28 1/4"	304 Stainless Steel	10-32	1.125"	7085N18	000000




														M-Shape—Welded on Both Ends

														3,000	80	12.5	12 1/4"	1,200	9"	1 3/16"	Stainless Steel	10 1/4"	304 Stainless Steel	10-32	1.125"	7085N77	000000


														4,000	80	16.67	15 1/4"	1,200	12"	1 3/16"	Stainless Steel	13 1/4"	304 Stainless Steel	10-32	1.125"	7085N78	000000


														480V AC, Single Phase







																		U-Shape—Welded on Both Ends

																		1,000	80	2.08	9 3/4"	1,200	6 1/2"	1 3/16"	Stainless Steel	7 3/4"	304 Stainless Steel	10-32	1.125"	7085N54	000000


																		2,000	80	4.17	15 3/4"	1,200	12 1/2"	1 3/16"	Stainless Steel	13 3/4"	304 Stainless Steel	10-32	1.125"	7085N56	000000
																		3,000	80	6.25	22 1/4"	1,200	19"	1 3/16"	Stainless Steel	20 1/4"	304 Stainless Steel	10-32	1.125"	7085N57	000000
4,000																		80	8.33	28 1/4"	1,200	25"	1 3/16"	Stainless Steel	26 1/4"	304 Stainless Steel	10-32	1.125"	7085N58	000000




		M-Shape—Welded on Both Ends

		3,000	80															6.25	12 1/4"	1,200	9"	1 3/16"	Stainless Steel	10 1/4"	304 Stainless Steel	10-32	1.125"	7085N85	000000


		4,000	80															8.33	15 1/4"	1,200	12"	1 3/16"	Stainless Steel	13 1/4"	304 Stainless Steel	10-32	1.125"	7085N86	000000
		6,000	80															12.5	21 1/4"	1,200	18"	1 3/16"	Stainless Steel	19 1/4"	304 Stainless Steel	10-32	1.125"	7085N88	000000
		7,000	80															14.58	24 1/4"	1,200	21"	1 3/16"	Stainless Steel	22 1/4"	304 Stainless Steel	10-32	1.125"	7085N89	000000

Bend-and-Stay Heating Elements for Ducts, Ovens, and Dryers

Form these flexible heating elements into any shape to mount them through brackets, collars, and holes. They are also known as tubular heating elements and can be used to heat air, liquids, and gases. All require a temperature switch or controller (sold separately) to regulate heat output.

				Heating Element					Thread
	Wattage, W	Watt Density, W/in²	Current, amp	Lg.	Material	Max. Heat Output, ° F	Min. Bend Radius	Wire Connection	Size	Type	Mounting Fasteners Included		Each
120V AC, Single Phase







				0.26" Diameter

				250	27.8	2.1	16"	Incoloy Nickel	1,200	15/16"	Screw Terminal	10-32	UNF	No	3540K31	000000


				350	28.6	2.9	20"	Incoloy Nickel	1,200	15/16"	Screw Terminal	10-32	UNF	No	3540K32	000000
				450	27.5	3.8	25"	Incoloy Nickel	1,200	15/16"	Screw Terminal	10-32	UNF	No	3540K33	00000
				500	26.6	4.2	28"	Incoloy Nickel	1,200	15/16"	Screw Terminal	10-32	UNF	No	3540K34	00000
				650	29.5	5.4	32"	Incoloy Nickel	1,200	15/16"	Screw Terminal	10-32	UNF	No	3540K35	00000
				750	30.8	6.3	36"	Incoloy Nickel	1,200	15/16"	Screw Terminal	10-32	UNF	No	3540K36	00000
				850	29.7	7.1	40"	Incoloy Nickel	1,200	15/16"	Screw Terminal	10-32	UNF	No	3540K37	000000
				1,000	29.9	8.3	46"	Incoloy Nickel	1,200	15/16"	Screw Terminal	10-32	UNF	No	3540K38	00000
				1,100	29.9	9.2	50"	Incoloy Nickel	1,200	15/16"	Screw Terminal	10-32	UNF	No	3540K39	00000
				1,200	29.4	10	55"	Incoloy Nickel	1,200	15/16"	Screw Terminal	10-32	UNF	No	3540K41	00000
				1,350	30	11.3	60"	Incoloy Nickel	1,200	15/16"	Screw Terminal	10-32	UNF	No	3540K42	000000


				1,500	30.6	12.5	65"	Incoloy Nickel	1,200	15/16"	Screw Terminal	10-32	UNF	No	3540K43	00000




						0.315" Diameter

						275	25.2	2.3	16"	Incoloy Nickel	1,200	1 1/16"	Screw Terminal	10-32	UNF	No	3540K11	00000


						400	26.9	3.3	20"	Incoloy Nickel	1,200	1 1/16"	Screw Terminal	10-32	UNF	No	3540K12	000000
						625	27.5	5.2	28"	Incoloy Nickel	1,200	1 1/16"	Screw Terminal	10-32	UNF	No	3540K14	00000
						650	32.8	5.4	25"	Incoloy Nickel	1,200	1 1/16"	Screw Terminal	10-32	UNF	No	3540K13	00000
						750	28.1	6.3	32"	Incoloy Nickel	1,200	1 1/16"	Screw Terminal	10-32	UNF	No	3540K15	000000
						975	28.2	8.1	40"	Incoloy Nickel	1,200	1 1/16"	Screw Terminal	10-32	UNF	No	3540K17	000000
						1,300	29.2	10.8	50"	Incoloy Nickel	1,200	1 1/16"	Screw Terminal	10-32	UNF	No	3540K29	00000


						240V AC, Single Phase







										0.315" Diameter

										850	27.7	3.5	36"	Incoloy Nickel	1,200	1 1/16"	Screw Terminal	10-32	UNF	No	3540K16	00000


										1,150	28.3	4.8	46"	Incoloy Nickel	1,200	1 1/16"	Screw Terminal	10-32	UNF	No	3540K18	00000
										1,450	29.3	6	55"	Incoloy Nickel	1,200	1 1/16"	Screw Terminal	10-32	UNF	No	3540K21	000000
										1,600	29.4	6.7	60"	Incoloy Nickel	1,200	1 1/16"	Screw Terminal	10-32	UNF	No	3540K22	00000
										1,750	29.5	7.3	65"	Incoloy Nickel	1,200	1 1/16"	Screw Terminal	10-32	UNF	No	3540K23	00000




												0.43" Diameter

400	26.9											1.7	16"	Incoloy Nickel	1,200	1 1/2"	Screw Terminal	10-32	UNF	No	3540K51	000000


550	27.1											2.3	20"	Incoloy Nickel	1,200	1 1/2"	Screw Terminal	10-32	UNF	No	3540K52	00000
750	27.8	3.1										25"	Incoloy Nickel	1,200	1 1/2"	Screw Terminal	10-32	UNF	No	3540K53	00000
850	27.4	3.5	28"									Incoloy Nickel	1,200	1 1/2"	Screw Terminal	10-32	UNF	No	3540K54	000000
1,000	27.4	4.2	32"									Incoloy Nickel	1,200	1 1/2"	Screw Terminal	10-32	UNF	No	3540K55	000000
1,100	26.3	4.6	36"									Incoloy Nickel	1,200	1 1/2"	Screw Terminal	10-32	UNF	No	3540K56	00000
1,250	26.4	5.2	40"									Incoloy Nickel	1,200	1 1/2"	Screw Terminal	10-32	UNF	No	3540K57	000000
1,500	27.1	6.3	46"									Incoloy Nickel	1,200	1 1/2"	Screw Terminal	10-32	UNF	No	3540K58	000000
1,700	28	7.1	50"									Incoloy Nickel	1,200	1 1/2"	Screw Terminal	10-32	UNF	No	3540K59	000000
1,850	27.4	7.7	55"									Incoloy Nickel	1,200	1 1/2"	Screw Terminal	10-32	UNF	No	3540K61	000000
2,000	26.9	8.3	60"									Incoloy Nickel	1,200	1 1/2"	Screw Terminal	10-32	UNF	No	3540K62	000000


2,250	27.8	9.4	65"									Incoloy Nickel	1,200	1 1/2"	Screw Terminal	10-32	UNF	No	3540K63	000000

Replacement Thermal Insulation Standoffs

	Pkg. Qty.		Pkg.
Replacement Ceramic Insulators	10	3540K75	000000

Bend-and-Stay Immersion Heating Elements with Through-Wall Fittings for Chemical Solutions

Form these heating elements into any shape and install them through container walls with the attached bulkhead fittings. They quickly and efficiently heat liquid through direct contact. All require a temperature switch or controller (sold separately) to regulate heat output. The Incoloy heating element has excellent resistance to harsh chemicals.

Note: Fully immerse the heating element in liquid to prevent heating element failure.

							Thread
	Wattage, W	Watt Density, W/in²	Current, amp	Heating Element Lg.	Min. Bend Radius	For Hole Size	Size	Type	Gender	Wire Connection	Includes	For Use With		Each
120V AC, Single Phase







				17/64" Diameter Heating Element

				250	30	2.1	11"	15/16"	15/32"	7/16"-20	UNF	Male	Screw Terminal	Flat Washers Gaskets Hex Nuts	Ammonium Hydroxide Ethylene Glycol Nitric Acid Soap Solutions Sodium Hydroxide (Caustic Soda) Water	1489N31	0000000


				350	30	2.9	15"	15/16"	15/32"	7/16"-20	UNF	Male	Screw Terminal	Flat Washers Gaskets Hex Nuts	Ammonium Hydroxide Ethylene Glycol Nitric Acid Soap Solutions Sodium Hydroxide (Caustic Soda) Water	1489N32	000000
				450	30	3.8	20"	15/16"	15/32"	7/16"-20	UNF	Male	Screw Terminal	Flat Washers Gaskets Hex Nuts	Ammonium Hydroxide Ethylene Glycol Nitric Acid Soap Solutions Sodium Hydroxide (Caustic Soda) Water	1489N33	000000
				650	30	5.4	27"	15/16"	15/32"	7/16"-20	UNF	Male	Screw Terminal	Flat Washers Gaskets Hex Nuts	Ammonium Hydroxide Ethylene Glycol Nitric Acid Soap Solutions Sodium Hydroxide (Caustic Soda) Water	1489N35	000000
				850	30	7.1	35"	15/16"	15/32"	7/16"-20	UNF	Male	Screw Terminal	Flat Washers Gaskets Hex Nuts	Ammonium Hydroxide Ethylene Glycol Nitric Acid Soap Solutions Sodium Hydroxide (Caustic Soda) Water	1489N37	000000
				1,000	30	8.3	41"	15/16"	15/32"	7/16"-20	UNF	Male	Screw Terminal	Flat Washers Gaskets Hex Nuts	Ammonium Hydroxide Ethylene Glycol Nitric Acid Soap Solutions Sodium Hydroxide (Caustic Soda) Water	1489N38	000000
				1,500	30	12.5	60"	15/16"	15/32"	7/16"-20	UNF	Male	Screw Terminal	Flat Washers Gaskets Hex Nuts	Ammonium Hydroxide Ethylene Glycol Nitric Acid Soap Solutions Sodium Hydroxide (Caustic Soda) Water	1489N43	000000




						5/16" Diameter Heating Element

						1,300	30	10.8	45"	1 1/16"	15/32"	7/16"-20	UNF	Male	Screw Terminal	Flat Washers Gaskets Hex Nuts	Ammonium Hydroxide Ethylene Glycol Nitric Acid Soap Solutions Sodium Hydroxide (Caustic Soda) Water	1489N29	000000


						240V AC, Single Phase







										5/16" Diameter Heating Element

										850	30	3.5	31"	1 1/16"	15/32"	7/16"-20	UNF	Male	Screw Terminal	Flat Washers Gaskets Hex Nuts	Ammonium Hydroxide Ethylene Glycol Nitric Acid Soap Solutions Sodium Hydroxide (Caustic Soda) Water	1489N16	000000




												7/16" Diameter Heating Element

												1,500	30	6.3	41"	1 1/2"	11/16"	5/8"-18	UNF	Male	Screw Terminal	Flat Washers Gaskets Hex Nuts	Ammonium Hydroxide Ethylene Glycol Nitric Acid Soap Solutions Sodium Hydroxide (Caustic Soda) Water	1489N58	000000


												2,250	30	9.4	60"	1 1/2"	11/16"	5/8"-18	UNF	Male	Screw Terminal	Flat Washers Gaskets Hex Nuts	Ammonium Hydroxide Ethylene Glycol Nitric Acid Soap Solutions Sodium Hydroxide (Caustic Soda) Water	1489N63	000000

Flow-Through Heating Elements for Air

Tackle high-temperature drying, shrink-wrapping, and plastic welding jobs with your everyday compressed air supply. These heating elements connect to your air source on one end and to your process on the other. Control the output temperature by adjusting the incoming airflow or power sent to the heating element. The outlet can point upwards, straight, or as much as 10° downwards. Be cautious when positioning it—pointing it further downwards may damage the heating element.

To calculate the wattage needed for your application, multiply your incoming airflow in CFM by the number of degrees you need to increase air temperature, then divide by three.

			Heating Element												Without Temperature Control
	Wattage, W	Watt Density, W/in	Lg.	Wd.	No. of	Max. Air Input Temp., ° F	Max. Air Output Temperature, ° F	Max. Input Airflow, ft³/min	Pipe Size	Thread Type	Gender	Electrical Connection Type	Wire Connection	For Use With	Current, amp		Each
Ceramic Heating Element with Copper Body







				120V AC, Single Phase

				400	89	5"	1/2"	1	250	1,000	10	1/8	NPT	Female	Hardwire	Wire Leads	Air	3.3	6586N11	0000000


				650	87	8"	1/2"	1	250	1,000	10	1/8	NPT	Female	Hardwire	Wire Leads	Air	5.4	6586N12	000000
				750	136	6"	3/4"	1	250	1,000	20	1/4	NPT	Female	Hardwire	Wire Leads	Air	6.2	6586N13	000000
				1,250	132	10"	3/4"	1	250	1,000	20	1/4	NPT	Female	Hardwire	Wire Leads	Air	10.4	6586N14	000000




						240V AC, Single Phase

						1,000	182	6"	1 1/4"	1	250	1,000	50	1/2	NPT	Female	Hardwire	Wire Leads	Air	4.1	6586N15	000000


						2,500	333	8"	1 1/4"	1	250	1,000	50	1/2	NPT	Female	Hardwire	Wire Leads	Air	10.4	6586N16	000000
						4,000	348	12"	1 1/4"	1	250	1,000	50	1/2	NPT	Female	Hardwire	Wire Leads	Air	16.6	6586N17	000000

Accessories for Heating Elements

Thermocouple Probes for 240V AC Heating Elements

Image of Product. Front orientation. Thermocouples. Flow-Through Heating Elements for Air.

Thermocouple probes and thermocouple fittings allow you to use a temperature controller to operate 240V AC heating elements. The probe threads into the fitting to measure your air outlet temperature.

	Probe		Probe Connection			Cable
	Lg.	Dia.	Pipe Size	Thread Type	Gender	Lg., ft.	Material		Each
Type J Thermocouple



		1"	3/16"	1/4	NPT	Male	6	Fiberglass	6586N19	0000000

Thermocouple Fittings for 240V AC Heating Elements

Image of Product. Front orientation. Thermocouple and RTD Fittings. Flow-Through Heating Elements for Air.

Thermocouple probes and thermocouple fittings allow you to use a temperature controller to operate 240V AC heating elements. The probe threads into the fitting to measure your air outlet temperature.

Air Inlet		Air Outlet			Thermocouple Probe Connection
Pipe Size	Gender	Pipe Size	Thread Type	Gender	Pipe Size	Thread Type	Gender		Each
1/2	Male	1/2	NPT	Female	1/4	NPT	Female	6586N18	0000000

Hot and Cold Tubes for Supplied-Air Respirators for Plant Air Lines

For Heating/Cooling

Adjust the temperature of the air flowing into your respirator. These tubes rapidly spin the air from your supply line to separate it into hot and cold streams. Turn a knob to control how much air from each stream flows into your respirator.

	Lg.	Air Temp. Increase, ° F	Air Temp. Reduction, ° F	Material	Belt Material	Fitting Connection	Quick-Disconnect Style	Coupling Size	Includes	Features		Each
For Heating/Cooling



	1"	9"	0 to 25	0 to 30	Aluminum	Polypropylene Fabric	Quick Disconnect	Industrial	1/4	Cable Tie, Heat Shield	Temperature Control Valve	9770T111	0000000