Threaded Electromagnets | McMaster-Carr

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48 Products

Hardwire Electromagnets

Position the face of these magnets in direct contact with a flat metal surface and turn on the power to create a magnetic hold. Magnets have wire leads that connect to a DC electromagnet power supply (sold separately). Holding power is not adjustable. When turned off, the magnet will still have some residual magnetism.

Warning: Maximum pull ratings are based on direct contact with rust-free and unpainted iron plate. Variations in material condition will significantly reduce these ratings. Do not use for lifting over people.

Disc

Spring-Loaded Release—Magnets with spring-loaded release have a pin that pops up to separate the object and magnet when the power is turned off.

	OD	Ht.	Max. Pull, lbf	Sets of Poles	Max. Temp., ° F	Thread Size	Thread Dp.	No. of Mounting Holes	Mounting Hole Ctr.-to-Ctr.	Wire Lead Lg.	Features		Each
12V DC



	1.4	1/2"	1 1/2"	4	1	100	6-32	1/2"	1	—	24"	—	000000	0000000


	1.4	3/4"	1 1/4"	9	1	100	10-32	3/8"	1	—	24"	—	00000000	00000
	1.4	1"	3/4"	26	1	100	10-32	3/8"	1	—	24"	—	00000000	00000
	3.6	1"	1 1/4"	32	1	100	10-32	1/2"	1	—	24"	—	00000000	00000
	4.4	1 1/4"	1 1/4"	50	1	100	1/4"-20	1/2"	1	—	24"	—	00000000	00000
	4.6	1 1/2"	1 1/2"	80	1	100	1/4"-20	1/2"	1	—	24"	—	00000000	00000
	5.6	2"	1 5/8"	180	1	100	1/4"-20	1/2"	1	—	24"	—	00000000	00000


	24V DC



			0.9	25/32"	63/64"	1	1	100	M5 x 0.8 mm	0.19"	1	—	8"	Spring-Loaded Release	0000000	000000


			1.4	1/2"	1 1/2"	4	1	100	6-32	3/8"	1	—	24"	—	0000000	000000
			1.4	3/4"	1 1/4"	9	1	100	10-32	3/8"	1	—	24"	—	00000000	00000
			1.4	1"	3/4"	26	1	100	10-32	3/8"	1	—	24"	—	00000000	00000
			2	1.18"	63/64"	6	1	100	M6 x 1 mm	0.23"	1	—	8"	Spring-Loaded Release	0000000	000000
			2.9	1.57"	63/64"	22	1	100	M6 x 1 mm	0.29"	1	—	8"	Spring-Loaded Release	0000000	000000
			3.6	1"	1 1/4"	32	1	100	10-32	1/2"	1	—	24"	—	00000000	00000
			4.4	1 1/4"	1 1/4"	50	1	100	1/4"-20	1/2"	1	—	24"	—	00000000	00000
			4.6	1 1/2"	1 1/2"	80	1	100	1/4"-20	1/2"	1	—	24"	—	00000000	00000
			5.6	2"	1 5/8"	180	1	100	1/4"-20	1/2"	1	—	24"	—	00000000	00000


			110V DC



					8	3 1/2"	1 1/2"	650	1	100	1/4"-20	1/2"	2	1"	24"	—	0000000	000000


					33	4"	3"	1,000	1	100	3/8"-16	5/8"	2	1"	24"	—	0000000	000000
					60	10"	2 1/2"	4,700	1	100	5/8"-11	2"	2	3"	72"	—	0000000	000000

Rectangle

	Wd.	Lg.	Ht.	Max. Pull, lbf	Sets of Poles	Max. Temp., ° F	Thread Size	Thread Dp.	No. of Mounting Holes	Mounting Hole Ctr.-to-Ctr.	Wire Lead Lg.		Each
12V DC



	8	1 1/2"	1 1/2"	1 1/4"	100	1	100	10-32	3/8"	1	—	24"	00000000	0000000


	10	1 1/2"	2 1/2"	1 1/4"	160	1	100	10-32	3/8"	2	1"	24"	00000000	000000
	14	2 1/2"	2 1/2"	1 1/2"	300	1	100	1/4"-20	1/2"	3	3/8"	36"	00000000	000000
	29	2 1/2"	4 1/2"	1 7/8"	600	1	100	1/4"-20	3/4"	2	2"	36"	00000000	000000


	24V DC



			8	1 1/2"	1 1/2"	1 1/4"	100	1	100	10-32	3/8"	1	—	24"	00000000	000000


			10	1 1/2"	2 1/2"	1 1/4"	160	1	100	10-32	3/8"	2	1"	24"	00000000	000000
			14	2 1/2"	2 1/2"	1 1/2"	300	1	100	1/4"-20	1/2"	3	3/8"	36"	00000000	000000
			28	3 1/2"	3 1/2"	2"	700	1	100	3/8"-16	3/4"	1	—	36"	00000000	000000
			29	2 1/2"	4 1/2"	1 7/8"	600	1	100	1/4"-20	3/4"	2	2"	36"	00000000	000000


			110V DC



					12	2 1/2"	4 1/2"	2"	750	1	100	1/4"-20	1/2"	2	2"	24"	0000000	000000


					37	3"	6"	2"	1,000	1	100	3/8"-16	3/8"	2	3"	24"	0000000	000000
					58	4"	8"	2 1/2"	1,700	1	100	3/8"-16	1"	2	4"	36"	00000000	000000
					65	6"	12"	3 1/2"	5,000	1	100	1/2"-13	1 1/4"	2	3"	72"	0000000	000000

Plug-In Electromagnets

Position the face of these magnets in direct contact with a flat metal surface and plug in to create a magnetic hold. The plug contains a transformer that converts power from AC to DC, so no additional wiring or power source is needed. Holding power is not adjustable. When turned off, the magnet will still have some residual magnetism.

Disc

	OD	Ht.	Max. Pull, lbf	Sets of Poles	Max. Temp., ° F	Thread Size	Thread Dp.	No. of Mounting Holes	Cord Lg., ft.		Each
120V AC



	2.8	1 1/4"	1 1/4"	40	1	100	1/4"-20	3/8"	1	3	0000000	0000000


	3.6	1 3/4"	1 5/8"	110	1	100	1/4"-20	1/2"	1	3	0000000	000000
	8	2"	1 5/8"	90	1	100	1/4"-20	1/2"	1	3	0000000	000000
	14	2"	2 1/2"	100	1	100	1/4"-20	1/2"	1	3	0000000	000000
	25	3"	3"	200	1	100	5/16"-18	1/2"	1	3	0000000	000000

Rectangle

	Wd.	Lg.	Ht.	Max. Pull, lbf	Sets of Poles	Max. Temp., ° F	Thread Size	Thread Dp.	No. of Mounting Holes	Mounting Hole Ctr.-to-Ctr.	Cord Lg., ft.		Each
120V AC



	8	2 1/2"	2 1/2"	1 1/2"	280	1	100	1/4"-20	1/2"	2	3/4"	3	0000000	0000000


	10	1 1/2"	2 1/2"	1 1/4"	80	1	100	10-32	1/2"	2	1"	3	0000000	000000
	30	2 1/2"	4 1/2"	1 7/8"	300	1	100	1/4"-20	1/2"	2	2"	3	0000000	000000

Hardwire Electromagnets with Parallel Poles

Parallel poles create a better magnetic hold on thinly painted, plated, or coated flat metal surfaces than other magnets. A terminal block on the magnet connects to a DC electromagnet power supply (sold separately). Holding power is not adjustable. When turned off, the magnet will still have some residual magnetism.

Rectangle

Image of Product. Front orientation. Electromagnets. Hardwire Electromagnets with Parallel Poles.

	Wd.	Lg.	Ht.	Max. Pull, lbf	Sets of Poles	Max. Temp., ° F	Thread Size	Thread Dp.	No. of Mounting Holes	Mounting Hole Ctr.-to-Ctr.		Each
24V DC



	5	1"	2"	1 3/8"	80	1	100	1/4"-20	1/4"	2	1"	0000000	0000000


	7.8	1"	3"	1 3/8"	170	1	100	1/4"-20	1/4"	2	2"	0000000	000000
	9.3	1"	4"	1 3/8"	210	1	100	1/4"-20	1/4"	2	3"	0000000	000000
	18	1"	6"	1 3/8"	260	1	100	1/4"-20	1/4"	2	4 1/2"	0000000	000000
	21	2"	4"	2 3/4"	470	1	100	5/16"-18	1/4"	2	3"	0000000	000000
	30	2"	6"	2 3/4"	620	1	100	5/16"-18	1/4"	2	4 1/2"	0000000	000000
	36	2"	8"	2 3/4"	930	1	100	5/16"-18	1/4"	2	6 1/2"	0000000	000000