Internal Threaded Ferrite Cup Magnets

The internal(female) threaded ferrite pot magnets are assembled with disc magnet and steel shell/cup.On top of the steel shell, the is a internal threaded bushing.The steel pot not only keep the magnet safe from damages but also make the magnetic force higher! Because of the steel shell, there is only one magnetic surface that used for working, the optimal surface is steel and iron.Thanks to the internal threaded bushing,steel hook and eyelet can be screwed on the internal threaded ferrite pot magnets.

All the ferrite pot magnets with internal threaded socket are made of anisotropic ferrite magnets. Our ferrite cup magnets maybe even stronger! The steel pot/cup can be made with chrome plated, nickel plated, zinc coated and paint coated, even rubber coated.The below table shows the standard models of internal threaded ferrite pot magnets.

Such internal threaded ferrite pot magnets can be used as magnetic hooks for holding
Such internal threaded ferrite pot magnets can be used as magnetic bases for mounting.
The large internal threaded ferrite pot magnets can be used for magnet fishing.

The large internal threaded ferrite cup magnets make it possible to hold heavy objects to any metal surface. The strong and permanent magnetic force will not lose even used several years. The standard sizes of our ferrite cup (pot) magnets  with female(internal) threaded bushing are available in diameter from 10mm to 125mm, and magnetic holding force is up to 130kgs. If no standard female threaded ferrite cup magnets can be used for you,then try our neodymium internal threaded pot magnets.


Parameters of standard internal(female)threaded ferrite cup magnets:

Item Code	Dimension					Pull Force (N)
	D(mm)	d(mm)	H(mm)	h(mm)	M(mm)
Ferrite-D-10	10	6	11.5	4.5	M3	4
Ferrite-D-13	13	6	11.5	4.5	M3	10
Ferrite-D-16	16	6	11.5	4.5	M3	18
Ferrite-D-20	20	6	13	6.0	M3	30
Ferrite-D-25	25	8	15	7.0	M4	40
Ferrite-D-32	32	8	15	7.0	M4	80
Ferrite-D-36	36	8	16	8.0	M4	10.0
Ferrite-D-40	40	10	18	8.0	M5	125
Ferrite-D-47	47	8	17	9.0	M4	180
Ferrite-D-50	50	12	22	10.0	M6	220
Ferrite-D-57	57	8	18.5	10.5	M4	280
Ferrite-D-63	63	15	30	14.0	M8	350
Ferrite-D-80	80	20	34	18.0	M10	600
Ferrite-D-100	100	22	43	22.0	M12	900
Ferrite-D-125	125	25	50	26.0	M14	1300

The magnetic pull force was measured on a 10 mm thick polished steel plate at room temperature. In special cases, the maximum deviation may be - 10%. Generally, it usually exceeds the value. Small scratches and breakage in the magnetic material do not affect the pull force of the whole ferrite cup magnet. Depending on the type of application (installation, temperature, thickness of the object being sucked), the pull force is greatly affected. The tension value is only for reference, not as a standard to measure the quality of the ferrite pot magnets.
In addition to standard sizes, we also offer custom solutions for internal ferrite pot magnets.