Lifting Magnets


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FAQ on Ordering

NL-A Lifting Magnets NL lifting magnets

Armstrong LiftMag™

To select a right NL-A lifting magnet to lift your work load you must consider the following things:

Lifting Capacities and Working Temperature.

Dimensions and Weight of the lifting magnet.

What is the shape and dimensions of the load to be lifted?
Flat load?
Round solid bar?
Pipe? and

What are their surface conditions? (Smooth or rough? Clean or rusty? Painted or not? etc. )

What material is the work load to be lifted?

After reading the following information you probably can select a right lifting magnet or may request a quote for it by clicking .
If you are still not very sure which model would be applicable for your use, please fill "Lifter Application Data Form" and submit to us.

Lifting Capacities and Max. Working Temperature:

P/N	Model	To lift Flat Load				To lift Round load			Max. Working Temperature (Fº)
P/N	Model	Rated Max. Capacity (lb)	Tested Load (lb)	Min. thickness to get the Rated Max. Capaciy (in)	Min. thickness of load to lift (in)	Rated Max. Capacity (lb)	Max. Diameter (in)	Min. thickness of pipe wall to lift (in)	Max. Working Temperature (Fº)
81406	NL-660A	660	1,980	0.787	1/4	264	8	1/4	148
81413	NL-1320A	1,320	3,690	1.181	3/8	528	10	3/8	148
81422	NL-2200A	2,200	6,600	1.575	1/2	880	12	1/2	148
81444	NL4400A	4,400	13,200	2.165	3/4	No	No	No	148

Dimensions and Weights:

P/N	Model	Overall Size					Lifting Eye Opening		Weight (lb)
P/N	Model	L (in)	B (in)	H1 (in)	H2 (in)	B1 (in)	F (in)	G (in)	Weight (lb)
81406	NL-660A	8.00	3.43	3.50	2.68	8.78	1.77	1.50	22
81413	NL-1320A	9.45	4.25	4.29	3.39	11.30	2.28	1.77	41
81422	NL-2200A	13.00	5.83	4.92	3.74	14.33	2.36	2.05	93
81444	NL4400A	18.31	7.00	5.71	4.80	16.85	2.36	2.17	223

To Lift Flat Load: Low Carbon Steel, Clean and Smooth flat surface (0.00" air gap between magnet and the load):

Model	Lifting Conditions		Thickness of Flat Load
Model	Lifting Conditions		1/4"	3/8"	1/2"	3/4"	1"	2"	3" (or thicker)
NL-660A	Rated Capacity (lb)		200	300	400	500	660	660	660
	To Lift Plate Only	Rated Capacity (lb)	130	220	315	430	500	660	660
		Max. Size (s. f.)	12	14	15	13	12	8	5
		Max. Length (ft.)	4	4	4	4	5	5	5
NL-1320A	Rated Capacity (lb)		---	400	650	900	1,100	1,320	1,320
	To Lift Plate Only	Rated Capacity (lb)	---	280	380	660	1,000	1,320	1,320
		Max. Size (s. f.)	---	18	18	20	24	15.7	10.5
		Max. Length (ft.)	---	5	6	6	6	6	6
NL-2200A	Rated Capacity (lb)		---	---	900	1,200	1,500	2,200	2,200
	To Lift Plate Only	Rated Capacity (lb)	---	---	420	900	1200	2,000	2,200
		Max. Size (s. f.)	---	---	20	27	28	24	17.5
		Max. Length (ft.)	---	---	6	6	7	6	8
NL-4400A	Rated Capacity (lb)		---	---	---	1760	2,400	4,000	4,400
	To Lift Plate Only	Rated Capacity (lb)	---	---	---	920	1,500	2,800	4,400
		Max. Size (s. f.)	---	---	---	28	36	33	35
		Max. Length (ft.)	---	---	---	7	8	8	8

The lifting capacity depends both metal plate thickness and its warp when lifting a big but thin plate.

To Lift Solid Bar: Low Carbon steel with a Clean and Smooth surface (0.00" air gap between magnet and the load):

Diameter of Solid Bar		2"	3"	4"	5"	6"	8"	10"	12"
NL-660A	Max. Capacity (lb)	107	216	264	264	264	264	---	---
NL-660A	Max. Length (ft)	10	9	7.7	5	3.4	1.9	---	---
NL-1320A	Max. Capacity (lb)	---	264	528	528	528	528	528	---
NL-1320A	Max. Length (ft)	---	11	12	8	5.5	3	2	---
NL-2200A	Max. Capacity (lb)	---	336	600	880	880	880	880	880
NL-2200A	Max. Length (ft)	---	14	14	13	9	5	3.3	2.3

To Lift Pipe: Low Carbon steel, clean and smooth round surface.

Nom. Size		2.5"	3"	4"	6"		8"			10"				12"
Overall Diameter		3"	3.5"	4.5"	6.625"		8.625"			10.75"				12.75"
Pipe wall Tks (S: Solid)		0.276"	0.300"	0.337	0.280"	0.432"	0.277"	0.322"	0.500"	0.307"	0.365"	0.500"	0.593"	0.330"	0.375"	0.406"	0.500"
NL-660A	Max. Capacity (lb)	50	70	85	50	100	50	80	132	75	90	132	160	85	90	95	132
NL-660A	Max. Length (ft)	6.5	6.8	5.7	2.6	3.5	2	2.8	3	2.2	2.2	2.4	2.5	1.9	1.8	1.8	2
NL-1320A	Max. Capacity (lb)	---	---	---	---	150	---	---	190	---	---	190	320	---	105	130	190
NL-1320A	Max. Length (ft)	---	---	---	---	5.3	---	---	4.4	---	---	3.5	5	---	2.1	2.4	2.9
NL-2200A	Max. Capacity (lb)	---	---	---	---	---	---	---	210	---	---	210	250	---	---	---	210
NL-2200A	Max. Length (ft)	---	---	---	---	---	---	---	4.8	---	---	3.8	3.9	---	---	---	3.2

Reduction of rated lifting capacity for the surface finish:

If the surface of the load is rust, dirt or rough, approximate 0.010" air gap will be created between the lifting magnet and the load. Therefore, the lifting capacity will be 65%-85% of that above.

If the surface of the load is painted, very rust or rough, the air gap would be 0.020", the lifting capacity would be 50%-70%

Reduction of rated lifting capacity for alloy:

Low Carbon Steel: 100%.

Middle Carbon Steel: 85%-90%.

High Carbon Steel: 70%-75%.

Cast Iron: 45%-50%