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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 Tmp.
(Fº)

Rated Max. Cpcty
(lb)

Test Load
(lb)

Min. tks  to get the Rated Max. Cpcty
(in)

Min. thk of load to lift
(in)

Rated Max. Capacity
(lb)

Max. Dia.
(in)

Min. thk of pipe wall to lift
(in)

81402

NL-220A

220

660

0.591

¼

88

6

1/4

148

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

NL-4400A

4,400

13,200

2.165

3/4

No

No

No

148

Request For Quotation, click

Dimensions and Weights:

P/N

Model

Overall Size

 Lifting Eye Opening

Weight
(lb)

L
(in)

B
(in)

H1
(in)

H2
(in)

B1
(in)

F
(in)

G
(in)

81402

NL-220A

5.30

2.50

2.71

1.75

6.50

1.25

0.87

8

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

NL-4400A

18.31

7.00

5.71

4.80

16.85

2.36

2.17

223


Request For Quotation, click


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

1/4”

3/8”

1/2”

3/4”

1”

1-1/2

2”

3”

4”+

NL-220A

Rated Capacity (lb)

60

100

160

220

220

220

220

220

220

To Lift Plate Only

Rated Capty (lb)

60

100

160

220

220

220

220

220

220

Max. Size (s. f.)

6

6

7

7

5

3.5

2.6

1.7

1.3

Max. Length (ft.)

3

3

3

3

3

2

2

2

2

NL-660A

Rated Capacity (lb)

200

300

400

500

660

660

660

660

660

To Lift Plate Only

Rated Capty (lb)

130

220

315

430

500

660

660

660

660

Max. Size (s. f.)

12

14

15

13

12

10.5

7.9

5.2

3.9

Max. Length (ft.)

4

4

4

4

5

5

5

6

6

NL-1320A

Rated Capacity (lb)

No

400

650

900

1,100

1,320

1,320

1,320

1,320

To Lift Plate Only

Rated Cpcty (lb)

No

280

360

620

900

1,320

1,320

1,320

1,320

Max. Size (s. f.)

No

18

17

20

21.4

21

15.7

10.5

7.9

Max. Length (ft.)

No

5

5

5

6

6

6

6

6

NL-2200A

Rated Capacity (lb)

No

No

900

1,200

1,500

2,200

2,200

2,200

2,200

To Lift Plate Only

Rated Cpcty (lb)

No

No

420

900

1,200

1,500

2,000

2,200

2,200

Max. Size (s. f.)

No

No

20

27

28

24

24

17.5

13

Max. Length (ft.)

No

No

6

6

6

6

6

7

7

NL-4400A

Rated Capacity (lb)

No

No

No

1,760

2,400

3,000

4,000

4,400

4,400

To Lift Plate Only

Rated Cpcty (lb)

No

No

No

920

1,500

2,200

2,800

4,000

4,400

Max. Size (s. f.)

No

No

No

28

36

35

33

32

26

Max. Length (ft.)

No

No

No

7

8

8

8

8

8

 

 

 

 

 

 

 

 

 

 

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

Request For Quotation, click

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-220A

Max. Capacity (lb)

50

88

88

88

88

---

---

---

Max. Length (ft)

4

8

8

8

8

---

---

---

NL-660A

Max. Capacity (lb)

107

216

264

264

264

264

---

---

Max. Length (ft)

10

9

7.7

5

3.4

1.9

---

---

NL-1320A

Max. Capacity (lb)

---

264

528

528

528

528

528

---

Max. Length (ft)

---

11

12

8

5.5

3

2

---

NL-2200A

Max. Capacity (lb)

---

336

600

880

880

880

880

880

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-220A Max. Capacity (lb) 20 25 30 30 40 --- --- --- --- --- --- --- --- --- --- ---
Max. Length (ft) 2.6 3.2 4 4 5 --- --- --- --- --- --- --- --- --- --- ---
NL-660A Max. Capacity (lb) 50 70 85 50 100 50 80 132 --- --- --- --- --- --- --- ---
Max. Length (ft) 6.5 6.8 5.7 2.6 3.5 2 2.8 3 --- --- --- --- --- --- --- ---
NL-1320A Max. Capacity (lb) --- --- --- --- 150 --- --- 190 --- --- 190 320 --- 105 130 190
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
Max. Length (ft) --- --- --- --- --- --- --- 4.8 --- --- 3.8 3.9 --- --- --- 3.2

Request For Quotation, click

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%