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ArmstrongLiftMag™
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Lifting
Magnet containing Neodymium is designed and made for holding, carrying and
releasing flat or round ferrous parts without any electrical power supply.
Lifting magnet attracts ferrous parts by turning handle to “On” position and
releases the part at “Off” position. For more safety, a special device (Lock
Pin) locks the handle and keeps the lifter having lift power when it is at
“On” position.
The
maximum Lifting Value of each model of Lifting Magnet could be achieved while
the steel plate is low carbon mild steel, over a particular thickness, clean
surface free of oil, bur, chips, dirt, paint, etc.
|
| P/N |
Model |
Lifting
Value
(Flat Items)
(Lbs) |
Lifting
Value (Round Items)
(Lbs) |
Test
Load
(Lbs) |
L
(in) |
W
(in)
|
H
(in) |
Handle
(in) |
Weight
(Lbs) |
Request
For
Quote |
| 81102 |
NL-220 |
220 |
88 |
660 |
3.62 |
2.44 |
2.63 |
4.94 |
7 |
 |
| 81106 |
NL-660 |
660 |
264 |
1,980 |
6.38 |
3.62 |
3.58 |
6.10 |
22 |
|
| 81113 |
NL-1320 |
1,320 |
528 |
3,960 |
9.03 |
4.80 |
4.60 |
7.72 |
53 |
|
| 81122 |
NL-2200 |
2,200 |
880 |
6,600 |
10.6 |
6.93 |
6.41 |
11.22 |
110 |
|
| 81144 |
NL-4400 |
4,400 |
Not
recommended |
13,200 |
15.3 |
9.21 |
8.35 |
16.77 |
275 |
|
| 81166 |
NL-6600 |
6,600 |
Not
recommended |
19,800 |
18.03 |
11.26 |
10.28 |
20.51 |
485 |
|
| 81192 |
NL-13200 |
13,200 |
Not
recommended |
39,600 |
23.62 |
16.93 |
13.98 |
7.09 |
925 |
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1) Actual Lift Value
The lift value of Lifting Magnet is affected and reduced by the following factors in all actual
applications:
Thickness
To
lift mild steel plate, refer to the following chart to estimate Lift Value:
NL-6600
NL-4400
NL-2200
NL-1320
NL-660
NL-220 |
 |
3-1/2" |
| 3" |
| 2-1/2" |
| 2" |
| 1-1/2" |
| 1" |
| 1/2" |
| 0 |
| 100% |
75% |
50% |
25% |
0 |
| Model |
Percentage of Rated Lift
Value |
Thickness
of Steel Plate to be lifted. |
Air Gap
If
there is an Air Gap between Lifting Magnet and steel load produced by paint, dirt, roughness or uneven surface of a
load, refer to the following chart for Lift Value:
NL-6600
NL-440
NL-2200 NL-1320/660/220
 |
0.045" |
| 0.040" |
| 0.035" |
| 0.030" |
| 0.025" |
| 0.020" |
| 0.015" |
| 0.010" |
| 0.005" |
| 0 |
| 100% |
75% |
50% |
25% |
0 |
|
Percentage of Rated Lift
Value |
Air
Gap between Lift Magnet Pole and Steel Plate |
Carbon
composition
If lift high Carbon steel, the lift value will be less 30%. If lifting cast
iron, lift value will be less 50%.
Round bar or pipe
Round bar must contacts the V shape slot at the lifting magnet bottom with two lines and
actual lift value will only be 40% approximately of that for plate.
For lifting pipe, its thickness should also counts. The actual lift value
is also affected by the diameter of the round load.
Sheet
Large but thin steel sheet can be bended in arc profile and then peeled off
when lifted, even though it is light. When lifting a sheet from a stack,
magnetic flux may penetrate through the sheet and clings lower pieces. This is
an unsafe condition.
2)
Applications Recommended and Not Recommended:
Armstrong
Lift TM
is the
professional solution to high efficient handling ferrous materials indoor, such
as steel plate, forgings, dies and similar parts. But it is not recommended to
lift a thin steel plate. They are widely used in machine shops, warehouses,
production lines and shipping areas for fast loading, and unloading heavy steel
items.
3)
Operation:
Clean up the lifting magnet bottom and the
surface of the steel load to be lift, because rust, burr, paint or dirt could
reduce lifting power a lot.
Carefully place lifter on the steel
load without any impact. Centerline of the Lifting Magnet should overlap with weight
centerline of the steel load.
Press the button at top of the handle
and turn it from “off” position to “on” position until a “safety
Key” of the handle passes a “Lock Pin” on the lifter body. Thus the handle
has been locked at “On” position by the Lock Pin, keeping the lifter having
attraction power to the steel load.
Slowly hoist and carry your steel load
to destination.
After settling the steel load at
destination, press the button on top of the handle and turn the handle back to
“off” position to release the steel load.
4)
Safety:
Nobody is allowed to stand or pass through under Lifting Magnet, which is holding
load.
Make an extra margin of safety, because the following factors would reduce
lifting power greatly: Air gap, configuration of loads, such as thickness of
steel plate and diameter of round steel rod, surface roughness of metal item,
rust, dirt as well as Carbon content of the metal item.
No strong vibration and impact to the lifting magnets while holding.
Don’t operate the lifting magnet at ambient temperature over 148°F.
5)
Maintenance:
Don’t turn the handle
without steel load under the bottom of the lifting magnet.
Dropping, heating and
shocking could cause permanent damage to the lifting magnet.
Protect
magnetic poles from rusting with oil after use. Store lifting magnet in an area free of
metal chips, grit and moisture.
Inspect
mechanical condition of lifting magnet and magnetic pole surfaces prior to use. The
surfaces must be clean and flat without any damages.
Check handle to make sure the Safety Key moves smoothly by pressing the button
on top of the handle while the lifting magnet is placed on load.
Annual
calibration check is recommended.
Copyright © 2000 – 2003
Armstrong Magnetics – All Rights Reserved.
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