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Permanent
Magnetic Lifter |
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1.
Construction:
Our permanent magnet lifter has strong magnetic path produced by NdFeB
magnet. On and off of the magnetic path is controlled by turning the
manual handle. The lifters have the features of strong attraction,
smaller volume, lighter weight, powerful lifting effort, easy and
safe to operate, long-period effort and without power supply. They
are used to lift and transport the steel and iron for factories, docks,
ware houses, transportation, etc. |
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No. |
Rated
Lifting Strength (Kg) |
L
(mm) |
B
(mm) |
H
(mm) |
R
(mm) |
Max
Cylindrical Dia. (mm) |
Max
Pull-off Strength (Kg) |
Lifter
Weight (Kg) |
PML-100 |
100 |
84 |
62 |
67 |
142 |
>50 |
350 |
2.6 |
PML-300 |
300 |
154 |
92 |
91 |
167 |
>60 |
1050 |
9.6 |
PML-600L |
600 |
267 |
129 |
92 |
216 |
>70 |
2100 |
21 |
PML-1000L |
1000 |
342 |
142 |
118 |
307 |
>90 |
3500 |
41 |
PML-2000 |
2000 |
368 |
234 |
212 |
451 |
>120 |
7000 |
130 |
PML-3000 |
3000 |
448 |
286 |
264 |
521 |
- |
- |
249 |
PML-6000 |
6000 |
550 |
430 |
360 |
550 |
- |
- |
420 |
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Note:
1. The safe coefficient of magnetic lifter is
3.5.
2. Dimensions can be changed according to customers' needs. |
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3.
Operations
3.1 During operation, you should clear away the components surface
such as rust and burr. The centerline of lifter had better overlap
with the centerline of component. Then place the magnetic lifting
hoist on the face of component, turn the nozzle from "OFF"
to "ON" until "Holding". Make sure that the security
key on the handle is automatically locked, and then start to hoist.
3.2 During lifting and handing components, overloading is forbidden.
Nobody is allowed to pass through under the component held by magnetic
lifter. Components temperature and ambient temperature shall be lower
than 80 ?. No strong vibration and impact.
3.3 When lifting and handling cylindrical components, keeping the
cylindrical surface contacts the vee slot of lifter on two lines,
the actual lifting capacity will generally be 30%-50% of the rated
lifting capacity.
3.4 When lifting and handling operation is finished, press down the
bottom to disengage the security key from the security pin, then turn
the handle from "ON" to "OFF" until 'Release".
The lifter is now in the neutral condition, it can be taken away from
the component. |
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4.
Main factors which influence the lifting capacity
4.1 Influenced by thickness and surface quality of the component.
Before operation, it is necessary to find out the percentage of the
steel thickness-lifting capacity according to the component and capacity
curve. If its surface roughness Ra is less than 6.3 um, the lifter
surface gap will not exist, the lifting capacity will be 100%. If
the surface roughness Ra is above 6.3 um or even worse, the lifter
surface gap should be estimated. Find out the percentage that lifting
capacity of the lifter may reach from the air gap-lifting capacity
curve shown in the performance chart. Combine these two factors and
calculating the lifting capacity that the lifter may reach. The curves
are on the two sides of lifter.
4.2 Influenced by the composition of steel component. After measurement,
if low-carbon steel component is regarded as a reference and the coefficient
of lifting capacity is fixed: the coefficient for medium-carbon steel
is 0.95; the coefficient for high-carbon steel is 0.90; the coefficient
for low-alloy steel is 0.75, and the coefficient for cast iron is
0.50. |
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5.
Maintenance and safety notice:
5.1 While carrying and using permanent magnetic lifter beware of the
bumping and roughness of surface, so as not to influence its property
and life-span. After using, the lifter had better be protected by
oil.
5.2 Please read the operating instruction carefully and know its property
before using the lifter to avoid accident. Please contact our company
for further detail.
5.3 Check the quality of the handle button frequently. Make sure that
the security key can be moved flexibly and the security pin can be
locked firmly.
5.4 When magnetic lifting hoist is not in contact with ferromagnetic
material of component, don't turn the nozzle.
5.5 Maintenance must be strictly according to the instructions by
the professional authorized technical personnel.
5.6 Prohibit modifying the lifter to avoid effecting on its safety. |
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