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PRODUCTS INFORMATION
Power Rare Earth Lift Magnets
These compact, Power rare earth lift magnets are permanent magnets that have on/off functionality, but require no electricity! Not only does this reduce operating costs, but also eliminates the fear of dropping the load being lifted due to power failures.


1. APPLICATION AND FEATURES
Permanent Magnetic Lifters
Model PMQZQ is mainly used for connecting instructions during lifting and handling operation. They can hoist moving iron block, cylindrical and other magnetic material. They are easy for operation, safe in handling, lightly and ingeniously structured. Hence they are widely used as hoisting devices in factories, docks warehouses and transportation industries. By using them, you can improve your working conditions and increase your working efficiency.


2. CONSTRUCTION AND SPECIFICATION
2.1 Construction: MODEL PMQZQ Permanent Magnet Lifter has strong magnetic path produced by NDFEB magnetic materials. On and off the magnetic path is controlled by turning the manual nozzle. There are shackles on the top of Magnetic Lifting Hoist for lifting, a veto slot on the holding face for holding cylindrical component firmly.
2.2 Specifications
Model
Rated lifting strength(kgf)
Cylindrical lifting strength(kgf)
Max pull-off strength(kgf)
L
B
H
R
Operation temperature(°C)
Dead weight(kg)
PMQZQ100
100
50
350
62
92
67
126
<80
3
PMQZQ300
300
150
1050
92
162
91
155
<80
10
PMQZQ600
600
300
2100
122
232
117
196
<80
24
PMQZQ1000
1000
500
3500
176
258
163
285
<80
50
PMQZQ2000
2000
1000
7000
234
378
212
426
<80
125
PMQZQ3000
3000
1500
10500
286
458
261
521
<80
220
PMQZQ6000
6000
3000
21000
430
600
355
180
<80
420


3. OPERATIONS
3.1 During operations, you should clear away the components surface such as rust and burr. The center line 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 “-” to “+” 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 ºC. 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 “+” to “-” until “Release”. The lifter is now in the neutral condition, it can be taken away from the component.


4. Main factors which influence the lifting capacity of Permanent Magnetic Lifter.
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.


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 this liter 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.


NOTE: Please read the Operating Instructions carefully before using this Product. If any doubt remains, please contact our company for further details.
 
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