Permanent magnetic chuck (also called permanent magnet lifting device, the permanent magnet jack) .
It can be divided into manual type permanent magnet jack and fully automatic permanent magnet jack two kinds, the modern high- performance Nd - Fe - B  NdFeB magnetic material, make it smaller, lighter weight, holding force is stronger, unique magnetic circuit design, the residual magnetism is almost zero.
 It  is widely used in steel lifting handling, smooth installation of mechanical parts and all kinds of mould and handling.Suitable for shipbuilding, engineering machinery, automobile and other industries temperature steel plate lifting, handling operation of hoisting tools, etc.

Advantages :
1, compact structure, easy to operate
2, high performance of  permanent magnetic materials, no demagnetization
3, when it is working,  it needn't electricity or other power .
4,  strong holding force, residual magnetism is almost zero, safe and reliable
5,  high safety coefficient, the maximum pull force is 3.5 times of the rated lifting force .
6,Permanent magnet lifting  save electricity and energy saving, low failure rate.