Magnetic chucks use magnetic force to hold a workpiece in place while it is being worked on. The magnets work by inducing polarity into the ferrous work material that connects across its north and south poles. When a workpiece is placed across the poles of the magnet, the flux flows into it. The ferrous components have poles that are opposite the polarity of the magnet so they attract each other. Amplifying and controlling this flux is the key to applying magnets in a metalworking operation.
Closing the gap between the workpiece and the magnet increases the attraction or “pull†of the magnet. Smooth surfaced workpieces are more tightly held than rough surfaced. The strength of the magnetic attraction is a function of how much magnetic flux can be induced into the workpiece.
With transverse pole pitch, p:15m, permanent neodymium-magnets, enhanced holding force
Use:
Heavy machining, such as milling and planing.
The dense, concentrated magnetic field enables it to be used for small, medium and large workpieces, including those with rough or uneven surfaces. The magnetic field is without any stray fields, preventing magnetization of
the tool.
Features:
Exceptionally strong neodymium magnetic system. ON-OFF control by means of hand lever. In the OFF position, a weak opposing field eases the removal of the workpiece. The magnets are equipped with longitudinal and transverse stop rails.
Laminations 3 mm brass / 12 mm steel.
Suitable for use with laminated topplates:
Nominal holding force: 150 N/cm2
Magnetic field height: 12 mm
Pole plate wearing limit: 5 mm
Part No. Dimensions in mm Weight in kg Pole pitch
A B C D
PMM1018 108 104 56 126 9.5 12 + 3
PMM1225 250 120 56 196 15 12 + 3
PMM1530 250 150 56 199 20 12 + 3
PMM1535 300 150 56 244 24 12 + 3
PMM1535 350 150 56 289 25 12 + 3
PMM2040 400 200 56 349 35 12 + 3
PMM2050 500 200 56 439 44 12 + 3
PMM2060 600 200 56 511 52 12 + 3
PMM3060 600 300 56 544 67 12 + 3
