Surface Grinder Permanent Magnet Chuck Specifications:
Model: MP-PMF Series
Use: General purpose low profile grinding magnet
Features:
PMF with pole pitch 0.5+1.5 mm
Highest uniform magnetic clamping force up to 120 N/cm²
Coolant and water proof structure
Easy to activate and de-activate
High precision with no residual magnetism
APPLICATION:
● Suitable for grinding and light cutting on surface grinder, EDM and drilling & milling machine.
● The magnetic force is not required by supply power source so no electricity leakage trouble.
● The face plate is made under soldering treatment to prevent water or oil leakage.
● Adjustable spanner is convenient to use and occupied few space only.
When machining and manufacturing, securing the workpieces properly during various operations is very important. These are the tools that cannot be dispensed with for this purpose. They make it possible to fix ferromagnetic materials in place as a reliable and effective clamping method.
Therefore, what are the working principles of magnetic chucks? This question is answered here by looking at their types, advantages, applications, factors to consider when using them, and maintenance and safety. Permanent Magnetic Chuck
What Is Magnetic Chuck?
A magnetic chuck is a device used in machining and manufacturing processes, such as milling, grinding, and turning, to hold ferrous workpieces in place during these operations.
The chuck functions on the principle of magnetism, pulling the workpiece, thus ensuring stability and accuracy while machining it. Because their strengths are different everywhere, a dependent selection of permanent magnetic or electromagnet chucks is available.
How Does A Magnetic Chuck Work?
A magnetic chuck is a device that uses magnetism to hold down ferrous metal workpieces when machined. Here’s how it works:
Magnetic Field Generation: The attraction generated by permanent magnets or electromagnets arranged in a predetermined configuration on the magnetic chuck. Permanent magnetic chucks have unchanging polarity, while electromagnetic ones use wire coils through which electric current flows to create a magnetic field. China Square Electro-Permanent Magnetic Chuck with Standard Density
Attraction of Ferrous Material: From the field, induction results from its polarity when a ferrous workpiece is placed atop the surface of the magnetic chuck. Opposite poles attract each other, creating a holding force that fastens the workpiece tightly onto it.
Stand Precision: During machining operations, the piece remains still without any visible movement or noise because of firm gripping by the magnetic chuck. This promotes accuracy, hence producing fine finished products of high quality. Grinding Electro-permanent Magnetic Chuck With Square Poles
Adjustability (for Electromagnetic Chucks): Electromagnetic chucks allow for adjustment. Depending on the requirement of the machining process, varying electric current supplied to the wires controls the strength of magnetism and the holding force that it exerts. This allows for versatility in holding various sizes and shapes of workpieces.
Release Mechanism: After machining, the magnetic chuck can be deactivated to release the workpiece. For electromagnetic chucks, this involves turning off the electrical current to the coils, while for permanent magnetic chucks, the magnetic field naturally dissipates. Square Grid Electromagnetic Chuck Finepitch
| PMF-0713 | 70 (2.76) | 130 (5.12) | 49 (1.93) | 101 (3.98) | 17 (0.67) | 10 (0.39) | 10 (0.39) | 3 kg / 8 lb |
| PMF-1018 | 100 (3.94) | 175 (6.90) | 49 (1.93) | 140 (5.51) | 17 (0.67) | 10 (0.39) | 10 (0.39) | 7 kg / 15 lb |
| PMF-1020 | 100 (3.94) | 200 (7.87) | 49 (1.93) | 174 (6.85) | 17 (0.67) | 10 (0.39) | 10 (0.39) | 8 kg / 17.6 lb |
| PMF-1025 | 100 (3.94) | 250 (9.84) | 49 (1.93) | 206 (8.11) | 17 (0.67) | 10 (0.39) | 10 (0.39) | 10 kg / 21 lb |
| PMF-1325 | 130 (5.12) | 255 (10.03) | 49 (1.93) | 206 (8.11) | 17 (0.67) | 10 (0.39) | 10 (0.39) | 12 kg / 27 lb |
| PMF-1340 | 130 (5.12) | 400 (15.75) | 49 (1.93) | 357 (14.06) | 17 (0.67) | 10 (0.39) | 10 (0.39) | 20 kg / 44 lb |
| PMF-1426 | 140 (5.52) | 260 (10.24) | 51 (2.01) | 216 (8.50) | 20 (0.79) | 10 (0.39) | 10 (0.39) | 14 kg / 32 lb |
| PMF-1515 | 150 (5.90) | 150 (5.91) | 51 (2.02) | 108 (4.25) | 20 (0.79) | 10 (0.39) | 10 (0.39) | 9 kg / 20 lb |
| PMF-1525 | 150 (5.91) | 250 (9.84) | 51 (2.01) | 206 (8.11) | 20 (0.79) | 10 (0.39) | 10 (0.39) | 15 kg / 33 lb |
| PMF-1530 | 150 (5.91) | 300 (11.81) | 51 (2.01) | 257 (10.12) | 20 (0.79) | 10 (0.39) | 10 (0.39) | 18 kg / 39 lb |
| PMF-1535 | 150 (5.91) | 350 (13.78) | 51 (2.01) | 305 (12.01) | 20 (0.79) | 10 (0.39) | 10 (0.39) | 21 kg / 46 lb |
| PMF-1540 | 150 (5.91) | 400 (15.75) | 51 (2.01) | 357 (14.06) | 20 (0.79) | 10 (0.39) | 10 (0.39) | 24 kg / 53 lb |
| PMF-1545 | 150 (5.91) | 450 (17.72) | 51 (2.01) | 407 (17.34) | 20 (0.79) | 10 (0.39) | 10 (0.39) | 27 kg / 59 lb |
| PMF-2030 | 200 (7.88) | 300 (11.81) | 51 (2.01) | 257 (10.12) | 20 (0.79) | 10 (0.39) | 10 (0.39) | 24 kg / 53 lb |
| PMF-2035 | 200 (7.88) | 350 (13.78) | 51 (2.01) | 305 (12.01) | 20 (0.79) | 10 (0.39) | 10 (0.39) | 28 kg / 61 lb |
| PMF-2040 | 200 (7.88) | 400 (15.75) | 51 (2.01) | 357 (14.06) | 20 (0.79) | 10 (0.39) | 10 (0.39) | 32 kg / 70 lb |
| PMF-2045 | 200 (7.88) | 450 (17.72) | 51 (2.01) | 407 (17.34) | 20 (0.79) | 10 (0.39) | 10 (0.39) | 36 kg / 79 lb |
| PMF-2050 | 200 (7.88) | 500 (19.69) | 51 (2.01) | 454 (17.87) | 20 (0.79) | 10 (0.39) | 10 (0.39) | 40 kg / 88 lb |
| PMF-2060 | 200 (7.88) | 600 (23.62) | 51 (2.01) | 556 (21.89) | 20 (0.79) | 10 (0.39) | 10 (0.39) | 48 kg / 105 lb |
| PMF-2063 | 200 (7.88) | 630 (24.80) | 51 (2.01) | 586 (23.07) | 20 (0.79) | 10 (0.39) | 10 (0.39) | 50 kg / 110 lb |
| PMF-2535 | 250 (9.85) | 350 (13.79) | 51 (2.01) | 305 (12.01) | 20 (0.79) | 10 (0.39) | 10 (0.39) | 33 kg / 73 lb |
| PMF-2540 | 250 (9.85) | 400 (15.76) | 51 (2.01) | 357 (14.06) | 20 (0.79) | 10 (0.39) | 10 (0.39) | 38 kg / 84 lb |
| PMF-2550 | 250 (9.85) | 500 (19.70) | 51 (2.01) | 454 (17.87) | 20 (0.79) | 10 (0.39) | 10 (0.39) | 48 kg / 105 lb |
| PMF-2563 | 250 (9.85) | 630 (24.82) | 51 (2.01) | 586 (23.07) | 24 (0.94) | 10 (0.39) | 10 (0.39) | 60 kg / 132 lb |
| PMF-3040 | 300 (11.82) | 400 (15.76) | 56 (2.20) | 357 (14.06) | 24 (0.94) | 10 (0.39) | 10 (0.39) | 52 kg / 115 lb |
| PMF-3050 | 300 (11.82) | 500 (19.70) | 56 (2.20) | 454 (17.87) | 24 (0.94) | 10 (0.39) | 10 (0.39) | 66 kg / 144 lb |
| PMF-3060 | 300 (11.82) | 600 (23.64) | 56 (2.20) | 556 (21.89) | 24 (0.94) | 10 (0.39) | 10 (0.39) | 79 kg / 173 lb |
| PMF-3063 | 300 (11.82) | 630 (24.82) | 56 (2.20) | 586 (23.07) | 24 (0.94) | 10 (0.39) | 10 (0.39) | 83 kg / 182 lb |
| PMF-4060 | 400 (15.76) | 600 (23.64) | 56 (2.20) | 556 (21.89) | 22 (0.87) | 10 (0.39) | 10 (0.39) | 106 kg / 233 lb |
Unit: mm(in)
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