Circular Permanent Magnetic Chucks with Neodymium-iron-boron Magnets Specifications:
Model: MP-NF Series
Use:
For hard to hold parts requiring exceptionally high power, such as high alloyed tool steels and materials containing cobalt.
Features:
Aluminium housing, pole plate made from tool steel. Extremely high clamping force through neodymium-iron-boron magnets
Available with flange on request
NF with pole pitch 2 + 4 mm
Max. uniform magnetic clamping force up to 180N/cm²
Best for small and thin workpiece
Magnetic field height : 4 mm
Polar plate re-grind of 3mm
High precision with no residual magnetism
In electrical discharge machining, the smallest tolerances often determine the quality of highly complex components that are already in a late stage of production. Conventional mechanical clamping devices often fail to meet these requirements. They exert point pressure, which can lead to micro-deformation or internal stress. This risk must be consistently avoided, especially with high-value workpieces.
Magnetic clamping solutions from US eliminate these sources of error through a very uniform force distribution over the entire contact surface. They combine maximum holding force with unrestricted accessibility. The result: excellent surface quality and minimized distortion for significantly less scrap in valuable components. Whether die-sinking EDM or holding small, complex parts: our permanent magnet technology ensures reliable clamping and constant manufacturing quality for demanding industries.
MAGNETIC CHUCKS & CLAMPING SOLUTIONS
Clamping in seconds → drastically reduced setup times for higher output
Unobstructed access → 100% clearance for machining without interference from clamping devices
Absolute stability → secure hold without slipping for maximum process reliability
Minimal operating costs → high energy savings thanks to smart magnetic technology
Increased productivity → Premium quality engineered for higher throughput
Drastic Reduction of Non-Productive Time in the EDM Process
In electrical discharge machining, especially when processing complex individual parts, setup time is a critical cost factor. Our magnetic clamping technology fixes and aligns workpieces quickly and reproducibly. Selective clamping forces do not affect sensitive geometries. Unhindered access to the component simplifies EDM programming and creates the ideal conditions for long, autonomous machining cycles in unmanned production.
Highest Surface Quality Without Mechanical Influences
The full-surface and homogeneous force distribution of our clamping plates stabilizes the workpiece during the EDM process. As a result, the spark gap remains constant and allows for a uniform surface finish even during the finest EDM finishing operations. Our magnetic clamping technology avoids localized clamping forces and reduces mechanical influences on the workpiece – for a precise end result. Permanent Magnetic Chuck for EDM
Thermal Stability for Your EDM Applications
Our permanent magnetic systems are optimized for use in dielectrics and offer the highest degree of process reliability. Since the clamping force is generated purely mechanically by high-quality permanent magnets, no current-related self-heating occurs in the clamping device. This minimizes thermally induced influences and reduces expansion in the workpiece. This ensures maximum dimensional accuracy even over long machining times. Permanent Magnetic Chuck Clamping Device for Holding Workpieces
| NF-100 | 100 (3.94) | 65 (2.56) | 48 (1.89) | – | – | 74 (2.91) | – | – | 70 (2.76) | 90 (3.54) | 4 | 6 | 4 | 2.2 kg / 4.8 lb |
| NF-125 | 125 (4.92) | 65 (2.56) | 54 (2.13) | 88 (3.46) | – | 67 (2.64) | 98 (3.86) | – | 95 (3.74） | 110 (4.33) | 4 | 8 | 4 | 3.4 kg / 7.5 lb |
| NF-160 | 160 (6.30) | 65 (2.56) | 54 (2.13) | 104 (4.09) | 124 (4.88) | 62 (2.44) | 98 (3.86) | 122 (4.80) | 125 (4.92) | 140 (5.51) | 4 | 10 | 4 | 5.6 kg / 12.3 lb |
| NF-180 | 180 (7.09) | 65 (2.56) | 64 (2.59) | 104 (4.09) | 124 (4.88) | 62 (2.44) | 98 (3.86) | 134 (5.28) | 125 (4.92) | 160 (6.30) | 4 | 10 | 4 | 7.1 kg / 15.6 lb |
| NF-200 | 200 (7.87) | 65 (2.56) | 74 (2.91) | 104 (4.09) | 134 (5.28) | 73 (2.87) | 110 (4.33) | 158 (6.22) | 125 (4.92) | 180 (5.51) | 4 | 10 | 4 | 8.7 kg / 19.2 lb |
Unit: mm(in)
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