MPI’s Permanent Magnetic Chucks provide reliable, power-free workholding for ferrous components during grinding, milling, and machining operations. Designed with high holding force and consistent clamping across the entire surface, these chucks enhance precision, reduce setup time, and eliminate the need for mechanical clamps or fixtures. With no external power required, they offer a safe, low-maintenance solution for toolrooms, production environments, and job shops. MPI’s chucks are built for durability, repeatability, and secure holding—even during heavy-duty or fine-finish machining applications.
MPI’s Rare Earth Round Chuck delivers powerful, uniform magnetic holding for circular grinding and turning applications. Its compact profile and high-energy rare earth magnets ensure precision clamping with zero power requirement. Ideal for lathe work, rotary tables, and surface grinding of round parts, it enhances accuracy while reducing setup time and part distortion.
Designed for maximum magnetic holding power, MPI’s Double Rare Earth Round Chuck uses dual magnet circuits to secure ferrous components during heavy grinding or turning. It provides deep, uniform clamping strength—ideal for demanding, high-force machining of circular or ring-shaped parts. Its durable construction ensures stability, repeatability, and consistent performance in tough environments.
MPI’s Double Ceramic Round Chuck combines stable holding power with excellent heat resistance, making it ideal for surface grinding applications. Its ceramic pole design minimizes thermal distortion and wear, while delivering reliable part clamping over time. Perfect for precision grinding where minimal thermal influence is critical to maintaining tolerance and finish.
MPI’s Rare Earth Compact Milling Chuck offers strong, secure magnetic workholding in a low-profile design, ideal for CNC milling and drilling where space is tight. It's rare earth magnet technology ensures high clamping force across the work surface, reducing vibration and improving surface finish while enhancing fixture accessibility and part throughput.
The Rare Earth Surface Grinder Chuck from MPI provides precise, rigid clamping for ferrous workpieces in high-accuracy surface grinding operations. It's rare earth magnets deliver exceptional holding force while maintaining tight part tolerances. Designed for flatness and uniformity, it minimizes part movement, boosting repeatability and finish quality in toolroom and production grinding.
MPI’s Dymax Chuck is engineered for maximum versatility, offering high holding force and flexible pole configurations for flat and round components. It provides a balanced solution for grinding, light milling, and general machining. With no external power required and built-in safety reliability, it’s a trusted all-purpose magnetic chuck for shops of all sizes.
MPI’s PSPM offers the strength of a permanent magnet with the automation of pneumatic switching. Perfect for integration into robotic or automated systems, it provides fast, repeatable clamping and release of ferrous parts. With no residual magnetism and minimal energy use, the PSPM enhances safety, cycle time, and precision in automated workholding.
MPI’s Magnetic Permanent Block provides a simple, rugged solution for securing small ferrous components in grinding, inspection, or light machining tasks. With powerful holding and a compact footprint, it’s ideal for fixture setups, squaring blocks, or parallel clamping. Maintenance-free and portable, it’s a shop essential for quick, repeatable workholding.
Permanent Magnetic Chucks Comparison
Unique Benefits and Considerations
| Permanent Magnetic Chuck | Unique Benefits | Considerations |
|---|---|---|
| Rare Earth Round Chuck | Strong, rare-earth magnets for round parts. Ideal for rotary grinding and turning. Compact and power-free. | Not suitable for rectangular parts. Limited to round or ring-shaped workpieces. |
| Double Rare Earth Round Chuck | Dual magnetic circuits for deeper holding force. High clamping strength for heavy-duty turning and grinding. | Higher cost. Larger size may limit compatibility with smaller machines. |
| Double Ceramic Round Chuck | Heat-resistant ceramic poles. Reduced thermal distortion during grinding. Excellent wear resistance. | Lower magnetic force than rare earth. Best suited for thermal-sensitive jobs. |
| Rare Earth Compact Milling Chuck | High clamping force in a low-profile design. Great for CNC milling in tight setups. Reduces vibration. | Limited to flat workpieces. May require precise setup for maximum performance. |
| Rare Earth Surface Grinder Chuck | Optimized for flatness and accuracy. Excellent holding for fine grinding. Boosts finish quality and tolerance. | Limited to grinding use. Not intended for heavier milling or impact operations. |
| Dymax Permanent Magnetic Chuck | Versatile for flat and round workpieces. Reliable general-purpose use. Durable and easy to use. | May lack specialized features for high-precision or thermal-sensitive applications. |
| Pneumatic Switchable Permanent Magnet (PSPM) | Automated clamping/release with permanent magnetic safety. Ideal for robotics and automation. Zero residual magnetism. | Requires air supply. Higher upfront cost and system integration complexity. |
| Magnetic Permanent Block | Compact, portable, and maintenance-free. Perfect for small part workholding or inspection setups. | Limited clamping range. Best for light-duty or secondary operations. |
Industries, Applications and Regulations
For assistance in selecting the most suitable permanent magnetic chuck for your application or for additional customization options, contact Magnetic Products Inc. today to speak with our team of experts!