High-Precision Machined Plates for Resistive Electromagnets
Bitter plates are the key structural components used in high-field resistive electromagnets, which are specialized magnet systems capable of generating extremely strong and continuous magnetic fields beyond the limits of conventional wound-coil designs.
Bitter electromagnets are widely used in advanced research fields such as materials science, high-field physics, solid-state studies, magnetic resonance, and industrial systems that require stable magnetic fields exceeding what superconducting or traditional copper wire coils can reliably produce.
The Bitter plates are made from copper or Cu-Ag-Alloy sheet metal with lots of cooling holes in it, which are stacked into a helix, then put voltage across the coil. High currents flow through the coil, typically about 40,000 amps
Different from the traditional punched process, Walthy makes these plates with high end laser process, which achieves high precision, minimum deformation and smooth sidewall quality. These plates are demonstrated in the latest strong field resistive magnets.
Advanced Manufacturing: Why It Matters
Traditional punched-hole processes can introduce significant deformation, surface irregularities, and dimensional instabilities that degrade performance in high-precision magnet systems.
At Walthy Precision, we apply high-end laser machining technology to fabricate Bitter plates with:
- Exceptional dimensional precision
- Minimal material deformation
- Smooth, burr-free cooling channels
- Accurate plate thickness and contour control
This level of precision supports reliable magnetic field generation and helps reduce assembly stresses in coil stacks.
Walthy’s Capabilities
As a precision contract manufacturer, Walthy Precision specializes in micro machining solutions across a wide range of materials. For Bitter plates, we offer:
✔ Custom plate design consultation
✔ Precision laser machining of cooling patterns and contours
✔ High-accuracy fabrication from copper and Cu-Ag alloys
✔ Fast turnaround from prototype to production
✔ Quality control and traceable manufacturing records
Whether your application is research-grade magnet systems or specialized industrial equipment, our precision manufacturing expertise ensures that each plate meets stringent performance requirements.
