For decades, the global high-end permalloy component market was dominated by overseas manufacturers, but today, with the synergy of the domestic substitution strategy and advanced precision machining technology, China’s permalloy parts manufacturing is entering a new era of rapid development. The combination of high-quality permalloy materials and Swiss-type CNC machining has created precision components that fully meet global high-end demand, marking a significant breakthrough in China’s high-end material processing field.
Permalloy, a nickel-iron based soft magnetic alloy, is renowned for its ultra-high initial permeability, extremely low coercive force, and near-zero magnetostriction coefficient. These outstanding properties make it an ideal material for precision electromagnetic components used in weak magnetic field environments, such as high-precision current transformers, magnetic shielding covers, and sensor cores, which are critical for fields like 5G communication, new energy vehicles, medical imaging equipment, and aerospace navigation systems.
Swiss-type CNC lathes, also called sliding headstock lathes, are perfectly suited for processing permalloy components. With the support of guide bushings, they can achieve dimensional accuracy of ±0.002mm and roundness of ≤0.001mm, effectively avoiding deformation during processing of this soft and sticky material. Multi-axis linkage allows turning, milling, drilling, and tapping to be completed in one setup, ensuring high consistency and efficiency for mass production of small, complex permalloy parts.
Our permalloy components processed by Swiss-type lathes are made from vacuum-melted high-purity permalloy, with oxygen content controlled below 5ppm to ensure stable magnetic properties. After precision machining and hydrogen protection annealing, the initial permeability can reach over 30,000mH/m, and the coercive force is lower than 1.6A/m, fully meeting international standards. We support custom processing according to customer drawings, covering non-standard shaft parts, magnetic core brackets, and shielding rings with diameters from 1mm to 38mm.
These precision permalloy parts are widely used in multiple high-end fields: for 5G base station power modules, they help improve high-frequency inductance density; for new energy vehicle onboard chargers, they reduce volume by 40% while increasing efficiency to 98.5%; for MRI equipment, they lower external magnetic interference to below 0.01μT to ensure imaging accuracy; they are also used in aerospace navigation systems and high-precision industrial sensors, playing a key role in improving equipment performance.
With the continuous improvement of domestic permalloy smelting and precision machining technology, Chinese manufacturers have broken the technical barriers of foreign companies. Our products not only match international advanced levels in performance, but also offer more competitive prices and shorter delivery cycles. We are committed to providing global customers with high-quality permalloy precision machining solutions, empowering the development of high-end manufacturing in various industries.