Stator Laminations
Nickel Alloy Stator Laminations
Ultra-high permeability magnetic cores engineered for low-field, precision-critical applications.
Where Precision Matters More Than Power.
When your application demands ultra-sensitive magnetic response at low flux densities, not peak torque, Nickel Alloy laminations are the material of choice. PML manufactures high-grade Ni-Fe laminations for engineers who cannot afford magnetic compromise.
Engineered for Sensitivity, Not Just Strength
Nickel-Iron (Ni-Fe) alloy laminations are the preferred solution when high permeability and low core losses are the design priorities. Unlike Silicon Steel or Cobalt-Iron alloys which are optimized purely for high saturation, the Ni-Fe family offers unparalleled versatility for specialized applications. From 48% Nickel grades, engineered to balance higher saturation levels with exceptional magnetic responsiveness for specialty motors and transformers, to 80% Nickel grades, designed for extreme sensitivity in environments where the magnetic signal is weak or electrical noise must be minimized. Across all grades, these laminations are built for precision instrumentation, sensors, and rotating machines where superior magnetic control is an engineering requirement.
Key Benefits
Ultra-High Permeability
Responds efficiently to very weak magnetic fields, critical for low-excitation motors and sensing applications.
Low Coercivity
Minimal hysteresis loss, enabling highly efficient operation at low flux densities.
Low Core Losses
Excellent efficiency at both low and high frequencies.
Magnetically Stable
Consistent performance in thermally and mechanically demanding environments.
Scalable Manufacturing
Compatible with high-volume stamping processes without sacrificing dimensional precision.
Grade Flexibility
Available in M19 through M47 grades - matched to your specific loss and flux density requirements.
Technical Specifications
Property | Value |
Thickness | 0.127 mm – 0.35 mm |
Saturation Flux Density | ~0.75 – 1.6 T |
Initial Permeability (μᵢ) | 10,000 – 100,000+ |
Coercivity | < 1 A/m (high-Ni grades) |
Common Alloys | NiFe 48%, NiFe 80%, Supra 50, Supra 50T, Permimphy, 45 Permalloy, 80 Permalloy, HyMu 80 |
The PML Manufacturing Flow
1
Requirement Analysis
Alloy composition, geometry, and application sensitivity review.
2
Process & Tooling
Precision die design for ultra-thin, high-Ni laminations.
3
Stamping & Forming
Precision die design for ultra-thin, high-Ni laminations.
4
Heat Treatment
ASM 2750E compliant stress relief and optimization.
5
Magnetic Testing
BH loop, coercivity, initial permeability, and full magnetic characterization.
6
Traceability & QA
Full traceability from raw material mill to finished goods.
Where Nickel Alloy Performs
1
Aerospace & Defense Sensors
Resolvers, synchros, and precision torque motors where low-signal magnetic response is critical.
2
Medical Devices
Implantable and diagnostic equipment demanding magnetically stable, biocompatible-adjacent soft magnetic cores.
3
Precision Instrumentation
Current transformers, flux gate sensors, and precision measurement devices.
4
Specialized Servo Motors
Low-excitation, high-precision motion control where coercivity and hysteresis must be minimized.
Evaluating Nickel Alloy against Cobalt-Iron or Silicon Steel?
Our engineering team can model the trade-offs for your specific operating conditions.
Request a Quote
Pioneering cutting-edge technology to develop reliable, high-performance magnetic components and engineering solutions.
