INDUSTRY COMPONENT

Core Lamination

Core lamination is a precision-stacked assembly of thin steel sheets used in stator/sensor heads to reduce eddy current losses and improve electromagnetic efficiency.

View Specifications

Component Specifications

Definition
Core lamination refers to the process of assembling multiple thin, insulated steel laminations into a solid core structure for electromagnetic applications. In stator/sensor heads, these laminations are precisely stacked and bonded to form the magnetic circuit, minimizing eddy currents that cause energy loss and heat generation. The laminations are typically coated with insulating materials and arranged to optimize magnetic flux paths while maintaining structural integrity under operational stresses.
Working Principle
Core laminations work by reducing eddy currents through electrical insulation between thin steel sheets. When alternating magnetic fields pass through the core, induced currents are confined to individual laminations due to the insulating layers, significantly lowering energy losses compared to solid cores. This improves efficiency, reduces heating, and enhances the performance of electromagnetic devices like motors and sensors.
Materials
Electrical steel (silicon steel, grades like M-19, M-36, or non-oriented grades), typically 0.2mm to 0.5mm thick, with insulation coatings (e.g., C-4, C-5 phosphate, or organic coatings).
Technical Parameters
  • Core Loss < 2.5 W/kg at 1.5T, 50Hz
  • Thickness 0.2mm - 0.5mm
  • Permeability > 1500 H/m
  • Stacking Factor 0.95 - 0.98
  • Flatness Tolerance ±0.05 mm
  • Insulation Resistance > 100 MΩ
Standards
ISO 683-17, IEC 60404-8-7, DIN EN 10106

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Core Lamination.

core lamination stator core sensor head electrical steel laminations eddy current reduction electromagnetic efficiency motor components insulation coatings Core Lamination in Electrical Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Stator/Sensor Head

The stationary component of a position encoder/resolver that houses the sensing elements for detecting rotational position.

View Product Details

Engineering Analysis

Risks & Mitigation
  • Insulation breakdown leading to increased eddy currents
  • Mechanical deformation during stacking
  • Corrosion if coatings are compromised
  • Thermal stress causing delamination
FMEA Triads
Trigger: Poor insulation coating application
Failure: Increased eddy current losses and overheating
Mitigation: Implement quality control for coating thickness and uniformity, use standardized testing (e.g., insulation resistance checks)
Trigger: Inaccurate stacking alignment
Failure: Reduced magnetic efficiency and mechanical instability
Mitigation: Use precision stacking fixtures and automated alignment systems, conduct regular dimensional inspections
Trigger: Material impurities in electrical steel
Failure: Higher core loss and degraded electromagnetic properties
Mitigation: Source materials from certified suppliers, perform material testing per ISO/IEC standards

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Dimensional tolerances per ISO 2768-m, flatness within ±0.05mm, stacking alignment within ±0.1mm
Test Method
Core loss testing per IEC 60404-2, insulation resistance per ASTM D257, dimensional checks via CMM or optical measurement

Buyer Feedback

★★★★☆ 4.8 / 5.0 (11 reviews)

"Impressive build quality. Especially the technical reliability is very stable during long-term operation."

"As a professional in the Electrical Equipment Manufacturing sector, I confirm this Core Lamination meets all ISO standards."

"Standard OEM quality for Electrical Equipment Manufacturing applications. The Core Lamination arrived with full certification."

Related Components

Protective Housing
Protective housing for industrial wireless power transfer modules, providing environmental protection, EMI shielding, and thermal management.
Alignment System
Precision alignment system for industrial wireless power transfer modules ensuring optimal energy coupling efficiency.
Winding Spindle
A precision rotating shaft in transformer winding machines that holds and rotates the coil form during wire winding operations.
Arc Plates
Arc plates are metallic plates within circuit breaker arc chutes that split and cool electrical arcs during interruption to ensure safe circuit disconnection.

Frequently Asked Questions

Why are core laminations used instead of solid cores?

Core laminations reduce eddy current losses by insulating individual steel sheets, which confines induced currents and minimizes energy dissipation as heat, improving efficiency and thermal management.

What materials are commonly used for core laminations?

Electrical steel (silicon steel) is standard, with insulation coatings like phosphate or organic layers to prevent electrical contact between laminations.

How does stacking factor affect core lamination performance?

A higher stacking factor (closer to 1) indicates better material utilization and denser magnetic flux paths, enhancing electromagnetic performance but requiring precise manufacturing to maintain insulation integrity.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Get Quote for Core Lamination

Core Counter/Comparator Circuit