Structured Manufacturing Data (2026)

Stator

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Stator used in the Electrical Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Stator is characterized by the integration of Stator Core and Stator Windings. In industrial production environments, manufacturers listed on CNFX commonly emphasize Electrical steel laminations construction to support stable, high-cycle operation across diverse manufacturing scenarios.

The stationary part of an electric motor that generates a rotating magnetic field.

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Product Specifications

Technical details and manufacturing context for Stator

Definition

In a spindle motor, the stator is the stationary outer component that contains the windings through which electrical current flows to create a rotating magnetic field, which in turn drives the rotation of the rotor (attached to the spindle). It is the primary electromagnetic component responsible for motor torque generation.

Working Principle

When alternating current (AC) is applied to the stator windings, it creates a rotating magnetic field. This field interacts with the magnetic field of the rotor, inducing a force (Lorentz force) that causes the rotor, and consequently the motor spindle, to rotate.

Common Materials

Electrical steel laminations, Copper wire (windings), Insulation materials, Structural steel or aluminum (housing/frame)

Technical Parameters

Outer diameter (OD) and inner diameter (ID) of the stator core, critical for fitting within the motor housing and defining the air gap with the rotor. (mm) Customizable

Components / BOM

Stator Core Part
Provides a low-reluctance path for the magnetic flux. Made of laminated electrical steel to reduce eddy current losses.

Material: Electrical steel laminations
Stator Windings Part
Coils of insulated copper wire placed in the slots of the stator core. When energized, they create the electromagnetic field.

Material: Copper wire, insulation
Stator Frame/Housing Part
The mechanical structure that holds the stator core and windings, provides mounting points, and often acts as a heat sink.

Material: Cast iron, aluminum, or structural steel
Insulation System
Electrical insulation between windings and between windings and the stator core to prevent short circuits.

Material: Polymer films, varnishes, slot liners

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Stator.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Spindle Motor

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Motor

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Motor/Solenoid

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Servo Actuator / Linear Motor

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Drive Motor (Servo/Stepper)

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Motor Assembly

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Feed Motor

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High-Vacuum Pump

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Stepper Motor

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Servo/Stepper Motor

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Industrial Ecosystem & Supply Chain Structure

Complementary Systems

Downstream Applications

Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits

pressure:	Atmospheric (enclosure-dependent)
other spec:	Max voltage: 15kV typical, Frequency: 50/60Hz standard
temperature:	-40°C to 180°C (Class H insulation typical)

Media Compatibility

✓ Clean dry air ✓ Inert gas atmospheres ✓ Non-conductive cooling fluids

Unsuitable: Abrasive particulate-laden environments

Sizing Data Required

Motor power rating (kW/HP)
Operating voltage and frequency
Required torque/speed characteristics

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause

Insulation breakdown

Cause: Thermal degradation from overheating, contamination by moisture/oil, or electrical stress from voltage spikes

Winding short circuit

Cause: Mechanical vibration leading to abrasion, loose connections causing arcing, or manufacturing defects in winding insulation

Maintenance Indicators

Excessive vibration or audible humming indicating loose windings or bearing issues
Burning smell, smoke, or visible discoloration/charring on stator windings

Engineering Tips

Implement regular infrared thermography scans to detect hot spots and prevent thermal degradation before failure occurs
Maintain proper alignment and balance of connected rotating equipment to minimize mechanical stress on stator windings

Compliance & Manufacturing Standards

Reference Standards

ISO 1940-1:2003 (Balance quality requirements for rotors in a constant rigid state) IEC 60034-1:2022 (Rotating electrical machines - Part 1: Rating and performance) DIN 42950:1988 (Dimensions of electrical machinery - Frame sizes 56 to 400 and flange sizes 65 to 740)

Manufacturing Precision

Bore diameter: +/-0.02 mm
Stack length: +/-0.1 mm

Quality Inspection

High-potential (hipot) test for insulation integrity
Dimensional verification using coordinate measuring machine (CMM)

Factories Producing Stator

Manufacturer profiles with relevant production capability in China

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation

4/5

Manufacturing capability

4/5

Inspection readiness

5/5

Supplier transparency

3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What materials are used in stator construction?

Stators are typically constructed from electrical steel laminations for the core, copper wire for windings, insulation materials, and structural steel or aluminum for the housing/frame.

What is the function of a stator in an electric motor?

The stator is the stationary part of an electric motor that generates a rotating magnetic field when energized, which interacts with the rotor to produce mechanical rotation.

What are the main components of a stator assembly?

The main components include the stator core (made of laminated electrical steel), stator windings (copper wire coils), insulation system, and stator frame/housing for structural support.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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