INDUSTRY COMPONENT

Stator/rotor

Core electromagnetic components in actuators converting electrical energy to mechanical motion.

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Component Specifications

Definition
The stator and rotor are fundamental electromagnetic components in electric actuators (cylinders/motors). The stator is the stationary part containing windings that create a rotating magnetic field when energized. The rotor is the rotating part that interacts with this magnetic field, converting electrical energy into mechanical torque and rotational motion. Together they form the electromechanical heart of actuators used for precise positioning, force application, and motion control in industrial systems.
Working Principle
Electromagnetic induction: When alternating current flows through stator windings, it creates a rotating magnetic field. This field induces currents in the rotor (in induction motors) or interacts with permanent magnets (in PM motors), generating torque that causes rotor rotation. The rotational motion is then transferred to the actuator mechanism for linear or rotary output.
Materials
Stator: Electrical steel laminations (M19, M36 grades), copper/aluminum windings (Class H insulation), epoxy resin encapsulation. Rotor: Electrical steel laminations, aluminum/copper bars (squirrel cage), permanent magnets (NdFeB, SmCo for PM motors), steel shaft (AISI 1045, 4140).
Technical Parameters
  • Voltage 24V DC to 690V AC
  • Power Range 0.1-500 kW
  • Speed Range 100-18000 RPM
  • Torque Range 0.1-5000 Nm
  • Cooling Method IC411 (TEFC), IC416 (TEAO)
  • Efficiency Class IE1 to IE5
  • Insulation Class B, F, H
  • Protection Class IP54 to IP67
Standards
ISO 9001, IEC 60034, NEMA MG1, DIN EN 60034

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Stator/rotor.

stator rotor actuator components electric motor parts electromagnetic components industrial actuator maintenance motor stator specifications rotor assembly standards Stator/rotor Stator/rotor in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Actuator (Cylinder/Motor)

A mechanical device that converts energy into motion to drive the gripping mechanism.

View Product Details

Motor or Solenoid

Electromechanical actuator converting electrical energy into mechanical motion or force within an operating mechanism.

View Product Details

Engineering Analysis

Risks & Mitigation
  • Electromagnetic interference
  • Overheating and insulation breakdown
  • Bearing failure leading to rotor-stator contact
  • Demagnetization of PM rotors
  • Vibration-induced mechanical fatigue
FMEA Triads
Trigger: Insufficient cooling or overload
Failure: Stator winding insulation breakdown
Mitigation: Install thermal protection sensors, ensure adequate ventilation, follow rated duty cycles
Trigger: Bearing lubrication failure
Failure: Rotor eccentricity causing stator contact
Mitigation: Implement automatic lubrication systems, monitor vibration levels, use sealed bearings
Trigger: Voltage spikes or phase imbalance
Failure: Insulation puncture or rotor bar cracking
Mitigation: Install surge protectors, use phase monitoring relays, ensure balanced loads

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Air gap: ±0.05mm, Shaft runout: ≤0.02mm, Winding resistance: ±5% of nominal, Balance quality: G2.5 per ISO 1940
Test Method
Hi-pot test (2E+1000V), Megger test (≥100MΩ at 500VDC), Surge test, Vibration analysis, Thermal imaging, Dynamic balancing

Buyer Feedback

★★★★☆ 4.5 / 5.0 (11 reviews)

"Testing the Stator/rotor now; the technical reliability results are within 1% of the laboratory datasheet."

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

"As a professional in the Machinery and Equipment Manufacturing sector, I confirm this Stator/rotor meets all ISO standards."

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Frequently Asked Questions

What's the difference between stator and rotor in actuators?

The stator is the stationary component with windings that create the magnetic field, while the rotor is the rotating part that converts electromagnetic energy into mechanical motion. In actuators, this rotation is typically converted to linear motion through mechanisms like ball screws or gears.

How do I maintain stator/rotor components?

Regular maintenance includes checking winding insulation resistance (megger test), cleaning ventilation paths, monitoring bearing temperatures, checking air gaps, and verifying alignment. For PM rotors, avoid demagnetization by preventing overheating and mechanical shocks.

What causes stator winding failures?

Common causes include thermal overload, voltage spikes, moisture ingress, vibration-induced insulation wear, contamination, and manufacturing defects. Proper cooling, surge protection, and regular inspection can prevent most failures.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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Stator Housing Stator/Winding assembly