You are here: Home » Products » Stator and Rotor

Motor Stator and Rotor Solutions for Automation & Pumps Applications

Motor stator and rotor assemblies are precision electromagnetic components that define torque output, efficiency, and reliability in electric motors, pumps, and compressor systems.

Motor stator and rotor assemblies are the functional core of electric drive systems, widely used in BLDC motors, compressor motors, water pumps, and oil pumps.

They are available in distributed and concentrated winding designs and multiple outer diameters, supporting different voltage platforms and displacement ranges for OEM integration.

Stator and Rotor Product Overview

A stator & rotor assembly consists of the laminated stator core with copper windings and the matching rotor structure.

Instead of a complete motor, these assemblies are supplied as core electromagnetic components to be integrated into customer-specific housings, shafts, and systems.

They are commonly used when:

  • The motor housing is integrated into the system
  • Pumps or compressors require customized magnetic structures
  • OEMs need control over thermal paths and mechanical interfaces
85mm TT85O.D. concentrated winding stator and rotor
We classify our stator winding into Distributed Winding and Concentrated Winding

Distributed windings place coils across multiple slots, offering:

  • Smooth magnetic flux distribution
  • Lower harmonic distortion
  • Reduced torque ripple
  • Stable performance in continuous-duty operation

Concentrated windings wrap coils around individual teeth, enabling:

  • Compact structure
  • High torque density
  • Shorter end turns and improved copper utilization
  • Simplified manufacturing

Stator and Rotor by Outer Diameter

We classify our stator and rotor set primarily by outer diameter, which is the most common and efficient way for engineers to narrow down selection.Each outer diameter category includes multiple series and sub-models with different power ratings and winding options.
Beyond standard models, Modar Motor also provides OEM and ODM services for stator and rotor.
85mm stator and rotor
 
85mm Distributed Winding Assemblies
  
Designed for high-stability, continuous-duty motor systems
 
85mm TT85O.D. concentrated winding stator and rotor
 
85mm Concentrated Winding Assemblies
 
Compact high-torque solutions for integrated drives
 
85mm J85O.D. concentrated winding stator and rotor
 
94mm / 96mm / 98mm Concentrated Assemblies
 
Optimized for medium-to-high output compressor and pump motors
100-112mm concentrated winding stator and rotor
 
100mm / 105mm / 112mm Concentrated Assemblies
 
Large-diameter assemblies for high-power industrial and automotive systems
85mm stator and rotor

85mm Distributed Winding Assemblies

Rated voltage options: 0-800V etc.
Rated speed: 0-8600rpm(customized)
Rated Torque: 0-7.2N.m(customized)
Suitable compressor displacement for reference: 12CC,18CC,20CC,28CC,34CC
Standard Model Parameters
Model Rated
Power		 Rated
Voltage		 Rated
Current		 Rated
Torque		 Rated Speed Efficiency
F85-27 1.60kw 300V 15Arms 2.5Nm 10000rpm 90.02%
F85-45 1.80kw 320V 7.0Arms 4.0Nm 4500rpm 90.05%
F85-50 3.20kw 350V 11Arms 5.4Nm 6000rpm 91.20%
F85-54 4.25kw 400V 16Arms 5.2Nm 8000rpm 91.80%
F85-60 5.02kw 400V 18Arms 6.0Nm 8000rpm 91.80%
85mm TT85O.D. concentrated winding stator and rotor

85mm Concentrated Winding Assemblies

Rated voltage options: 0-800V etc.
Rated speed: 0-8600rpm(customized)
Rated Torque: 0-7.2N.m(customized)
Suitable compressor displacement for reference: 12CC,18CC,20CC,28CC,34CC
Standard Model Parameters
Model Rated
Power		 Rated
Voltage		 Rated
Current		 Rated
Torque		 Rated Speed Efficiency
J85-45 1.80kw 320V 7.0Arms 4.0Nm 4500rpm 90.05%
J85-50 3.20kw 350V 11Arms 5.4Nm 6000rpm 91.20%
J85-54 4.25kw 400V 16Arms 5.2Nm 8000rpm 91.80%
J85-60 5.02kw 400V 18Arms 6.0Nm 8000rpm 91.80%
85mm J85O.D. concentrated winding stator and rotor

94mm / 96mm / 98mm Concentrated Assemblies

Rated voltage options: 0-800V etc.
Rated speed: 0-12000rpm(customized)
Rated Torque: 0-11N.m(customized)
Suitable compressor displacement for reference: 16CC,18CC,28CC,34CC,40CC,45CC,50CC
94mm concentrated winding stator Assemblies
Standard Parameters
Model Rated
Power		 Rated
Voltage		 Rated
Current		 Rated
Torque		 Rated Speed Efficiency
94-20(ATC) 1.25kw 108V 13Arms 3.0Nm 4000rpm 90.00%
94-30(ATC) 3.25kw 320V 12Arms 5.2Nm 6000rpm 91.00%
94-37(ATC) 4.50kw 350V 11Arms 5.4Nm 8000rpm 92.00%
94-45(ATC) 6.05kw 400V 16Arms 7.2Nm 8000rpm 92.80%
94-50(ATC) 7.21kw 600V 15Arms 3.0Nm 4000rpm 93.60%
 
96mm concentrated winding stator Assemblies
Standard Model Parameters
Model Rated
Power		 Rated
Voltage		 Rated
Current		 Rated
Torque		 Rated Speed Efficiency
96-20 1.25kw 108V 13Arms 3.0Nm 4000rpm 90.00%
96-30 3.25kw 320V 12Arms 5.2Nm 6000rpm 91.00%
96-37 4.50kw 350V 11Arms 5.4Nm 8000rpm 92.00%
96-45 6.05kw 400V 16Arms 7.2Nm 8000rpm 92.80%
96-50 7.21kw 600V 15Arms 3.0Nm 4000rpm 93.60%
 
98mm concentrated winding stator Assemblies
Standard Model Parameters
Model Rated
Power		 Rated
Voltage		 Rated
Current		 Rated
Torque		 Rated Speed Efficiency
98-20 1.25kw 108V 13Arms 3.0Nm 4000rpm 90.59%
98-27 3.25kw 320V 12Arms 5.2Nm 6000rpm 91.83%
98-34 4.50kw 350V 11Arms 5.4Nm 8000rpm 92.09%
98-45 6.05kw 400V 16Arms 7.2Nm 8000rpm 92.96%
98-50 7.21kw 600V 15Arms 3.0Nm 4000rpm 94.02%
100-112mm concentrated winding stator and rotor

100mm / 105mm / 112mm Concentrated Assemblies

Rated voltage options: 0-800V etc.
Rated speed: 0-12000rpm(customized)
Rated Torque: 0-15N.m(customized)
Suitable compressor displacement for reference: 18CC,28CC,34CC,40CC,45CC,50CC,66CC
100mm concentrated winding stator Assemblies
Standard Model Parameters
Model Rated
Power		 Rated
Voltage		 Rated
Current		 Rated
Torque		 Rated Speed Efficiency
100-30 3.25kw 320V 12Arms 5.2Nm 6000rpm 91.80%
100-35 4.50kw 350V 11Arms 5.4Nm 8000rpm 92.90%
100-40 6.05kw 400V 16Arms 7.2Nm 8000rpm 93.10%
100-45 7.21kw 600V 15Arms 8.5Nm 8000rpm 94.20%
100-50 9.45kw 600V 18.6Arms 15.0Nm 4000rpm 94.80%
 
105mm concentrated winding stator Assemblies
Standard Model Parameters
Model Rated
Power		 Rated
Voltage		 Rated
Current		 Rated
Torque		 Rated Speed Efficiency
100-30 3.25kw 320V 12Arms 5.2Nm 6000rpm 90.80%
100-35 4.50kw 350V 11Arms 5.4Nm 8000rpm 91.90%
100-40 6.05kw 400V 16Arms 7.2Nm 8000rpm 92.10%
100-45 7.21kw 600V 15Arms 8.5Nm 8000rpm 93.20%
100-50 9.45kw 600V 18.6Arms 15.0Nm 4000rpm 93.80%
 
112mm concentrated winding stator Assemblies
Standard Model Parameter
Model Rated
Power		 Rated
Voltage		 Rated
Current		 Rated
Torque		 Rated Speed Efficiency
112-27 3.25kw 320V 12Arms 5.2Nm 6000rpm 91.20%
112-31 4.50kw 350V 11Arms 5.4Nm 8000rpm 91.40%
112-35 6.05kw 400V 16Arms 7.2Nm 8000rpm 92.21%
112-40 7.21kw 600V 15Arms 8.5Nm 8000rpm 93.19%
112-55 9.45kw 600V 18.6Arms 15.0Nm 4000rpm 93.21%
 

Stator and Rotor by Typical Application

Motor stator and rotor assemblies are used across multiple industries where custom integration and performance optimization are required.
Key integration highlights:Optimized for specific CC displacement ranges (placeholder),Voltage and winding customization available,Suitable for long-term OEM production.
Automotive & Electric Compressors

Automotive & Electric Compressors

  • Electric air-conditioning compressors
  • Thermal management systems
  • Voltage platforms such as 320V / 400V class systems
  • Compatible with specific displacement (CC) ranges (to be specified)
Water Pumps & Oil Pumps

Water Pumps & Oil Pumps

  • Electric water pumps
  • Lubrication and oil circulation systems
  • Matching different CC displacement requirements
  • Designed for long service life and stable efficiency
   
 
Industrial Motor Systems

Industrial Motor Systems

  • Integrated BLDC motor platforms
  • Custom housings and shafts
  • High-duty cycle industrial drives
 
 
 
 
 
 
oem

OEM Integrated Drive Projects

  • Motor-pump integrated systems
  • Compressor module development
  • Custom electromagnetic solutions
 
 
 
 
 

Custom Stator and Rotor Solutions for OEM Customers

Beyond standard models, Modar Motor provides OEM and ODM services for stator and rotor sets, including:
  • 1
    ​​​​​​​

    Parameter such as voltage, speed, torque, power customization


  • 2
    ​​​​​​​

    Safety,balance weight and adaptation


  • 3
    ​​​​​​​

    Seal optimization for
    medical and commercia
    devices


  • 4
    ​​​​​​​

    Support for small-batct
    prototyping and mass
    production


FAQ – Stator and Rotor Assemblies

Work With Modar for Smarter Motor Solutions

Unlock better performance, faster development, and dependable results — backed by engineering expertise that helps your products stand out in the market.

PRODUCT

ABOUT US

LINKS

CONTACT US

 Mobile: +86-13912315681
  Wechat: 008613912315681
 Email: anna@modarmotor.com
 WhatsAPP: 008613912315681
Copyright © 2026 Powered by Best Motor Manufacturers - Modarmotor