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22mm Slotless Brushless Motor for Compact Industrial Systems

Modar'sSlotlessBrushlessDCMotorscanavoidthepulsationofairgapmagneticinductioncausedby unevenmagnetic resistance in the teeth.
It can eliminate the pulse loss in the armature core and the surface loss on the main pole surface.
Slotless Brushless DC Motor has high durability, low electrical noise and high efficiency. Maximum efficiency of motor reaches 91% and this motor is suitable for the servo system which needs quick movement and high power.

  • 22ZWWC48/22ZWWC64-1SZ

  • Modar Motor

  • 22mm

  • 38.24-100W

  • 20-25mN.m

  • 18-48V

  • 100% pure copper

  • 2

  • about 30 days

Availability:
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22mm Slotless Brushless DC Motor – Product Overview


The 22mm slotless brushless dc motor represents a step into higher torque and power capability while retaining excellent smoothness and control precision.
22mm slotless brushless dc motor is particularly suitable for compact industrial applications where performance margins matter but space remains limited.


slotless brushless dc motor


Key Features

  • Higher torque capacity than micro slotless motors

  • Smooth and stable torque output

  • Compact design for industrial assemblies

  • Excellent speed control performance

  • Custom voltage and winding options

  • Designed for extended duty cycles





Typical Applications of 22mm Slotless Brushless DC Motor


22mm slotless brushless dc motor is ideal for compact yet demanding motion systems.


Typical uses include:

  • Compact industrial actuators

  • Robotic auxiliary joints

  • Precision pumps and fluid control systems

  • Automated inspection equipment


Application Highlights

  • Stable performance under continuous load

  • Improved thermal robustness

  • Reduced system vibration and noise

  • Excellent compatibility with industrial BLDC drives





Technical Specifications of 22mm Slotless Brushless DC Motor


The following technical data applies to the 22mm slotless brushless DC motor.

Electrical Parameters

  • Rated voltage options: 18-48V.

  • Rated speed: 18200-49600rpm(customized)

  • Rated Torque: 20-25mN.m(customized)

  • Output power: 38.24-100W(customized)

Optional Configurations

  • Hall sensors or encoder feedback

  • Customized shaft or connector types

  • Cable or terminal variations


Slotless motor.pdf

     

 Motor Characteristics
Motor part number
  22ZWWC48 22ZWWC64-1SZ
Pole pairs - 1  1  1  1  2  1 
Terminal resistance,
Phase-Phase		 Ω 0.26  0.3  0.57  1  0.94  0.63 
Terminal inductance,
Phase-Phase		 mH 0.018  0.027  0.06  0.11  0.057  0.061 
Winding connection
method		 - Star
connection		 Star
connection		 Star
connection		 Star
connection		 Star
connection		 Star
connection
Insulation class - B B B B B B
Duty type - S2 S2 S2 S2 S1 S2
Feedback method - Hall sensor Hall sensor Hall sensor Hall sensor Hall sensor Hall sensor
Commutation angle - 120° 120° 120° 120° 120° 120°
Insulation strength
(Withstand voltage)		 -    500VAC/1KHz/1mA/1s
Insulation resistance - 100MΩ/ 500VDC
Weight g 110  110  110  110  110  140 
Rated voltage V 18  24  36  48  24  24 
Rated power W 83  100  100  100  53  38.24 
Rated torque mN·m 20  20  20  20  25  20 
Rated speed RPM 40000  49000  47400  49600  20100  18200 
Rated current A 7.95  4.68  3.12  2.29  3  1.86 
No load speed RPM 50000  55000  53000  54000  25700  19300 
No load current A 0.3  0.4  0.32  0.14  0.18  0.126 
Motor efficiency % 87  89  89  91  81  89.7 
Noise (Ambient noise
20dB, test distance 1m)		 dB <50 <50 <50 <50 <50 <50
Thermal Resistance
(No-load)		 K/W 0.38  0.58  0.51  0.42  1.12  -
Thermal Time
Constant (No-load)		 S 840  600  900  1200  620  -
Ambient temperature ℃ 21.4  22  24.7  21.1  23.3  22.3 
Max winding
temperature (No-load)		 ℃ 52.7  80  75.5  70.5  82  -
Torque constant mN·m/A 2.52  4.27  6.41  8.74  8.33  11.87 
Back-EMF constant -
peak value		 V/Krpm 0.37  0.63  0.95  1.29  1.23  1.758 
Back-EMF constant -
effective value		 V/Krpm 0.26  0.45  0.67  0.91  0.87  1.24 
Peak torque mN·m 116.11  341.76  404.72  419.33  212.77  320 
Peak current A 46  80  63  48  26  33.5 
Rotor inertia g·cm² 1.15  1.15  1.15  1.15  1.15  3 
Mechanical time
constant		 ms 4.72  1.89  1.60  1.51  1.56  1.34 
End bell - Stainless steel
Bearing - Deep groove ball bearing
Magnet - Sinter NdFeB
Rotation shaft - Carbon steel


Dimension Drawing of 22mm slotless brushless motor 22ZWWC48/22ZWWC64-1SZ
22mm slotless brushless dc motor drawing
Performance Curve of 22mm slotless brushless motor 22ZWWC48
22mm slotless brushless dc motor 48 performance curve
Performance Curve of 22mm slotless brushless motor 22ZWWC64
22mm slotless brushless dc motor 64 performance curve



FAQ –22mm Slotless Brushless DC Motor


Q1: Is 22mm slotless brushless dc motor suitable for industrial automation?

Yes, 22mm slotless brushless dc motor is designed with industrial reliability in mind.


Q2: Can 22mm slotless brushless dc motor deliver higher torque than smaller frames?

Yes, significantly higher while maintaining smoothness.


Q3: Is active cooling required?

Optional, depending on load and duty cycle.


Q4: Can 22mm slotless brushless dc motor be used in pump systems?

Yes, including precision fluid and compact pump drives.


Q5: Is customization available?

Yes, both electrical and mechanical customization are supported.


Q6: Do you support long-term OEM supply?

Yes, including engineering and production support.


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