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50mm Frameless Torque Motor for Industrial Direct Drive Systems

50mm frameless motor offers higher torque output for direct-drive applications. Suitable for robotic joints, automation equipment, and motion systems requiring low backlash.
  • 50ZWC15/25X-1

  • Modar Motor

  • 50mm

  • 168/219W

  • 0.3/0.51N.m

  • 48V

  • 100% pure copper

  • 2

  • about 30 days

Availability:

Product Overview

The 50mm frameless motor is designed for industrial-grade direct-drive applications requiring higher torque and stable continuous performance.


frameless motor 50mm-70mm


Key Features

  • Higher torque capability

  • Industrial-grade electromagnetic design

  • Smooth rotation with low vibration

  • Flexible voltage and winding options

  • Suitable for automation and robotics


Typical Applications


Application Positioning

The 50mm frameless motor is commonly selected for medium-load direct-drive systems requiring stable torque output and precise motion control.

Typical Industries & Use Cases

50mm frameless motor is widely used in robot joint modules, automated assembly equipment, rotary positioning platforms, and industrial inspection machines.

  • Industrial automation equipment

  • Robotic arms and actuators

  • Medical imaging systems

Integration Value

By eliminating gearboxes, 50mm frameless motor enhances system reliability and simplifies mechanical design while maintaining high motion accuracy.



Technical Specifications (50mm Frameless Motor Series)

The following technical data applies to the 50mm frameless motor 50ZWC15X-1 and 50ZWC25X-1.



  Motor Characteristics
Motor part number
50ZWC15X-1 50ZWC25X-1
Stator outer diameter mm 50±0.031 50±0.031
Rotor inner diameter mm 30+0.033 30+0.033
Overall length (L) mm 13.2  19.5 
Stack length (L1) mm 8.9  15.2 
Rotor length (L2) mm 17.7±0.2 24±0.2
Number of slots - 18  18 
Pole pairs - 10  10 
Phase-to-phase resistance 0.62  0.6 
Phase-to-phase inductance mH 0.44  0.45 
Winding connection method - Star connection Star connection
Insulation class - F F
Duty type - S2 S2
Feedback method - Hall sensor Hall sensor
Commutation angle - 120o 120o
Insulation strength (Withstand voltage) - 500VAC/1mA/1s 500VAC/1mA/1s
Insulation resistance - 100MΩ/500VDC 100MΩ/500VDC
Stator weight g 77.5  124 
Rotor weight g 38  50 
No-load speed RPM 6400  5000 
No-load current A 0.4(REF) 1.1(REF)
Rated voltage VDC 48  48 
Rated power W 168  219 
Rated torque N·m 0.3  0.51 
Rated speed RPM 5350  4100 
Rated current A 4.4  5.65 
Torque constant Nm/A 0.074  0.092 
Back-EMF constant (effective value) Vrms/Krpm 5.5  6.8 
Peak torque N·m 0.96  1.5 
Peak current A 10.7  16.1 
Rotor inertia g·cm² 100  135 


Dimension Drawing

50mm frameless motor 50ZWC15X-1


50ZWC15X-1 50mm frameless motor drawing



50mm frameless motor 50ZXC25X-1


50ZWC25X-1 50mm frameless motor drawing



Lead-out type Lead-out color Function
UL1332 AWG20 Yellow U phase
Red V phase
Black W phase

50mm frameless motor wiring



Torque Performance Curves

50ZWC15X-1


50ZWC15X-1 50mm frameless motor curve


50ZXC25X-1


50ZWC25X-1 50mm frameless motor curve



frameless motor.pdf




FAQ – 50mm Frameless Motor


Q1: Is the 50mm frameless motor suitable for medium-torque applications?

Yes, 50mm frameless motor is designed for direct-drive systems requiring stable medium torque.


Q2: Can 50mm frameless motor be integrated into robotic joint modules?

Yes, 50mm frameless motor is commonly integrated into compact robotic joint assemblies.


Q3: Does 50mm frameless motor support long operating hours?

Yes, with proper thermal management, 50mm frameless motor supports extended operation.


Q4: Can50mm frameless motor operate without a gearbox?

Yes, 50mm frameless motor is intended for direct-drive designs without gear reduction.


Q5: Are different sensor options supported?

Yes, 50mm frameless motor is compatible with various external feedback options.


Q6: Is 50mm frameless motor suitable for customized OEM designs?

Yes, 50mm frameless motor supports application-specific customization for OEM projects.



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