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70 Series

70 Series

Frameless Torque Motor

  1. Modular stator and rotor design with optimized magnetic circuit improves the motor’s torque density.

  2. The rotor features a large internal hollow space, and the stator can be installed using the customer’s embedded mounting method, allowing flexible customized designs, including installation configurations, and providing greater adaptability for customer-specific systems.

  3. Optimized slot-pole combination reduces cogging torque, ensuring smoother motor operation.

  4. Compact structure with high integration capability.


Online ConsultationOnline Consultation
Product Parameters

Technical DataTechnical Data

Motor Mode
70ZWC20X-170ZWC25X-1
Stator Outer Diametermm69±0.03769±0.037
Rotor Inner Diametermm
42+0.03942+0.039
Overall Length Lmm15.921.5
Stack Length L1mm
10.315.9
Number of Slots-
1818
Number of Pole Pairs-
1010
Line ResistanceW0.320.22
Line InductancemH0.520.35
Winding Connection Method-
Star ConnectionStar Connection
Insulation Class-
FF
Duty Cycle-
S2S2
Feedback Method-Hall SensorHall Sensor
Commutation Angle-
120°120°
Dielectric Strength (Withstand Voltage)-
500VAC/1mA/1s500VAC/1mA/1s
Insulation Resistance-
100MW/500VDC100MW/500VDC
Stator Weightg
167.5224
Rotor Weightg
7290
No-load SpeedRPM43504400
No-load CurrentA0.5(REF)1.3(REF)
Rated VoltageVDC
4848
Rated PowerW216456
Rated TorqueN·m0.551.3
Rated SpeedRPM37503350
Rated CurrentA5.411.4
Torque ConstantNm/A0.1090.13
Back EMF Constant - RMS ValueVrms/Krpm8.19.6
Peak TorqueN·m1.652.6
Peak CurrentA14.221
Rotor Inertiag·cm2358455


Overall DimensionsOverall Dimensions

Product DrawingProduct Drawing

After ServiceAfter Service

To provide solid support for all after-sales services, ensuring service quality and efficiency:

1. National service outlets:Establishing service outlets and testing centers in major industrial cities in China to achieve regional service coverage and shorten on-site service response time;

2. Original factory engineering team:All service engineers have undergone professional training and assessment, possess the ability to debug, repair, and calibrate sensors/joint modules throughout the entire process, and are certified to work;

3. Standardized service process:Establish a standardized process from service acceptance, fault diagnosis, solution, service execution, and after-sales follow-up to ensure that every service is recorded, tracked, and guaranteed;

4. Service quality follow-up:After all services are completed, Follow up with customers within 72 hour, collect customer feedback, and continuously optimize service processes and quality.

Promise to quickly solve problems within 12 hours, 7x24Timely response within hours,36on-site maintenance within hours.

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