AC Induction Motor
YC-70 AC Gear Motor — 70mm Frame, 15W / 20W
110V / 220V · 15W / 20W · Gear Ratio 1:3 – 1:860
The YC-70 is a 70mm-frame single-phase AC induction gear motor series (15W / 20W, 110V / 220V) with pure copper winding and gear ratios from 1:3 to 1:860. Choose the ordinary, damped or ESC speed-control version, or the electric brake version with fail-safe braking, all rated for continuous 24/7 industrial duty.
Motor Speed1250 / 1500 r/min
Product Features
Key design and engineering features of the YC-70
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Ultra-wide gear ratio range 1:3 to 1:860 covering virtually all low-speed industrial requirements
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Integrated ESC option provides stepless speed control 0–100% without external inverter
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100% pure copper winding with Class F insulation for 24/7 continuous duty
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Precision Φ10mm output shaft handles higher radial and axial loads than 60mm class
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Dual voltage 110V/60Hz and 220V/50Hz for global deployment
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Available in ordinary, damped and ESC variants for complete application coverage
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Fail-safe electromagnetic brake engages in under 50ms on power interruption
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Spring-loaded design ensures shaft locks automatically — no power required to hold position
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100% pure copper winding for reliable 24/7 continuous duty operation
Models & Technical Specifications
Select a model to see its full parameter table and dimensional drawing
YC-70 AC Gear Motor — 70mm Frame, 15W / 20W
110V / 220V · 15W / 20W · Gear Ratio 1:3 – 1:860
The YC-70 AC gear motor delivers 15W and 20W output through a robust 70mm square frame, featuring one of the widest reduction ratio ranges in its class — 1:3 to 1:860. Available in ordinary, damped and ESC (Electronic Speed Controller) variants, it supports precise variable speed control without an external inverter. Pure copper winding ensures reliable 24/7 operation across global voltage standards.
Motor Speed1250 / 1500 r/min
📋 Performance Parameter Table
📐 Dimensional Drawing
| Parameter | Specification |
|---|
| Model | YC-70 |
| Motor Type | AC Induction Motor |
| Rated Power | 15W / 20W |
| Supply Voltage | 110V / 220V |
| Frequency | 50Hz / 60Hz |
| No-Load Speed | 1250 / 1500 r/min |
| Gear Ratio Range | 1:3 – 1:860 |
| Output Shaft Diameter | Φ10mm |
| Frame Size | 70mm Square |
| Insulation Class | Class F (155°C) |
| Duty Cycle | S1 — Continuous 24/7 |
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YC-70 Electric Brake Motor — 70mm Frame, 15W / 20W
110V / 220V · 15W / 20W · Gear Ratio 1:3 – 1:860
The YC-70 Electric Brake Motor integrates a fail-safe electromagnetic braking system into a 70mm AC gear motor. On power interruption, the spring-loaded electromagnetic brake engages within 50ms, locking the output shaft and preventing unintended load movement. Available in 15W and 20W with up to 1:860 gear ratio, it is the preferred choice for vertical load handling, positioning systems and safety-critical automation.
Motor Speed1250 / 1500 r/min
📋 Performance Parameter Table
📐 Dimensional Drawing
| Parameter | Specification |
|---|
| Model | YC-70 Brake |
| Motor Type | AC Induction Motor |
| Rated Power | 15W / 20W |
| Supply Voltage | 110V / 220V |
| Frequency | 50Hz / 60Hz |
| No-Load Speed | 1250 / 1500 r/min |
| Gear Ratio Range | 1:3 – 1:860 |
| Output Shaft Diameter | Φ10mm |
| Frame Size | 70mm Square |
| Insulation Class | Class F (155°C) |
| Duty Cycle | S1 — Continuous 24/7 |
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Applications
Typical industries and equipment where the YC-70 excels
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Packaging Machinery
Filling, sealing, labeling and wrapping machine drives requiring stepless ESC speed adjustment.
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Conveyor & Sorting Systems
Light-duty conveyor drives, automated sorting lines and transfer mechanisms.
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Food Processing Equipment
Mixer drives, dough rollers and small food-processing line actuators.
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Automatic Door & Gate Systems
Sliding door operators, roller shutter drives and gate automation mechanisms.
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Roller Shutters & Awnings
Roller shutter drives and retractable awnings needing fail-safe hold when power is lost.
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Vertical Lifting & Hoisting
Small hoists, lift platforms and vertical conveyor systems requiring positive load hold on power interruption.
Advantages
Why engineers and buyers choose CoreMotor Tech for the YC-70
01
Widest ratio range in class eliminates the need for multiple motor SKUs
02
Integrated ESC reduces BOM cost versus separate motor + inverter solutions
03
Export documentation and shipping coordination provided
04
OEM/ODM support with flexible MOQ
Frequently Asked Questions
Common questions about the YC-70
What is the ESC variant and how does it work?+
The ESC (Electronic Speed Controller) variant has a built-in speed control module. You adjust a knob or connect a 0–5V signal to vary the output speed from 0 to 100% of rated speed — no separate inverter needed.
What is the maximum continuous torque output?+
Maximum permissible torque reaches 2.45 N·m at ratios of 1:75 and above. At lower ratios such as 1:3, maximum torque is 0.12 N·m. Please refer to the parameter table for the full ratio-torque map.
Can this motor run 24 hours continuously?+
Yes. With Class F insulation and pure copper winding, the YC-70 is rated for 24/7 continuous duty at ambient temperatures up to 40°C.
Is a three-phase version available?+
Our current YC-70 range is single-phase only. Please contact us if you require three-phase specifications — we can discuss custom solutions.
How does the electromagnetic brake work?+
When power is applied, an electromagnet releases the spring-loaded brake disc, allowing the motor to run freely. When power is cut, the spring clamps the brake disc against the rotor, locking the shaft within 50ms.
Can the brake be released manually?+
Yes. Most configurations include a manual release lever for maintenance or emergency shaft positioning without power. Please specify this requirement when ordering.
