Raydafon YVF2 motors are built specifically for VFD operation, not adapted from a standard motor. Independent forced ventilation (IC416) keeps the winding cool at low speed, extended insulation handles inverter voltage spikes, and dynamic rotor balancing keeps vibration low across the full speed range. Standard power covers 0.12–22 kW with frame sizes 63–180, in 2-pole, 4-pole and 6-pole versions.
Continuous speed regulation from low frequency to high frequency with stable torque and constant cooling, no separate cooling fan required.
Pick the base speed your driven machine needs, then confirm frame and power. YVF2 also supports encoder feedback, extended speed ranges and higher IP ratings for wet or dusty plants.
Standard rated voltage 380V / 50Hz. Custom voltage, 60Hz, dual-frequency, extended speed range and encoder feedback are available for OEM projects.
YVF2 motors follow standard IEC frame dimensions for direct interchangeability with standard induction motors. Full B5 flange and B35 foot-flange drawings are available on request.
| Frame | A | B | C | D | E | F | G | H | K | AB | AC | HD | L |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 63 | 100 | 80 | 40 | ø11 | 23 | 4 | 12.5 | 63 | ø7 | 135 | 120×120 | 167 | 270 |
| 71 | 112 | 90 | 45 | ø14 | 30 | 5 | 16 | 71 | ø7 | 137 | 130×130 | 178 | 315 |
| 80 | 125 | 100 | 50 | ø19 | 40 | 6 | 21.5 | 80 | ø10 | 155 | 145×145 | 190 | 340 |
| 90S | 140 | 100 | 56 | ø24 | 50 | 8 | 27 | 90 | ø10 | 175 | 160×160 | 205 | 400 |
| 90L | 140 | 125 | 56 | ø24 | 50 | 8 | 27 | 90 | ø10 | 175 | 160×160 | 205 | 400 |
| 100L | 160 | 140 | 63 | ø28 | 60 | 8 | 31 | 100 | ø12 | 200 | 185×185 | 240 | 430 |
| 112M | 190 | 140 | 70 | ø28 | 60 | 8 | 31 | 112 | ø12 | 230 | 200×200 | 270 | 480 |
| 132S | 216 | 140 | 89 | ø38 | 80 | 10 | 41 | 132 | ø12 | 270 | 245×245 | 315 | 567 |
| 132M | 216 | 178 | 89 | ø38 | 80 | 10 | 41 | 132 | ø12 | 270 | 245×245 | 315 | 567 |
| 160M | 254 | 210 | 108 | ø42 | 110 | 12 | 45 | 160 | ø14.5 | 320 | 335×335 | 450 | 850 |
| 160L | 254 | 254 | 108 | ø42 | 110 | 12 | 45 | 160 | ø14.5 | 320 | 335×335 | 450 | 870 |
| 180M | 279 | 241 | 121 | ø48 | 110 | 14 | 51.5 | 180 | ø14.5 | 355 | 370×370 | 500 | 880 |
| 180L | 279 | 279 | 121 | ø48 | 110 | 14 | 51.5 | 180 | ø14.5 | 355 | 370×370 | 500 | 980 |
B5 flange and B35 foot-flange drawings are available on request. Typical mounting variants are shown below.
Wherever a driven machine must run at different speeds or match process demand instead of fixed speed, the YVF2 motor holds torque and cooling across the whole range.
Belt, roller and screw conveyors with variable material flow control.
Centrifugal pumps, blowers and exhaust fans for energy-efficient flow regulation.
Lathes, milling machines and grinding spindles requiring precise speed control.
Spinning, weaving and dyeing equipment with multi-stage speed profiles.
Filling, sealing, labelling and printing presses with tension control.
Air handling units and refrigeration compressors with load-following speed.
Agitators, mixers and extruders where speed changes during the process.
Transfer systems, sorters and feeders with variable throughput.
Send the driven machine, working speed range, torque curve, voltage, frequency, mounting and shaft drawing. Raydafon will confirm the correct YVF2 frame and option.
Power, speed range, torque curve and driven equipment.
Frame size, mounting B3/B5/B35, shaft and protection grade.
Winding, insulation and cooling matched to your inverter.
Encoder feedback, nameplate and paint colour options.
Full-load test, vibration, noise and export packing.
Every YVF2 motor is 100% tested for insulation resistance, winding continuity, vibration, noise and full-load performance. Test reports and material certificates are provided with each batch.
Common questions about VFD compatibility, speed range, cooling and encoder options.
Send the driven machine, speed range, torque curve, voltage, frequency and mounting. Our engineers will recommend the correct YVF2 frame, winding and cooling option, and reply within 24 hours.
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Luotuo Industrial Area, Zhenhai District, Ningbo City, China
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