1. At a Glance
An 18-inch blade on a hot day is the hardest job a fan motor gets.
YKS-7116 keeps the 71 mounting envelope but loads the core: a 71mm stator wound in a 16, 18 or 20mm stack, rated 45-80W. More magnetic material means the motor holds speed under blade load instead of sagging - the difference between a fan that cools a workshop and one that only moves air.
Customization: stack 16/18/20mm, voltage and shaft to order.
Applications: 14-18 inch stand, wall and industrial pedestal fans, air circulators.
Build: hardened 8mm shaft, oil-impregnated bearing, PP gearbox.
2. Why Choose the Heavy Duty Build?
Torque Reserve: the larger core keeps speed up when a heavy blade comes on, instead of creeping up to full RPM.
Cooler Running: a taller stack draws less current for the same airflow, so the winding runs cooler at the same blade size.
A Shaft That Holds: high-carbon steel resists bending under blade load, which keeps rotation quiet.
A Gearbox That Lasts: internal gears in a PP housing- the part that strips first on an all-plastic unit.
3. Technical Specifications
Model | YKS-7116 |
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Motor type | AC single-phase induction, heavy duty |
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Stator | 71 x 16 / 18 / 20mm |
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Rated voltage | 220-240V (110V/60Hz customizable) |
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Frequency | 50/60Hz |
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Rated power | 45-80W |
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Rated speed | 1200 RPM |
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Shaft | 8mm, hardened carbon steel |
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Bearing | Oil-impregnated sleeve, self-lubricating |
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Capacitor | CBB61 1.8uF ± 5%, 450VAC |
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Oscillation | PP gearbox |
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Control | 4-wire, 3-speed |
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Housing | Corrosion-resistant, ventilated |
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4. Deep Customization & OEM Services
Stack choice: 16mm, 18mm or 20mm matched to blade size and duty cycle.
Electrical: 110V/60Hz build available; copper winding on request.
Mechanical: shaft, lange drilling, lead length and harness.
Branding and packing: nameplate, carton artwork, reinforced packing for 18-inch assemblies.
5. FAQ
Q: Which stack should I order for 18-inch blades?
A: 18mm is the general-purpose choice; 20mm for continuous industrial use, and 16mm only for 14-16 inch light duty.
Q: Will it fit the existing 7116 bracket?
A: It uses the 7116 envelope, but boss height and shaft differ from the economy build. Send the bracket drawing and we confirm before production.
Q: What warranty applies?
A: Two years as standard. Heavy duty configurations can be quoted with a different term depending on duty cycle, confirmed on the proforma invoice.
Replacing motors that keep failing in the field? Send the blade size, duty cycle and failure mode - we will specify the stack and capacitor that survive it.
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