Product Introduction
2.2KW 3HP 220V Air Compressor Motor - Single-Phase Capacitor-Start Induction Motor with Full Copper Winding
YC Series · 2880 RPM · 220V Single-Phase · 100% Copper Wire Stator - Direct Replacement Motor for Belt-Drive Workshop Air Compressors
Air compressor 2.2KW-3HP-220V motor with copper wire
The electric motor sets the available shaft power that determines how much compression work the pump head can sustain - and its starting torque characteristic determines whether the compressor reliably restarts against residual receiver pressure after a pressure switch cut-out. When a workshop compressor motor fails through winding insulation breakdown, bearing seizure, or capacitor failure, fitting a correctly rated replacement restores full output without replacing the pump head, tank, or controls.
This 2.2KW (3HP) single-phase YC-series capacitor-start induction motor is wound with 100% copper wire throughout the stator, designed for 220V single-phase 50Hz supply. It operates at 2880 RPM with the high starting torque that enables reliable restart against residual receiver pressure without depressurising between cycles. The 100% copper winding delivers lower resistive losses than aluminium-wound alternatives at the same frame size - translating into higher operating efficiency, lower steady-state current draw, and cooler winding temperatures during continuous belt-drive duty that extend insulation service life and reduce thermal failure risk. The black cast iron ribbed housing, square terminal box, oval rear cap, and keyed steel output shaft complete a standard compressor motor form factor suited to direct mounting on belt-drive compressor frames.
Technical Profiles & Materials
100% Copper Wire Stator Winding for Thermal Efficiency and Extended Service Life The stator winding is constructed entirely from copper magnet wire - copper's electrical conductivity is approximately 60% higher than aluminium at equivalent conductor cross-section, producing lower resistive heating losses (I²R losses) at equivalent current levels. Lower winding temperature reduces the rate of insulation degradation that leads to inter-turn short circuits and winding failure - the primary failure mode of induction motors in continuous compressor service. For workshop operators running multiple daily duty cycles, the copper winding's thermal advantage compounds over the motor's service life into measurably longer intervals between winding failure and motor replacement.
Cast Iron Ribbed Housing with Rear Cooling Fan and Fan Shroud The stator and end frames are cast from grey cast iron - providing structural rigidity for bearing alignment under the belt tension side-load that is the primary mechanical stress on a belt-drive compressor motor - finished with black industrial enamel. The ribbed external surface increases convective cooling area, supplementing the active cooling from the rear-mounted axial fan enclosed within the black sheet steel fan shroud. The combined passive-and-active cooling system maintains winding and bearing temperatures within the motor's insulation class rating during continuous duty cycles at maximum workshop ambient temperatures, preventing the thermal runaway that causes insulation breakdown in undercooled motors operating at their thermal limit.
Capacitor-Start Configuration with Square Terminal Box and Keyed Output Shaft The YC-series capacitor-start design uses an external starting capacitor to generate the high starting torque needed to accelerate the compressor pump head from rest and restart reliably against residual receiver pressure after a pressure switch cut-out. Once at operating speed, a centrifugal switch disconnects the capacitor and the motor runs on its main winding. The square black terminal box provides a clean, accessible connection point for the incoming supply cable with clearly labelled terminal lugs and a removable cover. The keyed output shaft accepts standard V-groove belt pulleys for a range of compressor pump configurations.
Technical Specifications
| ITEM | DETAILS |
| Type | Single-Phase Capacitor-Start Induction Motor (YC Series) |
| Application | Belt-drive reciprocating air compressors matched to 2.2KW/3HP pump heads; workshop, automotive repair, woodworking, and light industrial belt-drive compressor assemblies |
| Code | 1401152 |
| Material | 100% copper wire stator winding; cast iron frame and end caps (black enamel); steel output shaft; sheet steel fan shroud |
| Details explanation | Power: 2.2KW (3HP); voltage: 220V single-phase 50Hz; speed: 2880 RPM; capacitor-start; 100% copper winding; keyed output shaft; square terminal box |
| Brand Name | SeaSummer |
| Operating Temp | --10°C to +40°C |
| Delivery Time | 30 Days |
| Packaging | Cardboard packaging |
Products Application
Motor Replacement and New Compressor Assembly Build in Equipment Workshops
Compressor service technicians use this motor as a direct replacement for failed or undersized motors on existing 2.2KW belt-drive compressors - recovering full output without disturbing the pump head, tank, pressure switch, or safety valve. For new compressor builds, the motor is mounted on the base frame, the output shaft pulley is selected to achieve the correct pump head operating RPM, V-belt tension is set to specification, and the supply cable is terminated at the square terminal box before commissioning with a no-load run to verify rotation direction and starting performance. The capacitor-start characteristic makes this motor appropriate for compressors that restart frequently under residual tank pressure - the typical operating cycle of a pressure-switch-controlled workshop compressor.
Terminal Box Wiring and Electrical Inspection on the Workshop Workbench
Before installation, the electrician opens the terminal box cover, inspects the copper wire terminal connections and lug condition, verifies the starting capacitor rating against the motor nameplate, and checks insulation resistance between windings and frame with a megohmmeter to confirm electrical integrity before connecting to the supply. The wiring diagram inside the terminal box cover shows the connection configuration for the main winding, auxiliary winding, and capacitor - critical for correctly connecting a single-phase motor that can be permanently damaged by incorrect terminal assignment. This pre-installation electrical check prevents commissioning a motor with a pre-existing winding fault or capacitor mismatch that causes immediate starting failure or premature winding failure at first load.
V-Belt Tension Maintenance and Motor Alignment in Assembled Workshop Compressors
After installation, the technician checks V-belt tension between the motor output pulley and the pump head flywheel by pressing the belt at its midpoint and measuring deflection - correct tension prevents belt slipping under starting load that burns belt surfaces, while excessive tension imposes a damaging side-load on motor and pump head shaft bearings. Motor foot bolt positions are adjusted on slotted mounting holes to achieve correct tension, and pulley alignment in the same plane as the pump flywheel is verified to prevent belt tracking off the groove under cyclic load variations. Periodic belt tension checks at scheduled service intervals - alongside oil level, valve plate, and pressure switch inspection - form the complete preventive maintenance routine for a belt-drive compressor assembly using this motor.
Quality and Craftsmanship Details
Products Package
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Q: Are you an impartial industrial components dealer or a direct China water pump factors factory?
A:We are a direct, ISO9001-certified engineering water pump components manufacturing facility and precision fluid-control factor manufacture exporter primarily based in China. We function our personal cleanroom injection molding bays, computerized ultrasonic welding arrays, computerized hydraulic stress check stations, and clean-room packaging lines, passing direct-factory wholesale price financial savings straight to your element procurement margins.
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A: Yes, we are a thoroughly succesful OEM/ODM supplier. For aggressive chemical or ozone environments, we can improve the 12x26.5mm valve configuration in our factory: substituting the general PP housing with top class PVDF (Fluoropolymer) and changing any steel springs with Hastelloy or whole springless gravity-ball architecture, making sure final chemical resistance.
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A: We relatively inspire complete laboratory contrast earlier than logging mass grant agreements. We can ship a pattern lot of 5-10 gadgets of our inventory 12x26.5mm take a look at valves for assessment (setup costs and DHL/FedEx air freight apply). Once the factors pass by your inner lifecycle verification and a formal wholesale quantity manufacturing contract or container run is locked in, the sampling charges are a hundred percent credited returned to your industrial balance.
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