1440 rpm motor
Frame number: 80-450
Power range:0.75-1000kW
Protection level:IP55
Energy efficiency class: IE4
Voltage range: 380V,400V,415V, 660V,etc.
Application:can be used in various fields of the national economy, such as machine tools,water pumps,fans,compressors,and can also be used in transportation, mixing, printing, agricultural machinery, food and other occasions that do not contain flammable, explosive or corrosive gases.
Certificate: international standard IEC60034-30 ""Efficiency Classification of Single-speed Three-Phase Squirrel Cage Induction Motors"".
Advantage:The high quality of the electric motor guarantees high operational reliability.
Others: SKF, NSK, FAG bearings can be replaced according to customer requirements.
"
- Product Description
1440 RPM Motor YE4 Series — IE4 Super Premium Efficiency for Industrial Applications
The 1440 rpm motor in the YE4 series is a three-phase squirrel cage induction motor supplied by Shaanxi Qihe Xicheng Electromechanical Equipment Co., Ltd. It covers a power range of 0.75–1000 kW across frame sizes 80 to 450, with IE4 super premium efficiency and IP55 protection. Voltage compatibility spans 380V to 660V, and the motor is certified to IEC60034-30. It is intended for continuous-duty industrial applications where energy efficiency and environmental protection are both required.
Manufacturer and Supplier Background
Shaanxi Qihe Xicheng Electromechanical Equipment Co., Ltd. has been providing power equipment for more than 20 years since 2004. The company has long-term supply partnerships with more than 30 motor manufacturers like ABB, Siemens, Wolong, NEC, SIMO, PINXING, XEMC and CHANGSHA.
A multi-brand supply chain and a SAP factory management system assist operations. This design offers the capability to support both standard orders and project specific requirements for a wide range of voltage standards and frame sizes.
All items we offer have the following certification documents: CCC, CE, ISO9001:2000, CRCC, CQC, UL, GOST, China energy-saving production certification.
Common Sourcing Challenges
Buyers in the industrial motor market often encounter several recurring issues. The table below outlines how this supply setup addresses each one.
Common Challenge | How This Is Addressed |
High energy costs from low-efficiency motors | IE4 efficiency class reduces operating losses compared to IE2 or IE3 motors |
Voltage compatibility across different regions | Supports 380V, 400V, 415V, 660V and other configurations |
Insufficient protection in wet or dusty environments | IP55 enclosure rated for dust and low-pressure water exposure |
Limited brand options from single-source suppliers | 30+ manufacturer partners provide selection across brands and specifications |
Uncertainty about model selection | Pre-sales engineers recommend specific brand, series, and model based on load data |
After-sales response availability | Support available 7 days a week, including weekends |


Technical Specifications
Parameter | Details |
Series | YE4 |
Frame Number | 80–450 |
Power Range | 0.75–1000 kW |
Rated Speed | ~1440 rpm (4-pole, 50Hz) |
Protection Level | IP55 |
Energy Efficiency Class | IE4 (Super Premium) |
Voltage Options | 380V, 400V, 415V, 660V, etc. |
Certification Standard | IEC60034-30 |
Bearing Options | SKF, NSK, FAG (selectable per request) |
Motor Type | Three-phase squirrel cage induction |
The YE4 product meets IEC60034-30 efficiency classification for single-speed three-phase motors, the international benchmark applied to premium-efficiency industrial equipment.
Technical Advantages
The YE4 series offers specific performance characteristics worth noting when comparing against standard IE2 or IE3 motors:
· IE4 efficiency class reduces energy losses in heat dissipation over the motor's service life, which is reflected in lower operating costs at continuous duty.
· IP55 protection allows installation in wet, dusty, or moderately exposed environments without requiring an additional enclosure.
· Frame range 80–450 supports a broad selection of mounting footprints, useful when replacing legacy motors or working within constrained installation dimensions.
· Selectable bearing brands — SKF, NSK, or FAG — allow alignment with existing maintenance standards or local spare-parts availability.
Each of these specifications can be verified against the product datasheet and the applicable IEC standards.
Production and Quality Process
Products of this line are manufactured in factories with ISO9001:2000 quality management systems and traceability all through manufacturing is based on SAP.
The stator windings are treated to retain the geometry of the coils and the integrity of the insulation. Rotor assemblies are dynamically balanced prior to final assembly to reduce vibration at operating speed.
Before shipment, each motor is inspected including insulation resistance tests, no-load run tests and dimensional checks to drawing tolerances.
Industry Applications
The YE4 1440 rpm motor is suitable for continuous-duty use across a range of industrial sectors:
· Machine tools — lathes, milling machines, grinding equipment
· Water pumps — municipal supply, irrigation, industrial cooling circuits
· Fans and blowers — HVAC systems, industrial ventilation
· Compressors — air compressors, refrigeration compressors
· Conveyor and material handling — belt drives, transfer systems
· Mixing and agitation — chemical processing, food production
· Printing machinery — press drives and feed systems
· Agricultural machinery — grain processing, irrigation pumps
This motor is designed for environments free from flammable, explosive, or corrosive gases. For hazardous area requirements, contact the technical team to discuss alternative series options.
Customization Options
Standard catalog models cover most applications. For project-specific requirements, the following adjustments are available:
· Dimensional modifications — shaft length, mounting flange, terminal box position
· Voltage and frequency configuration — matched to your local grid standard
· Bearing brand selection — SKF, NSK, or FAG based on your maintenance setup
· Brand and series recommendation — engineers will identify the most suitable option from the 30+ partner manufacturers based on your load profile and operating conditions
Send your technical requirements and a model recommendation will be provided based on your specific application data.
Certifications
The following certifications are available as documentation for procurement and compliance review:
· CCC — China Compulsory Certification
· CE — European conformity
· ISO9001:2000 — International quality management
· CRCC — Ministry of Railways certification
· CQC — China Quality Certification
· UL — North American market acceptance
· GOST — Russian and CIS market certification
· China Energy Saving Production Certification
· IEC60034-30 — International efficiency classification standard

Why Source from XCMOTOR?
With more than 20 years of experience in supplying power equipment, the company has developed relationships and an active supply chain with several manufacturer brands.
Selection across brands and requirements is available with access to more than 30 manufacturers, reducing relying on a single supplier’s lead time or pricing structure.
Pre-sales technical support helps customers select the correct model before purchase, decreasing the likelihood of specification mismatches or installation problems.
7-day assistance Get your questions or post-delivery difficulties resolved on any day of the week.

FAQ
Q: What is the speed of a YE4 motor at 50Hz, 4-pole winding?
A: A 4 pole motor at 50Hz will have a synchronous speed of 1500rpm. The actual running speed under load is about 1440 rpm owing to slip. This is the rated operating speed for this series.
Q: Can the motor be used on a 60Hz power supply?
A: You can run the motor at 60Hz. However, the rated speed and torque characteristics will be different than the nameplate values at 50Hz. Please advise your supply frequency when seeking a quotation so the proper model can be confirmed for your application.
Q: What is the protection of IP55?
A: IP55 protects against dust infiltration and low pressure water jets from all directions. Suitable for damp, dusty or outside covered installations.
Q: Which bearing brands are available?
A: SKF, NSK, and FAG bearings are all available. Specify your preferred brand based on your maintenance setup or existing spare-parts inventory.
Q: What certifications are included for export?
A: CE, UL, GOST, CCC, ISO9001:2000, and IEC60034-30 certifications are available, covering major export markets in Europe, North America, and the CIS region.
Q: Can shaft dimensions or mounting configuration be adjusted?
A: Yes. Shaft length, mounting dimensions, and terminal box position can be modified. Provide your drawings or dimensional constraints when submitting your inquiry.
Contact Us
Send your 1440 rpm motor specifications or technical questions to XCMOTORs@163.com">xcmotors@163.com. The technical team will respond with a model recommendation based on your requirements.




