
Electric Oil Pump (EOP) Manufacturing Solution
JHY provides complete automation solutions for electric oil pump manufacturing, integrating stator winding, rotor assembly, pump module assembly, sealing processes, performance testing, and MES-based production traceability.
The solution is designed for automotive applications requiring high reliability, precise assembly control, and stable mass production capability.

Solution Overview
Integrated Manufacturing Solution for Automotive Electric Oil Pumps
Electric oil pumps require precise motor manufacturing, reliable sealing performance, and strict quality control to ensure stable operation in automotive systems.
JHY provides a complete automated manufacturing solution covering stator winding, rotor assembly, pump housing integration, sealing assembly, functional testing, and intelligent production management.
Through advanced automation technology and MES traceability systems, JHY supports customers in achieving efficient and reliable EOP mass production.
Precision Motor Manufacturing
Advanced winding and rotor assembly processes ensure stable motor performance.
Reliable Sealing Technology
Integrated O-ring assembly and airtightness testing improve product reliability.
Intelligent Production Management
MES and DMC systems enable complete manufacturing traceability.
Key Manufacturing Capabilities
Complete Electric Oil Pump Manufacturing Process Integration
JHY integrates multiple automated processes from motor component manufacturing to final pump assembly, providing a complete EOP production solution.
Precision Stator Winding
JHY applies advanced nozzle winding technology to achieve accurate wire positioning and stable coil quality for automotive pump motors.
Key Features:
- Automatic stator loading
- Multi-station nozzle winding
- Wire lead adjustment
- Stable winding quality
Rotor Assembly & Magnetic Processing
Automated rotor processes ensure accurate magnetic component installation and reliable motor performance.
Key Features:
- Rotor loading
- Magnet steel pressing
- Dynamic balancing
- Magnetization inspection
Pump Module Assembly
Integrated assembly processes ensure accurate mechanical positioning and reliable product integration.
Key Features:
- Stator and rotor assembly
- Clearance detection
- Pin pressing
- Pump cover assembly
- Filter assembly
Sealing & Reliability Testing
Advanced sealing processes verify product reliability under automotive operating conditions.
Key Features:
- O-ring assembly
- Isolation sleeve pressing
- Wet-zone airtightness testing
- Dry-zone airtightness testing
Automated Production Process
Complete Electric Oil Pump Manufacturing Process
The automated production line integrates motor manufacturing, mechanical assembly, sealing, testing, and intelligent data management to provide a complete solution for automotive electric oil pump production.
Process Flow
01 Motor manufacturing
- Stator Loading
- Nozzle Winding Process
- Wire Lead Adjustment
- Housing Loading
- Stator Housing Heat Shrinking & Cooling
- Height Detection
02 Rotor assembly
- Rotor Loading
- Rotor & Magnet Steel Pressing
- Rotor Dynamic Balance Testing
- Rotor Magnetization Inspection
03 Pump assembly
- Rotor & Stator Assembly
- Clearance Detection
- Secondary Pressing & Positioning Pin Assembly
- Pump Cover Assembly
- Filter Assembly
- O-ring Assembly
- Isolation Sleeve Pressing
04 Electrical assembly & testing
- Electrical Performance Testing
- PCBA Assembly
- Thermal Riveting & Heat Dissipation Adhesive Application
- Rear Cover Assembly
- Rear Cover Press Fit
- Lock Screw Assembly
- Wet Zone Airtightness Testing
- Dry Zone Airtightness Testing
- Program Burning
- EOL & NVH Testing
05 Traceability & final handling
- Laser Marking & DMC Traceability
- Product Cleaning
- MES Data Collection
Core Manufacturing Technologies
Automotive Motor Manufacturing Technology
Stator Winding System
JHY provides precision stator winding solutions for electric oil pump motors, ensuring stable coil quality and production consistency.
Features:
- Automatic stator handling
- Nozzle winding technology
- Wire management
- Process control
Rotor Assembly & Balance Testing
Automated rotor assembly processes improve mechanical accuracy and motor reliability.
Features:
- Magnet steel pressing
- Dynamic balance testing
- Magnetization inspection
- Rotor positioning control
Pump Assembly & Sealing Technology
Complete automation for pump housing assembly and sealing processes.
Features:
- Housing integration
- O-ring assembly
- Isolation sleeve installation
- Airtightness testing
End-of-Line Testing & Quality Control
Integrated testing systems ensure final product performance and reliability.
Features:
- Electrical performance testing
- Program burning
- NVH testing
- Final inspection
Intelligent Manufacturing & MES Traceability
Smart Manufacturing System for Automotive Production
JHY intelligent manufacturing system integrates MES, DMC, and electronic SOP management to achieve transparent and traceable production.
The system supports:
- Real-time production monitoring
- Process parameter recording
- Test data linking
- Product genealogy tracking
- Quality data management
- Electronic SOP management
Solution Advantages
Why Choose JHY?
Complete EOP Manufacturing Solution
Integrated automation from motor components to final pump assembly.
Automotive-Level Quality Control
Multiple inspection and testing processes ensure product reliability.
High Production Efficiency
Optimized automation processes support stable mass production.
Intelligent Factory Integration
MES and traceability systems enable data-driven manufacturing.
Looking for an Electric Oil Pump Manufacturing Solution?
JHY provides customized automation solutions for automotive motor manufacturing, pump assembly, inspection, and intelligent production.
