
Electric Oil Pump (EOP) Manufacturing Solution
With the rapid development of new energy and intelligent vehicles, electric oil pumps (EOPs) require higher standards in motor performance, sealing reliability, and manufacturing consistency.
JHY provides comprehensive automated manufacturing solutions for automotive electric oil pumps, covering precision stator winding, rotor assembly, pump module integration, sealing processes, functional testing, and intelligent production traceability. The solution enables full-process automation from core component manufacturing to final assembly.
Leveraging advanced automation technologies, precise process control, and MES-based smart manufacturing systems, JHY helps customers achieve efficient, reliable, and consistent EOP mass production while meeting the stringent quality and performance requirements of the automotive industry.

Core Capabilities
Precision Motor Manufacturing
Advanced stator winding and rotor assembly technologies ensure stable motor performance and meet automotive requirements for consistency and reliability.
Reliable Sealing and Durability Performance
Integrated O-ring assembly, sleeve installation, and leak testing processes enhance sealing reliability for demanding automotive operating conditions.
Smart Manufacturing and Full Traceability
MES, DMC, and electronic SOP management systems enable real-time data collection, process monitoring, and complete product lifecycle traceability.
Complete EOP Automated Manufacturing Process
JHY integrates motor manufacturing, mechanical assembly, sealing processes, testing systems, and intelligent data management into one automated production platform, providing customers with a complete EOP manufacturing solution.
Manufacturing Process
01.Motor Manufacturing
- Automatic Stator Loading
- Precision Needle Winding
- Lead Wire Adjustment
- Housing Assembly and Thermal Fitting
- Dimensional Inspection
02.Rotor Assembly
- Automatic Rotor Loading
- Magnet Press-fitting
- Dynamic Balancing
- Magnetization Inspection
03.Pump Module Assembly
- Rotor and Stator Assembly
- Clearance Inspection
- Terminal Press-fitting
- Pump Cover and Filter Assembly
04.Sealing and Performance Testing
- Automatic O-ring Assembly
- Sleeve Press-fitting
- Wet-side Leak Testing
- Dry-side Leak Testing
Why Choose JHY?
Complete EOP Manufacturing Capability
Providing integrated automation from motor components to final pump assembly.
Automotive-grade Quality Control
Multiple inspection and validation processes ensure reliable product performance.
Efficient High-volume Production
Optimized processes enable stable production with consistent output quality.
Smart Factory Integration
MES and traceability systems enable transparent, data-driven manufacturing.
Looking for an Electric Oil Pump (EOP) Manufacturing Solution?
JHY provides customized automated manufacturing solutions for automotive electric oil pumps, covering key processes including motor manufacturing, pump assembly, sealing, performance testing, and intelligent production management. With extensive automation integration expertise and flexible manufacturing capabilities, JHY supports customers in achieving reliable, consistent, and scalable EOP production tailored to specific application requirements.
