Automotive Oil Pump Check Valve Spring Solution

CATALOG Precision Components (Suzhou) Co., Ltd. provides a dedicated spring solution for CAC Group’s proprietary passenger vehicle program, covering the R&D, production, and supply of oil pump check valve springs and associated compression springs.

The CAC Group’s in‑house vehicle initiative focuses on manufacturing and selling internationally competitive vehicles, engines, components, and automotive supplies, alongside advancing automotive engineering R&D. The program demands exceptional quality, performance stability, and service life from all supplied components. Leveraging specialized design capabilities and high‑quality supply chain resources, CATALOG directly addressed the project’s critical challenges, successfully passed all customer validation tests and on‑site audits, and secured a volume supply agreement.

How We Solved Key Challenges

Challenge	Our Approach	Outcome
Force decay after sustained use Spring must withstand 5 million cycles without significant load loss	• Material selection: High-end valve spring wire ensures durability and fatigue resistance • Design validation: Proprietary simulation tools verify fatigue life and load retention • Testing: Real-world fatigue testing confirms performance meets spec	Sample passed rigorous validation, exceeding 4 million cycles with stable load characteristics and excellent quality
High-frequency fatigue in oil pump core assembly Long-term operation under high-frequency conditions risks premature fatigue and impacts pump stability	• Precision engineering: Optimized spring design minimizes stress concentration • Process control: Strict manufacturing standards ensure consistency and reliability	Spring demonstrates stable performance under high-frequency operating conditions, supporting reliable oil pump function
Requirement for batch consistency and supply stability Must support just-in-time production without quality variance	• Supply chain management: Sourced from certified high-grade material suppliers • Production planning: Aligned manufacturing schedule with customer program timeline	Achieved consistent batch-to-batch quality and reliable on-time delivery, enabling seamless integration into customer assembly

CATALOG Spring Solutions

Performance Testing & Validation

Every design is verified through real‑world fatigue testing to ensure it meets or exceeds the customer’s requirement of 5 million operating cycles.

Premium Material Selection

We source high‑grade, imported valve spring wire to ensure superior force stability and long‑term fatigue resistance from the material level.

Engineered Design Optimization

Our proprietary design and simulation platform enables precise fatigue‑life prediction and performance validation, significantly shortening development lead times.

Volume Production & Supply Assurance

After passing CAC’s rigorous sample validation and on‑site audit, we proceed to stable mass production and reliable supply, fully aligned with the customer’s production schedule.

CATALOG provides expert consulting services, technical insights, and professional solutions for various types of springs. Welcome to get in touch with us.

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