Hydraulic Quick Couplers & Valves
Professional Assembly Ensures the Quality of Hydraulic Components

Assembly Line
Leveraging decades of industry expertise and automation advancements, we have established semi-automated assembly lines for hydraulic quick couplings and valves. Where automation faces limitations, our skilled technicians ensure precision through manual assembly with specialized tooling, combining efficiency with craftsmanship.
Rigorous End-of-Line Testing:
Prior to packaging, every product undergoes custom-designed performance verification using proprietary testing equipment, achieving a 99.999% pass rate for:
1. Low-pressure air leakage test
2. Interchangeability test with other popular brands in the market

Our assembly machines include:
1. Automatic assembly machines – For efficient, consistent production
2. Cap-spinning machines – Ensures secure fastening of components
3. Air-tightness testers – Verifies leak-proof performance
4. Punch presses – For precision hole-punching and stamping
5. Hydraulic presses – Handles high-force shaping of parts
6. Laser marking systems – Provides permanent batch/product identification
7. Ultrasonic cleaning tanks – Removes contaminants from finished products
8. Product drying ovens – Prepares items for final packaging
9. Air compressors – Powers pneumatic tools and testing equipment


- Name:
- NINGBO E.H HYDRAULIC CO., LTD.
- Tel:
+0086-574-27882700
- Email:
- sales@ehhydraulics.com
- WhatsApp:
- 8613967841269
- Address:
- No.7 Longteng Road, Maoshan Industrial Area, Jiangshan, Yinzhou District, Ningbo, China, 315193