Views: 780 Author: HOLS Publish Time: 2026-06-16 Origin: Site
HOLS Automation’s full-automatic solenoid valve assembly and test line is a high-end precision manufacturing solution developed for automotive and industrial solenoid valve mass production. Engineered to address industry pain points such as unstable electromagnetic performance, inconsistent stroke accuracy, and low product uniformity, this production line integrates precision servo assembly, inline parameter calibration, and full-performance testing into one streamlined workflow. It supports both normally open and normally closed solenoid valves with strong model compatibility, covering most mainstream solenoid valve specifications for automotive chassis, braking, thermal management, and industrial fluid control systems.
Adopting fully automated unmanned operation and closed-loop quality control, the line delivers industry-leading assembly precision, excellent batch consistency, and reliable mass-production stability, meeting strict IATF 16949 automotive manufacturing standards.
Different from ordinary general assembly equipment, our solution focuses on the five most critical precision processes that determine solenoid valve core performance, achieving ultimate control of mechanical and electromagnetic parameters:
1. Stroke Adjustment High-precision servo positioning and fine calibration of the valve core travel eliminate assembly deviations, ensuring the opening and closing stroke of each solenoid valve meets design tolerances and guarantees accurate fluid control response.
2. Stroke Press-Fitting Constant-pressure and constant-displacement servo press-fitting technology locks the stroke structure firmly, avoiding stroke drift caused by vibration or long-term operation and improving product service life stability.
3. Air Gap Press-Fitting Precision air gap calibration and press-fitting precisely control the magnetic circuit gap, optimize electromagnetic attraction efficiency, and effectively prevent slow response and insufficient driving force caused by unreasonable air gap values.
4. Electromagnetic Force Press-Fitting With industry-top precision assembly logic, the system accurately fixes the coil and core assembly position to form a stable magnetic circuit structure, ensuring standardized and consistent electromagnetic output of each valve.
5. Electromagnetic Force Retesting 100% full inline retest of electromagnetic force parameters after assembly. Real-time data comparison and screening eliminate defective products with parameter deviation, realizing zero-defect output of core performance.
Industry-Top Precision Process Capability HOLS masters the full set of core precision processes for solenoid valve production. From mechanical stroke control to electromagnetic performance shaping, every key parameter is controllable, traceable, and highly consistent, far exceeding the precision level of conventional assembly lines.
Wide Compatibility for Multiple Valve Types The modular tooling and flexible control system support mass production of both normally open and normally closed solenoid valves. It can quickly adapt to different product specifications, greatly reducing customer’s equipment investment cost and production line upgrade cycle.
Full-Process Closed-Loop Quality Control Integrating assembly, calibration, performance testing, and data tracing in one system, the line realizes real-time monitoring of key process data. All production and test records are automatically stored to support full lifecycle quality traceability.
Stable Mass-Production Performance Optimized process logic and mechanical structure design reduce assembly errors and product failure rates. It maintains high yield and stable cycle efficiency under long-term continuous production, suitable for large-scale batch manufacturing of high-standard solenoid valves.
This automatic assembly and test line is widely applicable to automotive braking systems, suspension systems, thermal management systems, and industrial fluid control solenoid valves. It is the ideal customized automation solution for OEMs and Tier 1 suppliers pursuing high precision, high consistency, and high reliability.
