December 04, 2025
At this pivotal stage of fuel cell mass production, the assembly quality of the stack—the core component of the system—directly determines the final product's performance, lifespan, and reliability. Traditional press-fit assembly methods commonly face core challenges such as imprecise pressure control, uneven internal stress distribution, lack of process data, and excessively long trial-run cycles during production changeovers. These issues have become bottlenecks constraining the industry's drive for quality improvement and efficiency gains.
Shuntian Equipment's independently developed dual-action stack assembly servo press is engineered specifically to address these challenges. It represents not merely an upgrade to conventional press technology, but an integrated stack assembly solution combining precision mechanics, intelligent control, and digital twin capabilities. This solution aims to provide fuel cell manufacturers with comprehensive support throughout the entire lifecycle, from process development to mass production.
Core Advantages: Redefining Stack Assembly Standards Across Five Dimensions
1. Dual-Action Servo Precision Control System
Independent Dual-Drive Power Heads: Utilising independently driven high-response servo motors for both upper and lower press heads, enabling precise control over the overall stack height while independently adjusting the relative compression of each individual cell or sub-stack.
Micrometre-Level Motion Precision: Real-time feedback via fully closed-loop optical encoders achieves displacement control accuracy of ±1μm and force control precision exceeding ±0.5% FS, ensuring uniform stress distribution across each layer.
Flawless Execution of Complex Curves: Supports multi-stage programmable pressing curves, flexibly executing complex processes such as pre-compression, main compression, pressure holding, relaxation, and gradient pressure application. Adaptable to diverse material properties, it achieves highly controllable and repeatable process outcomes.
2. Full Process Data Traceability and Process Management
Comprehensive Data Recording: Real-time acquisition and storage of pressure-displacement-time curves for each stack assembly process. All data is uniquely linked to product serial numbers, ensuring full lifecycle traceability.
Digital Process Packages: Process parameters support recipe-based and visual configuration with one-click recall and version management, enabling ‘changeover as simple as switching machines’ and significantly enhancing production flexibility.
SPC Quality Analysis: Integrated Statistical Process Control (SPC) module provides real-time monitoring of critical parameter trends and early warning of process deviations, delivering reliable data support for continuous process optimisation and quality decision-making.
3. High-Rigidity Integrated Mainframe Structure
Finite element simulation-optimised design constructs an ultra-rigid frame, delivering exceptional resistance to off-centre loads and long-term operational stability. This ensures sustained precision and reliability throughout extended service life.
Equipped with precision guidance systems, utilising heavy-duty linear guides or backlash-free roller guidance mechanisms. This guarantees smooth, stable movement of the press head under high-speed, high-load conditions, eliminating lateral displacement or sticking.
Adopting a modular design philosophy, core components are standardised and modularised for rapid maintenance and replacement. Reserved expansion interfaces support future integration of advanced functions such as vision alignment and online thickness measurement.
4. Safe and Reliable Human-Machine Interaction Experience
Features a large graphical touchscreen interface with guided operational workflows, enabling intuitive configuration of critical parameters. This significantly reduces reliance on operator experience while enhancing operational efficiency and accuracy.
Integrates a multi-layered safety protection system, including safety light curtains, two-hand control buttons, mechanical fall arrest devices, and overload protection. Comprehensive interlock mechanisms ensure full compliance with international and domestic safety standards such as CE/GB.
Clean environment-friendly design, offering optional fully enclosed dust covers and oil-free operation to effectively control particulate generation, meeting cleanliness requirements for stack assembly production environments.
5. Comprehensive Process Support and Services
Delivering turnkey solutions encompassing site surveys, process trials, equipment commissioning, and personnel training to ensure seamless commissioning and rapid operational effectiveness.
Based on your specific materials and stack design, our engineering team delivers in-depth process support. We collaborate on developing and optimising press-fitting process windows to maximise performance and efficiency.
Smart factory interfaces provide standard data communication protocols (e.g., OPC UA, Modbus TCP) for seamless integration with factory MES/ERP systems.
We firmly believe that exceptional manufacturing processes are the foundation of outstanding products. Choosing our dual-action cell assembly servo presses means not only acquiring a high-precision machine, but also gaining a trusted process partner to lay the digital cornerstone for your future. We welcome your enquiries at any time to jointly forge a future of precision engineering.
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