Shenzhen Xinhaisen Technology Limited
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Overview
Xinhsen Technology is a leading manufacturer of precision-etched bipolar plates for PEM fuel cells, redox flow batteries, and other electrochemical applications. Our advanced chemical etching technology enables mass production of complex flow field patterns with micron-level accuracy, offering superior performance and cost advantages over traditional manufacturing methods.
| Parameter | Specification |
|---|---|
| Material Options | 316L Stainless Steel, Titanium (Grade 1/2), Nickel 201, Aluminum 5052 |
| Thickness Range | 0.1mm - 1.0mm (expandable to 1.5mm for special applications) |
| Plate Dimensions | Up to 500mm × 500mm (custom sizes available) |
| Dimensional Tolerance | ±0.03mm (standard), ±0.01mm (high precision) |
| Channel Width | 0.2mm - 3.0mm (custom designs available) |
| Channel Depth | 0.05mm - 0.8mm (±0.01mm tolerance) |
| Surface Roughness | Ra 0.8μm (as-etched), Ra 0.4μm (polished) |
| Production Capacity | 1,000,000+ plates/month |
| Flatness | ≤0.05mm/m² |
✔ Ultra-Precise Flow Channels - Maintains ±0.03mm pattern accuracy
✔ Material Expertise - Corrosion-resistant alloys with conductive coatings
✔ Design Flexibility - Serpentine, parallel, interdigitated, or custom patterns
✔ Cost Efficiency - 50-70% cost reduction vs. CNC machining
✔ Rapid Prototyping - Functional samples in 7-10 working days
✔ Scalable Production - Seamless transition from prototypes to mass production
Q1: What is the minimum feature size you can achieve?
A: We routinely produce 0.15mm wide channels with 0.05mm depth, and can achieve 0.1mm features for critical applications.
Q2: How do your etched plates compare to stamped/graphite plates?
A: Etched plates offer:
Better dimensional accuracy (±0.03mm vs ±0.1mm)
No material stress or deformation
More complex channel geometries
Faster design iterations
Q3: What coatings do you offer for corrosion protection?
A: We provide:
Gold plating (0.1-0.5μm)
TiN/TiCN PVD coatings
Conductive polymer coatings
Custom solutions per application
Q4: What quality certifications do you have?
A: Our production is:
ISO 9001:2015 certified
IATF 16949 compliant (automotive grade)
Material traceability (EN 10204 3.1/3.2)
Q5: Can you produce microporous plates for gas diffusion?
A: Yes, we can create plates with:
0.03mm micro-holes
30-70% open area ratios
Integrated porous layers
Q6: What testing do you perform?
A: Standard tests include:
Helium leak testing (<1×10⁻⁹ mbar·L/s)
Contact resistance measurement (<10 mΩ·cm²)
Salt spray testing (500+ hours)
Pressure drop analysis
• 15+ Years Experience in precision metal etching
• Complete In-House Capabilities from design to final inspection
• Fast Turnaround - 5-7 days for prototypes
• Cost Optimization - No expensive tooling required
• Technical Support - CFD simulation assistance available
