From 5×5mm micro shielding to precision wearable device solutions, Ruishuo Metal provides the industry’s most compact and consistent shielding solutions for global smartphones, tablets, and TWS earbuds. High-volume production capability with ±0.05mm precision control.
The contradiction between ultra-slim design and powerful shielding performance—how to achieve perfect balance in millimeter precision?
5G baseband chips, WiFi modules, and power amplifiers are densely distributed with limited PCB space. Shielding cans must achieve isolation within millimeter ranges.
With million-unit shipment volumes, every piece must meet strict dimensional tolerances, shielding efficiency, and surface quality specifications. Any deviation results in device failures.
Consumer electronics have extremely limited internal space. Shielding can height is often restricted to 2-3mm, requiring single-piece deep drawing or ultra-thin two-piece solutions.
Consumer electronics products iterate quickly, with tight timelines from prototype design to mass production. Suppliers must respond with agility.
Shielding cans must maintain performance under harsh drop, bending, and temperature-humidity cycling tests while not affecting phone appearance or feel.
Consumer electronics products have low profit margins, so shielding can costs must be strictly controlled without sacrificing quality. Finding optimal balance is essential.
Professional shielding can solutions for different application scenarios, covering single-piece to customized multi-cavity designs.
Deep-drawn one-piece molding with seamless design and optimal shielding efficiency. Ideal for micro 5×5mm~15×15mm 5G baseband and WiFi chip shielding. Height as low as 0.8mm.
Frame soldered to PCB, lid with snap-fit assembly for easy assembly and future rework. Suitable for 15×15mm~50×50mm medium-size shielding, especially with power amplifier chips.
Multiple partition design within a single shielding can to isolate multiple RF circuit areas. Ideal for complex PCB layouts like baseband+WiFi+Bluetooth multi-module solutions with effective RF isolation.
Precision stamped frame soldered to PCB via SMT. Combined with optional conductive spacers and springs for highly reliable shielding contact. Ideal for large-size, multi-frequency shielding requirements.
Provided high-end 5G baseband chip shielding for a global flagship phone. Single-piece ultra-thin design with 1.2mm height, shielding efficiency ≥70dB@1GHz. Annual production: 5 million units.
Designed 3×3mm multi-cavity shielding can for true wireless earbuds with extreme space constraints, providing complete isolation for baseband, power amplifier, and Bluetooth modules. Height only 0.9mm, annual production: 10 million units.
Provided integrated 5G/NR+WiFi+Bluetooth multi-frequency shielding cans for smartwatches. Multi-compartment frame design effectively isolates all frequency bands. Bending durability verified through 10,000 cycle testing.
Designed WiFi 6E shielding solution for premium tablets. Special conductive spacers ensure 6GHz frequency band shielding efficiency. Multiple size options support rapid iteration and customization.
| Specification | Single-Piece | Two-Piece | Multi-Cavity |
|---|---|---|---|
| Size Range | 5×5mm~30×30mm | 10×10mm~80×80mm | Custom |
| Height Range | 0.8~2.5mm | 1.5~4.0mm | Custom |
| Shielding Efficiency | ≥70dB@1GHz | ≥60dB@1GHz | ≥65dB@1GHz |
| Dimensional Tolerance | ±0.03mm | ±0.05mm | ±0.05mm |
| Surface Roughness | ≤1.6μm | ≤1.6μm | ≤1.6μm |
| Material Options | Steel, German Silver, Stainless Steel | Steel, German Silver, Copper | Steel, German Silver, Copper |
| Surface Treatment | Nickel Plating, Gold Plating, Chromate | Nickel Plating, Gold Plating, Phosphating | Nickel Plating, Gold Plating |
| Reworkability | Non-Reworkable | Fully Reworkable | Partially Reworkable |
| SMT Compatible | Compatible | Compatible | Frame Compatible |
| Cost Level | Medium | Low | Medium |
Serving telecom, consumer electronics, automotive, medical and many other industries
20+ high-precision stamping presses, 20-member professional R&D team, 2-3 day fast delivery, providing full-process service from design to mass production
Stamping Workshop
Equipped with 20+ high-speed precision stamping presses, with a daily stamping capacity of 3 million strokes and accuracy of ±0.01mm.
Tooling Center
20-member professional R&D team, producing 100+ sets of precision tooling per month, from drawings to finished products in as fast as 2-3 days.
Quality Lab
Incoming inspection → In-process control → Final inspection → Shipping inspection, dual certified with ISO 9001 and IATF 16949.
Our engineers have served 200+ mobile brand projects and deeply understand consumer electronics shielding requirements. Tell us your PCB layout and frequency requirements to get the optimal solution.




Single-Piece Advantages: Optimal shielding efficiency (≥70dB), lowest height (down to 0.8mm), seamless design—ideal for ultra-slim products. Cannot be reworked.
Two-Piece Advantages: Low cost, reworkable for maintenance, flexible assembly—suitable for products with expected rework requirements. Slightly lower shielding efficiency (≥60dB) and relatively higher height.
Recommendation: Prioritize your product’s rework requirements. If rework rate is expected ≤2%, choose single-piece. If >2%, select two-piece solution.
We employ comprehensive consistency controls:
We use industry-standard shielding efficiency testing methods:
Rapid Prototyping Process (Recommended):
Mass Production Preparation:
Yes, we provide comprehensive technical support: