Shenzhen Ruishuo Metal Co., Ltd. — ISO 9001 & IATF 16949 Certified
chinarswj@shieldingcover.com

Mobile & Consumer Electronics EMI Shielding Can Solutions

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.

200+ Successful Cases
Leading Global Brands
Micro from 5×5mm
Hour-Level Rapid Prototyping
Industry Challenges

Mobile Consumer Electronics Shielding Challenges

The contradiction between ultra-slim design and powerful shielding performance—how to achieve perfect balance in millimeter precision?

Space Constraints

5G baseband chips, WiFi modules, and power amplifiers are densely distributed with limited PCB space. Shielding cans must achieve isolation within millimeter ranges.

High Consistency Requirements

With million-unit shipment volumes, every piece must meet strict dimensional tolerances, shielding efficiency, and surface quality specifications. Any deviation results in device failures.

Low Height Restrictions

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.

Rapid Iteration

Consumer electronics products iterate quickly, with tight timelines from prototype design to mass production. Suppliers must respond with agility.

Reliability Verification

Shielding cans must maintain performance under harsh drop, bending, and temperature-humidity cycling tests while not affecting phone appearance or feel.

Cost Control

Consumer electronics products have low profit margins, so shielding can costs must be strictly controlled without sacrificing quality. Finding optimal balance is essential.

Product Solutions

Mobile Consumer Electronics Shielding Solutions

Professional shielding can solutions for different application scenarios, covering single-piece to customized multi-cavity designs.

Single-Piece Ultra-Thin Shielding Can

Recommended

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.

One-piece Formation High Shielding Efficiency Ultra-Low Height No Rework
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Two-Piece Frame + Lid Solution

Popular

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.

Easy Assembly Reworkable Low Cost SMT Compatible
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Multi-Cavity Isolation Shielding Can

Custom

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.

Multi-Cavity RF Isolation Compact Layout Custom Design
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Shielding Frame Solution

High Value

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.

SMT Soldering Flexible Configuration Cost Optimized Automation-Friendly
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Success Cases

Mobile Consumer Electronics Application Cases

5G Flagship Phone Baseband Shielding

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.

Ultra-Thin 1.2mm ±0.02mm Precision 99.9% Consistency

TWS Earbud Ultra-Compact Shielding

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.

3×3mm Ultra-Micro Multi-Cavity Isolation 100% Rework Testing

Smartwatch Multi-Frequency Shielding

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.

Multi-Frequency Isolation Bend Durability RoHS Certified

Tablet WiFi 6E Shielding Can

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.

WiFi 6E Shielding 6GHz Band Optimized Rapid Prototyping
Technical Specifications

Mobile Shielding Can Key Specifications

SpecificationSingle-PieceTwo-PieceMulti-Cavity
Size Range5×5mm~30×30mm10×10mm~80×80mmCustom
Height Range0.8~2.5mm1.5~4.0mmCustom
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 OptionsSteel, German Silver, Stainless SteelSteel, German Silver, CopperSteel, German Silver, Copper
Surface TreatmentNickel Plating, Gold Plating, ChromateNickel Plating, Gold Plating, PhosphatingNickel Plating, Gold Plating
ReworkabilityNon-ReworkableFully ReworkablePartially Reworkable
SMT CompatibleCompatibleCompatibleFrame Compatible
Cost LevelMediumLowMedium
15 Years+
EMI Shielding Manufacturing Experience
1300+
Global Clients
3M Strokes/Day
Daily Production Capacity
100+ Sets/Month
Tooling Development Capability
Trusted By

Chosen by Global Leading Brands

Serving telecom, consumer electronics, automotive, medical and many other industries

ISO 9001 Certified
IATF 16949 Certified
ISO 14001 Certified
NDA Signed
Manufacturing Strength

Professional EMI Shielding Cover Manufacturing Base

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

High-Precision Stamping Workshop Stamping Workshop

High-Precision Stamping Equipment

Equipped with 20+ high-speed precision stamping presses, with a daily stamping capacity of 3 million strokes and accuracy of ±0.01mm.

3M Strokes/Day ±0.01mm Precision
EMI Shielding Can Precision Stamping Manufacturing Tooling Center

In-House Tooling R&D 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.

20 R&D Engineers 100+ Sets/Month
Quality Testing Laboratory Quality Lab

Full-Process Quality Control

Incoming inspection → In-process control → Final inspection → Shipping inspection, dual certified with ISO 9001 and IATF 16949.

ISO 9001 IATF 16949
Consultation

Ready to Choose a Shielding Can
for Your Mobile Device?

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.

1-Hour Response
Technical Team Guidance
NDA Protection
Precision Shielding Can
Tool Library
EMI Shielding Can Precision Stamping Manufacturing
EMI Shielding Can Deep Drawing Manufacturing Process
FAQ

Mobile Shielding Can Frequently Asked Questions

How to choose between single-piece and two-piece shielding cans?

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.

How to ensure shielding can consistency?

We employ comprehensive consistency controls:

  • Tool Precision: ±0.01mm tool accuracy ensures product consistency at the source;
  • Process Parameter Control: Strict batch-by-batch control of stamping pressure, heating temperature, and drawing stroke;
  • 100% Inspection: Every piece undergoes dimensional, shielding efficiency, and surface quality testing;
  • SPC Data: Real-time process metric monitoring with immediate adjustments when deviations detected;
  • High-Volume Production: Monthly capacity of 30 million units naturally improves consistency.
How is shielding can efficiency tested?

We use industry-standard shielding efficiency testing methods:

  • Test Standard: ASTM E2375-21 or MIL-STD-285;
  • Frequency Range: Full-spectrum testing from 100Hz to 10GHz;
  • Test Equipment: Dual-chamber method (electromagnetic shielding chamber) with ±1dB accuracy;
  • Batch Verification: 10% sample testing for shielding efficiency per batch;
  • Report Provision: Complete shielding efficiency test reports available.
How long does it take from samples to mass production?

Rapid Prototyping Process (Recommended):

  • Day 1: Receive design drawings, conduct DFM review;
  • Day 2: Complete process optimization plan, begin tool making;
  • Days 3-5: Tool completion, first production run and testing;
  • Day 6: Sample delivery and initial test reports.

Mass Production Preparation:

  • After sample approval, begin tuning large-batch process parameters;
  • Approximately 2-3 weeks for batch consistency verification;
  • After verification, can proceed to formal production with monthly capacity up to 5 million units.
Can you provide technical support, such as shielding efficiency assessment?

Yes, we provide comprehensive technical support:

  • Shielding Efficiency Assessment: Based on your frequency, signal strength, using EDA tools to predict shielding efficiency and ensure design feasibility;
  • PCB Layout Optimization: Provide PCB layout recommendations based on shielding can design to maximize shielding effectiveness;
  • Reliability Assessment: Analyze shielding can reliability based on product usage scenarios (drop, bending, etc.);
  • Cost Optimization: Recommend cost-optimized solutions while maintaining performance;
  • Mass Production Support: Long-term technical support with rapid problem response.