OEM Metal Shield Factory & Exporters

High-Precision Electromagnetic Interference (EMI/RFI) Custom Shielding Solutions for Next-Generation Electronics and High-Frequency Modules.

Featured Interface Shielding & Connection Assemblies

Engineered to suppress high-frequency interference, our proprietary mechanical layouts offer unparalleled signal integrity for advanced telecom, automotive, and industrial circuit designs.

OEM P-1013-C Manufacturers, Factory

OEM P-1013-C Shielding Component

OEM P-1013-C Manufacturers, Factory
China LB-82-155-a Manufacturers Exporter

China LB-82-155-A Shielding Module

China LB-82-155-A Manufacturers, Exporter
CE Certification SC-PC-K-01 Manufacturers, Factory

CE Certified SC-PC-K-01 Terminal

CE Certification SC-PC-K-01 Manufacturers, Factory
CE Certification SRY10-014-P7 Suppliers, Exporters

CE Certified SRY10-014-P7 Module

CE Certification SRY10-014-P7 Suppliers, Exporters
High-Quality 56Ewith LED Manufacturers, Exporters

High-Quality 56E with LED Shielded Port

High-Quality 56Ewith LED Manufacturers, Exporters
High-Quality 1x8 RJ45 Connector Factory, Exporters

Shielded 1x8 RJ45 Integrated Network Jack

High-Quality 1x8 RJ45 Connector Factory, Exporters
OEM KFC Tactile Switch 2A3-06 Manufacturer, Exporter

OEM KFC Tactile Switch 2A3-06 Shielded

OEM KFC Tactile Switch 2A3-06 Manufacturer, Exporter
OEM LB-4246 Factories, Factory

Precision Metal Shell LB-4246 Assembly

OEM LB-4246 Factories, Factory
Industrial Deep-Dive

The Global Blueprint of Electromagnetic Shielding and RFI Attenuation

As wireless networks accelerate towards millimeter-wave 5G systems, sub-6GHz structures, and rapid transitions into autonomous vehicular IoT environments, the risk of high-frequency electromagnetic interference (EMI) is escalating. High-speed circuit boards packed with powerful microcontrollers, multi-band RF transceivers, and rapid switching power networks operate in incredibly tight spaces. Without customized, high-precision board-level shielding (BLS), high-frequency radiation degrades signals and compromises safety.

Today's metal shield market demands more than simple stamped sheet-metal covers. Advanced designs require multi-cavity architectures, dynamic structural heat sinks, and meticulous co-planarity controls to prevent solder voids during high-temperature surface-mount processes (SMT). Global Tier-1 system developers seek partners who combine advanced mechanical simulation, metallurgy, and automated, high-speed progressive die tooling.

  • Multi-Cavity Custom SMT Shields

    Segmented cellular structures designed to protect delicate, adjacent circuit domains from crosstalk on a single board layout.

  • Engineered Thermal Ventilation Integration

    Precisely calculated micro-perforations optimize natural air currents while preventing EMI leakage across crucial high-speed channels.

Stpete Electronics Headquarters & High-Tech Production Facilities

Wenzhou Stpete Electronics Technology Co., Ltd.

A trusted, high-tech enterprise established in 2005. We specialize in the R&D, advanced design, manufacturing, and global export of precision electronic connectors, interface shells, and custom metal shielding assemblies.

20+
Years Industry Experience
500+
Precision Projects Completed
200+
Highly Skilled Employees
Manufacturing Excellence

Strategic Partner to High-Tech Giants (Huawei & Hisense)

With over two decades of engineering expertise, Stpete Electronics operates at the forefront of connectivity and shielding technologies. We are proud partners of global leaders like Huawei and Hisense, supplying high-performance components that meet rigorous consumer electronics and network telecommunication standards.

Our state-of-the-art facilities feature precision high-speed stamping systems, advanced multi-axis CNC tooling machines, and automated multi-point visual inspection systems. This ensures every piece meets a zero-defect threshold. From RF and IF terminal components to custom USB, DC power outlets, and multi-pin connector headers, our metal shields deliver outstanding dimensional stability and excellent solderability.

We operate fully certified operations compliant with ISO 9001, ISO 14001, and OHSAS 18001. Our strong R&D division has secured 21 invention and utility patents, continually pushing the boundaries of miniaturization and shielding effectiveness.

High Precision CNC and Metal Shield Stamping Production Equipment
State of the Art R&D Engineering Lab at Stpete Electronics
Supply Chain Dominance

The China Manufacturing Advantage: Advanced Tooling Speed & Complete Supply Chains

Sourcing precision OEM metal shields from China, especially from specialized hubs like Wenzhou, offers unparalleled speed and cost efficiency. The local industrial ecosystem provides rapid raw material sourcing (including high-grade German Nickel Silver, pre-plated Tin-Steel, and Beryllium Copper alloys) alongside rapid progressive tooling development.

At Stpete Electronics, we have refined this supply chain to deliver high-precision tooling turnarounds in days rather than months. We invest over 15 million RMB annually in our manufacturing lines, enabling us to quickly adapt to dynamic design iterations and scale-up production.

Our automated high-speed progressive stamping lines maintain strict coplanarity limits of < 0.08mm. This ensures flat, reliable contact across every point on custom printed circuit boards. It also guarantees seamless SMT pick-and-place assembly, lowering production reject rates for our global customers.

Engineering Specifications & Material Science

A comprehensive overview of our custom metallurgical and mechanical capabilities for advanced EMI shielding components.

Precision Metal Shield Design Parameters

Substrate Material Selections

We work with high-performance alloys including German Nickel Silver (C7701/C7521) for superior oxidation resistance and solderability without post-plating; Tin-Plated Cold Rolled Steel (SPCC) for affordable low-frequency shielding; and Beryllium Copper (BeCu) for high-performance spring fingers and ground contacts.

Advanced Dimensional Tolerance & Coplanarity

Our production facilities maintain strict stamping tolerances within ±0.01mm. We run real-time automated 3D optical coplanarity testing on all SMT parts to ensure vertical variance is kept under 0.08mm. This guarantees defect-free SMT solder connections.

SMT Packaging Options

We deliver shields in high-precision Carrier Tape-and-Reel packaging configurations. We integrate integrated plastic pick-and-place targets or flat-top metal designs to support ultra-fast automated pick-and-place operations.

Corrosion and Environmental Resistance

All plating options are strictly RoHS & REACH compliant. Components are certified to survive standard 48-hour to 96-hour neutral salt-spray test matrices (ASTM B117) without micro-pitting or whiskers forming.

Tailored Solutions for Specialized Markets

Our high-precision EMI shielding and connection components are engineered to deliver reliable performance across diverse, demanding operating environments.

Automotive & EV Electronics

High-vibration resistant shielding boxes, custom interface covers, and secure connectors engineered for ADAS, LiDAR sensors, battery management systems, and high-frequency in-vehicle infotainment.

Telecommunication & IoT

Multi-channel shielding cans and custom connector housings optimized to prevent cross-channel signal degradation in high-speed network switches, routers, optical modems, and localized IoT base-stations.

Precision Medical Devices

Specially cleaned, highly stable non-magnetic shielding frames and high-speed connectors for portable ultrasound units, sensitive patient monitoring telemetry systems, and MRI control modules.

Quality Control Framework

Our Rigorous Multi-Stage Testing and Quality Assurance Protocol

At St. Peter, quality is our most valuable asset. Guided by technological innovation and built on a foundation of safety, our components undergo strict quality control at every phase—from raw material inspection through multi-stage processing to final validation.

Our state-of-the-art testing facility utilizes advanced X-Ray fluorescence spectrometers to measure plating thicknesses down to the nanometer. We also employ dedicated optical coordinate-measuring machines (CMM) and custom SMT reflow ovens to guarantee 100% SMT process reliability under intense lead-free soldering profiles.

Through rigorous inspection at every step, we eliminate defective components before they can leave our production floor. This systematic approach ensures that every metal shield and high-speed connector delivers long-term reliability in the field.

Advanced Dimensional Testing Inspection Lab
Corporate Culture & Agility

The Heart of Stpete: Fostering Innovation Through Strong Collaboration

We believe that high-quality products are built by motivated, cohesive teams. This summer, our company organized an outdoor team-building activity in a picturesque natural setting to strengthen collaboration, build trust, and enhance team cohesion outside the fast-paced factory environment.

Through engaging team-based challenges requiring close coordination and creative problem-solving, our team built stronger bonds and a shared sense of purpose. This supportive atmosphere translates directly to our production lines, enabling smooth cross-department collaboration that accelerates new product development. By reducing workplace stress and renewing our collective energy, we ensure our team remains focused and ready to deliver outstanding support to our global clients.

Stpete Electronics Team Building Outdoor Event

Expert Q&A: Advanced Technical Insights

Comprehensive answers to key technical questions from RF engineers, hardware architects, and B2B procurement professionals.

Q1: What are the main benefits of using Nickel Silver (C7701) for board-level shielding?
Nickel Silver (C7701/C7521) is an exceptionally stable copper alloy containing nickel and zinc. It does not require secondary surface plating, making it highly cost-effective and structurally stable. It offers outstanding oxidation resistance, maintains reliable electrical contact, and can be soldered directly during automated reflow processes. Its balanced permeability and electrical conductivity make it the gold standard for EMI shielding across high-frequency RF transceivers.
Q2: How does Wenzhou Stpete prevent co-planarity warping in large SMT shield designs?
We prevent co-planarity warping by optimizing the geometry of the raw stamping blanks and running precise thermal simulations on the prospective stamping lines. Additionally, we integrate custom rib features into the design to increase structural rigidity, and maintain a rigorous stamping coplanarity tolerance threshold of < 0.08mm. Each batch is 100% verified using automated inline laser scanners before packaging.
Q3: Can your custom EMI shields feature integrated thermal transfer pads?
Yes, we regularly design custom multi-cavity board-level shielding cans with built-in thermal relief. By integrating custom venting structures alongside high-efficiency thermal interface materials (TIM), our shielding solutions simultaneously suppress EMI and dissipate heat from modern, high-speed microchips.
Q4: What is the average manufacturing tooling cycle time for a custom OEM prototype?
For standard prototype stamping layouts, our fast-track in-house design team can construct custom single-stage soft tooling and deliver fully functional physical samples within 7 to 10 working days. For high-volume production, we can design, build, and validate high-speed progressive production dies within 21 to 28 days.
Q5: Do your shielding components comply with international environmental regulations?
Yes, all metal alloys, plating materials, and chemical surface treatments used in our facilities are 100% compliant with RoHS and REACH regulations. We provide complete material certification sheets, ICP testing reports, and compliance documentation with every product delivery.
Q6: How do micro-perforations affect RF attenuation at high frequencies?
Perforations are calculated based on target operational wavelengths. To prevent EMI leakage, the diameter of any ventilation holes must be significantly smaller than the targeted wavelength of the interference frequency (typically < λ/20). Our engineering team runs electromagnetic simulations to ensure ventilation holes provide maximum airflow without compromising EMI shielding performance.
Q7: What is the dynamic difference between single-piece and two-piece shielding cans?
Single-piece shields are soldered directly to the PCB, providing cost-effective, high-reliability shielding but limiting access to components. Two-piece shields feature a permanently soldered SMT fence and a removable snap-on cover, allowing easy access for component tuning, firmware flashing, and repairs during development or maintenance.
Q8: How does Stpete ensure high solderability and shelf-life for tin-plated steel shields?
We use pre-plated tin-steel and apply premium plating with an underlayer of nickel barrier plating. This barrier prevents iron-tin intermetallic growth and diffusion, maintaining excellent solderability and extending the shelf-life of our components to over 12 months under standard storage conditions.

Precision Connector Assemblies & Power Ports

A secondary portfolio of our specialized, CE-certified high-durability connection interfaces designed for reliable signal and power routing.

CE Certification 5-pin Header Manufacturer-Exporter

CE Certified 5-pin Terminal Header

CE Certification 5-pin Header Manufacturer-Exporter
CE Certification SRY08-020-P7 Manufacturers, Factory

CE Certified SRY08-020-P7 Connector

CE Certification SRY08-020-P7 Manufacturers, Factory
China USB Connector Factory, Exporter

China Precision USB Connector Port

China USB Connector Factory, Exporter
China DC-008-2.0-C Factory, Exporters

Heavy Duty DC-008-2.0-C Jack

China DC-008-2.0-C Factory, Exporters
OEM CK-3.5-320C-A Factories, Exporters

OEM Audio Jack CK-3.5-320C-A Assembly

OEM CK-3.5-320C-A Factories, Exporters
China DC012-2.0 Copper Manufacturers, Factory

High Conductivity DC012-2.0 Copper Jack

China DC012-2.0 Copper Manufacturers, Factory
China TYPE-C Connector-01 Suppliers, Exporters

High Speed Type-C Connector-01 Port

China TYPE-C Connector-01 Suppliers, Exporters
High-Quality LC-PC-A-01 Manufacturers, Factories

High-Quality Fiber Adapter LC-PC-A-01

High-Quality LC-PC-A-01 Manufacturers, Factories

For inquiries about our products or pricelist, please leave to us and we will be in touch within 24hours.

Partner with a premier Chinese engineering factory that understands high-volume quality control, strict EEAT compliance, and advanced mechanical shielding designs.

Contact Our Engineering Division