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PB3303 Automatic Shielding Box

The PB3303 is a high-performance shielding box designed to provide an interference-free testing environment for wireless communication devices. Constructed from stainless steel using precision sheet metal processes, this model combines durability with excellent electromagnetic shielding properties. Its clamshell design with pneumatic control enables smooth operation and reliable sealing performance.
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Product Description

Product Overview

The PB3303 is a high-performance shielding box designed to provide an interference-free testing environment for wireless communication devices. Constructed from stainless steel using precision sheet metal processes, this model combines durability with excellent electromagnetic shielding properties. Its clamshell design with pneumatic control enables smooth operation and reliable sealing performance.

Product Information

  • Model: PB3303
  • Category: Shielding Box
  • Control Mode: Pneumatic
  • Structure: Clamshell-Type
  • Material: Stainless Steel
  • Manufacturing Process: Sheet Metal Fabrication
  • Exterior Color: Beige
  • Application Fields:

    • EMI (Electromagnetic Interference) Testing
    • EMS (Electromagnetic Susceptibility) Testing
    • Coupling Testing (antenna optional)
    • RF Functionality Testing

Product Features

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Technical Parameters

Technical Specifications

  • Internal Working Dimensions: 370 mm (L) × 370 mm (W) × 225 mm (H) ±5 mm
  • Box Dimensions: 430 mm (L) × 430 mm (W) × 285 mm (H) ±5 mm
  • Overall External Dimensions: 555 mm (L) × 555 mm (W) × 370 mm (H) ±5 mm
  • Net Weight: Approx. 45 kg
  • Lid Opening Angle: 47°
  • Shielding Effectiveness:

    • 70 dB @ 0.8 GHz – 3.0 GHz

Function & Operating Principle

The PB3303 shielding box is designed to block and control electromagnetic interference by utilizing conductive and/or magnetic materials. Its dual functionality includes:

  1. Internal Emission Control: Absorbs and confines electromagnetic radiation generated by the device under test, preventing leakage to the external environment.
  2. External Interference Rejection: Prevents external electromagnetic signals from penetrating the shielded space, ensuring test signal purity.

This shielding box is ideally suited for testing wireless communication products such as:

  • Mobile phones
  • Wireless network adapters
  • USB data cards
  • Wi-Fi routers and modules

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