SHANGHAI ROYAL TECHNOLOGY INC. Unveils RTEP400 Fingerprint Display Vacuum Metallizer for Advanced Forensic Applications

SHANGHAI ROYAL TECHNOLOGY INC., a leading innovator in vacuum coating solutions, has launched the RTEP400 Fingerprint Display Vacuum Metallizer, a state-of-the-art system designed to revolutionize fingerprint visualization in forensic investigations. This portable, high-performance machine leverages vacuum metal deposition (VMD) technology to detect latent fingerprints on diverse surfaces, including metals, plastics, glass, and fabrics, with unparalleled clarity3.

1. High-Resolution Fingerprint Imaging:
   The system deposits ultra-thin layers of metals (e.g., zinc, gold, silver, or aluminum) onto evidence surfaces, creating a stark contrast between fingerprint ridges and the background. This process reveals even aged or contaminated fingerprints that traditional methods (e.g., 502 fuming) often miss15.

2. Portable and User-Friendly Design:
   Unlike bulky traditional systems, the RTEP400 requires no water-cooling and operates on a single-phase 220V power supply. Its compact footprint (2m × 1m × 2.3m) and automated controls (PLC + touch screen) make it ideal for mobile crime labs and field operations3.

3. Rapid and Efficient Processing:
   With a turbo molecular pump and dual-stage rotary vane pump, the chamber achieves an ultra-high vacuum (9.0 × 10⁻⁵ Pa) in ≤15 minutes. This efficiency reduces processing time for critical evidence3.

4. Versatile Material Compatibility:
   The system handles a wide range of materials—including polymers, ceramics, and textiles—and supports multiple metals (e.g., gold-zinc or silver-zinc combinations) tailored to specific substrates510.

The RTEP400 addresses longstanding challenges in fingerprint detection:

• Aged and Challenging Prints: Successfully visualizes fingerprints older than 7 days on surfaces like stainless steel, copper, and aluminum5.

• Complement to Traditional Methods: Enhances 502 fuming results when used sequentially, improving contrast and detail retention1.

• High-Temperature and Contaminated Evidence: Effective even on surfaces exposed to extreme conditions (e.g., fire-damaged ceramics)1.

Vacuum metal deposition, pioneered in the 1970s, uses atomic-level metal deposition to expose fingerprint residues. SHANGHAI ROYAL TECHNOLOGY INC. has refined this process with:

• Precision Control: Adjustable metal ratios (e.g., 10mg silver + 100mg zinc for copper alloys) optimize clarity5.

• Automated Workflows: One-touch operation reduces human error, ensuring consistent results7.

The RTEP400 is already deployed in forensic labs across Europe, Asia, and the Americas. With a production capacity of 15 units/month and customizable configurations, SHANGHAI ROYAL TECHNOLOGY INC. aims to support law enforcement agencies worldwide3.