TRACETECH™ RID9900 Erased Metal Stamping Detection System

RID9900 is an advanced non-destructive solution for forensic examination of stamped markings on ferromagnetic metals. Using magnetic-optical imaging technology, it detects subsurface deformation caused by original stamping, allowing investigators to visualize erased, altered, or tampered VIN numbers, firearm serial numbers, and engine codes without chemical etching or mechanical grinding.

Subsurface Magnetic Visualization – Reveals hidden impressions beneath polished or ground surfaces
Evidence-Safe Operation – No acids, no abrasion, no damage to material integrity
Real-Time Digital Imaging – Instant on-screen visualization for rapid assessment
High Sensitivity & Repeatability – Stable, consistent results suitable for forensic documentation

Engineered for law enforcement agencies, traffic investigators, customs authorities, and forensic laboratories requiring fast, reliable, and non-destructive serial number restoration.

Quantity

Highlighted Features

Portable Design – Built for Complex Field Environments

Compact and lightweight construction allows seamless operation in workshops, roadside inspections, warehouses, and on-site forensic environments. No bulky setup required.

Easy Operation – Minimal Preparation Required

No special surface treatment or complex calibration needed. Simple cleaning of the inspection area is sufficient, enabling efficient workflow even for non-specialist operators.

Real-Time Visualization – Instant Results

Magneto-optical imaging displays results immediately on screen. Inspectors can observe subsurface stamping anomalies in real time without delays.

Rapid Positioning – Fast Location of Altered VIN Areas

Quickly scans and identifies suspected tampered or erased VIN positions, significantly reducing inspection time and improving operational efficiency.

High Precision – Resolution Exceeding 530 DPI

Delivers ultra-high image clarity with resolution over 530 dpi, ensuring accurate detection of micro-level stamping traces and subsurface deformation patterns.

Built for the Work You Do

Truck Frame

Trailer Frame

Firearm Serial Number

Identity Tag

Equipment Lableplate

Precision Component

Vehicle VINs

High Value Metal Products

Truck Frame

Trailer Frame

Firearm Serial Number

Identity Tag

Equipment Lableplate

Precision Component

Vehicle VINs

High Value Metal Products

Advantage

Mag Stripe Mode

Using magnetic strips and a magnetic excitation rod to directly sample tamping areas, this method is well suited for confined, hard-to-access locations, such as VINs on small vehicles that are often stamped beneath the front seats.

Real-time Mode

Rapid scanning with a magneto-optical probe enables quick detection of suspected tampings locations, making it especially effective when the exact position is obscured by grinding, covering, or corrosion.

Non-Destructive Erased VIN Examination

RID9900 uses advanced Magneto-Optical (MO) technology to detect subsurface magnetic anomalies left by original stampings. It enables fast, precise, and on-site detection of erased VINs and serial numbers without damaging the material.

High Sensitivity & Micron-Level Imaging

Magneto-optical technology converts magnetic signals into high-contrast optical images, enabling micron-level visualization of erased metal stampings. Even after complete removal and up to 0.7 mm additional grinding, subsurface magnetic anomalies reveal the original impressions — meeting millimeter and sub-millimeter inspection standards.

Case Study

Forged VIN Number Extracted On Site

Medium-sized vehicles

Large vehicles

Forged VIN Numbers from Suspected Areas

Specifications

Materials suitable for inspection	Ferromagnetic
Size of the Magnetic Strip	25x250mm (Width x Length)
Magnetic stripe reading time	30 seconds (for a 250 mm stripe)
Detection depth of metal stamping magnetic traces:	0.7 mm beneath the stamp
File size of metal stamp images	Approximately 15 MB (BMP format)
Power Supply	220V AC for portable computer 5V 4.5A adaptor for magnetic excitation device
Single-frame imaging area	18X12mm
Image file format	BMP, JPG, TIFF, AVI (video)
Size	515 x 290 x 220mm
Weight	10.3Kg (including computer)
Working temperature	+10 ~ 35 ℃
Relative humidity	80%