Interpreting Single-Probe Metal Double-Sheet Detector Applications in Auto Parts Production

On January 29, 1886 Carl Benz built the world's first automobile. Over the next century vehicle performance and internal complexity increased; a typical family car now contains over 10,000 separate parts, with specialized vehicles needing even more.

Component manufacturers supplying stamped and molded parts are essential to the automotive industry. With globalization and industry specialization, auto parts production has become increasingly important.

Stamping processes are widely used due to their simplicity and high efficiency. Cold stamping is common in auto parts and includes separation and forming operations.

01 Separation Operations

Blanking, punching, cutting, trimming

Separation operations refer to processes where parts are separated from sheet material along defined contours.

02 Forming Operations

Drawing, flanging, shaping, hole forming, bending

Forming operations shape parts to required geometry and tolerances.

In stamping production, surface oil, films, and contamination increase sheet surface tension and cause feeding overlap; if not removed, duplicates entering presses can waste material or damage dies.

Traditional dual-probe sensors are hard to install near robotic pick-and-place suction cups when sheet areas are large, limiting applicability.

Atonm MDSC-8000S single-probe double-sheet detection system

Atonm single-probe metal double-sheet detector requires only one probe to detect single/double sheets and can be easily installed beside suction cups with simple installation and use.

The MDSC-8000S is based on electromagnetic induction plus eddy-current principles: eddy currents induced in conductors in changing magnetic fields vary with thickness, enabling thickness detection and classification as no-material, single, or double sheets.

Single-Probe Metal Double-Sheet Detector working principle

Workflow

Sheets enter the probe area; controller compares induced current to reference values and outputs single/double signals to PLC; PLC triggers actuators to remove duplicates and re-feed.

System workflow

Advantages in automotive industry

1. Simple installation without modifying production lines; the MDSC-8000S mounts near the suction cup without extra fixtures.

2. One-button auto-learning makes tuning easy for operators.

3. Wide measurable thickness range (0.1–3mm) to cover common automotive stamping materials.

4. Dual anti-interference design ensures stable detection in noisy and vibrating environments.

As global demand grows and zero-error feeding becomes critical for efficient delivery, Atonm continues R&D investment to support intelligent manufacturing.