A Cabinet-type Pulse Marking Machine is a specialized device used for marking or engraving alphanumeric codes, logos, barcodes, or other identifiers on various materials (typically metal, plastic, or composite surfaces). It is commonly used in industries like automotive, aerospace, electronics, and manufacturing for part traceability, branding, and compliance.
Working Principle
The machine operates using electro-pneumatic or electromagnetic principles to create high-frequency mechanical impacts (pulses) on a marking tool (stylus). Here’s how it works:
Pneumatic/Electric Actuation
The machine uses compressed air (pneumatic) or an electromagnetic coil to drive a stylus (marking pin) up and down at high speed.
Each pulse creates a small indentation on the workpiece.
Dot-Peening (Dot-Matrix) Marking
The stylus strikes the surface in a controlled pattern, forming dots that combine to create characters, numbers, or 2D codes (like DataMatrix).
The movement of the workpiece (or stylus) is controlled by a CNC system or XY-axis mechanism for precise positioning.
Computer-Controlled Marking
The marking content is programmed via software (connected to a PC or built-in controller).
The machine follows X-Y coordinates to place dots accurately, ensuring high readability.
Key Applications
Industrial Part Identification: Serial numbers, QR codes, or VIN markings on automotive components.
Aerospace & Defense: Traceability markings on critical parts.
Electronics & Medical Devices: Permanent ID marks for compliance (UDI, ISO standards).
Tool & Mold Industry: Engraving part numbers on dies and molds.
Advantages
Durable Marks: Resistant to wear, heat, and chemicals.
Non-Thermal Process: No material deformation (unlike laser marking).
High-Speed Operation: Suitable for mass production.
Versatility: Works on metals (steel, aluminum), plastics, and coated surfaces.
Comparison with Other Marking Methods
| Feature | Pulse Marking | Laser Marking | Inkjet Printing |
|---|---|---|---|
| Permanence | High | High | Low |
| Material Impact | Mechanical (indent) | Thermal (may alter surface) | Non-contact |
| Speed | Medium-Fast | Fast | Very Fast |
| Running Cost | Low (no consumables) | Medium (laser maintenance) | High (ink usage) |
This makes cabinet-type pulse marking machines ideal for industries requiring long-lasting, high-precision marks without thermal distortion.
