Introduction to Roll Marking
Roll marking is a technique developed by Schmidt over 65 years ago as an alternative to press marking. It involves rolling data into a part rather than stamping it, making it a cost-effective solution for applications where press tonnage is too high or where fragile parts could be damaged by heavy stamping. Roll marking is used on both flat and round parts made of various materials for applications such as date coding, serial numbering, and grooving.

Benefits of Roll Marking
Roll marking offers several advantages over press marking, including lower equipment costs, no impact damage to parts, longer-lasting dies, less noise, quick tooling changes, and the flexibility to mark both round and flat parts.

Pressure Requirements for Marking
The document provides a table detailing the pressure in tons required to mark one character on different materials like mild steel, soft aluminum, and tool steel, with approximate depths in inches.

Roll Marking Machines
Schmidt offers pneumatic and hydraulic roll marking machines. Pneumatic roll markers, such as the Series 9 and Series 12, provide clean operation and flexibility, with the Series 9 being a bench-top design and the Series 12 a floor-standing model. Hydraulic roll marking machines, like the Models 175 and 575, offer higher marking force and are suitable for heavy-duty applications. These machines can be adapted for automated systems and are controlled by microprocessors for precision.

Marking Tools and Accessories
Schmidt designs and manufactures a range of marking dies, typeholders, and numbering heads to meet specific marking requirements. Standard tools and accessories are recommended to minimize costs and lead times.

Specifications and Features
The document provides detailed specifications for various models, including maximum ram pressure, stroke, die space, and table size. Features include microprocessor controls, anti-tie-down dual hand controls for safety, and the ability to operate in multiple modes.