The John R. Wald Company designed the Model M31 Numeral Coating Machine to fit the needs of license plate manufacturers worldwide. Our facility in Huntingdon, Pennsylvania manufactures the Model M31 completely in-house. We also supply replacement parts and comprehensive repair and maintenance service.
This high-speed Numeral Coating Machine is designed for the application of ink to the embossed portions of license plates. With a maximum recommended throughput of 2,000 plates per hour, the system is complete with conveyor, coating head unit, heavy box base, control panel, and variable drive system, ready for operation. Plates are manually loaded and then pushed by the feed pawls on to the conveyor and under the coating head unit. The coating head unit contains two synthetic rubber-coating rollers positioned for proper contact with plates passing along the conveyor. These rollers run continuously with the distribution roller and fountain roller, both of hardened and polished steel. The fountain and distribution rollers, fitted with precision-machined seals, form a mill-type reservoir trough to carry a reserve ink supply. Fine spacing adjustments of these rollers maintain a uniform ink film on the rubber rollers. The coating head unit and its components are readily removable for easy cleaning. All rollers are driven at speed ratios selected to permit a controlled distribution of enamel throughout the coating system. Power for the coating head is taken from the conveyor through a series of spur gears to assure positive synchronization of the coater roll surface and conveyor apron.
