Steel Bar Grinding Solution
Based in Clinton Township, MI, Excel Industrial Electronics, Inc. stands as a leading industrial distributor, system integrator, and Yaskawa authorized service provider. This firm, reputed for customized, cost-effective drive solutions, adeptly applied a Yaskawa U1000 Industrial Matrix drive to resolve a steel bar grinding issue experienced by a machine builder in Detroit.
- Industries
- Metalworking
- Applications
- Material Handling
- Grinding | Polishing
- Client
- Excel Industrial Electronics Inc.
- Centerless Grinder Repair
- Products
- CIMR-UC - U1000 Series
Application Challenge
Centerless Grinder Repair (CGR), a company located in Roseville, MI, required a method to enhance and optimize the performance of its centerless grinding machines that catered to the steel bar market. The existing machines incorporated standard variable frequency drives coupled with dynamic brake resistors. These systems functioned satisfactorily with light stock removal (ranging from .008/in. to .012/in.) and shorter steel bar stock lengths. However, issues arose when loading longer steel bar stock lengths with a higher stock removal requirement. In such situations, excessive heat accumulation in the dynamic brake resistor. With an ineffective resistor, the drive would immediately stop the motor due to an overvoltage (ov) fault. This resulted in considerable downtime while waiting for the resistor to cool down. Increases to the steel bar stock's weight, length, and cut increased the machine's downtime due to frequent ov faults.
The project’s primary objectives included enabling the machine builder to feed steel bar stock without restrictions on weight, length, and grinder cut, thereby improving customer productivity.