Industrial Hydraulics in Plastics Ultrasonic Welding Key hydraulics motion control challenges Ultrasonic welding is an advanced process – and Bosch Rexroth has the hydraulics components and motion control expertise to handle demands such as: Smooth, repeatable clamping forces Maintaining the clamp force during high-frequency vibrational welding Precise control of platen position—to better than 0.0001 inch Better synchronization, synchronized, or coordination options available On-the-fly adjustments Bumpless transition to pressure/force control, to as low as 0.5 psi Fast setpoint response, as fast as 2 ms Compensation for platen weight Simplified hydraulic circuits for a more compact design Reduced machine cycle time Increased repeatability Key Rexroth Solutions VT-HACD controllers offer an unequaled combination of accuracy, repeatability, and load compensation. They give you more capabilities and flexibility in open- and closed-loop control, including the ability to nest loops. The controllers are available in application-specific configurations for clamping, injection, and transport. Proportional valves provide direct control of direction and magnitude of flow, with solenoid actuation and electrical position feedback and optional fieldbus connectivity More on Plastics Processing Productivity Learn the full story on Bosch Rexroth's advanced hydraulic solutions for plastics manufacturing. For more information or to order brochures and catalogs, contact your nearest distributor.