Festo Advances Pneumatic Technology with Digital Closed-Loop Control

Pneumatic and electric actuators are both celebrated for their precision, but electric actuators often stand out for delivering the highest levels of accuracy. This raises a critical question for engineers: How much precision does your application require?

Once the precision level is established, the decision between pneumatic and electric actuation often depends on a detailed evaluation of performance, cost, and potential productivity gains. To address these considerations, Festo has introduced its Controlled Pneumatics line-a breakthrough in pneumatic technology. By integrating a digital closed-loop control strategy, this new line delivers enhanced energy efficiency, dynamic response, and higher precision, making it ideal for applications like web tensioning, welding, surface processing, flexible gripping, dispensing, PET bottle blowing, and diaphragm pump control.

Efficiency, Precision, and Sustainability

Festo's Controlled Pneumatics system is built on advanced features such as digitally controlled proportional pressure regulators, high-speed communication, and precision control algorithms. Key benefits include:

1.Lower Energy Requirements:

The incorporation of piezoelectric valves reduces energy consumption by 95% compared to solenoid valves. These valves open proportionally to enable precise control of pressure and flow, making them highly responsive for dynamic applications.

2.Silent Operation:

Unlike conventional pneumatic actuators, which can be noisy, Festo's piezoelectric valves operate silently, improving workplace conditions.

3.Reduced Compressed Air Usage:

By cutting compressed air usage by up to 50%, Festo's system minimizes energy costs and reduces carbon dioxide emissions, contributing to more sustainable operations.

Innovative Components in Festo's Controlled Pneumatics Line

Festo's new line includes the following advanced components, designed for high precision and energy efficiency:

VPPI Proportional Pressure Regulator:

Ideal for high flow rate applications, ensuring stable performance in demanding environments.

VTEM Motion Terminal:

A versatile, multi-channel controller for both large and small workpieces. Its downloadable control algorithms include flow control, pressure regulation, positioning, and leakage diagnostics. With its ability to regulate pressures independently at two valve outlets, the VTEM motion terminal eliminates the need for external sensors.

VEAB Low Flow Rate Proportional Pressure Regulator:

Suited for highly precise applications with pressure ranges up to 6 bar.

VTEP Compact Valve Terminal:

Provides multi-channel low flow rate pressure control with high precision and dynamic response, supporting hybrid functionality with solenoid valves.

VEFC Compact Mass Flow Controller:

Designed for controlling inert gases with precision.

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Real-World Applications of Controlled Pneumatics

Festo's Controlled Pneumatics technology has already demonstrated significant results in industrial applications:

Silicon Wafer Manufacturing:

A nitrogen gas (N₂) purge system utilizing Controlled Pneumatics reduced the N₂ flow rate for oxygen flushing by 75%. This innovation saved $163,000 per 1,000 systems annually while cutting CO₂ emissions by 1,045 metric tons.

Tire Manufacturing:

At a tire manufacturing plant, the VTEM motion terminal replaced numerous small pneumatic cylinders. By optimizing pressure control across zones with proportional valves, the plant reduced valve slices by 50% and achieved precise pressure regulation without external sensors.

Revolutionizing Pneumatics for Modern Manufacturing

Festo's Controlled Pneumatics line represents a leap forward in pneumatic technology, addressing critical challenges in precision, energy efficiency, and sustainability. By combining digital closed-loop control with innovative hardware, Festo enables industries to enhance productivity while reducing environmental impact and operating costs.

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