Electric Stoppers

Festo Electric Stoppers

Festo Electric Stoppers provide a streamlined solution for controlling the flow of goods in automated transport systems. Designed to operate without pneumatic supply, these devices combine an electric drive, integrated controller and interface for digital I/O—enabling direct connection to a PLC and mounting on standard conveyor profiles. 

They offer gentle stopping, holding and release of loads between approximately 0.25 kg and 100 kg, and are available in multiple sizes for different applications.

⭐ Important: These stoppers function without compressed air, include adjustable cushioning, and are ready for direct digital integration, making them highly efficient and easy to integrate.

Design & Functionality

• The electric stopper features an integrated motor controller and combined power interface, enabling it to be connected directly to digital I/O of higher-level controllers. 
• Key features include:
  • Three operating positions: Extended stop, cushioned hold, and retracted release—ensuring precise flow control. 
  • Adjustable cushioning integrated into the housing, protecting both goods and mechanical components. 
  • For example: The EFSD size 50 unit features an 18 mm cushioning length, current consumption up to 2 A, and mounting in any orientation. 
• With LED status indicators and M12 plug connectors, the unit simplifies diagnostics and servicing. 
• Ideal for transfer systems, where mounting is achieved with just two screws directly onto the profile. 

⭐ Important: The built-in electronics, adjustable cushioning and direct digital interface mean the electric stopper offers minimal integration effort, clean installation, and efficient stopping of loads without air supply.

Total Crossed Beams

(Analogy for full functional coverage)

• The device covers the full stopping cycle: detection, stop, hold, and release.
• This ensures complete process control of conveyed items—reducing jams, wear and unexpected line stops.

Beam Pitch Options

(Re-interpreted as size/range and load capacity options)

• Available sizes include size 20, size 50, and size 100, allowing stopping of loads from ~0.25 kg up to ~100 kg depending on speed and size. 
• Typical cushioning lengths: ~11.5 mm (size 20), ~17.5 mm (size 50), ~18.2 mm (size 100) for smooth deceleration. 
  ⭐ Important: The size options allow you to select the correct electric stopper based on load weight, conveying speed, and line height, giving application-specific flexibility.

Intrinsic Synchronism

• The internal drive, controller and sensing are synchronised in one unit—no external valve or timing module is required.
• This provides reliable sequence control, consistent actuation, and straightforward commissioning in automation systems.

Operational Advantages

• Air-free operation—no compressed air needed, reducing infrastructure cost.
• Integrated logic and I/O—connects directly to PLC for simplified control.
• Adjustable cushioning and quick mounting—gentle handling of conveyed goods and easy installation.
• High flexibility—multiple sizes, load capabilities, digital diagnostics.
• Applications: Transfer systems, packaging lines, conveyor gates, material feed control, logistic automation where gentle, fast stopping and release of goods is required.